Scottish Rock Garden Club Forum

General Subjects => Flowers and Foliage Now => Topic started by: Robert on April 03, 2024, 07:33:02 PM

Title: April 2024 in the Northern Hemisphere
Post by: Robert on April 03, 2024, 07:33:02 PM
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Currently in our Sacramento garden, the first Calochortus albus flowers are opening. This accession, RMB 149, is from the Mosquito Road area of El Dorado County, California from an elevation of 1,465 feet (447 meters). It is a typical representative of the species. What is exciting is that the next generation of plants is progressing along well. It will not be long until I have new accessions as well as hybrids to evaluate each year.

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I obtained seeds of the California Central Coast forms of Dipterostemon capitatus ssp. capitatus from a gardening friend. After a number of attempts, I have never been able to get these plants to cross with our local Sierra Nevada forms of this species. Reported chromosomes numbers vary with this species ranging from n=9,18, 27, 36. It is likely some chromosome non-homogeny prevents the two groups from crossing easily with each other. I enjoy experimenting and solving with difficult horticultural problems, so I will keep trying and see what happens.

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Various forms of Triteleia ixioides are coming into bloom in our garden.

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I especially appreciate this Triteleia ixioides hybrid based on Triteleia ixioides ssp. unifolia. I find the dark markings on the petals especially interesting and attractive. This hybrid selection is also a compact grower. Many more hybrids are in the pipeline. Each year, there will be new accessions and hybrids to evaluate.

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Triteleia laxa RMB 694 is from the Deer Creek Hill region of El Dorado County, California. The seeds were gathered at an elevation of 776 feet (237 meters) where the grasslands of the Southern Sacramento Valley end and the Blue Oak savannah of the Sierra Nevada Foothills begin. This species grows abundantly at this site. This form is very typical of this species.
Title: Re: April 2024 in the Northern Hemisphere
Post by: Robert on April 03, 2024, 07:35:38 PM
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Everything in our garden needs to fit into the general gardening scheme. I have no interest in growing or collecting Ixia species. The bright colors fit into our California garden scheme, so they will be worked into the garden where they will best fit in. Plants that do not fit in end up in the compost.

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Lupinus albifrons var. albifrons fits into our garden perfectly. This plant puts on a spectacular flower show every year. The silvery leaves look great all year.

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There can be a great deal of genetic diversity within each species. I make new accessions each year. Creating hybrids is an intriguing idea for me. Pictured is one of the new plants coming into bloom for the first time. Nothing remarkable with this plant, however there are all sorts of possibilities.

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Diplacus kelloggii RMB 1053. I am very excited about working with this species. This accession is from an elevation of 3,385 feet (1,032 meters) in the Sierra Nevada Mountains. This species was found growing on an open rocky hillside, a natural rock garden, with many other annual and perennials species.

In addition, I have new accessions of very interesting forms of Diplacus viscidus and Diplacus torreyi that will be coming into bloom later this spring. I will post photographs as they come into bloom.

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Our orange form of Rhododendron austrinum is coming into bloom.
Title: Re: April 2024 in the Northern Hemisphere
Post by: Robert on April 03, 2024, 07:37:00 PM
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R & D is my primary garden interest. For the most part, everything needs to have a practical garden application. We strive to create a garden ecosystem that looks great. Long ago I attempted to collect plants and create a garden. For me the two were incompatible. The garden was ugly.  :P  I know many others can pull this off, but it did not work for me at all. In addition, I have always had a passion for R & D. I enjoy growing populations of highly variable plants. R & D and creating a garden I like, works perfectly for me.

Here, in our garden, a new and a potentially nice form of Sisyrinchium bellum is being evaluated with Phacelia campanularia. The garden is looking better each season. I am very pleased.  :)
Title: Re: April 2024 in the Northern Hemisphere
Post by: Mariette on April 04, 2024, 05:05:54 PM
Robert, You´re very fortunate to live in a part of the world where so many beautiful plants are at home as well as may be grown in Your garden! The yellow triteleia with the dark stripe looks really exceptional!

In my area, the natural  range of plants is much more limited, and those for the garden have to stand lower temperatures compared with California.

The first of my lilacs which flowered already in March was Syringa pinnatifida.

(https://up.picr.de/47364600cn.jpg)

For the first time I noticed flowers on a Ruscus aculeatus I´m growing since about 20 years - maybe because they are so tiny.

(https://up.picr.de/47364599gl.jpg)

A fritillary seedling flowering in the green-house, once again a lost-label plant.

(https://up.picr.de/47364598wx.jpg)

Title: Re: April 2024 in the Northern Hemisphere
Post by: Andre Schuiteman on April 04, 2024, 09:28:40 PM
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Sown from AGS seed in January 2018, the Japanese Phyllodoce nipponica subsp. tsugifolia took some years to become large enough to handle. Seedlings didn't survive long in the open garden but one is doing well in a trough dedicated to ericaceous mini-shrubs. A plant of Ramonda myconi also grows in there, seen here in the background, and it looks gigantic compared to the Phyllodoce
Title: Re: April 2024 in the Northern Hemisphere
Post by: Redmires on April 05, 2024, 07:48:47 AM
What a beautiful little gem! Your picture sent me searching to see if there were any Phyllodoce species growing in the UK, but sadly it seems there's only a tiny band of P. caerulea in Scotland (and it must be at risk from climate change), so it's unlikely I'll ever see it in the wild. I like the sound of your ericaeous trough - could you post more photos?
Title: Re: April 2024 in the Northern Hemisphere
Post by: ashley on April 05, 2024, 11:49:22 AM
Yes indeed, such a beautiful plant, aptly named and well photographed.
Title: Re: April 2024 in the Northern Hemisphere
Post by: Andre Schuiteman on April 05, 2024, 02:13:17 PM
What a beautiful little gem! Your picture sent me searching to see if there were any Phyllodoce species growing in the UK, but sadly it seems there's only a tiny band of P. caerulea in Scotland (and it must be at risk from climate change), so it's unlikely I'll ever see it in the wild. I like the sound of your ericaeous trough - could you post more photos?

This is the whole thing:
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Unfortunately, the 200k file size limit here forces me to make it quite small. Apart from various 'other plants', it contains the following Ericaceae: Rhododendron lowndesii, R. pumilum, Rhodothamnus chamaecistus, Gaultheria trichophylla, Cassiope lycopodioides, and Phyllodoce nipponica subsp. tsugifolia.  The trough (or rather, planter) is sited so that it only gets morning sun. The interior diameter is 57 cm.
Title: Re: April 2024 in the Northern Hemisphere
Post by: Robert on April 05, 2024, 07:12:29 PM
The old-timers in El Dorado County, California had a saying that it always “snowed on the dogwoods”. The reference was to our native dogwood, Cornus nuttallii. The reference was also to the fact that it was too early to plant the summer garden until it “snowed on the dogwoods”. In our area, the native dogwoods are found mostly at an elevation of 3,000 to 4,000 feet (914 to 1,219 meters). This snow generally occurred about 15 April when the native dogwoods were in bloom.

It is still too early for the native dogwoods to be blooming, however a late, low-elevation snowstorm arrived yesterday, 4 April. We had snow at our Placerville farm at an elevation of 1,500 feet (457 meters). The last time we had an April snowstorm at our farm was back in ~ 1980. I do not remember the exact year, however it was before 1984 according to my weather records. It was known as the April Fools Day Snowstorm, as it occurred on 1 April. ± 4 inches (10 cm) of snow fell down to an elevation of 1,000 feet (305 meters), stalling traffic on Highway 50, the main east-west route in El Dorado County. It was a mess.

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Snow falling on the front deck of the farm house.

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Rhododendron canescens in bloom (left) and falling snow.

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Part of the orchard.

The peaches and Japanese plums have already bloomed. Unless it becomes extremely cold, which is very possible with clearing skies, the fruit should be okay. With a hard freeze, there will be no peaches or plums this year. The apples and pears have not bloomed yet and are safe.
Title: Re: April 2024 in the Northern Hemisphere
Post by: ian mcdonald on April 06, 2024, 02:59:34 PM
Redmires, there is a photo of the Phyllodoce caerulea in Scotland on "my local patch and wildlife" March 16th 2015 for your interest.
Title: Re: April 2024 in the Northern Hemisphere
Post by: Robert on April 09, 2024, 05:53:08 PM
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In the garden many plants continue to come into bloom. This Erythranthe guttata is blooming through a Clarkia seedling.

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Our California native annual Eschscholzia caespitosa is looking great now. They all self-seed, so the display is different each season.

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Sisyrinchium bellum blooming with Ranunculus occidentalis hybrid. Our Ranunculus occidentalis hybrids bloom for many weeks during the spring. I like the combination with Sisyrinchium bellum. This all happens by chance as the Ranunculus self seeds around the garden.

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I have grown this Rhododendron atlanticum hybrid for decades. It grows about 1 meter tall and is extremely heat tolerant. Perfect for our Sacramento garden.

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The Pacific Coast Iris are coming into bloom.
Title: Re: April 2024 in the Northern Hemisphere
Post by: Robert on April 09, 2024, 05:54:09 PM
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The Pacific Coast Iris bloom abundantly. Here they are with a Lilium occidentale hybrid (lower right) that will bloom with intense deep orange-red flowers sometime next month.
Title: Re: April 2024 in the Northern Hemisphere
Post by: ashley on April 10, 2024, 04:39:42 PM
Beautiful irises and other plants Robert  8)  Thank you for sharing them.

A natural 'cloud pine'

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Title: Re: April 2024 in the Northern Hemisphere
Post by: Leena on April 10, 2024, 05:57:34 PM
Beautiful colourful garden, Robert.

Ashley, how interesting pine.

Here the snow melted away last week-end. It took only three warm days (+10C - +15C) and almost all the snow is gone. Only in very shady spots there is some left.
Warm weather also made crocuses come up and bloom, snowdrops are at their best now, hellebores are showing buds, and even corydalises are coming up. Everything is happening very fast now.
Helleborus niger 'Jacob' which came from the snow fully flowering. Snowdrop is 'S.Arnott'.

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Crocus heuffelianus

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Title: Re: April 2024 in the Northern Hemisphere
Post by: ashley on April 10, 2024, 06:27:53 PM
Helleborus niger 'Jacob' which came from the snow fully flowering.

Wonderful H. niger Leena, in a lovely setting.

The seedlings you very kindly sent me are coming along nicely but haven't reached flowering size yet.
Title: Re: April 2024 in the Northern Hemisphere
Post by: Leena on April 10, 2024, 06:58:10 PM
The seedlings you very kindly sent me are coming along nicely but haven't reached flowering size yet.

I like that 'Jacob' very much, but my H.niger from Holubeck seeds from Italy was even better. Sadly it died one winter, but here is a seedling from it, and this is two years older than seedlings I sent you. So hopefully yours look like this soon. :) Flowers are very big.

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Title: Re: April 2024 in the Northern Hemisphere
Post by: Robert on April 12, 2024, 05:32:26 PM

A natural 'cloud pine'

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Hi Ashley,

The pine in your photograph is amazing. The roots look like something from a Salvador Dali painting. Any idea how this occurred? It was hard to tell, but there appeared to be a great deal of erosion around the roots.

Did you actually see this tree and photograph it? Sorry, I had to ask. There is so much AI fake and maliciousness out there these days. So sad that some do not have anything better to do with their lives.   :'(
Title: Re: April 2024 in the Northern Hemisphere
Post by: kris on April 13, 2024, 04:58:16 AM
That is a beautiful Helleborous Leena. It is not hardy in Saskatoon. I had one for the last 8 years closer to the foundation of the house. Comes back every year sickly but never flowered.It is too cold here.
Title: Re: April 2024 in the Northern Hemisphere
Post by: ashley on April 13, 2024, 09:26:22 AM
The roots look like something from a Salvador Dali painting. Any idea how this occurred? It was hard to tell, but there appeared to be a great deal of erosion around the roots.

Did you actually see this tree and photograph it? Sorry, I had to ask. There is so much AI fake and maliciousness out there these days. So sad that some do not have anything better to do with their lives.   :'(

The pictures are indeed real Robert, but I understand your caution :)

Those aren't roots but dead branches now hanging downward.  Recently I came across this group of trees in a mountain valley SW of Fort William, Scotland.  They all looked mature, with no evidence of replacement by seedlings probably due to grazing pressure by red deer.  This particular tree had an enormous witches broom maybe 6-7m wide, which must have been old too given the slow growth rate.  Unfortunately the point of emergence from the trunk wasn't easy to see from my vantage point, but perhaps you can just about make it out from the photo below.  The broom also had small cones.

Witches brooms are apparently not uncommon in Pinus sylvestris (or other pines), and have given rise to various dwarf conifer cultivars, but this was the first time I'd seen one.  They can arise from bacterial or fungal infections but also from spontaneuos mutations in the meristem .  Therefore they tend to occur more often at higher altitudes where solar irradiation is more intense.  However this tree was only about 150m asl.

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Title: Re: April 2024 in the Northern Hemisphere
Post by: Redmires on April 15, 2024, 08:40:13 PM
Andre - belated thanks for the photo of your Ericaceous container. It's an appealing assembly of plants - they look nicely integrated. I confess I had no idea that there were such dwarf Rhododendron species - I've been slightly prejudiced against the genus as a result of spending time to eradicate the invasive species on various conservation projects. I'm very fond of upland species - and their habitat - but I've never tried to grow any of the specialists. The closest I've got is Myrica gale, which I couldn't resist when I saw it listed by Poyntzfield Herbs - the smell of the leaves is so evocative. I'm hoping to be able to provide it with some suitable but similarly tolerant company.

Ian - thanks also for pointing me to your photograph of P.caerulea  - it looks very at home in Scotland. Some local patch you had then!
Title: Re: April 2024 in the Northern Hemisphere
Post by: Gabriela on April 16, 2024, 12:57:13 AM
A natural 'cloud pine'

A very interesting and beautiful picture Ashley. The witches broom looks like a gigantic bonsai :)
Title: Re: April 2024 in the Northern Hemisphere
Post by: Gabriela on April 16, 2024, 01:00:13 AM
I like that 'Jacob' very much, but my H.niger from Holubeck seeds from Italy was even better. Sadly it died one winter, but here is a seedling from it, and this is two years older than seedlings I sent you. So hopefully yours look like this soon. :) Flowers are very big.

This one has indeed larger flowers Leena. I also have 'Jacob', but it never had so many flower stems like yours and actually is short lived; a new seedling takes its place every 2-3 years. I should probably find another location for it.
Title: Re: April 2024 in the Northern Hemisphere
Post by: Gabriela on April 16, 2024, 01:04:19 AM
We arrived at a stage in southern Ontario when many spring plants are in flower at once: Corydalis of various sorts, Helleborus, Primula and of course Hepatica to mention just the regulars.
I always have Erythronium dens-canis leaves but no flowers, so when one E. dens-canis blooms it is a big event!  :D
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Title: Re: April 2024 in the Northern Hemisphere
Post by: Mariette on April 16, 2024, 05:07:46 PM
This year, many plants flower 2-3 weeks earlier than last. Lilacs and bluebells flower 4 weeks earlier than in my youth.

Gabriela, I´m surprised that flowering in Your garden isn´t ahead of us. It´s nice to see all these colourful harbingers of spring in Your garden!

This one has indeed larger flowers Leena. I also have 'Jacob', but it never had so many flower stems like yours and actually is short lived; a new seedling takes its place every 2-3 years. I should probably find another location for it.

Helleborus niger isn´t an easy plant in many gardens, it´s great that it does so well for Leena and You!

Thanks to a kind forumist, Hyacinthoides paivae flowered here for the first time.  :)

(https://up.picr.de/47431700fh.jpg)

In some of our local woods, the bluebells are in full swing, yet another species of Hyacinthoides. This is a bracteate form.

(https://up.picr.de/47431698ee.jpg)

´Long Bracteate White´ is sold as H. non-scripta, but the circular arranged flowers make it look like a hybrid.

(https://up.picr.de/47431697kt.jpg)

Somehow I prefer the charm of bracteate forms of typical H. non-scripta.

(https://up.picr.de/47431696up.jpg)

The "pink" ones I found show a rather unattractive colour. In my opinion, the bright pink forms owe their colour to hybridisation, though they may look like true H. non-scripta.

(https://up.picr.de/47431699qz.jpg)
Title: Re: April 2024 in the Northern Hemisphere
Post by: Leena on April 16, 2024, 05:42:42 PM
I also have 'Jacob', but it never had so many flower stems like yours and actually is short lived; a new seedling takes its place every 2-3 years. I should probably find another location for it.

I have had 'Jacob' since 2011, and I don't think I have ever gotten seeds from it. Many times it starts to flower too early and flowers are damaged, but I'm glad not this year. Maybe because it hasn't had seeds, it is so long-lived here. With other H.niger, I have the same experience as Mariette, they are not easy to please, but they seed around so there is always some. Some H.niger I have are not as good-looking, with only a few flowers and also there are differences in leaves. Some have nicer leaves than others.
Kris, I'm sorry to hear yours don't do well. In Finland H.niger is considered to be hardier than H. x hybridus, but I think it also depends on the strain/type.
Title: Re: April 2024 in the Northern Hemisphere
Post by: Leena on April 16, 2024, 05:43:55 PM
Mariette, your Hyacinthoides are so pretty. I sowed H.non-scripta two years ago, so I will see them flowering hopefully in a few years time.
Title: Re: April 2024 in the Northern Hemisphere
Post by: MarcR on April 17, 2024, 04:55:40 AM
Gabriella and Leena,

I enjoyed the lovely blooms you both have posted :).

Here in Oregon, we are 3-4 weeks behind you.  The nature sculpted tree  was very interesting and strangely beautiful.

Thank you both for posting!
Title: Re: April 2024 in the Northern Hemisphere
Post by: Robert on April 17, 2024, 07:31:27 PM
The pictures are indeed real Robert, but I understand your caution :)

Those aren't roots but dead branches now hanging downward.  Recently I came across this group of trees in a mountain valley SW of Fort William, Scotland.  They all looked mature, with no evidence of replacement by seedlings probably due to grazing pressure by red deer.  This particular tree had an enormous witches broom maybe 6-7m wide, which must have been old too given the slow growth rate.  Unfortunately the point of emergence from the trunk wasn't easy to see from my vantage point, but perhaps you can just about make it out from the photo below.  The broom also had small cones.

Witches brooms are apparently not uncommon in Pinus sylvestris (or other pines), and have given rise to various dwarf conifer cultivars, but this was the first time I'd seen one.  They can arise from bacterial or fungal infections but also from spontaneuos mutations in the meristem .  Therefore they tend to occur more often at higher altitudes where solar irradiation is more intense.  However this tree was only about 150m asl.

(Attachment Link)

Ashley,

It is amazing that this Witch’s Broom developed in the “Floating Cloud” style naturally without any human intervention. Here in California, I do see Witch’s Brooms on pines from time-to-time. Most of them are not very attractive. I have never seen one with the “Floating Cloud” appearance.

It might be worthwhile if someone started propagation this Witch’s Broom?

Thank you for your patience with my questions and skepticism.
Title: Re: April 2024 in the Northern Hemisphere
Post by: Robert on April 17, 2024, 07:34:07 PM
Leena, Gabriela, and Mariette –

Thank you for the fantastic photographs from your gardens!

Here are some photographs from our Sacramento, California garden.

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Flowering Pac Choi with Papaver rhoeas and Sugar Snap Peas. Maybe only a farmer like me would find beauty and enjoy such a garden scene?

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So many of our California native annuals are looking great right now. They are perfect for our climatic conditions. Erythranthe bicolor is still in full bloom.

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Erythranthe guttata is blooming throughout our garden. Some I planted, some are self-sown. I am working on developing stronger longer-lived perennial forms of this species.

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Layia platyglossa is a must in our garden, and so easy-to-grow. It is so common, yet it is rarely seen in gardens in our area.

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This tub full of Layia gaillardioides has been blooming for some weeks now and still has many flowers coming on.
Title: Re: April 2024 in the Northern Hemisphere
Post by: Robert on April 17, 2024, 07:38:26 PM
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Diplacus kelloggii is new for me this year. It is a tiny species best grown in a container. It will be interesting to see how they develop over the years, especially as I add new accessions to the genetic mix.

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We have ongoing trials taking place with Diplacus aurantiacus. This species can bloom for months and is extremely drought tolerant. Many forms can be leggy growers, however we have some very compact forms that we are currently evaluating.

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Penstemon laetus var. laetus is very happy in our garden. They seed around here and there, especially in our cinder block garden. Wild plants exhibit considerable genetic variation. Most flowers are lavender-blue, however pink forms can be found. In addition, very compact forms exist that make outstanding garden plants.

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Huchera rubescens RMB 887 has proven to be a very adaptable selection of this species. I obtained seeds of this accession from the Rock Bound Pass region of the Sierra Nevada Mountains at an elevation of 8,963 feet. Currently I am conducting trials with this selection and other accessions from lower elevations in the Sierra Nevada Mountains both in containers and in the open garden. Some forms can bloom profusely and put on an outstanding flower show.

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Advanced generation white forms of Dipterostemon capitatus ssp. capitatus derived from Coastal forms of this species. I suspect that they have a different chromosome count than our local forms of this species, as the two forms do not easily cross with each other. Many different chromosome counts have been reported with this species.
Title: Re: April 2024 in the Northern Hemisphere
Post by: Robert on April 17, 2024, 07:40:16 PM
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A typical garden scene in our Sacramento garden, Dipterostemon capitatus ssp. capitatus with the California native annual Eschscholzia caespitosa. I see our garden as a blend of art with science.
Title: Re: April 2024 in the Northern Hemisphere
Post by: ian mcdonald on April 18, 2024, 05:09:06 PM
Ashley, it was interesting to see your photo of the growth on the pine tree. I have seen a similar one but can,t find the photo. I must have deleted it.
Title: Re: April 2024 in the Northern Hemisphere
Post by: Gabriela on April 18, 2024, 06:45:13 PM
I have had 'Jacob' since 2011, and I don't think I have ever gotten seeds from it. Many times it starts to flower too early and flowers are damaged, but I'm glad not this year. Maybe because it hasn't had seeds, it is so long-lived here. With other H.niger, I have the same experience as Mariette, they are not easy to please, but they seed around so there is always some. Some H.niger I have are not as good-looking, with only a few flowers and also there are differences in leaves. Some have nicer leaves than others.
Kris, I'm sorry to hear yours don't do well. In Finland H.niger is considered to be hardier than H. x hybridus, but I think it also depends on the strain/type.

I should have better said ex. 'Jacob' Leena because I grew it from seeds. Like you mention, it wants to flower too early, the picture I show is from March 13!!! Usually we have snow standing till April, and even worse, the location remains shaded until late spring.
In the pictures I've seen from the wild, it flowers beautifully on sunny slopes. I have a sloped area where the sun shines and the snow melts faster in the spring (sometimes too fast) and that's where I will move it.

I should add that in the same location, Helleborus purpurascens, which is a deciduous species, does well, although in other parts of the garden it flowers as early as the snow melts, here it holds on. Only recently the foliage appeared.  It is very hard with our limited garden space to offer proper spots for some species and it takes careful observing of the way the conditions of snow cover/sun/shade, moisture are changing over the seasons.
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Title: Re: April 2024 in the Northern Hemisphere
Post by: Gabriela on April 18, 2024, 06:54:10 PM
Robert - your garden is a riot of colors at this time! We can only hope for it later in the summer.

Mariette - the Hyacinthoides are lovely. I don't know why you would think my garden should be more advanced? Actually this year we have an early spring!
Primula sibthorpii is having a particularly good time this year; Corydalis malkensis to the left.

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Title: Re: April 2024 in the Northern Hemisphere
Post by: Leena on April 20, 2024, 09:52:37 AM
So floriferous in your garden Robert.

I should have better said ex. 'Jacob' Leena because I grew it from seeds.

I should add that in the same location, Helleborus purpurascens, which is a deciduous species, does well, although in other parts of the garden it flowers as early as the snow melts, here it holds on. Only recently the foliage appeared.  It is very hard with our limited garden space to offer proper spots for some species and it takes careful observing of the way the conditions of snow cover/sun/shade, moisture are changing over the seasons.

I got my 'Jacob' as Christmas flower, so it must have been micropropagated, and that is maybe why it doesn't produce seeds, not at least in my climate.
Helleborus purpurascens from your seeds is hardy here, too, and quite early like H.multifidus and H.odorus, while most H. x hybridus are later flowering in my garden. Only couple of yellow H. x hybridus seem to be earlier than others.
It is difficult to find good spots for each plant if when I have more space. Yesterday I moved (my husband helped me) big Darmera peltata to the edge of the garden to make space to more choice plants instead of Darmera which is so big. I can now plant there many smaller plants instead of one big one.

Weather seems to go up and down this spring. After a period of relatively warmer weather we are now again experiencing cold. The past two nights have been -5C and days barely over zero Celsius, and it won't get warmer until the end of next week. There was even a bit of snow last night, but luckily not as much as in easten Finland where they got 20cm more snow.
The first picture of Daphne mezereum is from April 16th.
 
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This picture is from today.

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'Jacob' and Corydalis solida today

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Helleborus multifidus, I guess there will be no seeds from this plant this year. It was so advanced in flowering and now it is so cold again.

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Title: Re: April 2024 in the Northern Hemisphere
Post by: ruweiss on April 21, 2024, 08:54:19 PM
Some shrubs:
Title: Re: April 2024 in the Northern Hemisphere
Post by: Mariette on April 24, 2024, 04:15:04 PM
Interesting shrubs, ruweiss! The scented lilacs are among my favourites!

Leena, I like the white daphne, it looks so much brighter than the ordinary one! The changes of weather may be similar here, though resulting in pics similar to Yours 2 months earlier.

Gabriela, I´m sorry - I changed by mistake Marc´s and Your location for a moment. Of course, zone 5 will be later than zone 7!

Robert, Your garden is as colourful as ours only may be in summer! We don´t know these strong, bright reds, blues and yellows here at this time of the year. Diplacus aurantiacus was a leggy plant for me, indeed, and I wasn´t sorry when it passed away. Erythranthe bicolor is very pretty.

In my garden, the tree peonies are in full swing, this is a hybrid between ´Gessekai´and ´Major Howel´.

(https://up.picr.de/47482710vf.jpg)

Paeonia rockii and its first generation hybrids succomb to the wet condtions here, but my seedlings of ´Gessekai´ pollinated with them do well on their own roots. This is another one from the same cross.

(https://up.picr.de/47482701bv.jpg)

Again a seedling of ´Gessekai´, this time crossed with a nameless white F 1 hybrid of P. rockii. Both the pollinators died.

(https://up.picr.de/47482709db.jpg)
Title: Re: April 2024 in the Northern Hemisphere
Post by: Mariette on April 24, 2024, 04:34:48 PM
Two more pics from our local bluebell woods.

(https://up.picr.de/47482702yl.jpg)

(https://up.picr.de/47482704yx.jpg)

 Lilies of the valley grow together with the bluebells in the wild, also here in the garden.

(https://up.picr.de/47482707gu.jpg)

An Arisaema triphyllum seedling grown from US-seed.

(https://up.picr.de/47482706zh.jpg)

A hybrid between Arum italicum and maculatum with spotted spathe.

(https://up.picr.de/47482711oa.jpg)



Title: Re: April 2024 in the Northern Hemisphere
Post by: Mike Ireland on April 25, 2024, 11:14:27 AM
Lewisia tweedyi alba from seed & Pleione growing outside in moss covered tray.
Title: Re: April 2024 in the Northern Hemisphere
Post by: Leena on April 25, 2024, 06:41:16 PM
Leena, I like the white daphne, it looks so much brighter than the ordinary one! The changes of weather may be similar here, though resulting in pics similar to Yours 2 months earlier.

It is also my favourite. We had now almost a week of cold, and today was finally +5. It is amazing how well most plants cope with cold periods, and Daphne is now like there was no cold spell at all.
Title: Re: April 2024 in the Northern Hemisphere
Post by: Mike Ireland on April 26, 2024, 05:38:07 PM
First Clematis hirsutissima in flower today, also Cassiope lycopodioides.
Title: Re: April 2024 in the Northern Hemisphere
Post by: Maggi Young on April 27, 2024, 06:31:55 PM
First Clematis hirsutissima in flower today, also Cassiope lycopodioides.
Very nice.   Is that Haberlea to the left of the Cassiope photo?
Title: Re: April 2024 in the Northern Hemisphere
Post by: Mike Ireland on April 28, 2024, 10:33:56 AM
Yes it is Maggie, it has been in the same large pot for about 35 years. As you can see its about twice the size of the pot.
Title: Re: April 2024 in the Northern Hemisphere
Post by: Andre Schuiteman on April 28, 2024, 12:53:30 PM
Ericaceae are loving the cool, wet spring weather here (near London).
[attachimg=1]
A dwarf form of Kalmia buxifolia, better known as Leiophyllum buxifolium.
[attachimg=2]
The moonlight-coloured Rhododendron sargentianum.
Title: Re: April 2024 in the Northern Hemisphere
Post by: Robert on April 28, 2024, 04:30:43 PM
[attachimg=1]

Some scenes from our Sacramento, California garden.

This tub full of Layia gaillardioides has been blooming for many weeks now.

[attachimg=2]

Erythranthe bicolor RMB 1017 has also been blooming for many weeks now. I am getting a great deal of genetic variability with this accession. Some plants produce flowers abundantly.  Some are upright in their growth habit, a characteristic I have observed in other accessions. It will be enjoyable selecting and working with these plants into the future.

[attachimg=3]

DIplacus kelloggii RMB 1053 is another new accession. I found Erythranthe bicolor RMB 1017 and Diplacus kelloggii RMB 1053 growing in the same location in close association with each other. They both bloom at the same time and combined attractively with each other in their natural rock garden setting. I will see if I can duplicate this in our Sacramento garden.

[attachimg=4]

Twining Brodiaea, Dichelostemma volubile, is a common, widespread species in the lower elevations of California. The vining flowering stems travel around, with flowers appearing in surprising locations throughout the garden.

[attachimg=5]

Allium unifolium – It is difficult to improve upon this beautiful, easy-to-grow species. There are many local species of Allium to work with in our part of Northern California. Working with the other Allium species will keep me busy for many years.
Title: Re: April 2024 in the Northern Hemisphere
Post by: Robert on April 28, 2024, 04:33:42 PM
[attachimg=1]

Calochortus luteus is coming into bloom now. It is a fine species. The next generation of plants and hybrids will likely bloom next year. This species is highly variable, so there are many possibilities with this species.

[attachimg=2]

Erythranthe guttata is a short-lived perennial species. I am working on developing a line of plants that are strongly perennial, and bloom profusely. Profusely blooming plants is easy, developing plants that will reliably live for more than 2 to 3 years is proving to be challenging.

[attachimg=3]

My primary goal is to create plants that are practical garden plants. Triteleia ixioides ssp. scabra and Erythranthe guttata preform extremely well in a garden setting.

[attachimg=4]

Diplacus pictus and Erthranthe guttata are thriving in our garden.

[attachimg=5]

Triteleia hyacinthina and Iris hartwegii ssp. hartwegii are also thriving in our garden.
Title: Re: April 2024 in the Northern Hemisphere
Post by: Maggi Young on April 28, 2024, 04:43:51 PM
Yes it is Maggie, it has been in the same large pot for about 35 years. As you can see its about twice the size of the pot.
good grief! That's a big one - doesn't seem to mind being potbound, does it - and it surely is at that size!!
Title: Re: April 2024 in the Northern Hemisphere
Post by: Mike Ireland on April 28, 2024, 08:47:58 PM
Cassiope wardii
Dicentra cuccularia
Still cool & damp so the plants are lasting in flower for so much longer.
Title: Re: April 2024 in the Northern Hemisphere
Post by: Gabriela on April 29, 2024, 11:42:15 PM
good grief! That's a big one - doesn't seem to mind being potbound, does it - and it surely is at that size!!

Yes, truly impressive those containers, both the Cassiope and the Haberlea!
Title: Re: April 2024 in the Northern Hemisphere
Post by: Gabriela on April 29, 2024, 11:51:40 PM

Calochortus luteus is coming into bloom now. It is a fine species. The next generation of plants and hybrids will likely bloom next year. This species is highly variable, so there are many possibilities with this species.

I find all Calochortus very attractive Robert, unfortunately I never managed to keep the seedlings I started from seeds, no matter the species.
On the other hand I can grow Erythranthe guttata :) with no problem. Like you say it flowers profusely, so I don't mind it is short lived. Here it acts as an annual or if the winter is mild, like a short lived perennial.

From cold we jumped directly to warm weather, actually a bit too warm. It is the stage when Corydalis malkensis and solida start to fade to make space for the next wave, Lathyrus, Primulas and also  Epimediums are starting to flower.
[attachimg=1]
I took this picture to remember that this red C. solida is fragrant; usually the purple ones are fragrant.
[attachimg=2]
Pulsatilla ex. styriaca pink with its usual second wave of flowers.
[attachimg=3]
Epimedium hybrid
[attachimg=4]
Title: Re: April 2024 in the Northern Hemisphere
Post by: Robert on April 30, 2024, 05:03:39 PM
Hi Gabriela,

Thank you for the information regarding the performance of Erythranthe guttata in your Ontario garden. I find such information useful for some of my projects. Here in our part of California, Erythranthe guttata appears to respond, to a certain extent, to the number of snow cover days each season. The species is quite common in the Sierra Nevada Mountains up to ~ 4,000 feet elevation. To date, I have never recorded this species above ~ 5,000 feet elevation. The number of snow cover days climbs quickly between the 4 k and 5 k feet elevation levels. I am sure that there are other factors involved. There is plenty for me to consider.

As usual, your garden is looking very beautiful.  8)  The mix of plant species is very different from our selection here in California. I enjoy seeing different plant species, especially used very effectively and beautifully. Even if I could grow some of the species here in our part of California, there are practical limits to the number of plant species I can grow. In general, I just try to do the best I can with the plants that are close at hand. This includes Calochortus. For the most part they grow very well here in our part of California.
Title: Re: April 2024 in the Northern Hemisphere
Post by: ruweiss on May 06, 2024, 09:23:49 PM
Some photos from last month:
Title: Re: April 2024 in the Northern Hemisphere
Post by: Gabriela on May 09, 2024, 01:15:56 AM
Some photos from last month:

Your Haberlea is looking very happy Rudi. I know is a tough plant but somehow I have a very small division that refuses to grow (not to mention I already lost another small plant I purchased two years ago). It is planted in the ground so this may be the problem?
I notice your plants grow among tufa blocks.

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