Scottish Rock Garden Club Forum
Specific Families and Genera => Rhododendron and other Ericaceae => Topic started by: johnw on January 05, 2020, 02:57:47 PM
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Disastrous news out of Australia as shared by David Millais this morning.
https://rhodogarden.org.au/projects/blue-mountains-mega-fire-blazes-the-campbell-rhododendron-gardens/?fbclid=IwAR2zjLnPDZNeJN1g40gu43qF9WRcQgVB1VpzIpVAYOlvSranugtxiH3Bg8E
johnw
halifax, ns
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The news reports from the Australian fires are terrifying. So much loss of life, habitat and wholesale destruction of wildlife. Appalling - and no end in sight.
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My potted Rhododendron praecox has been beautiful for the past couple of years but this year a great disappointment as you will see from the first picture. Unfortunately I don't have a picture of it from 2019 (all my 2019 pictures were lost in moving to Windows 10 and a new laptop) and the 2018 picture shows it not at it's best. (second picture)
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Rhododendrons coming early this year. My Ciliatum flowered from the end of January and is still in flower thanks to no frosts! Snow lady opened up on the 28 February and hopefully will survive some slight frost. So far Edgeworthii has produced large buds and at this rate will open in about 3 weeks...if weather holds.
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Rhododendrons coming early this year. My Ciliatum flowered from the end of January and is still in flower thanks to no frosts! Snow lady opened up on the 28 February and hopefully will survive some slight frost. So far Edgeworthii has produced large buds and at this rate will open in about 3 weeks...if weather holds.
A lovely lady, without snow! Wasn't expecting to hear from you today, Tom- I thought you'd be too busy eating birthday cake!! Many happy returns of the day!!
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Actually we went to Loch Katrine to see some snow on the mountains and had lunch at the small bistro on Stronachlachar pier.
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Amazing what you'll find when you look under the greenhouse bench! R. spinuliferum. Last year - its first flowering - the colour was wretched (pic 2) so I am quite chuffed.
I wonder if I dare put its pollen on my cross of (mucronulatum 'Cheju' x spinuliferum Starling's black-red) or am I apt to lose hardiness, spin is very tender outdoors even in mild areas in the UK I hear.
john
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Amazing what you'll find when you look under the greenhouse bench! R. spinuliferum. Last year - its first flowering - the colour was wretched (pic 2) so I am quite chuffed.
I wonder if I dare put its pollen on my cross of (mucronulatum 'Cheju' x spinuliferum Starling's black-red) or am I apt to lose hardiness, spin is very tender outdoors even in mild areas in the UK I hear.
john
Certainly non too hardy here in Aberdeen, John.
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I've grown a lot of rhododendrons from seed, but this one wins the prize for the length of time it took to finally flower. MECC seed sown in 1999, flowering in 2020. Rhododendron barbata
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The Scottish National Rhododendron show to be held at Garelochead, Saturday, 2nd May 2020 is cancelled, along with the tours on the Sunday.
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I wandered round the garden after feeding the ponies and before I came in for the evening. I spotted all is not well with Rhododendron 'Snow Lady'. We had -1.2 C last night and -3.7 the night before :'( . We've been having cold westerly winds for a long time but the wind is now coming from the east and is even colder . Another week of above freezing nights and she would have been magnificent.
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Rh.Pekamoense opened about a week ago.
Something has gone wrong in posting a picture. I have done exactly what I normally do but the picture will not transfer to the post. Ideas?
I tried again for the 10th time and now it worked!!
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Thank you for persevering, TC! Internet rather unpredictable right now with so many extra people using it!
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Cassiope 'Edinburgh', becoming buried by Daphne 'Spring Sonnet'
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Rhododendron 'Ginny Gee'
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I'm not sure what the second one is?
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I'm not sure what the second one is?
Looks like 'Curlew' a reliable plant which flowers several times a year here in Aberdeen!
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Looks like 'Curlew' a reliable plant which flowers several times a year here in Aberdeen!
A little beauty David !
This hybrid is a tad bigger :) It's an old hybrid named Rhododendron 'Gartendirektor Rieger' - an early and reliable flowerer but always in danger of nightfrosts.
This year, he escaped the frosts by 2 or 3 days. The reward is shown.
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Rhododendron 'Gartendirektor Rieger' is making a superb display for you, Luc!
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A little beauty David !
This hybrid is a tad bigger :) It's an old hybrid named Rhododendron 'Gartendirektor Rieger' - an early and reliable flowerer but always in danger of nightfrosts.
This year, he escaped the frosts by 2 or 3 days. The reward is shown.
A treasure Luc! The Danes tell me it's easy to root and more importantly you can graft Taliensia spp. as well as yellows on it without rejection. johnw
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Looks like 'Curlew' a reliable plant which flowers several times a year here in Aberdeen!
Cheers Maggi.
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Thanks Maggi & John, it really is an asset for the garden. I think it's been there for over 15 years and it's 2 m high and abt 2.5 m wide - when in full flower, it's hard to see any leaves at all. As I wrote, as it's quite early, it is quite vulnarable to night frost. One night at -1°C and you have black flowers after a few hours.
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That sure is some plant Luc.
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Not the sort of day to get good colour pictures.
Rhododendron 'Gartendirector Glocker'
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Rhododendron 'Winsome'
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Rhododendron augustinii
I keep thinking I should remove it as the flowers always get frosted. This year some flowers on the west side have escaped. It is such a lovely blue when it does manage to open some flowers.
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Can anyone tell me about this rhody, 'Chief Joseph'? I bought it at the Washington Park Arboretum in 2009. It languished in a small pot for several years until I finally planted it out. So far, it has stayed small. I haven't found any information on the internet.
Thanks!
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Can anyone tell me about this rhody, 'Chief Joseph'? I bought it at the Washington Park Arboretum in 2009. It languished in a small pot for several years until I finally planted it out. So far, it has stayed small. I haven't found any information on the internet. Thanks! (Attachment Link)
Claire - It's a hybrid by Joesph Witt of Seattle, just down the road from you. The parentage is (dichroanthum ssp. scyphocalyx x ('Rubina'' x'Fabia'). Rated at medium height so under 2m. Witt was obviously trying to produce an orange or salmon.
john
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Thanks so much for the information. I never met Joseph Witt but knew his wife Jean very well.
It may have to move if it tops out at 2 meters.
...Claire
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Rhododendron augustinii
I keep thinking I should remove it as the flowers always get frosted. This year some flowers on the west side have escaped. It is such a lovely blue when it does manage to open some flowers.
(Attachment Link)
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Roma, I would be very careful with trying to move an augustinii. I tried it with one of mine and it snapped off halfway down the stem. The wood is not supple and does not like being bent, as I found out to my cost.
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Tom, when I said remove I meant dispose of rather than move to another location ;D I am enjoying the flowers on the NW quarter of the bush so it's safe for another year, probably much longer. I had to prune it drastically in 2011 after the severe winter so I think it would probably survive being cut back by half if necessary.
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Rhododendron concinnum. This was a raffle win a couple of years ago at one of our AGS Local Group meetings (I like plants that don't mean my spending any money ;D ). It was probably provided by Barry Starling.
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Looks like 'Curlew' a reliable plant which flowers several times a year here in Aberdeen!
Just got a feeling that it might be 'Wren'?
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David - It indeed looks like Wren. Here are two shots of mine. john
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Yup, I think you're right it's 'Wren' - wrong spy on my behalf - my 'Curlew' are out fully now and I see the colour is different now I have actual flowers to compare.
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Azalea's at their top - Rhodo's following...
Azalea Mollis (or is it Rhododendron now ???)
39 year old is this diry red Azalea (I believe it may be A. japonica)
3 in a row
Rhododendron 'Percy Wiseman' a favourite with mixed colours as buds are opening.
Rhododendron Chicor - Also over 30 years old but had to be cut back to the ground 7 or 8 years ago after having been frozen.
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Many thanks Maggi and John
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From the garden of Jens C. Birck in Copenhagen again, his cross of 'Goldprinz' x rex is in full flower today. Nicely proportioned, colour not brash and not one of those over-the-top western North American hybrids. Hopefully Holger Hachmann will get this beauty into production
John
Halifax, Nova Scotia
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From Jim Jermyn at Branklyn,
"This heavily scented Rhododendron was a Ludlow and Sherriff collection. Trained against a wall! Rhododendron lindleyi
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Does anyone knows what the spots on the leaves are? Is there any way to fix this?
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Does anyone knows what the spots on the leaves are? Is there any way to fix this?
I think they may benefit from a feed of a special ericaceous feed, Herman, but it may be that they are suffering from Powdery Mildew - you may need to research more on their state.
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Good to see John Good, in Wales, writing about his choice of smaller rhododendrons for the garden in his AGS diary - https://www.alpinegardensociety.net/plants/rhododendron-choices-for-small-gardens/?fbclid=IwAR1OUb6oqU2ncWbEuB-Gk1QQHOPh-IdIPlMPG2ZpWyTIiyYegs4nbX4z0jc (https://www.alpinegardensociety.net/plants/rhododendron-choices-for-small-gardens/?fbclid=IwAR1OUb6oqU2ncWbEuB-Gk1QQHOPh-IdIPlMPG2ZpWyTIiyYegs4nbX4z0jc)
This entry is about John's selection of possibilities - from what could be a very long list! He intends writing ina later diary about their cultivation.
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Rhododendron oreotrephes getting rather big. I did cut it down fairly hard a few years ago. Maybe it's time to do it again.
May 5th
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May 10th
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May 18th
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May 23rd
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All of our garden beds are less than 10 years old, and most just in place for the past 5 years. That hasn't prevented some of our newer rhododendrons from putting on a good display, in spite of their small size. Rhododendron 'Big Deal', 'Gunborg, and 'Hachmann's Picobello' are looking pretty good. Gunborg has held its colour well, over the past two weeks, in spite of being in full sun. None of the plants are over 50 cm high yet. Definitely looking forward to what they do in the next five years!
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All nice, but the last one is a ‘stormer’
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Thanks, David. Picobello was love at first sight (from a photo), even though we didn't know how bud hardy it would be. First year in bloom (got it as a very small plant from the Atlantic Rhododendron and Horticultural Society. It tends to put on a second flush of growth for us, late in the season- the reason for the burnt leaf in the photo. Late growth just doesn't have enough time to harden off here, before the onset of winter.
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I bought a Rhod. at the Scottish Rhododendron society show Garelochhead about 5 years ago. It was a layered cutting from choice "cinnabarinum" from an Argyll garden. I planted it and kept it going looking for signs of a flower. Despite watching it, it produced one flower this year and I only saw it when it was going over. I took one poor picture when the wind was whipping it about and tried to identify it. I couldn't. It was about 3cms long and open bell shaped, not like the tubular cinnabarinum type. The plant itself grows about 30cms.a year with an upright growth like an Augustinii. Any ideas as to its name?
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Last of my Rhododendrons to flower is Rhododendron 'Lava Flow'. It has just gone over and now Rhododendron orthocladum microleucum is producing its autumn flowers. It flowered better last autumn than it did this spring when we had occasional frosts interspersed with long spells of hot dry weather.
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