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General Subjects => Alpines => Topic started by: Herman Mylemans on February 12, 2021, 11:36:18 AM

Title: Gentiana 2021
Post by: Herman Mylemans on February 12, 2021, 11:36:18 AM
I have found some interesting movies about Asiatic Gentians.
They are from Tromsø Arctic-Alpine Botanic Garden.

Gentiana x stevenagensis:
 
https://www.youtube.com/watch?v=GYGpykZO7e8&t=4s


Gentiana ternifolia:

https://www.youtube.com/watch?v=KiC-q_ptomE


Gentiana oreocharis:

https://www.youtube.com/watch?v=8nURFwmDTNc



Gentiana x macaulayi:

https://www.youtube.com/watch?v=V-GfsdaP77s


Gentiana:

https://www.youtube.com/watch?v=hBuzusJFYgA
Title: Re: Gentiana 2021
Post by: Gail on February 12, 2021, 01:00:54 PM
Thanks Herman, the Gentiana ternifolia was good fun, and now I am going to have to find a plant...
Title: Re: Gentiana 2021
Post by: Herman Mylemans on February 12, 2021, 01:32:26 PM
Thanks Herman, the Gentiana ternifolia was good fun, and now I am going to have to find a plant...
Gail, I was in that garden in 2015. Now seeing this movies, there is a desire to go back to Norway. But traveling is not allowed in Belgium because of corona.
Title: Re: Gentiana 2021
Post by: Maggi Young on February 12, 2021, 01:40:42 PM
Quite a few mentions of Gentiana ternifolia to read about  on back issues of  The  Rock Garden - all available on the SRGC Website!

......— ternifolia : 71/186; 79/134; 82/94; 84/276; 97/334,
342*, 343; 112/92; 118/85
— — ʽCangshan’ : 84/276; 97/342
— — ʽDali’ : 84/273C, 277; 97/342
Title: Re: Gentiana 2021
Post by: Gabriela on February 13, 2021, 04:31:49 PM
Thanks Herman. Fantastic videos with these Himalayan Gentians.
They look amazing even with ice crystals!
Title: Re: Gentiana 2021
Post by: Roma on May 02, 2021, 02:28:18 PM
Gentiana acaulis

[attachimg=1]
Title: Re: Gentiana 2021
Post by: Herman Mylemans on May 02, 2021, 04:08:56 PM
It is a good year for Gentiana:

Gentiana acaulis

Gentiana acaulis 'Alba'

Gentiana acaulis 'Rannoch'

Gentiana angustifolia
Title: Re: Gentiana 2021
Post by: Herman Mylemans on May 02, 2021, 04:17:24 PM
Gentiana clusii var. clusii

Gentiana dinarica

Gentiana pumila ssp. delphinensis
Title: Re: Gentiana 2021
Post by: Gabriela on May 03, 2021, 11:30:55 PM
So many Gentians with you already Herman! I'm surprised that even G. angustifolia is in flower.
I never managed to keep G. acaulis because of the substrate requirements but it seems that I may be successful with G. clusii.
G. clusii a violet form, grown from seeds :)
[attachimg=1]
Title: Re: Gentiana 2021
Post by: Herman Mylemans on May 04, 2021, 01:24:10 PM
So many Gentians with you already Herman! I'm surprised that even G. angustifolia is in flower.
I never managed to keep G. acaulis because of the substrate requirements but it seems that I may be successful with G. clusii.
G. clusii a violet form, grown from seeds :)
(Attachment Link)
Gabriela, they like nutritious loamy soil. Angustifolia also loves some lime.
Title: Re: Gentiana 2021
Post by: Gabriela on May 04, 2021, 09:03:10 PM
Gabriela, they like nutritious loamy soil. Angustifolia also loves some lime.

Yes, I know Herman. G. clusii and G. angustifolia are good for calcareous substrates. On the other hand, G. acaulis only grows in the wild on silicaceous substrates in the wild, reason why it is more difficult to accommodate in culture.

In this light, you may want to have a closer look at your labels. It is very unfortunate that plants are sold with wrong names. I personally enjoy them regardless, but it is always good to double check the names.
G. clusii lacks the green spots inside the corolla (reason why I posted a close-up, hoping that people will observe).
G. acaulis, is a stemless species; likely that the ones you show are G. angustifolia or hybrids, with the exception of the white one.
Title: Re: Gentiana 2021
Post by: Herman Mylemans on May 05, 2021, 07:41:14 AM
Yes, I know Herman. G. clusii and G. angustifolia are good for calcareous substrates. On the other hand, G. acaulis only grows in the wild on silicaceous substrates in the wild, reason why it is more difficult to accommodate in culture.

In this light, you may want to have a closer look at your labels. It is very unfortunate that plants are sold with wrong names. I personally enjoy them regardless, but it is always good to double check the names.
G. clusii lacks the green spots inside the corolla (reason why I posted a close-up, hoping that people will observe).
G. acaulis, is a stemless species; likely that the ones you show are G. angustifolia or hybrids, with the exception of the white one.
Gabriela, there are indeed a lot of misnamed Gentiana. G. angustifolia has the right characteristics: the old leaves are long and very narrow. The bell and chalice also have the correct shape.

[attachimg=1]

[attachimg=2]
Title: Re: Gentiana 2021
Post by: Herman Mylemans on May 06, 2021, 11:36:56 AM
Gentiana angustifolia
Title: Re: Gentiana 2021
Post by: Carolyn on May 06, 2021, 12:49:09 PM
Hmmm... so how do you distinguish between G acaulis said and angustifolia? Acaulis does have a flower stem, doesn’t it - short, but a stem all the same?
Title: Re: Gentiana 2021
Post by: Herman Mylemans on May 06, 2021, 02:16:11 PM
Hmmm... so how do you distinguish between G acaulis said and angustifolia? Acaulis does have a flower stem, doesn’t it - short, but a stem all the same?
Carolyn, the name, Gentiana acaulis (stemless gentian) is used in 2 ways: on the one hand as a group and on the other as a species.
You can see it here: http://www.gentians.be/index.php?page=articles&art=9

[attachimg=1]

You can see that the real Gentiana acaulis (as species) has broad old leaves, also look at the shape of the chalice and teeth. You see a white membrane between the teeth.
Title: Re: Gentiana 2021
Post by: Carolyn on May 06, 2021, 03:22:25 PM
Herman,
Thanks for the link, I had forgotten about your super website, which I now remember looking at ages ago. Very useful!
Title: Re: Gentiana 2021
Post by: Gabriela on May 08, 2021, 01:54:44 PM
Gabriela, there are indeed a lot of misnamed Gentiana. G. angustifolia has the right characteristics: the old leaves are long and very narrow. The bell and chalice also have the correct shape.

Yes Herman, the G. angustifolia shown by you are true, I was talking about the first pictures with G. acaulis and G. clusii (also not true because it shows green spots).

The last picture you posted with G. acaulis is true to species.
There is a Gentiana acaulis group but when those individual species are showed they shouldn't be named 'G. acaulis'.
Title: Re: Gentiana 2021
Post by: Roma on May 21, 2021, 02:34:52 PM
Gentiana acaulis

[attachimg=1]

Gentiana angustifolia

[attachimg=2]

This Gentian was one of a few grown as 'New Hybrids' from exchange seed.  It is a bit different with compact foliage and short fat trumpets.

[attachimg=3]
Title: Re: Gentiana 2021
Post by: Leucogenes on May 21, 2021, 03:21:52 PM
Gentiana ligustica from the Ligurian Alps in NW Italy (1600 metres)
Title: Re: Gentiana 2021
Post by: Leucogenes on May 22, 2021, 08:27:21 AM
Now the flowers of Gentiana verna ssp. balcanica appear sporadically among the stones...
Title: Re: Gentiana 2021
Post by: Herman Mylemans on May 22, 2021, 08:57:36 AM
Thomas and Roma, nice Gentiana!
Title: Re: Gentiana 2021
Post by: ruweiss on May 23, 2021, 09:19:13 PM
Thanks to the photographers of these beautiful gentians.
In June 2010 we found Gentiana ligustica at Mte. Sacarello in the Ligurian Alps.
Title: Re: Gentiana 2021
Post by: Herman Mylemans on May 24, 2021, 09:53:59 AM
Thanks to the photographers of these beautiful gentians.
In June 2010 we found Gentiana ligustica at Mte. Sacarello in the Ligurian Alps.
Thomas, nice treasure!
Title: Re: Gentiana 2021
Post by: Leucogenes on May 24, 2021, 11:38:56 AM
Thomas, nice treasure!

Herman...the two fantastic photos were shown by Rudi. But I would have liked to be at Rudi's side at the time of the shoot...;-)
Title: Re: Gentiana 2021
Post by: Herman Mylemans on May 24, 2021, 12:48:34 PM
Indeed Thomas! I was too fast.
Rudi, nice treasure!
Title: Re: Gentiana 2021
Post by: ruweiss on May 24, 2021, 09:01:50 PM
Thank you, Thomas and Herman
Title: Re: Gentiana 2021
Post by: Herman Mylemans on June 22, 2021, 11:10:15 AM
Gentiana lutea (planted in 2007)
Title: Re: Gentiana 2021
Post by: Herman Mylemans on June 22, 2021, 11:12:39 AM
Gentiana lutea ssp. lutea, sown in 2011 (Jurasek garden seeds)
Title: Re: Gentiana 2021
Post by: Herman Mylemans on June 22, 2021, 11:15:04 AM
Gentiana straminea, sown in 2018 (Euroseeds, S.-E. Quinghai, China, 4300m).
Title: Re: Gentiana 2021
Post by: Gabriela on June 28, 2021, 08:46:35 PM
Gentiana lutea

The G. lutea flowering looks fantastic Herman. I am waiting patiently for few of my seedlings to reach flowering age. They are so difficult from seeds! but worth the wait, and I wouldn't find to buy it anyway.

Here's my young one :) maybe 4, or 5 years. I made the mistake to move it two years ago and it took a step back.
[attachimg=1]
Title: Re: Gentiana 2021
Post by: Herman Mylemans on June 29, 2021, 09:37:53 AM
The G. lutea flowering looks fantastic Herman. I am waiting patiently for few of my seedlings to reach flowering age. They are so difficult from seeds! but worth the wait, and I wouldn't find to buy it anyway.

Here's my young one :) maybe 4, or 5 years. I made the mistake to move it two years ago and it took a step back.

Thank you Gabriela, it has taken many years to get flowering plants in the garden.
Gabriela, they indeed don't like to be moved. G. lutea produces a lot of seeds that germinate well but it is a long way till flowering time. Many of the seedlings do not reach that flowering time, even after several years in the garden they can suddenly disappear. Once established they can live a long time, my oldest one is already 14 years in the garden.
Title: Re: Gentiana 2021
Post by: Gabriela on June 29, 2021, 07:41:58 PM
Thank you Gabriela, it has taken many years to get flowering plants in the garden.
Gabriela, they indeed don't like to be moved. G. lutea produces a lot of seeds that germinate well but it is a long way till flowering time. Many of the seedlings do not reach that flowering time, even after several years in the garden they can suddenly disappear. Once established they can live a long time, my oldest one is already 14 years in the garden.

Thanks Herman, I know they form a taproot Herman but sometimes my actions in the garden are faster than my line of thought!
The foliage is very beautiful even if not flowering, I always admire their statuesque aspect on the mountain meadows.
Even from fresh seeds I always obtained poor germination (when not using GA3), maybe you had more luck in this regard.
Title: Re: Gentiana 2021
Post by: ruweiss on August 11, 2021, 09:07:21 PM
A white seedling of Gentiana angustifolia "Iceberg Strain". The sister seedlings were in all shades
of blue. These plants are easy to cultivate and quite tolerant to drier and sunnier conditions.
Title: Re: Gentiana 2021
Post by: Herman Mylemans on August 12, 2021, 02:11:55 PM
Gentiana paradoxa from Caucasus.
Title: Re: Gentiana 2021
Post by: Herman Mylemans on August 12, 2021, 02:14:25 PM
Gentiana x macaulayi ‘Kingfisher’ loves the wet weather from the last few weeks and is spreading around. Now waiting till the flowers come.
Title: Re: Gentiana 2021
Post by: ruweiss on August 15, 2021, 07:46:58 PM
Herman, your Kingfisher looks very promising, this plant must explode in some time.
The true Gentiana paradoxa became rather rare in cultivation, most of the plants in
the nursery trade are hybrids.
Thank you for showing.
The Gentiana in the picture is the plant with the biggest flowers in my collection.
It is a seedling of unknown parentage from Vladimir Kalous from Czech Republic.
Title: Re: Gentiana 2021
Post by: Gabriela on August 15, 2021, 09:50:22 PM
Wonderful Gentiana Herman and Rudi.

The Kingfisher size is surreal! and I like that stone ball :)

Rudi: your Gentiana could be G. clusii, with a bit of late flowering than usual.

My Gentiana paradoxa (which always starts flowering when G. septemfida ends).

The first pictures: a mix of G. paradoxa and hybrids, grown from G. paradoxa seeds of garden origin. If given the chance there is always cross pollination. I planted the whole seedlings pot in one place and it would hard to separate them now.
[attachimg=1]

[attachimg=2]

Then, Gentiana paradoxa grown from wild coll. seeds (the first flowering).
[attachimg=3]

[attachimg=4]
Title: Re: Gentiana 2021
Post by: Herman Mylemans on August 16, 2021, 09:36:33 AM
Herman, your Kingfisher looks very promising, this plant must explode in some time.
The true Gentiana paradoxa became rather rare in cultivation, most of the plants in
the nursery trade are hybrids.
Thank you for showing.
The Gentiana in the picture is the plant with the biggest flowers in my collection.
It is a seedling of unknown parentage from Vladimir Kalous from Czech Republic.
Rudi, to me it looks more angustifolia. The leaves seems to be narrow, but they can change if the plants are still young. To much green in the corolla and wrong calyx teeth to be clusii. Clusii don't make runners. If the seeds came from a garden with different gentians it can be a hybrid.
Title: Re: Gentiana 2021
Post by: Herman Mylemans on August 16, 2021, 09:59:23 AM
Wonderful Gentiana Herman and Rudi.

The Kingfisher size is surreal! and I like that stone ball :)

Rudi: your Gentiana could be G. clusii, with a bit of late flowering than usual.

My Gentiana paradoxa (which always starts flowering when G. septemfida ends).

The first pictures: a mix of G. paradoxa and hybrids, grown from G. paradoxa seeds of garden origin. If given the chance there is always cross pollination. I planted the whole seedlings pot in one place and it would hard to separate them now.

Then, Gentiana paradoxa grown from wild coll. seeds (the first flowering).

Gabriela, the leaves from your Gentiana paradoxa from wild seeds are indeed much narrower than those of the hybrid forms. But the hybrids are also beautiful.
Kingfisher likes humid weather!
Title: Re: Gentiana 2021
Post by: ruweiss on August 17, 2021, 08:51:29 PM
Gabriela and Herman, thank you for your always interesting photos and comments.
The big flowered Gentiana always reminds me of the interesting meetings with Czech
and other European rockgardeners in the autumn in Eastern Czech Republic.
Vladimir Kalous always had an interesting amount of rare dwarf conifers in his car
plus a lot of flowering gentians in all shades from white to dark blue but without
any labels and I still regret,that i didn't buy more of them.
Title: Re: Gentiana 2021
Post by: Gabriela on August 18, 2021, 01:41:46 AM
Gabriela, the leaves from your Gentiana paradoxa from wild seeds are indeed much narrower than those of the hybrid forms. But the hybrids are also beautiful.
Kingfisher likes humid weather!

All the pictures I've seen with G. paradoxa in wild habitat show the same very narrow leaves Herman.
At the moment I am happy with any Gentiana which does well in our climate; the hot & humid of our summers it's not tolerated by many species.
Title: Re: Gentiana 2021
Post by: Gabriela on August 18, 2021, 01:44:25 AM
Gabriela and Herman, thank you for your always interesting photos and comments.
The big flowered Gentiana always reminds me of the interesting meetings with Czech
and other European rockgardeners in the autumn in Eastern Czech Republic.
Vladimir Kalous always had an interesting amount of rare dwarf conifers in his car
plus a lot of flowering gentians in all shades from white to dark blue but without
any labels and I still regret,that i didn't buy more of them.

Rare dwarf conifers and gentians of all colors sounds like a wonderful combination Rudi! I can easily imagine the look of his car :)
Title: Re: Gentiana 2021
Post by: ruweiss on August 18, 2021, 09:16:02 PM
Simply irresistible, this meeting was always a highlight of our gardening year. Meeting old and new gardening friends,
excellent lectures, good local food and drinks and a very good offer of plants were worth the 550 Kilometers drive.
Nobody thought, that a virus could stop this all.
Title: Re: Gentiana 2021
Post by: Ophrys on August 22, 2021, 09:10:12 AM
Thank you, Herman! Very interesting videos!
Title: Re: Gentiana 2021
Post by: Herman Mylemans on October 09, 2021, 12:46:10 PM
Gentiana x macaulayi ‘Kingfisher’ is enjoying the sun

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