Scottish Rock Garden Club Forum
General Subjects => Alpines => Topic started by: Herman Mylemans on February 12, 2021, 11:36:18 AM
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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
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Thanks Herman, the Gentiana ternifolia was good fun, and now I am going to have to find a plant...
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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.
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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
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Thanks Herman. Fantastic videos with these Himalayan Gentians.
They look amazing even with ice crystals!
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Gentiana acaulis
[attachimg=1]
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It is a good year for Gentiana:
Gentiana acaulis
Gentiana acaulis 'Alba'
Gentiana acaulis 'Rannoch'
Gentiana angustifolia
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Gentiana clusii var. clusii
Gentiana dinarica
Gentiana pumila ssp. delphinensis
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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]
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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.
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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.
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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]
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Gentiana angustifolia
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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?
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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.
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Herman,
Thanks for the link, I had forgotten about your super website, which I now remember looking at ages ago. Very useful!
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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'.
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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]
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Gentiana ligustica from the Ligurian Alps in NW Italy (1600 metres)
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Now the flowers of Gentiana verna ssp. balcanica appear sporadically among the stones...
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Thomas and Roma, nice Gentiana!
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Thanks to the photographers of these beautiful gentians.
In June 2010 we found Gentiana ligustica at Mte. Sacarello in the Ligurian Alps.
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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!
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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...;-)
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Indeed Thomas! I was too fast.
Rudi, nice treasure!
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Thank you, Thomas and Herman
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Gentiana lutea (planted in 2007)
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Gentiana lutea ssp. lutea, sown in 2011 (Jurasek garden seeds)
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Gentiana straminea, sown in 2018 (Euroseeds, S.-E. Quinghai, China, 4300m).
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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]
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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.
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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.
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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.
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Gentiana paradoxa from Caucasus.
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Gentiana x macaulayi ‘Kingfisher’ loves the wet weather from the last few weeks and is spreading around. Now waiting till the flowers come.
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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.
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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]
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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.
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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!
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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.
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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.
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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 :)
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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.
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Thank you, Herman! Very interesting videos!
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Gentiana x macaulayi ‘Kingfisher’ is enjoying the sun