Scottish Rock Garden Club Forum
Bulbs => Bulbs General => Topic started by: fredg on May 10, 2011, 06:54:21 PM
-
The first of my Roscoea to flower this year.
Unfortunately I don't know which particular one it is as the pigeons kindly removed all my labels.
Pigeon pie anyone?
Roscoea sp.
-
Looking at last years photos I'm tending towards an id of Roscoea cautleyoides CLD772.
I do have 4 different yellow/ cream Roscoea cautleyoides though.
£*&x%* Pigeons >:(
-
Two forms of Roscoea cautleoides sown in January 2007 from Exchange seed labelled R. cautleoides 'Jeffrey Thomas'. I thought I read somewhere that 'Jeffrey Thomas' was a purple form?
I don't think they like the dry weather the flowers are lasting no time at all.
-
Roscoea cautleoides 'Jeffrey Thomas' is a primrose yellow that fades cream, I think.
I prefer the spelling Roscoea cautleyoides - but I'm not sure of that .... edit: yes I am, the RHS plant thingy agrees with me! :-\ http://www.theplantlist.org/tpl/search?q=Roscoea+cautleyoides
In any case, I would not expect seed from it to be pure, but to show variation and so throw some purple shades.
-
I had it with a "y" on my label but then noticed in Dwarf Bulbs and in The Smaller Bulbs that Brian had it without so assumed that to be correct. Kew has it with the "y" on the Monocot Checklist and on the Plant List. I prefer it with the "y", sems to flow better-uses more ink on the label though!!
-
David,
My Roscoea cautleyoides Jeffrey Thomas from last year
-
Thanks for that Fred. Your flower looks in better nick than mine!
-
Fred
are they in pots,mine have not emerged above ground yet?
-
Tony,
They are in smallish pots that have been outside all winter and still are.
These fellows are tough.
-
No sign of any Roscoeas above ground here... and we won't expect them until end of June, even into July.
-
Quirk of the weather we've had this year I think. Apart from the ones in flower that I've shown all my others have noses showing.
-
Roscoea cautleyoides Jeffrey Thomas with backlighting :D
-
Another two Roscoea into flower and one already posted
1. Roscoea humeana Rosemoor Plum side lighting
2. Roscoea humeana Rosemoor Plum full frontal lighting
3. Roscoea humeana Lutea
4. Roscoea cautleyoides Jeffrey Thomas (again) side lighting
-
Roscoea cautleoides 'Jeffrey Thomas' is a primrose yellow that fades cream, I think.
I prefer the spelling Roscoea cautleyoides - but I'm not sure of that .... edit: yes I am, the RHS plant thingy agrees with me! :-\ http://www.theplantlist.org/tpl/search?q=Roscoea+cautleyoides
I think it was named after Sir Proby Thomas Cautley, a British engineer that worked in India. The genus Cautleya is also named after him.
-
Another yellow, to be honest to my eye there's not as lot of difference with some named varieties.
1. Roscoea cautleyoides Kew Beauty
-
2 unknowns, first might be R. cautleyoides? Second is very small, hardly 1.5 cm big (or small). Any ideas?
-
A lovely clear white Roscoea I got as a gift from a fellow SRGC-member who grows it in her garden near Glasgow. The clear white was too much for my poor camera to cope with....
-
Lucky you Pascal. That is a super white. 8)
-
Bought from Crug farm as Roscoea praecox aff., a very elegant plant and multiplies fast.
-
Very nice Roscoea's, Pascal. That white one is a stunner!
-
Wim, Ian McEnery posted a picture of the same white form in the "June 2011 in the Northern Hemisphere"-thread (page 3) with basically the same problems as I had photographing it, either the flowers are overexposed or the surroundings are underexposed on the picture, it is really the purest white and my picture also doesn't do justice to it.
-
Roscoea humeana alba has one of the largest flowers of the genus, I think. It is, without doubt, THE most beautiful 8) I have loved it since I first saw it in a slide from Ron McBeath and it was one of the most exciting days for our garden when we obtained it! It's not up yet this year.... hope it is okay. :o
-
Fingers crossed Maggi. Do you know if it produces viable seeds or is it self-fertile? I think the plants I have are also traceable to Ron McBeath but do you know the history of it? Is it a single clone in cultivation or a naturally occuring variant?
-
Not sure, Pascal.... I'll try to find out.
-
Roscoea alpina Pascal ?
-
I'm still unsure whether I like this one or not.
Roscoea scillifolia atropurpurea
-
Great to see this nice little gingers.
Pascal,
Your Roscoea humeana alba looks fantastic!
-
I have processed the .raw with Photoshop and did a closer crop so hopefully this picture does it a bit more credit. The lack of contrast in the whites is a real test for my digicamera.
-
This Roscoe comes from the 07/08 Seed ex. Flowering for the first time today
-
Roscoea alpina out today ;D
-
Very nice Fred have they all multiplied for you since buying them,did they come from edrom?
-
I've had the R. alpina for quite a few years Dave.
Not sure where it came from but it wasn't Edrom.
-
The clear white was too much for my poor camera to cope with....
the same problem ;D...when i saw this wonderful Roscoea humeana 'Snowy Owl' the first time on a foto i was electrified...a must have. a very good guy from netherland gave me a few with some other roscoeas of his collection. it flowered this year in my garden the first time and i was so happy 8).
the second one is also a nice white species...Roscoea nepalensis (also from the kind netherland guy; many thanks if he reads here ;))
-
...when i saw this wonderful Roscoea humeana 'Snowy Owl' the first time on a foto i was electrified...a must have. a very good guy from netherland gave me a few with some other roscoeas of his collection. it flowered this year in my garden the first time and i was so happy 8).
the second one is also a nice white species...Roscoea nepalensis (also from the kind netherland guy; many thanks if he reads here ;))
You are a lucky man... beautiful white Roscoeas 8)
-
Somehow I've managed to miss this thread entirely. Some wonderful Roscoes all. The Snow Owl and nepalensis are real eye-catchers. I wonder about the hardiness of these Roscoeas. A few friends gorw some but haven't had them through a really severe winter yet, one day they'll find out as we are long overdue for one.
johnw
-
I've given up over-wintering R. cautleyoides here, and R. humeana passed away this winter as well. R. schneideriana seems fully hardy down to -20C, and R.
alpina scillifolia should also be fully hardy, although it's so ugly and small flowered that I decided to remove it last year.
-
yes the hardiness might be a problem in some species. to grow them outside while the winter is walking a fine line. full hardy over years here in my zone6b are cautleyoides 'Jeffry Thomas', tibetica, purpurea, scillifolia, scillifolia var. atropurpurea. good to hear that schneideriana is hard in norway (with snowcover?). i'll let them stay outside next winter. humeana is borderline...i lost some but also some survived (normal form). but i don't make experiments with such precious species like the white humeana + nepalensis or the lovely pastel yellow flowering humeana 'Long Acre Sunrise' till i haven't enough copies grown from seed.
not an eyecatcher but worth to grow in my mind even though the flower is small and short living (in sunny places)...Roscoea scillifolia f. atropurpurea
-
Without snowcover. R. tibetica was also hardy here for years, but it was overgrown by a Hosta and I think it's gone now. I've only seen R. cautleyoides grow at relatively low altitudes in Lijiang and around Baoshan, at higher altitudes it's gradually replaced by R. humeana, and further north in yet higher altitudes it's replaced by R. tibetica and R. schneideriana.
-
Roscoea humeana alba has one of the largest flowers of the genus, I think. It is, without doubt, THE most beautiful 8) I have loved it since I first saw it in a slide from Ron McBeath and it was one of the most exciting days for our garden when we obtained it! It's not up yet this year.... hope it is okay. :o
All is well, our R. humeana alba is up and flowering.
Ian reminds me that our first glimpse of this plant was in a photo in the SRGC Journal by the late George Kirkpatrick.
-
Thanks, this helps a great deal everyone. I will have to try some seed from the seedex next time.
johnw
-
I'm thinking of re-locating my small collection of Roscoea to a more shady position, at present they are in full sun. When's the best time to do it please?
-
Anyone?????????????
-
David
the ideal time would be just as they are about to start into growth but it would be difficult to locate them then and searching may cause unnecessary damage.
I would opt to move them as the leaves start to yellow they start to go down at the end of this season.
I have moved a number of ours successfully at that time before.
-
Many thanks for that Ian.
-
'Greenspan', wonderfull white Roscoea!
I have only the more common ones:
1. Roscoea auriculata var. beesiana at its best
2. Roscoea humeana has just started flowering
Poul
-
@poul
i guess the last one of your Roscea is a R. purpurea. R. humeana flowers very early (mid-end-may) and R. purpurea is in flower now.
-
A couple of Roscoea's which are flowering here since a couple of weeks and which are still flowering now:
Roscoea purpurea 'Peacock Eye'
and Roscoea purpurea 'Red Gurkha'