Scottish Rock Garden Club Forum
Seedy Subjects! => Grow From Seed => Topic started by: maggiepie on October 23, 2012, 09:57:30 PM
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This was grown from seed labelled G. madeira which I see is G. maderense.
Not sure this is maderense, I wondered if it might be G. canariense but leaves don't look right for it.
The plant has been through several frosts without seeming to do it too much harm but I have just dug it up and am going to attempt to winter it indoors.
Would be very happy if someone can ID it for me.
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I think it's G. yeoi which I think is the new name for G. rubescens.
Is there a trunk under all those leaves or does it look like a giant G. robertianum?
http://www.marksgardenplants.com/rubescens.html (http://www.marksgardenplants.com/rubescens.html)
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Mark, I wouldn't say it has a trunk but I noticed the bottom leaves were lying on the ground and seemed to be acting like anchors if that makes any sense.
Could be the start of a trunk?
I've never grown G. robertianum so can't give an opinion there.
If it is G. rubescens, how hardy is it and how long does it take to flower?
This plant has been growing in a really lovely mound, I have one other still in the garden which has the same shape.
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G. maderense has a definite trunk and makes a tall plant, to a metre or even more if in good conditions. I saw a white-flowered form this last summer. Very nice.
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Lesley, I had G. maderense ( pink ) in Oz but can't remember what it looked like when young.
Think it took some years to flower and then croaked but it was magnificent.
When does maderense start to grow a trunk, in its first year?
I will try and get a pic of the inside of the plant tomorrow if it doesn't get crisped tonight.
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May be G. palmatum, a little hardier than maderense... :-\
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G. rubescens has soft stems and a very short trunk and from memory, mine died out, a flatish over wintering rosette at ground level. The leaves are not sturdy. It grows in year one, flowers in year two and dies that winter.
My G. canariense, sadly also died out, also had a short truck but the rosette of leaves was held above ground level.
G. maderense Guernsey White
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Are the leaves on your plant succulent or soft. Take another photo looking side ways from ground level.
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Mark, am not sure the are succulent, they are very thick and strong, they don't get droopy although now it is out of the ground they might.
I might have left it too late to dig up as today I see some crisped and blackened leaves.
Hope these pics help, the plant is just sitting in a bin at the moment.
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May be G. palmatum, a little hardier than maderense... :-\
Nicole, I had a palmatum a few years ago but it was potted and never did get very big.
Can't really remember exactly what the leaves looked like but don't think they were as sturdy as these.
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I don't know the others there Helen but I'm pretty sure maderense is monocarpic anyway so it would die after flowering. I don't have it here but a friend does, and she gets seedlings after the demise.
From those leaf pictures, it would be pretty hard to tell difference between any of those species.
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sorry I only just realised I didnt edit the leaf photos :-[
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Mark, I don't think the leaves on mine look like any of those pics.
???
Lesley, if mine turns out to be maderense, it doesn't have an icicles chance in hell of ever making it to flowering.
:'(
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Are the leaf stems on your plant pliable or hard and snap easily. All except rubescens have thick fleshy leaves and leaf stems that snap off when bent
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Mark, I thought they were pliable but just tried one and it snapped.
It is below zero in the garage at the moment though.
Think it might be a goner.
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I have a friend who supposedly has heaps of maderense seedlings at her place..... I reckon they're all canariense. I'm not really sure how to positively ID them though. I know what a mature maderense is supposed to look like, but do small ones of that ever flower, or only with a full flowerhead when they're large enough? And if they do flower, is it a small "head" of flowers then, or just a few here and there?
Anyone know?
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Paul the flowers of palmatum, canariense and maderense are quite different
G. canariense
G. maderense
G. palmatum
G. palmatum x G. canariense
the flowers of G. palmatum - top, G. rubescens - bottom left, and G. robertianum - bottom right
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A mature G. maderense and when wind blew it over
The flower head of G. maderense in bud and full flower - note the sticky pink hairs
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I see Mark has beaten me to it, but I spent a while this afternoon looking through piles of prints, found two of Geranium maderense, scanned and resized them so here is a mature plant in a greenhouse at the Cruickshank Botanic garden. It was about 5 foot tall.
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A bit stretched I think but magnificent.
Mine grew out side in 2004, stayed there over the winter but fleeced heavily during frost and flowered in April 2005. I want some again and rubescens and canariense ...
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I may be quite wrong but I think maderense grows for a few years until ready to flower, then flowers then dies. The one in Roma's pictures look about the size it grows here outdoors, at least in coastal areas. I've certainly seen it at over a metre. Not sure how it would do say, in Central Otago. I don't think young plants flower.
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It is a while since I have grown it but you are right Lesley it grows a few years into quite a big plant in good conditions ( in the soil in a greenhouse in Aberdeen) before it flowers. It then flowers over a few months and dies after setting lots of seed. It does not do very well in a pot. The best plants we had were self sown seedlings in a border in the corridor which connected the greenhouses. I used to weed them out and leave one or two of the strongest to mature.
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Thanks for the flower comparisons, Mark. I love the shots of the maderense in full flower. The one I have seen in person was just like that, and I think took 2 years to get there (I think that is what the owner told me). Amazing plant when in flower, but it really does need some space, doesn't it. I love the leaves acting as butresses to hold it up, but with the size of the flowerhead it definitely needs support.
Thanks again folks. I'll check on my friend's plant this afternoon hopefully and work out whether it is canariense or not.
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I use the old thread to ask for a new identification of a minute, prostrate Geranium, which is white flowering. It could be growing annual, but i´m not sure about. The only specimen germinated in spring as a weed in a cushion of Dianthus
'La Bourbole' 'La Bourboule'. While producing numerous seeds, it could prove weedy.
Does anybody know the plant and it´s name? Many thanks.
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I use the old thread to ask for a new identification of a minute, prostrate Geranium, which is white flowering. It could be growing annual, but i´m not sure about. The only specimen germinated in spring as a weed in a cushion of Dianthus 'La Bourbole'. While producing numerous seeds, it could prove weedy.
No idea about the geranium but a rectification of a small mistake : this is "La Bourboule" from a village (http://www.ville-labourboule.com/) in Massif central in Central France. It should be a selection of Dianthus gratianopolitanus which is native there.
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Many thanks, Karaba, for this important note.