Utricularia praelonga


Christian
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Hi,

I'm growing Utricularia praelonga for 3 years now, but it has never flowered! Does anyone grow this plant as well and more interesting has it flowered ? I grow mine in the greenhouse during summer. I use the tray method. The pots are standing in let say about 2cm. of water. In Winter i place them on a coll windowsill. The temperature there is about 10°C. The plants are really growing well and have filled up the pot, but have not yet flowered.

Any help is much appreciated.

best wishes

Christian

P.S. : Ca´n any of the moderators please delete the other thread. I forgot to log in!

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Hi Christian,

U. praelonga flowers OK for me. I had some in pure Sphagnum in an undrained ice-cream tub; it did fine until leatherjackets (Tipula larvae) ate all the stolons - they quite like to live in Sphagnum. I have more growing in a pot, I think with a peat/sand mix, which stands in a water tray in the greenhouse all year round. The leaves are a little sparse - it's probably potbound, but it flowered this year.

Giles

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Hi Christian,

I row U. praelonga and it flowers profusely every year! It is one of those plants that will not flower very well if disturbed. My plant has been in the same 5 1/2 inch half pot now for about 6 years. It looks so cramped that you wouldn't even think there was room for a single bladder in the pot! I grow it in pure sphagnum moss in full sunlight in my greenhouse. During the winter it is overwintered in my spare bedroom at a temp of about 6-7*c. Every year during early summer it starts to form hundreds of flower stems. In my plant they become top heavy and fall over so I get a fantastic dispaly of bright yellow flowers flowing all over my staging!

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Hi Christian

I grow mine in a seed tray in full sun in a peat/perlite mix with a thick layer of sphagnum moss and it flower`s very well although the flower stem`s tend to be a bit floppy , it`s kept at 10*c in the winter .

I also tried a division of this plant in my unheated polytunnel a few year`s ago and although it`s been frozen solid on occasion`s during the last two or three winter`s it has slowly got bigger and finally this summer flowered for the first time and i found the flower spike`s were much stronger and didn`t flop at all so maybe we have been to kind to this species.

Steve

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I've grown it in the same pot for 15 years, but it didn't flower until it was pot bound and subjected to cold. It's in a greenhouse that is barely frost free in winter & I've finally re-potted it into fresh soil. It also sets seed easily & the seedlings have appeared in other pots. :)

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Hi,

Thanks for your answers! It seems, as if i keep it still to warm in Winter. I will try to keep it along with my Sarracenia at Winter (1°C - 5°C). Maybe this will help. In the last two years i havn't repotted the plant, so the pot is completely filled up.

Thanks,

Christian

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