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Growing tips for D. stenopetala and D. arcturi


byblis

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Hi all,

I was asked for growing tips for both species. Here is just what I do with it. Plants grow and survive, sometimes produce plantlets but didnot flower so far. (D. stenopetala flowered in vitro one day):

Substrate: Pure peat, I have tried mixes with perlite, sand, Vermicullite but find as major disadvantage the groth of moss, algae and so on

Light: As much as you can give them, I found D. arcturi at the edge of a skiing rope/lane in N.Z. (Southern Island) agrowing in fully sun light at high elevation with much UV-light

Climate: If possible cool mountain climate, plants seem to suffer if it is too hot during the summer especially if the night temps donot drop down

Temperatures: Winter resting periode: 14°C days down to 6-8°C night temps, D. arcturi is fully hardy and I have kept it in my outdoor bog with temps around -20°C. The problem is that plants get overgrown by sphagnum and will die of it; D. stenopetala was not hardy so far and died outside, it should be hardy in British "winters" :-))

Summer: Continental European aclimate, temps as high as 35°C are tolerated if night temps are much lower

Hope this helps!

Stefan

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D. arcturi seems to grow mainly in black peat in the wild.

Wherever I have seen D. arcturi growing in the wild it has been found in 100% live sphagnum.

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Hi everybody

I agree with Sean, all the D. arcturi I have seen in Tasmania were

growing in pure sphagnum.

I grow both species in pure sphagnum, as Byblis, they rarely produce

flowers, in my case D. stenopetala has flowered one time.

Temps are 5-10°C during winter and can reach 35°C in summer days

but never over 25°C during nights. In my case, high temps induce

the formation of winter buds. In mid august plants begin their resting

period.

Yves

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Well, I've never been to New Zealand and Australia but I've seen many pictures of D. arcturi growing in the wild with typical black peat flore. An example here:

http://www.sarracenia.com/photos/drosera/darct01.jpg

You can also have a look to Lowrie's Carnivorous Plants of Australia volume 3 p139, pictures was taken in black peat bog(s).

I can also read p 136 :

"HABITAT: Grows in sphagnum bogs in the alpine hearthlands and in black peat along the margins of small streamlets."

Yves, for stenopetala you use live or dead sphagnum?

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Just commenting on my own experiences in the wild. I didn't say that they don't grow in peaty soils, just that the ones I have seen have always been in pure sphagnum.

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