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Thread: D.natalensis & D.madagascariensis"botswana"

  1. #1

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    I am about to receive natalensis and madagascariensis from Tamlin,and i need some help. I know they are south african but its big place. Any body know the ideal temp to sow their seeds in what is an ideal night temp. and what is an ideal day temp? Iread tamlins post
    Quote
    South Africa falls into the southern Temperature Zone enjoying a warm climate all year round. A Mediterranean climate prevails along the Cape coast with winter rainfall. Summer is from October to March.
    Temperature varies from lows of 15║ C (60║ F) to highs of 30║ C ( 96║ F), with occasional chilly nights.

    Winters require warm clothing, and are wet from frequent rains. Winter is from April to September.
    Temperature vary from lows of 0║ C (32║ F) to highs of 18║ C ( 66║ F).


    Humidity is high in the summer, less in the winter and less the further inland you go. There is a lot of sun in both seasons.

    [/QUOTE]
    These are winter growers are they not? so are they going to do better in temps from 32-66F or would these do better from 60-90 F, are they going to need a summer dormancy? are they going to need a dormancy at all?

    Thanks

    Joel [img]http://www.**********.com/iB_html/non-cgi/emoticons/confused.gif[/img]

  2. #2

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    These species will do fine in any range between 55F - 80F. Occasional lower or higher temps. will not matter. They grow year round, and have no dormancy except for Drosera madagascariensis which dies back and returns from it's roots after a short dormacy. All are suitable for a warm well lit terrarium standing in a couple cm rain or distilled water. Botswana can stay in the tray during dormancy too, no need to dry this off. They appreciate cool nights.

    The species which are wintergrowers (12 hr. photoperiod) are alba, cistaflora, pauciflora, hilaris, trinervia, cuneifolia: these require a dry summer dormancy.

    Other South African tropicals which grow year round include aliciae, burkeana, capensis, "coccicaulis", collinisae, madagascariensis, natalensis, nidiformis, slackii, venusta.

    D. regia is a bit of a case in itself and one species I have had little success with. Martin could tell us more on this species.

    Other uncertain species are affinis, galbripes, pilosa and ramencetacea all of which I have little experience with.

    Most seed of the tropical varieties germinates best in warm, humid conditions, and may take up to 2 months.
    "Grow More, Share More"

  3. #3

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    Tamlin please write a book on drosera! [img]http://www.**********.com/iB_html/non-cgi/emoticons/biggrin.gif[/img]

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    Funny that you should mention it, but I have been working on just this very idea: "Growing Sundews from Seed: The Art of Rare Species Preservation". Don't expect publication anytime soon though, but I am writing it!
    "Grow More, Share More"

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    It's been one of dem days BigCarnivourKid's Avatar
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    Thumbs up

    Seriously Tamlin, I'd like to reserve my copy now, please!
    ---Steve Allinger---

    How come chicken fingers are bigger than buffalo wings?

    My Grow List

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    do me favour give me a ruff draft will ya? who cares about the rest of the world, all that maters is that i get one. [img]http://www.**********.com/iB_html/non-cgi/emoticons/biggrin.gif[/img] [img]http://www.**********.com/iB_html/non-cgi/emoticons/biggrin.gif[/img] [img]http://www.**********.com/iB_html/non-cgi/emoticons/biggrin.gif[/img] [img]http://www.**********.com/iB_html/non-cgi/emoticons/biggrin.gif[/img]

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    Ai-Yah! I received an email from a prominent 'tropical' Drosera dealer that D. madagascariensis 'Botswana' required no dormancy, and could survive temperatures into the high 80's! Yet I hold Tamlin's wisdom in the highest regard!

    Well, too late now. I've already ordered the plant. Time will tell, and not for years because I can grow even Venus Fly Traps and other unsuitable CP species for at least a year here in Hawaii. Longevity will take a while to establish.

    Incidentally, I'm all for supporting the sponsor of these MBs. But since I can only grow 'tropical' CPs, I'm in a bit of a bind. If I ever need a Nepenthes, I'll contact our host, you betcha'!

    Johji

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    I am not sure that you could call the "sp. Botswana" rest a true dormancy. For me the plants grow on an ascending stem, and when it gets tall it seems it's life cycle is over. I assume flowering would be when the stem is at it's peak, but this form is very shy in flowering. Mine never have. When the stem reaches the limit of it's growth, the process of dying leaves along it's lower length accelerates, and the stem itself dies. Both times the has happened in a matter of weeks new growth is noted at the base, I presume from the roots. Keep it under the same conditions as when it was growing, and it should return in a short time. BTW dead leaves along the stem is not a sign of poor culture, and is just part of the plants normal cycle.

    Thanks all for the nice compliments
    "Grow More, Share More"

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