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Thread: Suitable droseras to grow in the tropics.

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    Suitable droseras to grow in the tropics.

    Hello there!

    I'm trying to look for sundews that can be grown in tropical environment. The place I'm living in is quite hot and humid. The temperature range is between 20C to 35C/68F to 95F or maybe slightly higher. Humidity ranges from 40% in the afternoon and 90% at night.

    I cannot grow D. Capensis here. They are really intolerant of heat! I was told that D. Hamiltonii and D. Sessifolia grows like weed here though. I have successfully grown D. Binata by providing partial shade from the sun. D. Paradoxa and D. Lanata can be grown as well.

    What kind of sundews can I grow? Thanks in advance!

    PS: Any idea if these need dormancy and can be grown in tropical climates? :

    D. Hybrida (IntermediaxFiliformis)
    D. Venusta
    D. Natalensis
    D. Hilaris
    D. sp Lantau
    D. Admirabilis
    D. Cuneifolia
    D. spec. Pretty Rosette
    D. Trinervia

    Once again, thanks in advance!

  2. #2
    Hello, I must be going... Not a Number's Avatar
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    D. hybrida needs winter dormancy so that's probably out. D. hilaris and D. trinervia have summer dormancy so probably won't like the constant high temperatures but they might chug along for a couple years before expiring. The rest of the South Africans might do ok as your temperature range is within their limits. Then again it is also in the range for D. capensis too.

    D. sp. Lantau should be tropical so it should fare well.

    Any of the tropical D. spatulata should do well. If you get at least a 10°F drop at night you can probably grow South America Drosera with no problems.

    68°F/20°F is probably the lowest temperature I would go with Wooly Sundews but otherwise as you say they should do ok.

    Cindy in Singapore can probably give you some good suggestions.
    Grand Hotel... always the same. People come, people go. Nothing ever happens.

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    Moderator Cindy's Avatar
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    Hi Cheng (are you the same one on GCS?),

    D. binata enjoys full sun so do leave them in the brighter places. With shade, their leaves tend to become weak and floppy.

    D. capensis is one which I can vouch as a no-go for lowland conditions. However, your temperature range is 20C to 35C/68F to 95F so the species should thrive for you. It needs cool nights (20C is low enough) and is not affected by high day temperatures.

    D. Hamiltonii is not easy if your growing area is not cool at night although it is still slightly easier than D. capensis.

    D. sessilifollia and D. burmannii grow very well in the tropics. Most of the petiolaris complex sundew species will do well too.

    From your list, D. hybrida and D. sp. Lantau would be fine. D. filiformis and D. intermedia would grow continually without winter dormancy in the tropics.

    Other species you can try growing:
    D. adelae
    D. hartmeyerorum
    D. indica
    D. spatulata
    certain pygmy sundews
    Cindy

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    Agent of Chaos Wolfn's Avatar
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    You might be able to try filiformis 'red' which grows as a tropical plant.
    "I may be on the side of angels, but do not mistake me for one."

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    Hello, I must be going... Not a Number's Avatar
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    D. brevifolia will grow in tropical conditions but is basically biennial in nature so be sure to allow some to flower and reseed your pot. You can clip the flowers to keep them going longer but keep a new generation from seed going just in case. It seems that plants of this species from drier climates are capable of a dry dormancy like tuberous and pygmy Drosera and can come back after a dry spell.
    Grand Hotel... always the same. People come, people go. Nothing ever happens.

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    Thank you for the replies! Fancy seeing you here too Cindy! XD

    @Not a number - Any other American sundews I can grow?

    @Wolfn - Sure! I now have filiformis typical and another one, var tracyii. Loving them so far!

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    Quote Originally Posted by Cindy View Post
    From your list, D. hybrida and D. sp. Lantau would be fine.
    Cindy,
    Do you grow hybrida? This plant absolutely requires a dormancy in my conditions (as do filiformis - except red).
    All the best,
    Ron
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    Hello, I must be going... Not a Number's Avatar
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    You can probably grow the relaxed dormancy Drosera anglica such as Drosera anglica "CA × HI" or Drosera anglica 'Hawaii' from the Kanaele Bog. The Alakai Swamp population doesn't seem to like warmer summer termperatures that the Kanaele Bog plants tolerate.

    Drosera ×obovata 'Ivan's Paddle' and Drosera rotundifolia 'Charles Darwin' are also possibilities. True 'Ivan's Paddle' has to come from cuttings or divisions so it probably isn't found outside the US very often.

    The tropical D. intermedia from Cuba and Roraima, Venezuela should be growable.
    Grand Hotel... always the same. People come, people go. Nothing ever happens.

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