Tropical Drosera rotundifolia from Japan?

[marcus]

Hello!

I hear that there are Drosera rotundifolia in the Kagoshima Prefecture, Japan, that may grow in tropical conditions.
Is anyone here growing these plants and/or can report on them? Takaaki Kagawa in his book Drosera of Japan mentions colonies that have a shorter dormancy requirement, but doesn't say that there are plants that don't require dormancy at all.

Here's an old thread from the CPUK Forum:
www.cpukforum.com/forum/index.php?showtopic=11418
(Although this thread raises some doubts about the tropical conditions there.)

Related to this topic are of course the D. rotundifolia in Western New Guinea mentioned by Fernando Rivadavia in the CPUK thread above, and the recent find of a possibly tropical form of D. rotundifolia on the Philippines, by Fulgent Coritico and Andreas Fleischmann:
www.repository.naturalis.nl/document/635622

I asked Andreas about the latter and he confirmed that the plants have not entered cultivation, nor is it know whether they form hibernacula.

Anyway, given the active CP scene in Japan and that the Kagoshima D. rotundifolia have been known for a long time, I was hoping that someone might be growing them.

Cheers,
Marcus

[sundewmatt]

hi marcus,

my kagoshima rotundifolias did eventually go dormant, but it may have been due to colder temperatures in my growing area. the adult plants formed hibernaculum and died but grew tiny plants from the hibernaculum leaves which sat there for ages until i recently repotted them. if all goes well, i should have a nice crop of them in a few months.

matt

[marcus]

Sept 26, 2016 1:27:18 GMT sundewmatt said:

hi marcus,

my kagoshima rotundifolias did eventually go dormant, but it may have been due to colder temperatures in my growing area. the adult plants formed hibernaculum and died but grew tiny plants from the hibernaculum leaves which sat there for ages until i recently repotted them. if all goes well, i should have a nice crop of them in a few months.

matt

Hi Matt!

Sorry—I only found your reply now!
Did you get a nice crop in the end? Please let me know if you have any to spare.

Thanks,
Marcus