Climate and Growing Arisaema

Gusman Guy ggusman at ULB.AC.BE
Tue Jun 17 17:42:25 CEST 2003

Ray and Anne,
Difficult to answer such a question. It's true that in Europe also, Japanese species emerge very early, before the Himalayan. It depends so much on the way they are grown. Nurserymen in Holland, know that very well and can get flowers of anything almost at any time.
Now, what do our Australian friends think of that?

>The following idea was sent to me by Ann Kline and I find it interesting.
>Perhaps it will interest y'all too.
>Guy, I think you might find it an interesting hypothesis.
>I have been reading with interest all of the correspondence on the
>emergence of arisaemas.  I am sure if anyone would take the time to
>study a little climatology they would find that the emergence of the
>temperate arisaemas most likely corresponds to the beginning of the
>rainy season/ monsoon.
>The first rainy season of the year in Japan is
>February where it begins to rain after a dry fall and winter similar to
>our continental climate in the middle South,
>the SE Asian monsoon begins
>in April/May on the eastern part of the monsoon region in SE Asia
>and in the western part in late May and June after an equally dry winter.
>My triphyllum don't come up until the middle of April and the other U.S.
>species from the Central U.S. not until a little later when the mid west
>warms up.  Climatology has always been of interest to me since my father
>was the chief engineer of the Weather Bureau when I was growing up.
>Ann Kline
>I wonder if there is a corelation between the Asian species emergence times
>and the climate where they originated.

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