I know that some people have
grown this plant in warmer areas by putting the tubers in the refrigerator for
a few months.
Here in California, my Helicodiceros
and Dracunculus started coming up in the end of December. Here we have a Mediterranean
climate. In fact almost all of our invasive weeds here are Mediterranean
natives: Avena, Hordeum, Vinca, Lolium multiflorum, Taeniatherum, Centauria
solstitialis, Centauria diffusa, Carduus pycnocephalus, Carthamus . . . just
to name a few. We have hot dry summers, with temperatures in the 40s degrees C.
In September and October the temperature begins to drop. By December we are
having our first freezes. My Biarums were out in September and all my Arums (I
have eight species) and Ambrosina bassi have at least the first leaves up by
November. We have cool to cold wet winters, and the Helicodiceros is usually in
full foliage by end of February. I get my first blooms in April.
I hope that this helps,
D. Christopher Rogers
Senior Invertebrate Ecologist/
P.O. Box 4098
Davis, CA 95616
∙ CALIFORNIA ∙ MISSOURI ∙ PENNSYLVANIA ∙ VANCOUVER
firstname.lastname@example.org [mailto:email@example.com] On
Behalf Of StroWi@t-online.de
Sent: Wednesday, January 27, 2010 1:29 AM
Subject: [Aroid-l] Temperature requierements for Helicodiceros
from the temperatures and seasonal rainfall
on Sardinia I guess that Helocodiceros grows from late Sebtember to April or
May with the maximum of rainfall in November and December and temperatures down
to 8 °C (46 °F) in December to February.
I would like to know, wether the low
temperatures in the growing season are neccessary or if Helicodiceros could be
grown (and flower) at higher temperatures as well.
Looking forward to any comment,
found in this incoming message.
Checked by AVG - www.avg.com
Version: 8.5.432 / Virus Database: 271.1.1/2653 - Release Date: 01/28/10