[Arisaema-l] Arisaema griffithii germination protocol?

[Gordon Tingley]

Hello,

 

I recently received seeds of A. griffithii, and A. griffithii var. pradhanii
and would like to know if either of these species require cold
stratification. I usually pre-germinate my Arisaema seeds by placing them in
moist paper towel, enclosed in zip lock bags, all kept at room temperature.
Most species seem to respond well to this treatment, although I have yet to
have any luck germinating Arisaema nepenthoides in this manner.

 

I have already bundled the seeds in paper towel, and wonder if the bagged
seeds should now be placed in the refrigerator for cold stratification? If
so, what amount of time should I allow before returning the packets to room
temperature?

 

I would welcome any advice.

 

I am also hunting for seed of A. candidissimum, and A. nepenthoides.

 

Gordon Tingley, 

Southwestern Nova Scotia, zone 6B or thereabouts

 

From: arisaema-l-bounces at science.uu.nl
[mailto:arisaema-l-bounces at science.uu.nl] On Behalf Of Jean-Claude Brutsch
Sent: Monday, January 06, 2014 10:53 AM
To: Arisaema Enthusiast Group (AEG) Discussion List (and other hardy Aroids
Subject: Re: [Arisaema-l] A. griffithii culture

 

For those who are interested in arisaema seeds of griffithii, nepenthoides
and a few others, visit : 

 

http://www.jelitto.com

 

 

 

On Jan 6, 2014, at 1:08 PM, Aad van Beek <avbeek1 at hotmail.com> wrote:





 

Of all the Himalayan species I have tried to grow the only one that has
survived and flowered has been A. concinnum. I have killed speciosum,
griffithii, costatum, intermedium, jacquemontii, and even an undescribed one
from the top of a mountain in Vietnam. These all occur at too high of
elevations with cool day and cool night temperatures during the growing
period to be grown successfully for long periods in the Southeastern US.
There are of course exceptions and areas around Asheville might be most
amenable to these species. I find even some of high elevations Hengduan
material difficult as well. Surprisingly the "consanguineum" from Vietnam
seem content so far, but do not follow seasons when grown in pots.

 Aaron in E Tennessee where nights can be cool in the summer, but hot during
the day.

 

 

Would be nice if seeds of griffithii and the other once mentioned would be
donated to the exchange. I would love to try these challenging species. As a
novice the different consanguineum seeds offered last year germinated medium
to very well even dough we had a very hot summer.

 

Aad,

Groningen, Holland

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