[Arisaema-l] Cultivation of Arisaema

[DAVID LEEDY]

I realize this is a difficult question without being species specific, but would appreciate ideas and suggestions.
 
I have planted approximately 50 bubils of Arisaema from last year's seed distribution.  Approximately 35 + or so  sprouted, which I consider quite satisfactory.  However, after growing for a two weeks or more, sometimes 6+ weeks, the little plants are starting to fade.
 
I have them in 3" pots in partial shade (brief morning sun).  I noticed some of them leaning towards the light.  Does this indicate they need more direct sun light?
 
Many are now withering and going down.  Do they require a certain soil acidity/alkalinity?
 
It seems to make little difference as to whether I withhold water or keep them moist.  Any suggestions?  Should they be treated differently on really hot days (over 95+ degrees F.).  Generally I water them almost daily more when the weather is hot (over 100 degree F.).
 
My soil is a sand and hums mix with perlite, so it drains very easily.  Is this appropriate or what do you suggest?
 
Thank you in advance.
 
David Leedy
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