Slightly OT: Arum species

[J.E. Shields]

Hi all,

I've tried several "hardy" Arum species here, outdoors in the woodland
garden.  None have survived more than a couple of years, dwindling away to
nothing.

So I switched to winter-growing Arum in the greenhouse:  Arum concinnum, A.
cyrenaicum, A. dioscoridis, and A. purpureospathum.  There was a fifth
species, which seems not to be with us anymore.

These are in 2-gal. plastic containers and are producing abundant
leaves.  How old or large do they need to be to flower?  What triggers
flowering?  Will they ever bloom in a greenhouse?

I'm pretty much at sea with these Arum.  I don't have a clue what their
growth requirements might be.

Best wishes,
Jim Shields
in central Indiana (USA)

*************************************************
Jim Shields             USDA Zone 5             Shields Gardens, Ltd.
P.O. Box 92              WWW:    http://www.shieldsgardens.com/
Westfield, Indiana 46074, USA
Tel. ++1-317-867-3344     or      toll-free 1-866-449-3344 in USA

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