Germinating arum seed

Ellen Hornig hornig at OSWEGO.EDU
Fri Feb 5 14:44:37 CET 1999

Simon, in answer to your question about germinating arum seeds: it depends
on the arum.  As far as I know, all germinate at cool, not cold,
temperatures (50-55F is good); but some are epigeal (do it on the first
round), some hypogeal (make take a while - like 2 years - to put up a
leaf, though apparently they're up to something underground before that).
>From my experience and limited memory, A. italicum, nigrum,
purpureospathum, cyrenaicum (and concinnatum? ) fit in the first category;
"a lot of others" fit in the second.  Right now I have various species
emerging that were sown in early 1997.

In general, I just soak them (as for any large seed: 1-2 days in water,
with several rinses), sow, and keep in a cool place (cyclamen house).  If
they don't come up the first season, let them follow natural patterns
until they do.  I'd wait at least 3 full years before discarding - and if
you want them very much, longer than that might still produce results.

Good luck.


Ellen Hornig
Seneca Hill Perennials
3712 County Route 57
Oswego, New York 13126
USDA zone 5B (mintemps -10 to -20F)
(315) 342-5915

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