Colchicum germination
Paul T. (Thu, 06 Mar 2008 20:27:12 PST)

But now, I think you meant: as a result of some unknown environmental
trigger, many different Colchicum species germinate, no matter how
many years they've been buried in their seedpots.

Diane,

I find this with Trillium germination...... last year I had seed sown
2, 3, and 4 years before all germinate, or at least in sufficient
numbers to notice that there were lots of seedlings simultaneously in
lots of pots.

I have found that some Colchicum (rhodopaeum for example) have
germinated easily (or conditions were just right) while others just
sit and wait.

Cheers.

Paul T.
Canberra, Australia - USDA Zone Equivalent approx. 8/9

Growing an eclectic collection of plants from all over the world
including Aroids, Crocus, Cyclamen, Erythroniums, Fritillarias,
Galanthus, Irises, Trilliums (to name but a few) and just about
anything else that doesn't move!!