Bountiful Bulbs Need Dividing
Arnold Trachtenberg (Sun, 19 Apr 2009 16:20:04 PDT)

Judy:

What about colchicum? Can I wait until fall, as their flowers fade or
must it be as the leaves yellow off in June?

I move mine just after the foliage turns brown and there is only the
hole in the ground where the leaves once were. I have used a wooden
tongue depressor to dig them. Learned a lesson after slicing one in
half a couple of years ago. I use the hole to follow down to the bulb.

I wouldn't move the Frittilaria imperialis. They are very fussy bulbs
and you may not be so lucky in the new location My yellow one is
flowering its head off right now under a Russian medlar tree.

Arnold