Dormancy problems in Ornithogalum dubium

Paul Tyerman
Sun, 21 Jul 2002 17:59:14 PDT
Howdy All,

I have a problem with my orange Ornithogalum dubium.  I bought them two
years ago and they still haven't shot at all.  They have now been through
two complete growing seasons without sending up any sort of shoots at all.
There are 5 bulbs, all still there in the pot when I checked yesterday.  Is
there some way to "activate" them?

I have seen this discussed before, but cannot recall finding a means of
breaking this dormancy.  It obviously means that they may be prone to this,
but it is still very strange.  Meanwhile, I have had a yellow form of O.
dubium growing happily the whole time, flowering each year and even setting
seed (I assume this as there are three seedlings nearby that look an aweful
lot like the O. dubium).  I have no idea why this plant has been so happy,
when the other ones haven't been growing at all.

My only other experience with this orange form is when I bought them a
number of years ago in flower.  They continued to flower throughout the
whole of winter and into spring, eventually exhausting themselves and dying
off, never to return.

Now i thought it might have been something to do with me, except that the
yellow form is so happily growing and multiplying now.

Can anyone offer advice on this problem?


Paul Tyerman
Canberra, Australia. USDA equivalent - Zone 8/9

Growing.... Galanthus, Erythroniums, Fritillarias, Cyclamen, Crocus,
Cyrtanthus, Liliums, Hellebores, Aroids, Irises plus just about anything
else that doesn't move!!!!!

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