Re: SPEC: seed germination update
- To: iris-talk@onelist.com
- Subject: Re: [iris-talk] SPEC: seed germination update
- From: H*@aol.com
- Date: Sat, 29 May 1999 18:52:42 EDT
From: HIPSource@aol.com
In a message dated 5/29/99 5:49:30 PM Eastern Daylight Time,
dkramb@badbear.com writes:
<< Any comments???????? >>
You may see germination on the foetidissima in the fall just as the
temperatures drop. Ditto the spuria.
If rates don't pick up on the La.and Va. and you have the seeds covered you
might fish around in the pots with a toothpick and bring some to the surface.
They like light. I suspect that may be the case with the reluctant Miss. as
well, but that is an odd species to call, as we have discovered here before.
Also, the aquatic irises have a lot of empty seedcoats sometimes and
germination rates can look lower than they actually are.
Check the source on your tridentata. If it is from a southern clime, it
probably does not need much chill, if from the northerly limits of the range,
it may. I got good germination here from fresh seed from a colder zone
surface sowed and left out over the winter. In its native haunts it is a
moist ground iris so may enjoy light.
I've never achieved germination on I. cristata, myself.
If the iris lactea forms don't germinate this spring leave them outside over
next winter.
Siberians need light not chill.
Deno says that he got germination on I. stolonifera at cold temperatures
after two years of alternating three month cycles of warm and cold. I had
three seeds and got nowhere.
Most of my outside stuff germinates in the middle two weeks of April here in
zone 7, give or take the breaks, which is about the time the French tulips
are peaking, the daredevil fringe is setting out tomato plants, and we are
approaching the time when hard freeze is still possible but pretty unlikely.
Anner Whitehead
HIPSource@aol.com
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