HYB: seed preparation
- Subject: [iris] HYB: seed preparation
- From: "Robin Shadlow" r*@wildmail.com
- Date: Sat, 4 Nov 2006 11:28:01 -0600
- List-archive: <http://www.hort.net/lists/iris/> (Web Archive)
Working on getting those last seeds potted up before it gets too
cold to work. This year I am changing what I have done for the
last three years. I had used different sized pots depending on
how many seeds I had in a cross, 4” pots for very small crosses,
and up to 10” hanging baskets for the larger crosses.
The first year, I got very good germintation. Then the second
year it was much reduced, and again reduced the third year. I
determined that the crosses in larger pots were the ones that
failed to germinate in general. The last two years we have had
very warm spells up into the 90s during April. Germination nearly
stopped both times.
Not sure what is going on, maybe the larger pots take longer to
warm through when the conditions that trigger germination start
here. Its also possible that the larger pots don’t leach as well.
The mix has been the same for all three years. Now only using
the mum pots or smaller.
The pots overwinter in a colder area, and I am hoping that moving
them to the front drive in March may get germination started so
that more are up before temps get too high. I should be able to
protect them easily enough against the late storms.
Any one have any opinions what the critical air (or soil temps)
are to stop germination? Also any ideas about other things to try
would be welcome. We have some seeds that would be fine
candidates for experimentation.
Robin Shadlow
zone 5 NE
where if we can't get enough seeds set, better get the ones we
got to germinate : )
Care2 make the world greener!
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