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Re: HYB:CULT: pots

Christian it all depends on your purpose.
If you are geminating seeds in the winter and leaving them in the big pots till planting time it makes little sense to me. If you have them germinate about 3 weeks to a month before lining out would give you a jump.

If you have germination in late fall or midwinter I would plant them one to a 3" to 4" pot when they get about 2". By planting time they should fill the pot with roots. One gallon pots take a lot of room and a lot of work to plant. Pots under 3" would be too small, any bigger would take up room.

It is unlikely that you will get spring bloom on TB's not sure you might on SDBs. Then normally need a chill to bloom. You have a good chance on getting fall boom on the ones that have the reblooming gene.

With all the genetics involved in modern iris knowing when and which seed germinates is almost useless information. With all the variable conditions in germinating seeds how can you be sure it was the cross or the conditions that made the difference.

Are you growing iris for just the seeds? Or just the best geminating seeds?
Iris seeds are nothing special to see. I get more than I want to plant now.

I have a very good average of first year bloom using my method. Winter germination is not worth the trouble and work.

Mike Greenfield
Zone 5b
SW Ohio
Region 6
----- Original Message ----- From: "christian foster" <flatnflashy@yahoo.com>
To: <iris@hort.net>
Sent: Sunday, February 05, 2006 6:13 PM
Subject: [iris] HYB:CULT: pots


I've been pondering on the issue of pots for about a month now. Over X-mas I got a good look at the roots of my seedlings the oldest of which were then about 2.5 months old. The primary roots were 6-8 inches long, but there wasn't much else going on root wise. The rhizome on my largest seedling is still smaller than a quarter, but the roots are getting down more.

I know some of you are using 3" pots, but I wonder if that might not be a waste. Someone on list said their seedlings roots were very close to the surface once they are lined out. If the roots 'prefer' to go down more wouldn't it be better to have a pot that was say 8-12" deep? And if the rhizome itself is only 3/4" accross by line out what's the point in having a pot that's 4'' accross? especially where space for the pots might be at a premium. I know some of you use 1 gal pots which give you the depth, but if you leave all the seedlings from a cross in one pot doesn't it get crowded sometimes? For my own curiosity I'm not sure I could get along with the one gal, because I want to know which seeds germ when and I want to know what happened to all my seeds. (of course if I get more seeds to germinate I might grow out of that.)

Just wondering.

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