All Things Gardening forum: When is the best time to sow Astilbe seeds in Canadian zone 5a?

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Ontario, Canada (Zone 5a)
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Daylilybaby
Sep 9, 2014 8:49 AM CST
Some says sow in fall other says in spring...I am comfused!! Confused
Spokane, WA (Zone 5a)
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Angelbee
Sep 9, 2014 9:16 AM CST
I read somewhere the seeds have a short life of 6 months.
Ontario, Canada (Zone 5a)
Daylilies Orchids Echinacea Dragonflies Peonies Butterflies
Birds Plant Lover: Loves 'em all! Bee Lover Roses Region: Canadian Amaryllis
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Daylilybaby
Sep 9, 2014 9:30 AM CST
so if I don't sow them now, they will be expired in 6 months?
Name: woofie
NE WA (Zone 5a)
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woofie
Sep 18, 2014 10:17 AM CST
You could try winter sowing them. I have some left over seed as well, so I may try that myself.
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Name: Elaine
South Sarasota, Florida (Zone 9b)
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dyzzypyxxy
Sep 18, 2014 11:34 AM CST
Are you sowing them outside or do you have an indoor place you can keep seedlings for the winter? In the 'wild' the plants would drop the seeds in fall, they would lie dormant through the winter and germinate in spring. Sometimes even seedlings will survive winter if they germinate before it gets too cold.

Commercial growers would sow now, and keep the seed flats cool-ish once the seeds germinate. Cool greenhouse conditions would apply, and you will probably have blooming size plants by the end of next summer if you do this. In front of a glass patio door might be a good place to bring the seedlings along starting in maybe February. Cool but bright light.

In either case, I would say the time to sow those seeds is now, or soon!
Elaine

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