Daylilies forum: Minimum Outside Temperature for Daylily Seed Sprouting?

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Name: Tina
Where the desert meets the sea (Zone 9b)
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chalyse
Mar 13, 2013 7:49 PM CST
I'm wondering when I can begin over-nighting my daylily seeds outside and can only find a reference for minimum temps needed to sprout tomato seeds into seedlings (50 degrees). Does anyone have a general rule of thumb they follow for outside or minimum temperatures at a specific point after their seeds have shown their "eyes," and been placed in potting soil/trays?

Rolling my eyes.
Do not seek to follow in the footsteps of old; seek what those of old sought. — Basho

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Name: Betty
Bakersfield, CA
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Betja
Mar 13, 2013 9:46 PM CST
Chalyse, last year (2011 actually) I planted my daylily seeds in early December and kept them in seed flats outside through the winter, and they started sprouting about 6-8 weeks later and had pretty much all germinated by April. But this last year I planted my seeds in the flats in late August-early Sept. and they started germinating within a week or ten days after planting. And this year I'm hoping that somehow I can plant in July to move up the schedule even earlier so I can maybe see some scapes by the spring/summer of 2014. I still haven't seen a scape on any of my seedlings, and I must have at least 400 by now. But I'm hoping to see a bunch by this summer!

Betty
Name: Tina
Where the desert meets the sea (Zone 9b)
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chalyse
Mar 13, 2013 10:10 PM CST
A-w-e-s-o-m-e!! Thanks so much, Betty, we have such similar climates that I will go ahead and let the fun begin outdoors. My gut tells me they are ready, and the overnight temps around 50 are here. WooHoo!!

I estimate I have about 200-300 seeds sprouting, and the only problem with them is finding space to put them all until they mature LOL ... I took encouragement from everyone, though, and hubby is already digging up a 12x15 space in the front/side yard for some of them. Really, grass lawns are such a nuisance, and daylilies such good filler ... i'm hoping we just keep tearing up more lawn as the years pass and more seedlings flourish.

I can't wait to see what lovelies you find in your 400 this summer! Best of luck to them and you for some amazing flower faces!
Do not seek to follow in the footsteps of old; seek what those of old sought. — Basho

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Name: Fred Manning
Lillian Alabama

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spunky1
Mar 14, 2013 6:25 AM CST
I believe a little cooler is better than the heat in July and August. Ted Petit does his in an air conditioned trailer in Florida because of the heat. I think he said he set the temp on 65, not sure, but a lot cooler than the outside. Here I set mine on racks in the shade for the same reason. There seems to be a misunderstanding by some that seed needs light to germinate, they only need light after they sprout. Good luck to both of you with your seedlings.
Name: Tina
Where the desert meets the sea (Zone 9b)
Daylilies Cactus and Succulents Container Gardener Dog Lover Birds Enjoys or suffers hot summers
Garden Ideas: Level 2
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chalyse
Mar 14, 2013 7:02 AM CST
That is fascination news, Fred ... now I understand a potential reason why my heat-of-the-summer seeds may not have sprouted (hard for them to do when its 100 degrees ... why I didn't think of that before!!). Thanks!
Do not seek to follow in the footsteps of old; seek what those of old sought. — Basho

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Name: pam
gainesville fl (Zone 8b)
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gardenglory
Mar 20, 2013 10:00 AM CST
Im planting my seeds today. Im gardening by the moon as much as possible. Yesterday today and tomorrow (20th-22) are excellent days for seed planing. Flowers and veggies. The 23-26 are barren days. I figure the first day of spring is a good omen as well.
Name: Joe Hawkins
Ontario , Canada (Zone 5b)
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spiderjoe
Nov 8, 2015 7:01 PM CST
http://homeguides.sfgate.com/propagate-daylilies-seed-67187....
This article says , Daylily seeds germinate best when daytime air temperatures are 55 to 65 degrees Fahrenheit I tip my hat to you.
Name: Sue
Ontario, Canada (Zone 4a)
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sooby
Nov 10, 2015 6:31 AM CST
This is an old thread but since Joe has revived it, here's a bit more info that may be useful to someone. It makes a difference to the minimum germination temperature whether the seeds were stratified or not before planting.

Non-stratified daylily seeds germinate over a narrower temperature range than stratified seeds. From research on daylily seed germination published in the 1950s by Dr. Griesbach, for non-stratified seeds the minimum germination temperature was found to be 61F (16C). (The optimum was 72-77F (22-25C) and the max 91F (33C). If the seeds were stratified before planting, however, they could germinate at 50F (10C) or even lower.

The research article is this one:
http://www.jstor.org/stable/2473081?seq=1#page_scan_tab_cont...

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