Daylilies forum: question on sprouting seeds

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Name: Sabrina
Italy, Brescia (Zone 8b)
Love daylilies and making candles!
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cybersix
Feb 20, 2017 6:28 AM CST
I tip my hat to you.
Hello!

The last time I decided to sprout some seeds I put them in my new good potting mix instead of using vermiculite, wetted and covered with kitchen plastic wrap (sorry, I don't know the exact term) to maintain humidity. Now some seeds sprouted and sone not yet. I had to remove the plastic wrap because the little plants are growing fast, but now what happens to other seeds? Is it enough to keep the top of the soil humid? Or should I move the plants in other pots and cover again the ones that did not sprout?
Thank You!
Sabrina, North Italy
My blog: http://hemerocallis.info
Name: Sue
Ontario, Canada (Zone 4a)
Daylilies Birds Enjoys or suffers cold winters Native Plants and Wildflowers Butterflies Annuals
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sooby
Feb 20, 2017 7:30 AM CST
Did you stratify them first? If you did the stragglers should germinate fairly soon, within days, so you don't need to do anything special for them. Assuming they're planted at about twice their depth they should get enough water to germinate with normal watering for the others. If they were not stratified first then the stragglers could take weeks or months to germinate in which case you can either wait it out or carefully transplant the ones that have germinated.
Name: Sabrina
Italy, Brescia (Zone 8b)
Love daylilies and making candles!
Daylilies Cat Lover Region: Europe Garden Photography Garden Ideas: Level 1
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cybersix
Feb 20, 2017 10:41 AM CST
@sooby - Sue, many thanks for your reply.

The seeds were dried stored in the fridge, I put them in water and peroxide and all were showing the little white rootlet when I put them in pots. I thought they would put new leaves all at the same time since they seemed to my eye at the same point of "life".

Seed from one cross spouted almost all together, some instead have 1 or 2 sprouts on 6 seeds.
Sabrina, North Italy
My blog: http://hemerocallis.info
Name: Sue
Ontario, Canada (Zone 4a)
Daylilies Birds Enjoys or suffers cold winters Native Plants and Wildflowers Butterflies Annuals
Region: Canadian Keeps Horses Dog Lover Plant Identifier Garden Sages
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sooby
Feb 20, 2017 10:53 AM CST
Daylily seeds don't all seem to respond to a peroxide soak as reliably as they do to stratification. How long is it since you planted them?
Name: Sabrina
Italy, Brescia (Zone 8b)
Love daylilies and making candles!
Daylilies Cat Lover Region: Europe Garden Photography Garden Ideas: Level 1
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cybersix
Feb 20, 2017 11:23 AM CST
Some were planted on 2/6 and some 2/11, it's a random sprouting because some of those planted later already sprouted.
Sabrina, North Italy
My blog: http://hemerocallis.info
Name: Sue
Ontario, Canada (Zone 4a)
Daylilies Birds Enjoys or suffers cold winters Native Plants and Wildflowers Butterflies Annuals
Region: Canadian Keeps Horses Dog Lover Plant Identifier Garden Sages
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sooby
Feb 20, 2017 12:00 PM CST
It will be more random if they were not stratified but it's only the 20th now, so some have only had 9 days. Give them 14-21 days. Any that haven't sprouted by then are likely dormant or non-viable so you can either wait for them, stratify them or discard them.
Name: Jan Wax
Mendocino County, N. CA (Zone 9a)
I'm a studio potter.
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janwax
Feb 20, 2017 3:38 PM CST
I have 3 packets of daylily seeds that came in the mail. They've been in the fridge for just a couple of day. Do I stratify further or plant directly into a pot?
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[Last edited by janwax - Feb 20, 2017 3:39 PM (+)]
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Name: Sabrina
Italy, Brescia (Zone 8b)
Love daylilies and making candles!
Daylilies Cat Lover Region: Europe Garden Photography Garden Ideas: Level 1
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cybersix
Feb 20, 2017 4:21 PM CST
Thanks Sue, I'll wait again then.

Jan, it's my understanding that dry seeds in the frideg are not stratified. Startification occurs when they are in a damp medium suc as paper or vermiculite.

I usually put them in water with 15-20 % of peroxide and then wait until I see the small rootlet appear. Then I plant them in vermiculite or, as I did this time, in a good potting mix and keep it damp until they sprout. This is my method, other people do in different ways.
Sabrina, North Italy
My blog: http://hemerocallis.info
Name: Sue
Ontario, Canada (Zone 4a)
Daylilies Birds Enjoys or suffers cold winters Native Plants and Wildflowers Butterflies Annuals
Region: Canadian Keeps Horses Dog Lover Plant Identifier Garden Sages
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sooby
Feb 20, 2017 5:02 PM CST
janwax said:I have 3 packets of daylily seeds that came in the mail. They've been in the fridge for just a couple of day. Do I stratify further or plant directly into a pot?


The reason for stratifying (damp chilling) is to break seed dormancy and get them to germinate all together and more quickly once you take them from the fridge to room temperature. If you don't stratify it doesn't mean they won't germinate at all but some may take weeks or months. Sabrina is correct that putting dry seeds in the fridge does not break seed dormancy, but it does prolong storage life.

Name: Jan Wax
Mendocino County, N. CA (Zone 9a)
I'm a studio potter.
Hummingbirder Dog Lover Irises Region: California Organic Gardener Dahlias
Garden Art Cat Lover Vegetable Grower Birds Celebrating Gardening: 2015
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janwax
Feb 20, 2017 7:27 PM CST
This year
I tried an obscure method of dealing with iris seeds.They were soaked in a fresh cup of cooled black tea daily for four days. Rinsed in between each day! They germinated in half the usual time.
I won't try that this time with the daylily seeds. I think I'll go with the peroxide method.
Thanks for the suggestions.

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[Last edited by janwax - Feb 20, 2017 7:38 PM (+)]
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Name: Sabrina
Italy, Brescia (Zone 8b)
Love daylilies and making candles!
Daylilies Cat Lover Region: Europe Garden Photography Garden Ideas: Level 1
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cybersix
Feb 22, 2017 3:42 AM CST
Other seeds are sprouting randomly.

There were three seeds (from three different crosses) still in peroxide that didn't show the little root yet. So I decided to try to do as Natalie does, put them in a ziplock bag over a damp cotton pad and put them in the back of the fridge. I don't know if this now can be called stratification since they were not dry, anyway I thought I could lose one seed per cross so I went ahead.
Sabrina, North Italy
My blog: http://hemerocallis.info
Name: Sue
Ontario, Canada (Zone 4a)
Daylilies Birds Enjoys or suffers cold winters Native Plants and Wildflowers Butterflies Annuals
Region: Canadian Keeps Horses Dog Lover Plant Identifier Garden Sages
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sooby
Feb 22, 2017 6:48 AM CST
If they have, or had, a chance to take up some water (such as from your damp cotton pad) then yes refrigerating is stratifying. What is not stratification is if the seeds are too dry internally to respond to the chilling. An average time to leave them in the fridge is about four weeks, after which they should all germinate quickly once at room temperature.
Name: Sabrina
Italy, Brescia (Zone 8b)
Love daylilies and making candles!
Daylilies Cat Lover Region: Europe Garden Photography Garden Ideas: Level 1
Image
cybersix
Feb 22, 2017 7:11 AM CST
Thanks Sue! I wrote the date on the bags, so I can check them from time to time and know how many weeks have passed.
The seed were already plump since they soaked in water and peroxide.
Sabrina, North Italy
My blog: http://hemerocallis.info

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