Sedum forum: How much sun for sedum seedlings? Dragon's Blood zone 5

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Inkidu
May 9, 2017 1:43 PM CST
Hello all,
First post. Great site. Read an older post and thought the group would like to see some pictures. I have two flats that have been under a clear lid outside under the shade of a porch. I decided to give one some air and direct sun for short period of time. Good idea or not?

I filled a mason jar with dry crush granite and 10,000 seeds. Gently shook the jar and then spread evenly. I got results but the germination rate is low. Typical? Are they even sedum seedlings?

Would like to start a green roof. Interested in starting much more. Suggestions for better germination rate are welcomed.
Thanks for any help

Thumb of 2017-05-09/Inkidu/65ae19


Thumb of 2017-05-09/Inkidu/6c6366


Thumb of 2017-05-09/Inkidu/98c5e3

[Last edited by Inkidu - May 9, 2017 1:44 PM (+)]
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Name: Lynn
Dallas, OR (Zone 8b)
Charter ATP Member Garden Sages I helped plan and beta test the plant database. I helped beta test the Garden Planting Calendar I was one of the first 300 contributors to the plant database! Plant Database Moderator
Forum moderator I helped beta test the first seed swap Million Pollinator Garden Challenge Celebrating Gardening: 2015 Plant and/or Seed Trader Garden Ideas: Master Level
Image
valleylynn
May 9, 2017 4:39 PM CST

Moderator

Hi Inkidu, and Welcome! to NGA.
They look like they may be sedum seedlings, but look like they need more light. They look very spindly. If the seeds are a mix of different sedum they can emerge at different times. Some take longer to germinate. Now comes the tricky part, don't let them dry out. But you also don't want to drown them.
Please keep us up to date on your progress. It will be interesting to watch them grow. Hurray!

Inkidu
May 9, 2017 7:29 PM CST
valleylynn said: Now comes the tricky part, don't let them dry out. But you also don't want to drown them.
Hurray!

Thanks for the reply,

I checked on them and noticed the flat, with a flat Oasis sheet, was noticeably lighter. Seem to catch it quick enough and it was only in the mid 60's today. I thought they looked spindly myself. Not wanted to risk them drying out again, I thinking I'll keep the lid on for now. I understand that their drought tolerant and like the sun but there is a limit for something so small. Would 5-8 hours of direct sun with the lid on be too much? Maybe a gradual introduction to the sun might be better?

Thanks for any help

Name: Lynn
Dallas, OR (Zone 8b)
Charter ATP Member Garden Sages I helped plan and beta test the plant database. I helped beta test the Garden Planting Calendar I was one of the first 300 contributors to the plant database! Plant Database Moderator
Forum moderator I helped beta test the first seed swap Million Pollinator Garden Challenge Celebrating Gardening: 2015 Plant and/or Seed Trader Garden Ideas: Master Level
Image
valleylynn
May 10, 2017 8:13 AM CST

Moderator

I think right now direct sun might fry them. But they do need very bright light. Maybe a couple of hours of early morning sun? I have never grown sedum from seed, other than using the winter sow method. Had great results with that.

Inkidu
Jun 4, 2018 6:40 PM CST
valleylynn said:Hi Inkidu, and Welcome! to NGA.
Now comes the tricky part, don't let them dry out. But you also don't want to drown them.
Please keep us up to date on your progress. It will be interesting to watch them grow. Hurray!

A year later (not a complete loss, but close)
Thumb of 2018-06-05/Inkidu/01168b
Try try again, Better this time so far.
Thumb of 2018-06-05/Inkidu/22a740
And my first attempts at a grow out bed/proof of concept modular green roof setup.
Some concerns of the long term durability of the perlite and expanded clay after repeated freeze thaw cycles. It would never be walked on.
Thumb of 2018-06-05/Inkidu/281c69
Thumb of 2018-06-05/Inkidu/ff14df
Thumb of 2018-06-05/Inkidu/d6e0c8
Any suggestions on where to post a DIY green roof thread?
Thanks for any help.


Name: Lynn
Dallas, OR (Zone 8b)
Charter ATP Member Garden Sages I helped plan and beta test the plant database. I helped beta test the Garden Planting Calendar I was one of the first 300 contributors to the plant database! Plant Database Moderator
Forum moderator I helped beta test the first seed swap Million Pollinator Garden Challenge Celebrating Gardening: 2015 Plant and/or Seed Trader Garden Ideas: Master Level
Image
valleylynn
Jun 4, 2018 6:49 PM CST

Moderator

Wow, you've been busy.
This would be a good Forum to post a DIY. https://garden.org/forums/view...

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