Sempervivum and Jovibarba forum: Sempervivum seedlings Part 1

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Name: Janice
Cape Cod, MA, USA (Zone 7a)
Charter ATP Member I was one of the first 300 contributors to the plant database! Cottage Gardener Garden Ideas: Master Level Sempervivums Tip Photographer
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sandnsea2
Dec 30, 2011 11:04 AM CST
Some mixed Semp seeds


[Last edited by sandnsea2 - Dec 30, 2011 11:05 AM (+)]
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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
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valleylynn
Dec 30, 2011 11:08 AM CST

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I found these this summer, snuggled up under one of the heuffelii rosettes. The could be either sempervivum or heuffelii. Both had been blooming last fall, so I broke the dry bloom stalks off and scattered seed.
Thumb of 2011-12-30/valleylynn/f9c92b

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twitcher
Dec 30, 2011 12:32 PM CST
I'll bet you have Sempervivum and a Jovibarba there!
Name: Janice
Cape Cod, MA, USA (Zone 7a)
Charter ATP Member I was one of the first 300 contributors to the plant database! Cottage Gardener Garden Ideas: Master Level Sempervivums Tip Photographer
Daylilies Roses Orchids Miniature Gardening Lilies Irises
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sandnsea2
Dec 30, 2011 12:53 PM CST
These were sown in early summer 2011.
some seedlings. They do grow quickly and that surprised me, once they get over that first set of leaves.

Thumb of 2011-12-30/sandnsea2/f1cd4a Thumb of 2011-12-30/sandnsea2/bbaba2 Thumb of 2011-12-30/sandnsea2/28b184

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[Last edited by sandnsea2 - Mar 19, 2012 6:49 PM (+)]
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Name: tabby
denver, colorado zone 5
Charter ATP Member Clematis I was one of the first 300 contributors to the plant database! Daylilies Irises Plant and/or Seed Trader
Cat Lover Enjoys or suffers cold winters Region: Colorado Ponds Roses Sempervivums
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tabby
Dec 30, 2011 1:09 PM CST
Now I'm itching to start my semp seeds, but I think it would be better to wait. Although I could start them early and move them out to the cold frames in March.
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
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valleylynn
Dec 30, 2011 2:04 PM CST

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You could use the Winter Sow method Tabby. : )
No fuss, no muss.

Janice, amazing photos. Hurray! We should be able to see what they will look like as mature rosettes this year?

Twit it will be so much fun watching to see what they turn into as mature plants. I had Jovis and Semps blooming in that bed. Wonder if they cross pollinated?
Name: Janice
Cape Cod, MA, USA (Zone 7a)
Charter ATP Member I was one of the first 300 contributors to the plant database! Cottage Gardener Garden Ideas: Master Level Sempervivums Tip Photographer
Daylilies Roses Orchids Miniature Gardening Lilies Irises
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sandnsea2
Dec 30, 2011 2:22 PM CST
They do seem to grow very quickly! I think those were sown in June.
Name: tabby
denver, colorado zone 5
Charter ATP Member Clematis I was one of the first 300 contributors to the plant database! Daylilies Irises Plant and/or Seed Trader
Cat Lover Enjoys or suffers cold winters Region: Colorado Ponds Roses Sempervivums
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tabby
Dec 30, 2011 4:08 PM CST
I save winter sowing for things that need stratification, otherwise I just sow under lights. From what I've gathered, semp seeds seem to germinate well without stratification.

I've got some semps under the lights right now - I was surprised how much they colored up under the lights.
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
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valleylynn
Dec 30, 2011 4:55 PM CST

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Tabby, can you show us some photos of your semps under lights?

Janice, my seedlings have to be from seed self sown fall of last year. I found them in July before any of this years blooms matured and went to seed. So the seed must have gone through winter before germinating. Wonder how many I weeded out of the beds without knowing they were there? Sad
Name: Janice
Cape Cod, MA, USA (Zone 7a)
Charter ATP Member I was one of the first 300 contributors to the plant database! Cottage Gardener Garden Ideas: Master Level Sempervivums Tip Photographer
Daylilies Roses Orchids Miniature Gardening Lilies Irises
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sandnsea2
Dec 30, 2011 5:03 PM CST
That seed was sent to me by a friend in England so maybe there'll be varieties to grow on one's roof! Hilarious! Hilarious!
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 Celebrating Gardening: 2015 Plant and/or Seed Trader Garden Ideas: Master Level Sempervivums
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valleylynn
Dec 30, 2011 5:25 PM CST

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sandnsea2 said:That seed was sent to me by a friend in England so maybe there'll be varieties to grow on one's roof! Hilarious! Hilarious!


Rolling on the floor laughing Rolling on the floor laughing

Helen Payne had a long shed roof covered in semps and sedum. All she did was toss the excess plants up onto the roof. Thumbs up

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twitcher
Dec 30, 2011 11:52 PM CST
Tabby, While some semp seed will start without stratification, I recall a study that was published in the Sempervivum Society Journal that did demonstrate that germination was better after stratification. So keep you seed starting pots thru at least one winter outside, after you get the first ones to start under lights, etc. You should get more seedlings the next spring.
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 Celebrating Gardening: 2015 Plant and/or Seed Trader Garden Ideas: Master Level Sempervivums
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valleylynn
Dec 31, 2011 12:53 AM CST

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Good thing to know twit. Thanks, I didn't know that.
Name: Janice
Cape Cod, MA, USA (Zone 7a)
Charter ATP Member I was one of the first 300 contributors to the plant database! Cottage Gardener Garden Ideas: Master Level Sempervivums Tip Photographer
Daylilies Roses Orchids Miniature Gardening Lilies Irises
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sandnsea2
Dec 31, 2011 10:53 AM CST
Thanks, Twit...will try some now outdoors! Thumbs up
Name: tabby
denver, colorado zone 5
Charter ATP Member Clematis I was one of the first 300 contributors to the plant database! Daylilies Irises Plant and/or Seed Trader
Cat Lover Enjoys or suffers cold winters Region: Colorado Ponds Roses Sempervivums
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tabby
Dec 31, 2011 1:00 PM CST
If I had more seed, I'd try half outside and half inside. I took pictures of some of my indoor semps, but can't post them yet. We've lost power due to high winds (50 mph sustained winds with gusts higher) and I'm posting from my phone.
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 Celebrating Gardening: 2015 Plant and/or Seed Trader Garden Ideas: Master Level Sempervivums
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valleylynn
Dec 31, 2011 3:48 PM CST

Moderator

Hope the winds don't last long Tabby. Sure hope my SIL is okay. She lives in your area.

I am going to be extra vigilant when weeding the semp beds. I have a feeling I've been killing off many little seedlings without knowing it. *Blush*

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twitcher
Dec 31, 2011 5:32 PM CST
Lynn raises a good point, when we plant outside, we have to fight the weeds and probably get collateral losses. Might be pulling up tiny technicolor polka-dot semps and not realizing it. You could put the seeds in the produce compartment of the refrigerator for two months, then plant indoors as an alternative, then put the pot back in after the first batch of seedling stop coming. Just seal in a plastic bag for hygiene and sanitation. Green Grin!
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 Celebrating Gardening: 2015 Plant and/or Seed Trader Garden Ideas: Master Level Sempervivums
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valleylynn
Dec 31, 2011 6:12 PM CST

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I've been thinking about it twit. I am going to winter sow them in gallon milk jugs. Just set them outside for winter and let them do their thing. No weeds to worry about since the jugs only have small ventilation slits at the top of the jug.
Thumb of 2012-01-01/valleylynn/fe7d19
Name: tabby
denver, colorado zone 5
Charter ATP Member Clematis I was one of the first 300 contributors to the plant database! Daylilies Irises Plant and/or Seed Trader
Cat Lover Enjoys or suffers cold winters Region: Colorado Ponds Roses Sempervivums
Image
tabby
Dec 31, 2011 8:49 PM CST
When I winter sow/stratify, I usually plant seeds in flats in sterile soil and cover with those clear plastic dome lids, then set the flats on my back porch. Works well and the seeds don't blow away like they would if I direct sowed.

Aaarrrg, I still don't have power and the house is getting quite cold.
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 Celebrating Gardening: 2015 Plant and/or Seed Trader Garden Ideas: Master Level Sempervivums
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valleylynn
Dec 31, 2011 8:59 PM CST

Moderator

Oh no Tabby. You don't have any alternate heat? What is your outdoors temp like tonight? Can you use your stove top to provide some heat? Or is it electric? Sad

Your method method would work very well for winter sowing semp seeds. Thumbs up

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