Seeds forum→Heliotrope

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Name: Carly Rush
Oceanside, California. Sunset (Zone 10a)
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carlysuko
May 15, 2018 2:27 PM CST
I've tried twice to grow from seed and I haven't had any germination. I started in jiffy seed starting mix with some perlite mixed in for drainage. I sowed the seeds on top and did not cover but did keep them consistently moist. I did this two separate times and waited over a month with absolutely no germination. Do the seeds need to be extremely fresh like delphinium seeds? I keep all my seeds in the refrigerator. I bought the seeds in December of 2017. Oh and I watered the seed starting mix with a hydrogen peroxide mixture. Which has always helped my seedlings grow at a remarkable rate compared to not using it. I'm so frustrated! I really want to grow heliotrope from seed, I have never seen heliotrope in any nurseries around me.

If anyone has had success, please share!

Thank you,
Carly
Name: Caroline Scott
Calgary (Zone 4a)
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CarolineScott
May 16, 2018 5:58 AM CST
It sounds like you do everything to promote germination.
To me it sounds like the seeds were not as fresh as they might be ?
Name: Janine
NE Connecticut (Zone 6a)
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janinilulu
May 17, 2018 4:52 PM CST
Heliotrope seeds are notorious for their low germination rate. My suggestion is to sow a higher quantity of seeds than you normally would for the amount of plants you'd like to end up with.
Name: Carly Rush
Oceanside, California. Sunset (Zone 10a)
Birds Dahlias Cactus and Succulents Brugmansias Aroids Seed Starter
Salvias Roses Region: California Lover of wildlife (Raccoon badge) Hummingbirder Bee Lover
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carlysuko
May 21, 2018 12:13 PM CST
Ok I will try that, thank you Janine. 🙂
Name: Julia
Washington State (Zone 7a)
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springcolor
May 21, 2018 5:19 PM CST
I grow heliotrope every year. I do give them bottom heat at about 70 in my greenhouse that is heated at 65. I sow in March in a Nursery flat with a dome over it.
Thumb of 2018-05-21/springcolor/36677d

If you don't have this one of those plastic salad containers works. The dome helps keep the see moist.
I buy my seeds from Hazards Seeds, mini- marine variety. They do have a low germination rate as stated above.
These are mine this year.
Thumb of 2018-05-21/springcolor/cfefe6
I've never used hydrogen peroxide.

Sempervivum for Sale
Name: Carly Rush
Oceanside, California. Sunset (Zone 10a)
Birds Dahlias Cactus and Succulents Brugmansias Aroids Seed Starter
Salvias Roses Region: California Lover of wildlife (Raccoon badge) Hummingbirder Bee Lover
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carlysuko
May 22, 2018 9:11 PM CST
Julia, those look great! I'll try the dome and see if it helps. Thanks!
Name: Julia
Washington State (Zone 7a)
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I was one of the first 300 contributors to the plant database! Dog Lover Sempervivums Container Gardener Foliage Fan Greenhouse
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springcolor
May 22, 2018 9:45 PM CST
Might put the tray on the top of the refrigerator to get some bottom heat.
Sempervivum for Sale
Sonoma County, California, Zon
CaliforniaDreaming
Dec 19, 2020 8:59 PM CST
I just had six day germination with heliotrope seeds -- marine variety. It stunned me!

I bought them from a good online seed supplier. I planted them 1/8" deep in regular compost, in a plastic container with a plastic lid, with drainage holes punched on the bottom (from the supermarket, nothing fancy). Put them on a heat mat which has one temperature setting, under a cheap seedling starter light.

Yesterday, there were 25 heliotrope! I did not expect much success, and I also thought they would be a month or two before growing. Good thing they overwinter pretty well outside where I live, most years!

I took the lid off, they flopped over, so I propped it up with a pencil and today, a book, and I'm taking them off of the heat when they are a little bigger because they are tiny.

But these were super easy to propagate, and I do think it was the heat mat and light that helped, along with constant humidity. The seedlings are TINY, almost like foxgloves.
Name: Allison
NJ (Zone 6a)
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Onewish1
Dec 20, 2020 5:05 AM CST

Moderator

Good luck with them
Name: Karen
Cincinnati, Oh (Zone 6a)
I was one of the first 300 contributors to the plant database! Cut Flowers Winter Sowing Charter ATP Member Seed Starter Echinacea
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kqcrna
Dec 20, 2020 7:07 PM CST
Good luck. I've never grown them from seed.

Karen

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