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Steel Blue Sea Holly Seeds

Steel Blue Sea Holly Seeds

1232

4.7
Rated 4.7 out of 5 stars
12

Sea holly brings extraordinary architectural beauty to the garden by day, and wonderment at night as it reflects the silvery moonlight. It blooms profusely through the summer, attracting pollinators and providing garden interest in winter with long-standing blooms. Cut flowers are captivating in fresh or dry arrangements. This tough plant thrives in poor soil, heat, and drought, and even tolerates salty soil as found in coastal areas. Perennial in USDA zones 5–9. Deer and rabbit resistant.

$2.69
$2.69
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~0.4 g

(~320 seeds)

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  • Variety Info
  • Sowing Info
  • Growing Info
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Variety Info

Family: Apiaceae

Native: Europe and Asia

Hardiness: Perennial in USDA zones 5–9

Exposure: Full sun

Bloom Period: Summer to frost

Plant Dimensions: 24"–48" tall

Variety Info: ½"–1" flower heads made up of many tiny flowers start out green and turn to silvery-blue as the flowers open.

Attributes: Attracts Pollinators, Cut Flower, Drought Tolerant, Heat Tolerant, Deer Resistant, Rabbit Resistant

Non GMO Project

Sowing Info

When to Sow Outside: Sow in fall or late winter.

When to Start Inside: RECOMMENDED: 10 to 12 weeks before your average last frost date. Ideal soil temperature for germination is 70°–75°F.

Days to Emerge: 7–90 Days

Seed Depth: Press into surface

Seed Spacing: A group of 3 seeds every 18"–24"

Thinning: When 1" tall, thin to one every 18"–24"

Your hardiness zone is

Growing Info

Harvesting: For longest vase life, harvest in the morning and change vase water frequently. For Drying: Harvest flowers when they are green; they will resist turning brown over time.

4.7
Rated 4.7 out of 5 stars
Based on 12 reviews
Total 5 star reviews: 9 Total 4 star reviews: 2 Total 3 star reviews: 1 Total 2 star reviews: 0 Total 1 star reviews: 0
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12 reviews
  • Uyen T.
    Rated 5 out of 5 stars
    4/23/24
    5 Stars

    It only grew leaves the first year, then it bloomed the second year. Wow!

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  • Chris S.
    Rated 5 out of 5 stars
    3/1/24
    5 Stars

    These were last year’s Sea Holly Steel Blue. They are just starting to germinate. It took 6 days! I did place in zip bag and in fridge for a few weeks. They say that hat doesn’t work that way unless they are on soil, but I think it helped.

    They are doing well! Look forward to having this plant again!

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  • Ashley M.
    Rated 5 out of 5 stars
    7/21/23
    5 Stars

    Wow! These are amazing!!! They didn’t do much the first year, but I’ve been abundantly impressed on year two! They’re easily 4’ tall & just keep getting better & better.

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  • Joyce
    Verified Buyer
    Rated 5 out of 5 stars
    5/9/22
    5 Stars

    I started the seeds for the sea holly in early spring of 2021 and set out mid spring. The foliage grew nicely over the summer of 2021 and then in the very early spring of 2022, they plants began emerging. They grew and then bloomed in the summer of 2022. One big positive is that they attracted many types of pollinators, from tiny bees and other insects to the larger ones like butterflies and bumblebees. Only downside is that the brachts on them are sharp and thorny, much like a thistle, so would be best to place them in an area where the pollinators can find them but also away from direct traffic so you don't get scratched.

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  • Inge
    Verified Buyer
    Rated 5 out of 5 stars
    5/9/22
    5 Stars

    I was happy to see some of these blooming already as they were started in the spring.

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