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blue steel seeds

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

Exposure: Full sun

Bloom Period: Summer to frost

Attributes: Attracts Pollinators, Cut Flower, Drought Tolerant

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″

Special Care: For optimal germination, stratify sea holly seeds. Stratification is the process of subjecting seed to moist, cold treatment to break dormancy, which occurs naturally when seed is sown outdoors in fall. When starting seed indoors in spring, sow the seed into a container of moistened seed-starting mix, cover with clear plastic wrap, and leave the container in a refrigerator for 2 to 3 weeks, then move to a room temperature location to germinate. Keep soil evenly moist.

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.

PEROVSKIA atriplicifolia BLUE STEEL

A perennial first: Now you can grow high-quality, affordable Perovskia from professional-grade seed.

Blue Steel has higher and much more uniform germination than other seed varieties so you’ll grow top-notch plugs easily and efficiently.
No vernalisation or overwintering is needed, so production time is slashed. And grown beside leading vegetative varieties, you can’t see a difference.

Sturdy, controlled habit in the landscape is comparable to the vegetative leader.

Combines the best Summer-blooming lavender-blue colour with outstanding late-season garden performance.

Aromatic, silvery foliage carries clouds of small blue flowers on strong silver stems that do not break or split easily.

High flower show rate with 1 to 3 plugs per 1-gallon container or 3 to 5 per 2-gallon container.

It’s affordable to use multiple plugs in each pot and always finish with huge retail appeal.

Pinch for optimal branching.

Heat/drought tolerant, very hardy.

Staffelprijzen

Koop 100 zaden voor € 0,18 per stuk
Koop 1.000 zaden voor € 0,13 per stuk

A perennial first: Now you can grow high-quality, affordable Perovskia from professional-grade seed.

Blue Steel has higher and much more uniform germination than other seed varieties so you’ll grow top-notch plugs easily and efficiently.
No vernalisation or overwintering is needed, so production time is slashed. And grown beside leading vegetative varieties, you can’t see a difference.

Sturdy, controlled habit in the landscape is comparable to the vegetative leader.

Combines the best Summer-blooming lavender-blue colour with outstanding late-season garden performance.

Aromatic, silvery foliage carries clouds of small blue flowers on strong silver stems that do not break or split easily.

High flower show rate with 1 to 3 plugs per 1-gallon container or 3 to 5 per 2-gallon container.

It’s affordable to use multiple plugs in each pot and always finish with huge retail appeal.

Pinch for optimal branching.

Heat/drought tolerant, very hardy.

Blooming Season : Summer, Late Summer.

Plant Habit : Upright.

Height: First year, 18 to 24 in./46 to 61 cm; second year and on, 30 to 36 in./76 to 91 cm.

Spread: First year, 14 to 22 in./36 to 56 cm; second year and on, 20 to 38 in./51 to 97 cm.