Silky Formula Mix
Asclepias Seed
Product ID: 1641
Bred for greenhouse and field production.
Mix consists of Gold and Scarlet. Prefers warm, dry conditions. Attracts butterflies. Also known as milkweed, butterfly weed, blood flower, and sunset flower. Tender perennial in Zones 7-10. Ht. 28-40". Avg. 10,500 seeds/oz. Packet: 50 seeds.
https://www.johnnyseeds.com/flowers/asclepias-butterfly-weed/silky-formula-mix-asclepias-seed-1641.11.html
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- This product does not ship to the following states: HI.
DAYS TO GERMINATION: 14-21 days at 65-70°F (18-21°C)
SOWING: Transplant (recommended) - Sow 10-12 weeks before last frost. Sow 1/4" deep into a seed starting mix. Begins taproot growth upon germination. Do not allow to become pot bound at any time as plants will deteriorate rapidly. Transplant into larger cell packs or 3-4" pots 3-5 weeks after sowing. Harden off and transplant outdoors after the last frost. Direct seed - Can be direct sown in the fall or spring.
LIGHT PREFERENCE: Sun.
PLANT HEIGHT: Varies.
PLANT SPACING: 12-24".
HARDINESS ZONES: Varies.
HARVEST: 1/2 to 2/3 of flowers are open. If stems wilt after harvest, rehydrate in water for 24 hours. CAUTION: Milky sap may cause eye and skin irritation.
SOIL: Well-drained, sandy loam to poor soil.
USES: Cut flower. Borders, containers, and butterfly gardens.
SCIENTIFIC NAME: Asclepias spp.
SOWING: Transplant (recommended) - Sow 10-12 weeks before last frost. Sow 1/4" deep into a seed starting mix. Begins taproot growth upon germination. Do not allow to become pot bound at any time as plants will deteriorate rapidly. Transplant into larger cell packs or 3-4" pots 3-5 weeks after sowing. Harden off and transplant outdoors after the last frost. Direct seed - Can be direct sown in the fall or spring.
LIGHT PREFERENCE: Sun.
PLANT HEIGHT: Varies.
PLANT SPACING: 12-24".
HARDINESS ZONES: Varies.
HARVEST: 1/2 to 2/3 of flowers are open. If stems wilt after harvest, rehydrate in water for 24 hours. CAUTION: Milky sap may cause eye and skin irritation.
SOIL: Well-drained, sandy loam to poor soil.
USES: Cut flower. Borders, containers, and butterfly gardens.
SCIENTIFIC NAME: Asclepias spp.
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Quick Facts
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Latin Name
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Asclepias curassavica
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Days To Maturity
Average number of days from seeding date to harvest, within a specific crop group. If a transplanted crop: average number of days from transplant date. Not sure if crop is direct-seeded or transplanted? Check the Growing Information box for details. If crop can be both direct-seeded or transplanted, days to maturity refers to direct seeding. Days to maturity for all flowers and herbs is calculated from seeding date. -
90 Days
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Life Cycle
Plants can be Annuals (single growing season), Perennials (grow year after year), Tender Perennials (grow year after year in warmer climates; and in some cases when given special protection in colder climates), or Biennials (require two years to mature). -
Tender Perennial
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Hybrid Status
Hybrid: The offspring of a cross between two or more distinct parent lines, usually of same species, and selected for improved traits.
Open-pollinated: A non-hybrid variety that can reproduce itself in kind, demonstrating relatively stable traits from one generation to the next. -
Open Pollinated
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Product Features
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Use for Cut Flowers and Bouquets
- Variety good for fresh cut-flower displays.
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Greenhouse Performer
- Variety that we have found, based on our trials, to be the best performers in a climate-controlled greenhouse environment.
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Grows Well in Containers
- Variety does well when grown in a container.
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Attracts Beneficial Insects
- Variety attracts and supports pollinators and/or insects that prey on garden pests.
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