Imperial Star
Artichoke Seed
Product ID: 2120
Early green annual for summer harvests.
A green artichoke specifically bred for annual production, Imperial Star will produce well-developed artichokes the first year from seed. Plants become 1 1/2–3' tall and have an open growth habit. Each typically produces 1–2 primary buds, which average 3–4" in diameter, and 5–7 smaller secondary buds. Perennial in Zone 7 and warmer; otherwise treat as an annual. Avg. 10,500 seeds/lb. Packet: 25 seeds.
https://www.johnnyseeds.com/vegetables/artichokes/imperial-star-artichoke-seed-2120.11.html
Size
Price
Quantity
Availability
10,000 Seeds
$487.40
Out of Stock
SCIENTIFIC NAME: Cynara cardunculus var. scolymus
CULTURE: Artichokes require very fertile, well-drained soils with a pH of 6.5–8.0. Sow artichokes indoors 8–12 weeks before last spring frost date. Sow 2–3 seeds per cell in 50-cell trays or individual containers ¼" deep. Germinate at 70–80°F (21–26°C). Thin to one plant per cell or container and grow at 60–70°F (15–21°C) day and 50–60°F (10–15°C) night. Transplant 6- to 12-week-old plants to the field 2–3' apart in rows 3–6' apart.
MILD AREAS: Where winter low is above 14°F (-10°C), sow seeds in fall, harvest in spring. Perennial in Zone 7 and warmer; otherwise treat as an annual.
IMPORTANT COLD TREATMENT (VERNALIZATION): If treating as an annual, time transplanting so plants receive a minimum of 10 days of 45–50°F (7.2–10°C) temperatures to induce budding. Protect from frost.
HARVEST: Clip mature buds midsummer to midfall, depending on location.
SEED SPECS: SEEDS/LB.: Avg. 11,500.
DAYS TO MATURITY: From transplant.
PACKET: 25 seeds, unless otherwise noted.
CULTURE: Artichokes require very fertile, well-drained soils with a pH of 6.5–8.0. Sow artichokes indoors 8–12 weeks before last spring frost date. Sow 2–3 seeds per cell in 50-cell trays or individual containers ¼" deep. Germinate at 70–80°F (21–26°C). Thin to one plant per cell or container and grow at 60–70°F (15–21°C) day and 50–60°F (10–15°C) night. Transplant 6- to 12-week-old plants to the field 2–3' apart in rows 3–6' apart.
MILD AREAS: Where winter low is above 14°F (-10°C), sow seeds in fall, harvest in spring. Perennial in Zone 7 and warmer; otherwise treat as an annual.
IMPORTANT COLD TREATMENT (VERNALIZATION): If treating as an annual, time transplanting so plants receive a minimum of 10 days of 45–50°F (7.2–10°C) temperatures to induce budding. Protect from frost.
HARVEST: Clip mature buds midsummer to midfall, depending on location.
SEED SPECS: SEEDS/LB.: Avg. 11,500.
DAYS TO MATURITY: From transplant.
PACKET: 25 seeds, unless otherwise noted.
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Quick Facts
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Latin Name
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Cynara cardunculus var. scolymus
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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. -
85 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). -
Annual
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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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Ideal for Drying and Crafts
- Variety is excellent for creating dried flowers.
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