Imperial Star Organic

Imperial Star Organic

SKU: AR103
These tall, hardy plants produce seven to eight highly uniform, nearly spineless buds in the first growing season. The buds are sweet and tender. Read More

Exposure Full-sun

Matures in 85-90 days

Season Cool season

Shipping & Returns

West Coast Seeds ships anywhere in North America. However, we are not able to ship garlic, potatoes, asparagus crowns, bulbs, onion sets, Mason bee cocoons, or nematodes outside of Canada. We regret, we cannot accept returns or damages for orders outside of Canada. The minimum shipping charge to the US is $6.99.

More details about Imperial Star Organic

CERTIFIED ORGANIC! These tall, hardy plants produce seven to eight highly uniform, nearly spineless buds in the first growing season. The buds are sweet and tender. Imperial Star Organic artichoke seeds are a great choice for the home gardener or for open field production. The plants grow 90-120cm (36-48") tall. This variety is sometimes listed under the name Tavor. It's a bit easier to get first-season harvests from Imperial Star than some of the other artichoke varieties, but it is also perennial, so it will produce for several years to come. The buds are a terrific mid-summer treat.

Matures in 85-90 days. (Open-pollinated seeds)

Quick Facts:

    • Sweet taste
    • Thornless, highly uniform
    • Cold hardy
    • Open-pollinated seeds
    • Matures in 85-90 days

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Imperial Star Organic

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All About Imperial Star Organic

Latin

Latin
Cynara cardunculus var. scolymus
Family: Asteraceae

Difficulty

Difficulty
Moderately challenging.

We Recommend:

We Recommend: Imperial Star (AR103). Harvesting artichokes in the first year of growth is a real benefit for growers. Imperial Star grows beautifully in an open field situation.

Season:

Season: Cool season
Exposure: Full sun
Zone: 6 (hardy in Zone 5 if you use mulch and cloche cover)

Timing

Timing
Start indoors in late winter, four to six weeks before the last frost date. Keep seedlings under bright lights.

Starting

Starting
Sow two seeds per pot, 5mm (¼”) deep. Keep moist in a warm place until seeds germinate in 10 to 21 days. Transplant seedlings into the garden 2 weeks after the last average frost date for your area. Artichokes need a cool period (250 hours — approximately 10 to 11 days) below 10°C (50°F) to induce flowering in the first year, but will not survive hard frost. Space plants 1m (3′) apart. Seeds can also be germinated between damp sheets of paper towel.

Days to Maturity

Days to Maturity
From transplant.

Growing

Growing
Ideal pH: 5.6-6.6. Select a sunny, sheltered location with well-draining soil. Dig in lots of compost or rotted manure and add 1/2 to 1 cup of complete organic fertilizer per plant. On the coast, with protective mulch, these plants may overwinter. Approximately two weeks before the last frost date (or if hard frost is forecast) cut the plants back to 15cm (6″) tall, and mulch well with straw, soil, leaves, or burlap, to keep the roots from freezing. Uncover after the last frost date.

Seed Info

Seed Info
In optimum conditions at least 70% of seeds will germinate. Usual seed life: 1 year.

How to Grow Artichoke

Step 1: Timing

Start indoors in late winter, four to six weeks before the last frost date. Keep seedlings under bright lights.

Step 2: Starting

Sow two seeds per pot, 5mm (¼”) deep. Keep moist in a warm place until seeds germinate in 10 to 21 days. Transplant seedlings into the garden 2 weeks after the last average frost date for your area. Artichokes need a cool period (250 hours — approximately 10 to 11 days) below 10°C (50°F) to induce flowering in the first year, but will not survive hard frost. Space plants 1m (3′) apart. Seeds can also be germinated between damp sheets of paper towel.

Step 3: Growing

Ideal pH: 5.6-6.6.

Select a sunny, sheltered location with well-draining soil. Dig in lots of compost or rotted manure and add 1/2 to 1 cup of complete organic fertilizer per plant. On the coast, with protective mulch, these plants may overwinter. Approximately two weeks before the last frost date (or if hard frost is forecast) cut the plants back to 15cm (6″) tall, and mulch well with straw, soil, leaves, or burlap, to keep the roots from freezing. Uncover after the last frost date.

Step 4: Germination

Days to maturity: From transplant.

In optimum conditions at least 70% of seeds will germinate. Usual seed life: 1 year.

Step 5: Harvest

Cut individual flowers before they start to open in late summer.

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