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Artichoke 'Green Globe Improved' & 'Purple of Romagna'

Product Description

Grow artichokes anywhere, even in northern gardens. 'Green Globe Improved' is a short-season variety and 'Purple of Romagna' is a coveted, Italian heirloom. Provide plenty of room and fertile soil and you'll be rewarded with 3 to 5 fresh, delicious artichokes per plant. Bees love the flowers! Perennial in USDA zones 7-10 or bring indoors over winter. In cold climates, can be grown as an annual.

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Botanical Name: Cynara scolymus

Days to Maturity: 150–240 days

Family: Asteraceae Native: Mediterranean region

Hardiness: Frost-tolerant perennial in USDA zones 7-10

Plant Dimensions: 'GREEN GLOBE IMPROVED': 5' tall, 4'–8' wide.

'PURPLE OF ROMAGNA': 6' tall, 4'–8' wide.

Variety Information: 'GREEN GLOBE IMPROVED': Dark green with slightly purple base. Heavy bearing. Very few spines.

'PURPLE OF ROMAGNA': Italian heirloom. More tender and spiny. Smaller buds with oblong shape. Varies from green tinged with purple to mostly purple with green tips.

When to Sow Outside:

Cold Climates: Not recommended.

Mild Climates: Sow in fall for harvest the following spring.

When to Start Inside: RECOMMENDED. Cold Climates: Sow in 4" pots 12 weeks before your average last spring frost date. Transplant outside 4 weeks before your average last frost date. Ideal soil temperature for germination is 70°–80°F. Protect from frost.

Mild Climates: Sow in 4" pots in early fall. Transplant outdoors 6 weeks before your average first frost date. Sow in biodegradable pots to avoid tap root disturbance.

Days to Emerge: 14 days

Seed Depth: ⅛"–¼"

Seed Spacing: A group of 3 seeds every 4'

Row Spacing: 6'

Thinning: Thin to 1 every 4'

Harvesting: For eating, harvest buds when they are still tightly closed, just before they begin to open (opened heads are tough). Cut the central bud first by cutting the stem with a sharp knife 2" below the bud. After harvesting, side shoots will produce smaller harvestable buds (a unique delicacy!).

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