Green Globe Improved

Artichoke

Zone 2a Save Garden

Botanical illustration of Green Globe Improved

🌱 90d to harvest Clumping

Unfurling from tight, armor-like bracts, Green Globe Improved offers a richly vegetal, nutty-sweet flavor with a tender heart tha…

Crop Dates

Milestone	Date
Start Indoors	Mar 30th
Last Frost	May 25th
Transplant / Sow Outdoors	Jul 20th
Harvest Begins	Oct 18th
Harvest Ends	Aug 29th

Crop Details

Trait	Value
Days to Maturity	90
Sun Requirements	Full Sun
Growth Habit	Clumping
Support Needed	None
Planting Depth	Normal
Germination Temp (°F)	70
Min Soil Temp (°F)	50
Min Night Temp (°F)	40
Harden Off (days)	7

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Frequently Asked Questions

What pest or disease is most common on globe artichokes (Cynara scolymus) and how can I control it?

Watch for artichoke aphids and botrytis (gray mold) on tight bud heads, especially in cool, humid weather. Spray aphids directly with a strong jet of water and repeat every 2–3 days for a week, or use insecticidal soap if numbers remain high. To reduce botrytis, water at the soil line, keep leaves and bud areas dry, space plants for airflow, and remove any moldy leaves or buds promptly.

How often should I water Cynara scolymus during the main growing phase?

During active growth, keep the soil consistently moist but not waterlogged—about 1 inch of water per week, increasing during hot spells. Aim for deep watering 1–2 times weekly rather than daily light watering, and let the top 1–2 inches of soil dry slightly between waterings. Mulch helps maintain steady moisture around the crown, which improves bud development.

How do I tell when Cynara scolymus “Green Globe” is ready to harvest?

Harvest when the flower buds are firm and full-sized, with the bracts tight and still mostly closed—typically around 90 days from planting under good conditions. Cut the bud 3–5 inches below the bud base using sharp pruners; once bracts start opening and the purple thistle-like tips show, quality drops quickly. For best tenderness, harvest on dry mornings and repeat as new buds form after the first cut.

Unfurling from tight, armor-like bracts, Green Globe Improved offers a richly vegetal, nutty-sweet flavor with a tender heart that feels velvety at first bite. The globed heads are impressively uniform—deep green, firm, and heavy in the hand—making them a standout for roasting and steaming, as well as for showy sauces and preserves. Grow this classic 90-day performer for a steady harvest of globe-shaped artichokes that reward patience with bold, savory character.

Sowing Tips

Transplant Conditions

Wait until soil reaches 50°F and nights stay above 40°F before moving outdoors. Harden off for 7 days first.

Expert Note

Start indoors early (or direct sow where winters are mild) and transplant after the soil warms so young plants don’t stall before establishing a strong crown.