Cardoon Growing Guide
Cardoon is a great next step in your growing journey. Follow this guide from planting to harvest and you'll do great.
At a Glance
Difficulty
Moderate
Category
Vegetable
Sun Exposure
Full Sun
Frost Tolerance
Frost Tender
Cold Hardiness
Survives to -12°C
Plant Family
Asteraceae
Growing Season
Warm Season
Plant Lifecycle
Perennial
Also grows well as
How to Start It
★ Recommended for beginners
Sow indoors 8 weeks before last frost, pot on, and plant out after frost, 90 cm apart in very rich soil. It needs the full season to size up.
A close relative of the globe artichoke, but grown for its blanched leaf stalks, not the flower bud. It's a huge, dramatic, silver-leaved plant — give it space. Tender below about zone 7, so usually grown as an annual or lifted for winter.
When To Start
First Chance to Plant
—
Last Chance to Plant
—
When should you plant Cardoon?
Your planting dates depend on your local climate. Sign up and add your location to unlock personalized dates.
Your Cardoon Planting Window
Start planting
May 15, 2026
Last chance
Sep 10, 2026
The Journey Ahead
Cardoon's Lifecycle
Seedling
Mature Plant
Seed Production
Step 1
Prepare Your Space
1.5 cm
Seeding Depth
90 cm
Plant Spacing
120 cm
Row Spacing
Vertical Growing
No.
Succession Planting
No.
Good Companions
Bad Companions
Step 2
Planting & Sprouting
Expect sprouts in 10–20 days
Growing Tips
- 1Cardoon is half ornamental, half vegetable — give it room, sun and very rich, moist soil.
- 2Blanch the stalks in autumn for the best flavour.
- 3In cold zones treat it as an annual or mulch the crown heavily.
Seedling Phase
Step 3
Growth & Maturity
~120
Days to Maturity
180 cm
Mature Height
120 cm
Mature Width
Pests to Watch For
Diseases to Watch For
Mature Plant
Step 4
Harvesting
Harvest Window
30 days
When to Pick
Blanch the stalks for ~3 weeks in autumn, then cut before hard frost
How to Harvest
- 1About 3 weeks before harvest, bundle the leaf stalks together and wrap them to blanch (whiten and sweeten) them.
- 2Then cut the plant at the base, trim off the leaves, and use the tender inner stalks.
Step 5
Saving Seeds
How to Save Seeds
Let a flower head mature and dry, then collect the thistle-down seed. Often grown as an annual in cold zones.
Seed Production
Ready to grow this?
Get started with Limitless Growth.
Save this guide, see exactly when to plant cardoon where you grow, and start the 5-step course we wrote for first-time growers.
Get started →
