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How to Grow Artichokes

Cynara scolymus

Perennial

Globe artichokes are statuesque perennials for full sun and deep, fertile, free-draining soil. Start from divisions or seed; plant out after frost. Keep evenly moist, especially during bud formation; mulch annually and divide every ~5 years to maintain vigor. Harvest tight, firm buds before the scales open; leave a few to feed pollinators if desired. Provide space (plants are large) and consider staking in windy sites.

Yearly Lifecycle

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JanFebMarAprMayJunJulAugSepOctNovDec
Bud Break Flowering Harvest Growing Leaf Fall

Care Essentials

Spring with a balanced fertiliser. Mulch generously with compost or well-rotted manure.

Watch For

  • Blackfly
  • Slugs
  • Petal blight

Companions

Sunflowers, Tarragon, Peas

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Care Requirements

☀️ Light

Full sun in a warm, sheltered spot

Full sun is essential for strong growth and good bud production. Choose a warm, sheltered position away from strong winds which can damage the large leaves.

🌿 Spacing

90-100cm apart; large plants need room

Allow 90-100cm between plants and 120cm between rows. Globe artichokes are large, architectural perennials that need significant space.

💧 Watering

Regular watering during bud formation

Water regularly during hot, dry spells, especially during bud formation when consistent moisture improves bud size and number. Avoid waterlogging in winter.

🌱 Fertilizing

Spring feed; generous compost mulch annually

Feed in spring with a balanced fertiliser. Mulch generously with compost or well-rotted manure. Top-dress with compost annually to maintain fertility.

✂️ Pruning

Cut back in autumn; keep 3-4 strong shoots

Cut back dead stems to ground level in late autumn. In spring, remove small, weak side shoots, keeping the three to four strongest per plant for the best heads.

🍎 Harvesting

Cut tight buds before scales open

Cut heads while still tight, before the scales begin to open. Take the main central head first, then side shoots will produce smaller secondary heads.

🍂 Mulching

Heavy autumn mulch for winter crown protection

Mulch crowns heavily in autumn with straw or dry leaves for winter protection. In cold areas, add a layer of fleece over the mulch.

❄️ Overwintering

Mulch and fleece crowns; replace every 4-5 years

Crowns are vulnerable to cold, wet winters. Mulch heavily with straw or dry leaves in autumn. In exposed or northern gardens, cover with fleece. Replace plants every four to five years with rooted offsets.

Growing Tips

Give them room

Allow 75–90 cm between plants; these are big perennials with deep roots.

Moisture at bud time

Regular watering during hot, dry spells improves bud size and number.

Mulch and feed

Top-dress with compost in spring and renew mulch to suppress weeds and steady moisture.

Renew clumps

Lift and divide mature clumps every few years, keeping the strongest offsets.

Harvest at the sweet spot

Cut buds while tight and heavy; once scales loosen, they become fibrous.

Pests & Diseases

Pest Blackfly (Black Bean Aphid)

Identification: Dense clusters of small black aphids on stems and around developing flower buds; sticky honeydew and sooty mould

Organic treatment:
  • Blast off with a strong jet of water
  • Spray with insecticidal soap or neem oil
  • Encourage ladybirds, lacewings, and hoverflies
Chemical treatment:
  • Spray with a contact insecticide containing pyrethrins
Pest Slugs and Snails

Identification: Irregular holes in young leaves and stems; slime trails visible on and around plants

Organic treatment:
  • Use beer traps or copper tape barriers
  • Apply organic slug pellets (ferric phosphate)
  • Encourage hedgehogs, frogs, and ground beetles
Chemical treatment:
  • Apply slug pellets containing ferric phosphate around plants
Pest Artichoke Plume Moth

Identification: Small caterpillars boring into the base of flower buds; frass visible at entry holes. Adult moths are distinctive with T-shaped wings

Organic treatment:
  • Inspect buds regularly and remove any containing larvae
  • Cut and destroy affected buds promptly
Chemical treatment:
  • Spray with a contact insecticide containing pyrethrins when adult moths are seen in late spring
Disease Petal Blight Itersonilia perplexans

Symptoms: Brown water-soaked spots on the outer scales of flower heads; spots enlarge and merge in wet weather, causing heads to rot

Treatment: Remove and destroy affected heads promptly. Avoid overhead watering

Prevention: Space plants well for good airflow. Water at the base rather than overhead. Remove affected heads immediately

Disease Crown Rot

Symptoms: Centre of the plant collapses; leaves yellow and wilt from the base. The crown becomes soft and mushy

Treatment: Dig up and destroy affected plants. Improve drainage before replanting in a new position

Prevention: Ensure excellent drainage, especially on heavy clay. Mulch crowns in winter but keep mulch off the crown centre

Popular Varieties

Green Globe, Imperial Star, Violetta di Chioggia, Purple of Romagna, Big Heart, Tavor

Spacing & Planting

Plant spacing 100 cm
Row spacing 120 cm
Mature height 150 cm
Mature spread 100 cm

These are large, architectural perennial plants that need significant space to develop.

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