Plant guide
Globe Artichoke.
Cynara cardunculus
Pronounced sin-AR-uh kar-DUN-kyoo-lus
Also known as Cardoon, Globe Artichoke, Artichoke thistle, Scottish thistle, Spanish artichoke, Wild Cardoon
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The globe artichoke is a striking perennial thistle that produces delicious edible flower buds. It adds a dramatic architectural flair to any garden with its large, silvery foliage. You will love watching these unique plants develop their signature harvestable hearts.
At a glance
- Care level
- Moderate
- Plant type
- Perennial vegetable
- Light
- Full sun
- Indoor light
- Direct sun
- Water
- Every 3 to 7 days
- Mature size
- 5 feet tall and wide
- Growth rate
- Fast
- Hardiness
- USDA 7 to 10
- Bloom time
- Mid to late summer
Care
Plant in deep, fertile soil and ensure it has plenty of space to spread out. Watch for aphids on the undersides of leaves and keep the soil consistently moist during the growing season. If the leaves start to yellow, it might be a sign of poor drainage or nutrient deficiency.
- Watering
- Keep the soil consistently moist but never waterlogged to encourage healthy bud development.
- Feeding
- Apply a balanced organic fertilizer monthly during the active growing season.
- Pruning
- Cut back the main stalk to the ground after the final harvest to encourage new growth.
- Repotting
- If growing in a container, move to a larger pot every year or two as the root system is quite extensive.
- Soil
- Rich, well draining loam
- Soil pH
- 6.5 to 7.5
- Temperature
- -10 to 35°C
- Humidity
- 40 to 70%
- Drought tolerance
- High
- Lifespan
- Perennial, typically 5 to 10 years
- Fragrance
- Light
- Deer and rabbits
- High
Signs it needs repotting
- Roots growing out of the drainage holes
- Stunted growth during the active season
- Soil drying out too quickly
Safety
- People
- The plant is generally non-toxic, though some people may experience contact dermatitis from the stiff hairs on the leaves.
- Children
- The sharp spines on the leaves and stems pose a physical injury risk to small children.
- Contact allergens
- The sharp spines and coarse hairs on the leaves can cause skin irritation upon handling.
- Airborne allergens
- The pollen can trigger mild reactions in sensitive individuals during the peak flowering season.
- Edibility
- The flower buds and leaf stalks are edible when prepared correctly, but ensure you are not harvesting from areas treated with pesticides.
How to identify it
- Large, deeply lobed silvery green leaves
- Thistle like purple flower heads
- Sturdy, upright central flowering stalks
- Spiny bracts surrounding the edible heart
- Height
- 1.2 to 1.8m
- Spread
- 0.9 to 1.2m
- Leaves
- silvery-green, gray-green, semi-evergreen
- Flowers
- purple, blue-violet, 7 to 12cm
- Fruit
- brown, Late summer
Problems to watch for
- AphidsCommon
- Root RotCommon
- Slugs and SnailsCommon
- Powdery MildewUncommon
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Growing it
- Propagation
- seed, division
- When to plant
- spring, early autumn
- Overwintering
- In colder climates, cut back the foliage after the first frost and mulch the crown heavily to protect it from freezing temperatures.
- In containers
- It can grow in large containers, but requires a pot at least 50 centimeters deep to accommodate its long taproot.
Seed
- 1. Sow seeds indoors in late winter.
- 2. Use deep pots to accommodate the taproot.
- 3. Transplant outdoors after the last frost.
Division
- 1. Dig up the plant in early spring.
- 2. Separate the offsets from the main crown.
- 3. Replant immediately in well-drained soil.
Plant cardoons as a dramatic centerpiece in a Mediterranean-style border with low-growing herbs.
Grows well with
Similar species
- Globe Artichoke · It is a close relative selected specifically for its large, edible flower buds.
Science
- Family
- Asteraceae
- Genus
- Cynara
- Order
- Asterales
- Class
- Magnoliopsida
- Native range
- Mediterranean region
- Conservation
- This species is not of conservation concern and is considered invasive in some Mediterranean-climate regions outside its native range.
It thrives in sunny, well-drained slopes where its deep taproot helps it access moisture during dry summers.
- Value to wildlife
- nectar source
- Pollinators
- bees, butterflies
- Uses
- ornamental focal point, culinary vegetable, dried flower arrangements
Through the year
Ecological indicators
- Salinity
- 3/9
- Soil reaction
- 7/9
- Light
- 8/9
- Temperature
- 7/9
- Moisture
- 4/9
- Nutrients
- 6/9
Taxonomy resolved against GBIF.
Questions people ask
- Is the cardoon the same as an artichoke?
- They are the same species, but the cardoon is bred for its stalks and leaves, while the artichoke is bred for its flower buds.
- How do I prepare cardoon for eating?
- The stalks must be blanched to reduce bitterness and then boiled or braised until tender.
Where the name comes from
The name Cynara comes from the Greek word for dog, referring to the spiny, tooth-like bracts of the flower head.
Good to know
- Cardoons have been cultivated since ancient Roman times.
- The plant is a staple ingredient in traditional Italian and Spanish winter dishes.
- Its dramatic, thistle-like flowers are highly attractive to pollinators.
- The leaves can reach up to 1 meter in length.
Also in
Keep your globe artichoke growing
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This guide was generated with AI on and checked against GBIF taxonomy. It is general information, not horticultural or veterinary advice. Read about how we build these guides.
