Artichoke, French Artichoke, Globe Artichoke, Green Artichoke, Cynara scolymus
Cynara cardunculus (Scolymus Group), better known as Globe Artichoke, French Artichoke, or simply Artichoke, is a striking herbaceous perennial prized for its edible flower buds and bold architectural presence in the garden. Originally native to the Mediterranean, this thistle-like plant belongs to the daisy or sunflower family (Asteraceae), which includes other major edible plants such as lettuce, chicory, cardoon, sunflower, Jerusalem artichoke, safflower, dandelion, daisy, calendula, tarragon, and wormwood.
Globe artichokes are native to North Africa and Western Europe, but have been cultivated worldwide, especially in Mediterranean climates such as coastal California, where Castroville celebrates them as the Artichoke Capital of the World.
This edible perennial grows in a bold, upright clump with jagged, deeply lobed silver-green leaves, which can be up to 3 feet (90 cm) long.
Mature artichoke plants typically grow 3 to 5 feet (90–150 cm) tall and spread 2 to 3 feet (60–90 cm) wide. Their robust structure makes them a striking feature in both ornamental and edible gardens.
In warm climates (USDA zones 7–10), artichokes are perennial and can live for 4–6 years with proper care. In colder zones, they’re often grown as annuals or overwintered with protection.
Unopened flower buds are harvested for their tender hearts, while unharvested buds open into vivid, violet-blue blooms over 6 inches (15 cm) wide, stunning in borders and loved by pollinators. Each flower stalk can bear one large terminal bud and several smaller side buds.
If allowed to flower and mature, artichokes produce dry fruits called achenes, which are less than 1 inch long. Though not typically harvested for eating, they contain seeds that can be used for propagation.
The large, serrated, pinnatifid leaves form dramatic clumps. Their gray-green hue and bold texture add ornamental value even in vegetable gardens.
Globe Artichokes are hardy in USDA zones 7–10. They thrive best in regions with cool, mild winters and warm summers. In these climates, they grow as perennials, dying back in winter and resprouting in spring. They are not frost-tolerant and may be damaged or killed by prolonged freezing temperatures below about 10–15°F (-12 to -9°C). In colder zones, they can be grown as annuals or overwintered with heavy mulching and frost protection.
Globe artichoke flowers are rich in nectar and highly attractive to bees and butterflies, making this plant a valuable addition to wildlife-friendly landscapes. The large, seed-filled flower heads can be left to mature, providing food for birds like finches in fall and winter. Its dense foliage and sturdy stems offer shelter for beneficial insects and small wildlife.
Artichoke is generally considered deer and rabbits resistant, but not completely immune to browsing.
Artichokes have low poison severity and may cause contact dermatitis due to the compound cynaropicrin. Poisonous to humans (low severity).
Cynara cardunculus (Scolymus Group), commonly known as Globe Artichoke, is not regarded as invasive in North America or in most areas where it is grown for food or ornament.
However, its close relative, Cynara cardunculus, often referred to as cardoon or artichoke thistle, has become invasive in some parts of the world, including California, Australia, and South America. In these regions, it has escaped cultivation, spread into natural grasslands, and outcompeted native plants, creating ecological concerns.
Growing globe artichokes is a rewarding experience, whether you’re after the delicious edible buds or their dramatic ornamental value. Here’s how to give them what they need to thrive.
Globe artichokes need full sun to grow strong and produce large, flavorful buds. Choose a site that receives at least 6 to 8 hours of direct sunlight per day.
These plants thrive in fertile, well-draining soil enriched with compost or aged manure. Avoid heavy clay or compacted soils that hold too much moisture. A slightly alkaline to neutral pH is ideal.
Keep the soil consistently moist but not waterlogged. Water deeply during dry periods, especially when plants are forming buds. Established plants tolerate short dry spells, but regular watering improves yield.
Feed in early spring with a potassium-rich fertilizer to promote flower bud development. Throughout the growing season, apply a nitrogen-based fertilizer every 4 weeks to support leafy growth. Top-dress with compost or aged manure to maintain soil fertility.
Plant in late spring once the risk of frost has passed. You can start from seed indoors 6 to 8 weeks before the last frost and transplant outdoors once seedlings are about 12 inches (30 cm) tall. Alternatively, plant young potted starts or offsets from mature plants directly into the garden.
Artichokes are large, architectural plants. Space them 3 to 4 feet (90–120 cm) apart to give them room to grow and allow good airflow around the foliage.
Apply mulch in spring to conserve soil moisture, suppress weeds, and regulate soil temperature. In fall, mulch heavily over the crown in cold regions to protect against frost.
Cut back spent flower stalks and faded leaves in late fall. In cooler zones, leave some foliage over the crown as insulation. This helps the plant overwinter more successfully.
In USDA zones 7–10, a thick mulch is usually enough to protect plants in winter. In colder climates, cut back stems to 12 inches, cover the crown with straw, and use a breathable protective cover to keep it dry.
Picking globe artichokes at the right moment ensures the best flavor and tenderness. Here’s how to know when and how to harvest for top-quality results.
Artichokes are usually ready from late spring into summer, depending on your growing zone and variety. Keep an eye on the buds—harvest them when they are fully formed, firm, and tightly closed. The large central bud matures first, followed by smaller side buds.
Look for these signs:
– Buds are golf ball– to tennis ball–sized, depending on the type.
– The bracts (the outer scale-like structures) are packed tight and haven’t begun to open.
– The stem is green and flexible, not woody.
Don’t wait too long—if the bud begins to open or stretch upward, it becomes fibrous and loses its flavor.
Use clean, sharp pruners or a knife to remove the bud cleanly from the plant. Cut with about 1 to 8 inches (3–20 cm) of stem below the bud—longer stems are edible and easier to handle.
Cut just above a leaf node on the stalk. Start with the central main bud, then return to harvest the smaller buds on side shoots as they reach size.
In warm weather, buds can mature rapidly, so check your plants every few days during peak season.
Handle harvested artichokes carefully to avoid bruising. Store them in the refrigerator, preferably in a breathable bag in the crisper drawer. At 32°F (0°C), they’ll keep for up to 1–2 weeks.
Continue watering and feeding the plant after harvest. In mild climates, cutting back the old flower stalks may trigger a second, smaller crop later in the year.
– Pick early—don’t let buds open or bloom.
– Frequent harvesting encourages new buds.
– Don’t toss the stem—peel and cook it along with the bud for a delicious extra treat.
Cooking artichokes brings out their delicate, nutty flavor. The most common method is boiling or steaming, which softens the tough outer leaves and tenderizes the heart.
Eating an artichoke is a hands-on experience. The outer leaves, heart, and sometimes the stem are edible.
Propagating globe artichokes is a great way to expand your edible garden and maintain vigorous, productive plants. There are two main methods: from seed and by division.
Sow artichoke seeds indoors in late winter or early spring. Use seed trays or individual pots and plant seeds about ½ inch (1.25 cm) deep in a moist seed-starting mix. Keep them in a warm, bright place—germination takes 10–14 days. Once the seedlings have at least five true leaves and reach 12 inches (30 cm) tall, harden them off and transplant outdoors after the last frost. Seed-grown plants can vary in size and productivity, so save and divide only the best performers.
The most reliable method for propagating globe artichokes is by dividing mature clumps or planting offsets (suckers). Every 4–5 years, dig up the plant in early spring. Look for strong young shoots emerging from the base. Slice these offsets from the main crown with a clean knife, keeping a portion of the root attached.
Trim the leaves to about 6 inches (15 cm) long to reduce water loss, and plant the offsets immediately in rich, well-drained soil. Water well and mulch around the base to help them settle in. This method produces genetically identical plants and ensures strong, uniform crops.
– Seed: Indoors in late winter to early spring
– Offsets: In spring, once new growth appears on established plants
– Division: Every 4 to 5 years to rejuvenate aging plants and maintain productivity
Propagating artichokes regularly helps keep your plants healthy, prevents overcrowding, and guarantees a steady harvest of tender, delicious buds for seasons to come.
To prepare an artichoke, rinse it thoroughly under cold water. Trim about 1 inch off the top and snip the sharp tips from the outer leaves. Cut the stem to about 1 inch or remove it entirely. Rub cut surfaces with lemon to prevent browning. Artichokes can be steamed, boiled, roasted, or grilled depending on your recipe.
Yes, artichokes are highly nutritious. They are rich in dietary fiber, antioxidants, vitamin C, vitamin K, folate, and magnesium. Artichokes support digestive health, liver function, and heart health. They are low in calories and can be a healthy part of many diets.
Dogs can eat plain, cooked artichokes in small amounts. Serve them without seasoning, butter, or oil. Artichokes are high in fiber and antioxidants, but feeding too much can cause digestive upset. Always consult your vet before introducing new foods to your dog’s diet.
Boil whole artichokes in salted water for 20 to 45 minutes, depending on size. They are done when a leaf can be easily pulled off and the base is tender when pierced with a knife.
Steam whole artichokes for 30 to 45 minutes over simmering water. Time may vary based on size. The artichoke is ready when a leaf pulls away easily and the heart is tender.
Globe artichokes are typically in season from March to May, with a secondary, smaller crop in late summer to early fall. In warmer climates, they may be available nearly year-round.
Yes, the globe artichoke is considered a vegetable. It is the edible flower bud of a species in the thistle family (Asteraceae). Once the bud blooms, it becomes inedible due to tough, fibrous tissue.
The tender base of each leaf (bract) and the heart (plus the peeled stem on larger buds). Discard the fuzzy choke before eating the heart.
Globe artichoke is grown for its edible unopened flower buds; cardoon (C. cardunculus) is grown for its thick, blanched leaf stalks. Cardoon can be invasive in some regions; globe artichoke generally isn’t.
Perennial in USDA zones 7–10 (often productive 4–6 years). In colder zones, grow as an annual or lift/protect crowns over winter.
Full sun—aim for 6–8 hours of direct light daily for large, tight buds.
Deep, fertile, well-drained soil enriched with compost; slightly alkaline to neutral pH is ideal.
Keep soil evenly moist—deep waterings are best, especially during bud formation. Avoid waterlogging (root rot risk).
Space plants 3–4 ft (90–120 cm) apart to allow airflow and big rosettes.
Yes—use a large (15–20+ gal / 60–75+ L) pot with a high-drainage mix, regular feeding, and consistent moisture.
Typically late spring to summer; a smaller second flush may follow in late summer/early fall in mild climates.
Pick when buds are full, firm, and tightly closed. If bracts start to splay or the bud elongates, quality drops.
Use clean pruners and cut with 1–8 in (3–20 cm) of stem. Harvest the central (terminal) bud first; side buds follow.
Commonly 6–12 buds per plant in a season (variety, climate, and care can push this higher).
Usually late harvest, heat spikes, or irregular watering. Check plants every few days during peak season.
Remove winter mulch, cut out dead stalks, side-dress with compost, and resume regular watering/fertilizing.
After frost, cut stems to 12 in (30 cm), mound thick mulch/straw over the crown, and keep it relatively dry under a breathable cover.
‘Green Globe Improved’, ‘Imperial Star’ (good annual), ‘Tavor’, ‘Violetta/Italian Purple’, ‘Colorado Star’ (purple, annual-friendly).
Causes include insufficient sun, poor nutrition, young plants, water stress, or heat/bolt timing. Ensure full sun, steady moisture, and balanced feeding.
Aphids, slugs/snails, cutworms, artichoke plume moth, spider mites. Hand-pick, use traps/barriers, encourage predators, apply insecticidal soap or Bt/spinosad as needed.
Botrytis (gray mold), powdery mildew, rust, Verticillium wilt, root rot. Improve airflow, water at soil level, remove infected tissue, and rotate plantings.
Yes—the sap contains cynaropicrin, which may trigger contact dermatitis. Wear gloves when harvesting/pruning.
The edible buds are safe when prepared normally. Avoid ingesting tough foliage/choke and be mindful of sap irritation; keep pets from chewing plants.
Refrigerate unwashed in a breathable bag: up to 1–2 weeks. Cooked hearts keep 3–5 days refrigerated.
Rub cut surfaces with lemon or soak in acidulated water (lemon/vinegar) during prep.
Steam 30–45 min (size-dependent) until a leaf pulls free easily; or roast halves at 400°F / 200°C for 30–40 min after trimming and scooping the choke.
Start from seed (late winter/early spring) or divide offsets from mature plants every 4–5 years for uniform, vigorous crops.
Absolutely—if allowed to bloom, the large violet flowers are magnets for bees and butterflies.
Generally resistant, though hungry wildlife may sample tender growth—use barriers if browsing pressure is high.
Aromatics (rosemary, thyme), alliums, and shallow-rooted flowers that don’t crowd roots and help draw beneficial insects.
| Hardiness |
7 - 10 |
|---|---|
| Heat Zones |
1 - 9 |
| Plant Type | Perennials |
| Plant Family | Compositae |
| Common names | Artichoke, Globe Artichoke |
| Exposure | Full Sun |
| Season of Interest | Spring (Late), Summer (Early, Mid, Late), Fall |
| Height | 3' - 5' (90cm - 150cm) |
| Spread | 2' - 3' (60cm - 90cm) |
| Spacing | 36" - 48" (90cm - 120cm) |
| Maintenance | Low |
| Water Needs | Average |
| Soil Type | Chalk, Loam, Sand |
| Soil pH | Acid, Alkaline, Neutral |
| Soil Drainage | Well-Drained |
| Characteristics | Showy |
| Attracts | Bees, Butterflies |
| Garden Uses | Beds And Borders, Wall-Side Borders |
| Garden Styles | City and Courtyard, Gravel and Rock Garden, Informal and Cottage |
| Hardiness |
7 - 10 |
|---|---|
| Heat Zones |
1 - 9 |
| Plant Type | Perennials |
| Plant Family | Compositae |
| Common names | Artichoke, Globe Artichoke |
| Exposure | Full Sun |
| Season of Interest | Spring (Late), Summer (Early, Mid, Late), Fall |
| Height | 3' - 5' (90cm - 150cm) |
| Spread | 2' - 3' (60cm - 90cm) |
| Spacing | 36" - 48" (90cm - 120cm) |
| Maintenance | Low |
| Water Needs | Average |
| Soil Type | Chalk, Loam, Sand |
| Soil pH | Acid, Alkaline, Neutral |
| Soil Drainage | Well-Drained |
| Characteristics | Showy |
| Attracts | Bees, Butterflies |
| Garden Uses | Beds And Borders, Wall-Side Borders |
| Garden Styles | City and Courtyard, Gravel and Rock Garden, Informal and Cottage |
How many Cynara cardunculus Scolymus Group (Artichoke) do I need for my garden?
| Plant | Quantity | |
|---|---|---|
| Cynara cardunculus Scolymus Group (Artichoke) | N/A | Buy Plants |
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Becoming a contributing member of Gardenia is easy and can be done in just a few minutes. If you provide us with your name, email address and the payment of a modest $25 annual membership fee, you will become a full member, enabling you to design and save up to 25 of your garden design ideas.
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