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Globe artichoke

Cynara cardunculus

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Globe artichoke · Cynara cardunculus

A large herb with silvery cut leaves whose flower buds are picked before they open as a vegetable and whose leaves make tea; it suits cool climates such as Da Lat.

Care and placement

Needs full sun (PFAF: it cannot grow in shade), well-drained soil, and prefers moist soil with plenty of moisture in the growing season. It suits cool climates (USDA 5–9) but may need protection in cold winters; PFAF says wet winters cause more problems than cold ones. Wikipedia: it needs good soil, regular watering and feeding and frost protection; no source confirms it does well in Vietnam's hot humid plains, so treat it as a cool-climate plant such as Da Lat.

Draft mature dimensions

Maximum height (cm): 150 cm · Maximum spread (cm): 100 cm

Things to consider

PFAF warns it can cause allergic dermatitis from lactones, calls for caution with biliary obstruction and may hinder lactation. No toxicity rating exists for dogs, cats or young children, so it is not claimed safe. Wikipedia attributes health benefits to a medical source it does not summarise, so the folk-use information below is not evidence and does not replace medical advice.

Unknown evidence does not mean safe. Decorative plants are not automatically edible.

Information is compiled from multiple reputable sources for reference. If you spot an error, please contact us so we can check and update it.

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How to grow and care for it

  1. Planting and pot

    Choose a full-sun spot with deep, well-drained soil and some wind shelter. PFAF: it reaches about 1.5 m tall and 1 m wide; Wikipedia: 1.4–2 m tall with leaves 50–83 cm long and flower buds 8–15 cm across. It lives only a few years (Wikipedia), so plant new suckers each year.

  2. Light

    PFAF: needs full sun and cannot grow in shade. As a cool-climate plant, where it is hot all year it wants afternoon shade (our inference; the sources do not say).

  3. Watering

    PFAF: it prefers moist soil and needs plenty of moisture in the growing season; wet winters cause more problems than cold ones. Wikipedia: it needs regular watering. Water evenly when the top soil dries but make sure it drains, especially in the rainy season.

  4. Feeding

    Wikipedia: it needs regular feeding. The sources give no specific schedule; add well-rotted organic matter at planting and feed lightly to the label while it makes leaves and buds (general practice).

  5. Pruning

    The sources do not cover pruning. Remove old leaves and the stems that have borne buds after harvest (general practice; the sources do not say). PFAF: divide the suckers every three years.

  6. Propagation

    PFAF: sow seed in a greenhouse in early spring or in place in April, 2 cm deep with 2–3 seeds per spot and protected from mice; or divide suckers in March–April or November. Wikipedia: by division, root cuttings or micropropagation, and rooted suckers can be planted each year.

  7. Pests and common problems

    Wikipedia records the fungi Verticillium dahliae and Rhizoctonia solani; wet winters cause more problems than cold ones (PFAF). A bud left to open into a flower becomes coarse and barely edible. It is weaker in year-round hot humid weather (our inference from its cool-climate profile).

  8. For a bigger harvest

    Wikipedia: the edible part is the flower bud before it opens, cut leaving an inch or two of stem; once it blooms it is coarse and barely edible. PFAF: only the bract bases and the heart are eaten; the leaves make tea and PFAF records folk use for the liver and gallbladder (medicinal rating 5/5), while Wikipedia says artichoke tea is drunk in Vietnam, Romania and Mexico. That is folk information, not medical evidence.