Artichoke
Cynara Cardunculus Scolymus
The globe artichoke, or Cynara cardunculus scolymus, is a unique perennial vegetable known for its edible flower buds. Native to the Mediterranean, it is prized for its culinary uses and ornamental beauty, making it a favorite among gardeners.
Everything it needs
9 essentials at a glance
Watering
Water the globe artichoke deeply once a week during the growing season, ensuring the soil is moist but not waterlogged.
In hot summer months, increase frequency to twice a week if the soil dries out quickly. Signs of over-watering include yellowing leaves and root rot, while under-watering may cause wilting and browning leaf edges.
Light
Globe artichokes thrive in full sun, requiring at least 6-8 hours of direct sunlight daily.
Ideal placement is in a south-facing garden bed or container. They can tolerate partial shade, but this may reduce flowering and yield.
Soil
The ideal soil for globe artichokes is well-draining, rich in organic matter, with a pH range of 6.0 to 7.0.
A recommended potting mix includes equal parts of compost, peat moss, and perlite to ensure good drainage and nutrient availability.
Humidity
Globe artichokes prefer moderate humidity levels of around 50-70%.
To increase humidity, mist the plants or place a tray of water nearby. Signs of humidity stress include leaf curling and browning tips.
Temperature
The ideal temperature range for globe artichokes is between 70-85°F (21-29°C).
They are hardy in USDA zones 7-10, tolerating light frost but struggling in extreme heat above 95°F (35°C) or prolonged freezing temperatures.
Fertilizing
Use a balanced fertilizer with an NPK ratio of 10-10-10 every 4-6 weeks during the growing season.
In fall, reduce feeding to once every 8 weeks. Signs of nutrient deficiency include stunted growth, yellowing leaves, and poor flowering.
Pruning
Prune globe artichokes in late winter or early spring before new growth begins.
Use sharp, clean pruning shears to remove dead or damaged leaves and to shape the plant. Deadheading spent flowers can encourage more blooms and improve overall appearance.
Repotting
Repot globe artichokes every 2-3 years or when the roots become pot-bound.
Choose a pot that is 1-2 inches larger in diameter than the current one. Signs that repotting is needed include roots growing out of the drainage holes and reduced growth. Carefully remove the plant, refresh the soil, and place it in the new pot.
Propagation
Globe artichokes can be propagated through division or seeds.
For division, dig up the plant in early spring, separate the crowns, and replant them in well-prepared soil. For seeds, sow them indoors 8-10 weeks before the last frost, transplanting seedlings outdoors after the danger of frost has passed.
When it's unhappy
Yellow leaves
Why it happens
Often caused by over-watering or nutrient deficiency.
How to fix it
Check soil moisture levels and adjust watering frequency. Fertilize with a balanced fertilizer if nutrient deficiency is suspected.
Root rot
Why it happens
Occurs due to poor drainage and over-watering.
How to fix it
Ensure proper drainage in pots and soil, and reduce watering frequency. If root rot is severe, consider repotting with fresh soil.
Wilting leaves
Why it happens
Can be a sign of under-watering or heat stress.
How to fix it
Increase watering frequency, especially during hot weather, and provide some afternoon shade if temperatures are excessively high.
Pests (aphids, snails)
Why it happens
Common pests that can infest globe artichokes, especially in warm, humid conditions.
How to fix it
Regularly inspect plants and use insecticidal soap or neem oil for aphids. Handpick snails and slugs or use bait traps.
Poor flowering
Why it happens
Can result from insufficient sunlight or nutrient deficiency.
How to fix it
Ensure the plant receives full sun and consider fertilizing to boost nutrient levels.
Care through the year
Spring
In spring, focus on fertilizing and watering as new growth begins. Prune any dead leaves and prepare for planting if starting from seeds.
Summer
During summer, ensure consistent watering, especially in hot weather. Mulch around the base to retain moisture and suppress weeds.
Fall
In fall, reduce watering as the plant prepares for dormancy. Continue to deadhead spent flowers to encourage more blooms before winter.
Winter
In winter, protect globe artichokes from extreme cold by mulching around the base. If in pots, consider moving them to a sheltered location.
Toxicity & Safety
Globe artichokes are generally non-toxic to pets and children. However, the leaves can be sharp and may cause minor irritation if ingested. Symptoms of ingestion include mild stomach upset.
Good to know
How often should I water my globe artichoke?
Water your globe artichoke deeply once a week, increasing to twice a week during hot weather. Ensure the soil remains moist but not soggy.
Why are my globe artichoke leaves turning yellow?
Yellow leaves can indicate over-watering or a lack of nutrients. Check the soil moisture and consider fertilizing if necessary.
What is the best soil for globe artichokes?
Globe artichokes thrive in well-draining soil rich in organic matter, with a pH between 6.0 and 7.0. A mix of compost, peat moss, and perlite works well.
When should I prune my globe artichoke?
Prune your globe artichoke in late winter or early spring before new growth appears. Remove any dead or damaged leaves to promote healthy growth.
How do I propagate globe artichokes?
You can propagate globe artichokes by division or seeds. For division, separate the crowns in early spring. For seeds, sow indoors 8-10 weeks before the last frost.
What pests affect globe artichokes?
Common pests include aphids and snails. Regular inspection and treatment with insecticidal soap or handpicking can help manage these pests.
What temperature do globe artichokes prefer?
Globe artichokes prefer temperatures between 70-85°F (21-29°C) and are hardy in USDA zones 7-10, tolerating light frost.
Grows well with
Track this plant in your garden.
Set care reminders, log growth, and join a community of plant lovers.