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Artichoke Planting Information

Artichokes

Cynara scolymus

 
Seed DepthSoil Temp. for GerminationDays to GerminationSunlight RequirementsPlanting Time
1/4 to 1/2"70 F to 80 F 10 to 21 daysFull Sun Spring/Fall
USDA Hardiness ZoneSeed SpacingRow SpacingSpace After ThinningDays to Harvest
7 - 11 3 to 4"36 - 48" 24 to 36"60 - 90 days
How to Grow Artichokes:

Artichokes do best in cool weather and are usually planted indoors and transplanted outdoors. They grow best in humid areas where temperatures remain below 50°F for extended periods. Start seeds indoors 6 to 8 weeks before setting outdoors. Plants require temperatures of 50°F to 70 F temperatures to induce budding. Spring planting should occur as soon as the soil can be worked and after the last frost, and fall planting should be done in September, October, and November for a spring harvest. When seedlings are 2" to 4" tall, transplant them into larger pots so roots can grow properly. Protect the plants from frost. Plants become less productive in the 5th and 6th year, and new plants should be grown. Plants can grow 3 to 5 ft tall.

Soil Requirements:

Requires fertile soil in a well-drained location in the garden. Apply mulch and grass clippings, or straw around the base of the plant.

Water Requirements:

Keep seedlings and transplants consistently moist. Water well during dry and hot spells.

Fertilizer Requirements:

Use RootBlast, Vegetable Alive, and Slow Release Fertilizer when transplanting outdoors. Periodically apply Miracle-Gro.

Harvest Tips:

Cut the edible flower buds when they are 3 to 4" in diameter. After harvesting, cut the plant back one-third to encourage new buds to form.


 

Frequently Asked Questions About Growing Artichokes

 

1. How long do artichoke seeds take to germinate?

Artichoke seeds typically take 10 to 21 days to germinate under suitable conditions. For best results, maintain soil temperatures between 70°F and 80°F and keep the soil consistently moist.

2. When is the best time to plant artichoke seeds?

Artichoke seeds are generally started indoors 6 to 8 weeks before transplanting outdoors. Planting time depends on your climate, local frost dates, and whether you are growing artichokes as annuals or perennials.

3. How much sunlight do artichoke plants need?

Artichokes grow best in full sun, ideally receiving at least 6 hours of direct sunlight daily. In hotter climates, some afternoon shade may help reduce heat stress.

4. What type of soil is best for growing artichokes?

Artichokes prefer fertile, well-drained soil rich in organic matter. Prepare the planting area with compost and ensure good drainage to support healthy root development.

5. How often should I water artichoke plants?

Water artichokes regularly to keep the soil evenly moist but not waterlogged. Plants may need more frequent watering during hot, dry weather.

6. How much space do artichoke plants need?

Allow approximately 24 to 36 inches between plants and 36 to 48 inches between rows. Adequate spacing improves airflow and gives mature plants room to grow.

7. How long does it take to harvest artichokes?

Harvest timing varies by variety and growing conditions. Artichokes may take several months to produce mature flower buds, and the first harvest can take longer when growing plants from seed.

8. When should artichokes be harvested?

Harvest artichoke buds while they are still tight and firm, before the scales begin to open. Cut the buds with a short section of stem using clean garden shears.

9. Can artichokes grow in containers?

Yes. Artichokes can grow in large containers with drainage holes, fertile potting mix, and plenty of sunlight. Choose a container large enough to accommodate the mature plant's extensive root system.

10. Are artichoke plants perennials?

Yes, artichokes are perennial plants in suitable climates, particularly USDA Hardiness Zones 7 to 11, depending on the variety and local conditions. In colder regions, winter protection or annual cultivation may be necessary.