Photo by Melody

PlantFiles: Globe Artichoke
Cynara scolymus 'Green Globe'

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Family: Asteraceae (ass-ter-AY-see-ee) (Info)
Genus: Cynara (SIN-uh-ruh) (Info)
Species: scolymus (SKOL-ee-mus) (Info)
Cultivar: Green Globe

6 vendors have this plant for sale.

4 members have or want this plant for trade.

Category:
Vegetables

Height:
4-6 ft. (1.2-1.8 m)

Spacing:
4-6 ft. (1.2-1.8 m)

Hardiness:
USDA Zone 7a: to -17.7 C (0 F)
USDA Zone 7b: to -14.9 C (5 F)
USDA Zone 8a: to -12.2 C (10 F)
USDA Zone 8b: to -9.4 C (15 F)
USDA Zone 9a: to -6.6 C (20 F)
USDA Zone 9b: to -3.8 C (25 F)

Sun Exposure:
Full Sun

Danger:
Unknown - Tell us

Bloom Color:
Unknown - Tell us

Bloom Time:
Unknown - Tell us

Foliage:
Silver/Gray
Blue-Green

Other details:
Unknown - Tell us

Soil pH requirements:
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)

Patent Information:
Unknown - Tell us

Propagation Methods:
By dividing the rootball
Direct sow as soon as the ground can be worked
From seed; direct sow after last frost

Seed Collecting:
Properly cleaned, seed can be successfully stored

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Profile:

1 positive
2 neutrals
No negatives

Gardeners' Notes:

RatingAuthorContent
Positive lancer23 On May 1, 2014, lancer23 from San Francisco, CA wrote:

Got a baby plant from a person who said they have access to the real deal at Castroville, the commercial grower who supply the market. This generous old gardener is long gone; he was about 95 when he gave me a piece from his mother plant.
This plant have given me a bumper crop of artichoke every yr.
So easy to grow and it makes little plants next to it. It grows like a perennial no pest, except earwigs and spiders hidding inside the choke. All I do is water it in the summer and I get chokes to impress friends.

Neutral OldMcDeeDee On Jan 26, 2010, OldMcDeeDee from Burkesville, KY wrote:

Will cross with Cardoon.

Growing Artichoke
Native to the Mediterranean, growing artichokes (Cynara scolymus) requires cool nights and warm days. Aside from providing delicious, tender thistles for the table, the plants themselves are gorgeous! They grow to 5 feet across and almost as high with beautiful gray fuzzy foliage.

Site Preparation:
Each spring, mix compost into your growing area. Artichokes require sandy, fast draining soil and cool temperatures to thrive. They need regular water for an ample harvest, but if you just like the look of the plant and don't want the thistles for your table, they will survive on very little water. Artichokes are susceptible to freezing and do best where the temperature remains constant year round.

How to Plant:
Plant artichokes in a location in full sun from bare root stock in January or from container grown stock later in the spring. To grow artichokes in cold winter climates, protect the root with several inches of straw mulch or better yet, grow them in large containers and move to a protected location when the temperature drops. Fertilize (after you see greenery) with a small amount of all-purpose fish fertilizer. Micronutrients from seaweed extract can be beneficial also.

Harvesting:
Artichokes are ready to harvest when the heads are closed tightly and squeak slightly when squeezed. If you wait for them to open, they will be too tough to eat. Search the interior of the plant, the chokes hide in the foliage. Small artichokes can be eaten whole, without removing the inside spiny choke. Artichokes take at least 110-150 days to reach maturity, if planting from seed and 100 days from divisions. Most do not flower until the second year of growth.

Once the harvest is over, cut the plants back to 1-2 inches off the ground to try for a second harvest. New sprouts will form at the base of the plant. At the end of the season, allow the plant to dry out after the leaves begin to turn yellow. Once the foliage has died down and dried, remove it from the plant and put down a layer of organic compost to enrich the soil for next years crop.

Insects and Diseases:
Protection from earwigs is mandatory. Also, keep an eye out for aphids, caterpillars, slugs and snails. Use diatomaceous earth or other natural pest control method, if present.

Seed Saving Instructions:
Artichoke flower heads are cut when completely open and beginning to show their white seed plumes. Store the flower heads in a dry location away from direct sunlight until dry and brittle. Place one of the dry flower heads in a feed sack or canvas bag on a concrete surface. Pound the base of the blossom with a hammer and allow the down to float out of the bag. The seed is heavy and will remain behind, but should be removed from the bag after each flower is processed to avoid crushing.

Neutral berrygirl On Mar 14, 2007, berrygirl from Braselton, GA (Zone 7b) wrote:

Tasty; needs a fairly warm climate or grow as an annual.

Regional...

This plant has been said to grow in the following regions:

Ranburne, Alabama
Calistoga, California
San Francisco, California
Milledgeville, Georgia
Statesboro, Georgia
Las Vegas, Nevada
Roswell, New Mexico



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