Artichoke, Green Globe

Artichoke, Green Globe

Regular price
$4.00
Sale price
$4.00
Unit price
per 

Mature 75 days from transplant*
Annual in Zone 3-7
Perennial in Zones 7+
3-5 feet tall
Full Sun
Approx. 25 seeds per pack

 

This variety's roots can be traced back to Baltimore in 1825. This hardy variety of artichoke is productive even in climates as cool as zone 3 (as an annual) and has a perennial habit in zones 7+. It takes some work and a lot of patience to grow artichokes from seed, but it’s worth the effort.  When started indoors, they can be grown as annuals in colder climates. Read the growing instructions below for success. 


Growing Instructions

Artichokes require good soil, regular watering and feeding, plus frost protection in winter.

Timing
Start indoors in late winter, four to six weeks before the last frost date. Keep seedlings under bright lights. 
Artichokes are slow to germinate, so allow three to four weeks for the seeds to sprout. Warm temperatures in the range of 70 to 75 degrees F. (21 to 24 C.) and slightly moist soil improves germination. Once sprouted, keep the soil moist but not soggy. Artichokes are heavy feeders too, so it’s advisable to begin weekly applications with a diluted fertilizer solution (organic recommended). Once the seedlings are three to four weeks old, cull the weakest artichoke plants, leaving only one per pot.

*Growing as Annuals (Zones 3-7) : In hardiness zones 7 and colder, Green Globe artichoke plants can be grown as garden annuals. Start seedlings as directed above. It’s best to transplant artichoke seedlings into the garden after danger of frost, but don’t hold off too long. When the seedlings are ready for transplant into their beds, select a sunny location which has good drainage and rich, fertile soil. Green Globe artichoke plants prefer a soil pH between 6.5 to 7.5. When planting, space  artichoke plants a minimum of 4 feet (1.2 m.) apart.

To ensure blossoming the first year, artichokes need exposure to temperatures below 50 degrees F. (10 C.) for a minimum of 10 days to two weeks. If an unexpected late frost is in the forecast, be sure to use frost blankets or row covers to protect artichoke plants.

Green Globe artichokes also make excellent container plants, giving northern gardeners another option for growing artichokes. To grow a perennial potted artichoke, trim the plant 8 to 10 inches (20 to 25 cm.) above the soil line in the fall after harvesting is complete, but before freezing temperatures arrive. Store the pots indoors where winter temperatures remain above 25 degrees F. (-4 C.). Plants can be moved outdoors once frost-free spring weather has arrived.

Read more at Gardening Know How: Green Globe Improved Artichoke: Learn About Green Globe Artichoke Care https://www.gardeningknowhow.com/edible/vegetables/artichoke/green-globe-improved-artichoke.htm


Growing as Perennials: (i.e. Zone 7+)

When the seedlings are ready for transplant into perennial beds, select a sunny location which has good drainage and rich, fertile soil. Prior to planting, test the soil and amend if necessary. Green Globe artichoke plants prefer a soil pH between 6.5 to 7.5. When planting, space perennial artichoke plants a minimum of 4 feet (1.2 m.) apart. Green Globe artichoke care is fairly simple. Perennial plants do best with yearly applications of organic compost and a balanced fertilizer during the growing season. To overwinter in areas which receive frost, cut back artichoke plants to 15 cm (6" tall) and protect the crowns with a thick layer of mulch or straw to keep the root from freezing. Uncover in April. Offshoots of these plants should be set out in the spring, so that the older plants can be replaced after a few years. The Green Globe variety continues to be productive for five years or more.

Read more at Gardening Know How: Green Globe Improved Artichoke: Learn About Green Globe Artichoke Care https://www.gardeningknowhow.com/edible/vegetables/artichoke/green-globe-improved-artichoke.htm