Artichoke, globe artichoke
Fruits and Vegetables
Start seed indoors 2 months before last frost; may scarify in fridge 2 weeks prior to sowing 1/2" deep, warm, good light. Harden off and set out after last frost date, spacing plants 2' apart. Set in very rich well-draining soil, good sun. Cool temperatures 55-65F/13-18C ideal for growth; tolerates some frost. Divide healthy, high-yielding plants in spring using sharp spade, each section with a few healthy shoots and good healthy root system.
Mulch heavily with straw to overwinter, or dig the plants and store in a cool basement prior to replanting the next year. May be grown from purchased plants or bare-root specimens. Typically hardy to zone 7, though some new varieties (notably the new 'Northern Star') can survive temperatures well below freezing.
Some varieties may also be grown as annuals, though these tend to have lower yields, and may still require a longer growing season than is available in northern locales.
The Latin name Cynara cardunculus is sometimes applied to the globe artichoke but more properly belongs to the presumed wild parent plant and other derived cultivars, also known as cardoon or artichoke thistle. Cultivation is similar.
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