Jerusalem Artichoke

Jerusalem artichokes grow in well-drained soil around pH 6.0-7.5 and need only modest compost or fertilizer. Avoid heavy nitrogen, which favors tall tops, and choose a contained permanent site because missed tubers readily regrow and spread.

Sun

Full sun

Water

Water deeply during establishment; adjust to rainfall and soil

Spacing

18 in

First harvest

1 years

Tips

• Plant tubers 3-5 inches deep and 12-18 inches apart in a bed where spreading shoots can be controlled.
• During the establishment year, water regularly until vigorous growth begins and water deeply during prolonged drought.
• Avoid heavy nitrogen feeding and stake tall stems if wind exposure is likely to topple them.
• Watch for powdery mildew and remove unwanted shoots promptly rather than allowing the clump to expand.
• Begin digging after fall frost kills the tops, leaving some healthy tubers for future crops only where you want a permanent patch.

Plant firm, healthy tubers or tuber pieces with buds in early spring when the soil is workable.

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