When to plant

• Set out tubers about 1 week after your average last spring frost.
• Ready to harvest about 100 days after planting.

Dig and store tubers after frost blackens the foliage (zone 7 and colder).

Frost dates depend on where you live. Enter your ZIP code to get exact dates.

Dates by zone: 3a 3b 4a 4b 5a 5b 6a 6b 7a 7b 8a 8b 9a 9b 10a 10b

Growing basics

Not edible.

Harmful to pets. Mildly toxic to cats and dogs (upset stomach, skin irritation).

Sun

Full sun (6+ hours)

Spacing

18–24 in

Soil temperature

At least 60°F

Time to harvest

About 100 days

Containers

At least 3 gallons

Plant family

Lettuce and daisy family

Pests and problems

Grow it well

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