When to plant

• Set out roots about 2 weeks before your average last spring frost.

Bare roots are best planted in fall. Set the eyes no more than 2 in deep or it won't bloom. Lives for decades.

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; it can upset their stomachs.

Sun

Full sun (6+ hours)

Spacing

3–4 ft

Soil temperature

At least 45°F

Plant family

Other

Pests and problems

Grow it well

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