When to plant cardoon
Half-hardy · light frost OKCardoonis keyed to your local frost dates. The offsets below hold anywhere — but the calendar dates they land on don’t. Enter your ZIP for dates tuned to your city’s nearest NOAA station.
Cardoon planting timeline
Half-hardy: tolerates a light frost but not a hard freeze — plant out around the last frost date.
Shop cardoon seeds →AFFILIATECardoon planting FAQ
When should I start cardoon seeds indoors?
Start cardoon indoors 8–10 weeks before the last spring frost, so seedlings are ready to plant out once the weather warms.
Can I direct sow cardoon?
Cardoon is usually started indoors and transplanted rather than direct sown, for a reliable stand.
How long does cardoon take to grow?
Cardoon takes about 120–150 days from transplanting to harvest, depending on the variety and conditions.
Is cardoon frost-hardy?
Half-hardy: tolerates a light frost but not a hard freeze — plant out around the last frost date.
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An email when it’s time to start seeds, transplant, and sow — timed to your frost dates. Double opt-in, one-click unsubscribe, no spam.
Other crops
155 morePlanting windows are offsets from your local 1991–2020 NOAA frost normals. How we compute this.