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Can You Grow Collard Greens in Pennsylvania?

US · USDA Zone 6a · zones 5a, 5b, 6a, 6b

Grows well here

Collards are well-suited to your zone — they handle summer heat and frost alike.

Plant zones

5a–11b

Pennsylvania last frost

early April

Pennsylvania first frost

late October

Days to harvest

60–80 days

When to plant Collard Greenses in Pennsylvania

Start indoors

Mar 3

Transplant

Apr 1

Harvest

May 31 – Jun 20

Dates are approximate, based on Pennsylvania's average frost dates. Your exact yard may vary by microclimate.

About Collard Greens

Collard greens are a Southern staple — extremely hardy, tolerating both frost and summer heat better than most brassicas. Rich in nutrients and one of the most productive greens per square foot.

Start indoors 4-6 weeks before last frost or direct sow. Harvest lower leaves as needed. Plants withstand hard frosts — flavor improves after cold snaps. In warm zones, grow as a fall/winter crop.

Full collard greens growing guide →

Gardening in Pennsylvania

Pennsylvania has a humid continental climate. Philadelphia is Zone 7a; Pittsburgh is Zone 6a; northern Pennsylvania is Zone 5a-5b. Four distinct seasons with a 6-7 month growing window.