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Can You Grow Onion in Maryland?

US · USDA Zone 7a · zones 6a, 6b, 7a, 7b

Grows well here

Onions grow well here — plant sets or transplants in early spring for a summer harvest.

Plant zones

2a–9b

Maryland last frost

early March

Maryland first frost

late November

Days to harvest

90–120 days

When to plant Onions in Maryland

Start indoors

Jan 10

Transplant

Mar 7

Harvest

Jun 5 – Jul 5

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

About Onion

Onions are a staple crop that stores well and can be grown as sets transplants or from seed.

Growing from sets is easiest for beginners. Plant in early spring — onions are frost-tolerant. Day-length sensitive — choose short-day long-day or day-neutral varieties based on your latitude.

Full onion growing guide →

Gardening in Maryland

Maryland has a humid subtropical climate moderated by the Chesapeake Bay. Four distinct seasons with mild winters in most of the state. Long productive growing season.

See what grows well in Maryland →

Frequently asked questions

Can you grow Onion in Maryland?

Onions grow well here — plant sets or transplants in early spring for a summer harvest.

What zone is Maryland?

Maryland spans USDA Zone 7a (6a, 6b, 7a, 7b).

When do you plant Onions in Maryland?

Plant Onions around early March (start indoors Jan 10), harvest Jun 5 – Jul 5.