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Maryland Planting Guide & Growing Season

Maryland is in USDA hardiness zone with a growing season of 195 days. The average last spring frost is Mar 30 - Apr 30 and the average first fall frost is Oct 10 - Nov 10.

USDA Zone Hardiness zone
Last Frost Mar 30 - Apr 30 Average spring
First Frost Oct 10 - Nov 10 Average fall
Growing Season 195 days Moderate season

Growing Conditions in Maryland

USDA Hardiness Zone
Average Last FrostMar 30 - Apr 30
Average First FrostOct 10 - Nov 10
Growing Season Length195 days

How Maryland Compares

Compare Maryland's growing conditions with states that have similar climates.

StateUSDA ZoneLast FrostFirst FrostSeason (days)
Maryland (MD) Mar 30 - Apr 30Oct 10 - Nov 10195
Alabama (AL) Mar 1 - Apr 1Oct 25 - Nov 15220
Alaska (AK) May 15 - Jun 15Aug 15 - Sep 15105
Arizona (AZ) Feb 1 - Apr 15Oct 15 - Dec 15270
Arkansas (AR) Mar 15 - Apr 15Oct 15 - Nov 1210
California (CA) Jan 15 - Apr 15Oct 15 - Dec 31290

Frequently Asked Questions About Gardening in Maryland

When should I start seeds indoors in Maryland?

In Maryland, the average last frost date is Mar 30 - Apr 30. Start most seeds indoors 6-8 weeks before this date. The USDA hardiness zone for Maryland is undefined, with a growing season of approximately 195 days.

What USDA hardiness zone is Maryland?

Maryland falls in USDA hardiness zones undefined. This affects which perennial plants will survive winter and influences optimal planting times.

When is the first frost in Maryland?

The average first frost date in Maryland is Oct 10 - Nov 10. Plan to harvest cold-sensitive crops before this date or protect them with row covers.

How long is the growing season in Maryland?

Maryland has an average growing season of 195 days, from the last frost (Mar 30 - Apr 30) to first frost (Oct 10 - Nov 10). This moderate season works well for most common vegetables.

Plan Your Garden

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