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Maryland · Local Gardening
Frost dates, planting zones, soil types, and what actually thrives in Maryland — from mountains to coast.
Frost dates & zones
Maryland spans USDA zones 5b (Garrett County mountains) to 8a (Lower Eastern Shore). Verify your exact zone and frost dates with your county Extension office — elevation and microclimates create real variation.
Hardiness Zones
5b (Garrett County mountains) to 8a (Lower Eastern Shore)
Last frost: varies by region. First frost: varies by region.
Look up your exact zone by ZIP at USDA →What grows well here
Eastern Shore sand needs compost and regular fertilizer. Piedmont clay needs compost and gypsum. Western MD mountain soils need lime and organic matter. UMD Extension soil testing is available through county offices.
Know your soil
Maryland soils split east-west. The Eastern Shore has sandy, acidic Coastal Plain soils that drain fast. The Piedmont west of the Bay has clay loam that needs organic amendment. Western Maryland has rocky mountain soils that are thin and acidic. The DC suburbs have a mix of dense clay and disturbed urban soils.
Map your soil type with USDA Web Soil Survey →Free soil testing
Free or low-cost soil testing available through your county Extension office
Results include specific lime and fertilizer recommendations
Most states offer testing April through fall — fees apply in winter
Results typically returned within 10 business days
Next steps
Preserve what you grow
Maryland Extension offers food preservation workshops — and NWS has the full canning guides.
Food IndependenceGet the checklist
Spring prep, frost protection, soil test timing, and compost setup — timed to regional frost dates.
MD Checklists