🌽 Can I Plant Corn in Baltimore, MD?

2026 planting guide for Zone 7b · Last frost ~March 28 · Growing season ~230 days

✅ YES — Conditions look good

Temperature conditions are suitable for Corn.

Planting window: Aug 13 – Aug 27
Good to go — plant now while conditions are right.
Live result based on current forecast for Baltimore, MD · Updates every 6 hours
USDA Zone
7b
Last Spring Frost
~March 28
First Fall Frost
November 13
Growing Season
~230 days
Ideal Temp for Corn
65–95°F
Frost Risk
⚠️ Sensitive

Growing Corn in Baltimore

Baltimore's Zone 7b Mid-Atlantic climate offers around 230 frost-free days — one of the longer seasons in the Northeast. The Chesapeake Bay moderates temperatures, and the city's urban core often runs a week or two warmer than surrounding suburbs. Tomatoes, peppers, and eggplant do especially well here, and the long fall window allows excellent brassica crops.

In Baltimore (last frost around March 28), aim to direct sow or transplant corn outside around April — approximately 2 weeks after your last expected frost.

Corn thrives between 65°F and 95°F. It is frost-sensitive, meaning a single freeze at 32°F will damage or kill it — always wait until frost danger has fully passed. Expect 60–100 days from transplant to first harvest. Needs warm soil. Plant in blocks.

Frequently Asked Questions

When can I plant corn in Baltimore, MD?

In Baltimore (last frost around March 28), aim to direct sow or transplant corn outside around April — approximately 2 weeks after your last expected frost.

What is the USDA hardiness zone for Baltimore?

Baltimore, MD is in USDA Plant Hardiness Zone 7b. The last expected spring frost is around March 28, and the first fall frost arrives around November 13. This zone classification helps you understand which perennials survive winter and when annual vegetables can safely go outdoors.

Is it safe to plant corn outside in Baltimore right now?

That depends on the current weather forecast. Corn needs temperatures above 55°F (ideally 65–95°F) to thrive. CanIPlant checks your real 7-day forecast and any active frost alerts to give you a live YES, NO, or WAIT answer — just enter your ZIP code.

Can I grow corn in Baltimore 2026?

Yes — Corn grows well in Baltimore, MD. With a Zone 7b climate and a growing season of ~230 days, Baltimore is well-suited for warm-season crops like corn. Just wait until after the last frost (around March 28) before moving plants outside.

Grow Corn in Other Cities

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