What Can Grow in Columbia, MD

Columbia in Howard County has productive growing conditions between Baltimore and Washington DC.

Columbia, MD is in USDA Hardiness Zone 7a. The growing season lasts about 180 days, with last frost around March 28 and first fall frost around October 22. Top crops include tomatoes, peppers, corn.

7aUSDA Zone
180 daysFrost-Free
March 28Last Frost
October 22First Frost
🌱 What Grows in Columbia
tomatoespepperscornbeanssquashbroccoli
💡 Planting Tips

Planned community with good garden space. Plant warm crops April 15. Good conditions overall.

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📍 Full Zone 7a Guide 🌎 Maryland Planting Guide

Frequently Asked Questions

Columbia, MD is in USDA Plant Hardiness Zone 7a. Columbia in Howard County has productive growing conditions between Baltimore and Washington DC.

The average last spring frost in Columbia is around March 28. The first fall frost typically arrives around October 22, giving a frost-free growing season of approximately 180 days.

Columbia's Zone 7a climate supports growing tomatoes, peppers, corn, beans, squash, broccoli. Planned community with good garden space. Plant warm crops April 15. Good conditions overall.

In Columbia, start with cool-season crops like lettuce, spinach, and broccoli a few weeks before the last frost date of March 28. Warm-season crops like tomatoes and peppers should go in after all frost risk has passed.