Month planting calendar

What to plant in March in Washington (20001)

In Washington, ZIP 20001, zone 7b, here is what you can start indoors, transplant, or direct-sow in March, and what to wait on until later.

Source: washington-reagan frost station, USDA zone 7b, last updated 2026-06-28. Verify locally before planting high-value crops because microclimates, current weather, and yard exposure can move the safe date.