Baltimore, MD · zone 7b · ~240 frost-free days
When to plant a garden in Baltimore.
In Baltimore, the typical last spring frost lands around Mar 25 and the first fall frost around Nov 20, giving you about 240 frost-free days. Cool-season crops go out before the last frost; warm-season crops wait until after it.
The 2026 windows
Sow dates for Baltimore, keyed to your frost.
| Crop | Start indoors | Spring sow / set out | Fall sow |
|---|---|---|---|
| Tomato, slicing | Feb 18 to Apr 20 | Apr 1 to Jun 1 | — |
| Lettuce, leaf | — | Feb 15 to Apr 1 | Sep 6 to Nov 5 |
| Carrot | — | Feb 15 to Mar 20 | Aug 25 to Sep 20 |
| Bush Bean | — | Mar 25 to May 15 | Aug 6 to Sep 8 |
| Cucumber, slicing | — | Apr 1 to Jul 1 | Jul 20 to Aug 20 |
| Pepper, bell | Feb 27 to Apr 20 | Apr 10 to Jun 1 | — |
| Kale | Jan 4 to Feb 1 | Feb 15 to Mar 15 | Aug 20 to Oct 5 |
| Spinach | — | Feb 1 to Mar 15 | Sep 6 to Oct 25 |
Baltimore sits in Zone 7b, but two gardens in the same city can be a week or two apart. The planner works from your ZIP code's frost dates, not the zone, so the dates land right for your block, not the metro average.
Build your Baltimore garden plan.
Tell the free planner what you want to eat and who you're feeding. It returns plant counts, spacing, and frost-safe sow dates for ZIP 21201 in about 60 seconds.