When to plant in Waldorf, MD
USDA Zone 7bWaldorf, Maryland frost dates, USDA zone, and a full-year planting calendar, drawn from the nearest NOAA station and tuned to the local season.
Waldorf's nearest full-normals station sits about 21 km out, so treat these as a close estimate — local microclimate can nudge your first and last frost. In zone 7b, Waldorf supports a wide range of perennials year-round; the frost dates above are what set your annual vegetable timing.
Frost probability
MECHANICSVILLE 5 NE · 1991–2020The date the last spring and first fall frost occur, by threshold and probability. A 90% date is later in spring — and earlier in fall — than a 10% date; the 50% · 32°F row is what most gardeners plan around. These are Waldorf’s own odds, recorded at MECHANICSVILLE 5 NE.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 15 | Apr 30 | Apr 15 | Oct 3 | Oct 16 | Oct 31 |
| 32°F | May 2 | Apr 17 | Mar 31 | Oct 12 | Oct 27 | Nov 9 |
| 28°F | Apr 17 | Apr 2 | Mar 19 | Oct 24 | Nov 6 | Nov 23 |
Download this table as CSV ↓ — every threshold and probability, plus this city’s planting-window dates.
What to plant now
TODAY · JULY 19Full-year planting calendar
Each bar is the exact window to take a planting action in Waldorf, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 28 km · complete 32°F normalsWhen stations disagree by more than a few days, that spread is real microclimate variation — elevation, water, urban heat. Judge which station best matches your own yard.
Waldorf planting FAQ
When is the last spring frost in Waldorf, MD?
Plan for the last spring frost in Waldorf around April 17 (the date it has a 50% chance of a 32°F freeze). Anything frost-sensitive should go out after it.
When is the first fall frost in Waldorf, MD?
Expect Waldorf's first fall frost near October 27 — a 50% chance of 32°F by that date. Bring in or cover tender crops ahead of it.
What hardiness zone is Waldorf in?
Waldorf is in USDA hardiness zone 7b. In zone 7b, winters are moderate — most common vegetables grow well in season.
How long is the growing season in Waldorf?
Waldorf has about 193 frost-free days — a moderate growing season — between the average last spring frost (April 17) and first fall frost (October 27).
When should I plant tomatoes in Waldorf?
For Waldorf, sow tomatoes indoors about February 20–March 6 and move the seedlings out around April 24, after the last spring frost.
Never miss a window in Waldorf
An email when it’s time to start seeds, transplant, and sow — timed to Waldorf’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Bensville · 7 km
- La Plata · 9 km
- Brandywine · 9 km
- Accokeek · 10 km
- Fort Washington · 16 km
- Clinton · 16 km
- Friendly · 17 km
- Fort Hunt · 18 km
Frost dates recorded at MECHANICSVILLE 5 NE, 21 km from the city center · 1991–2020 NOAA climate normals · zone from the USDA/PRISM 2023 map. How we compute this.
BlissGarden. "When to Plant in Waldorf, MD — Frost Dates & Zone 7b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00185865. Retrieved from https://blissgarden.com/maryland/waldorf.