When to plant in Urbana, MD
USDA Zone 7aUrbana, Maryland frost dates, USDA zone, and a full-year planting calendar, drawn from the nearest NOAA station and tuned to the local season.
Zone 7a means many perennials and even some tender shrubs overwinter in Urbana, while your frost dates still decide when annuals go out.
Frost probability
DAMASCUS 3 SSW · 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 Urbana’s own odds, recorded at DAMASCUS 3 SSW.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 15 | Apr 28 | Apr 14 | Oct 5 | Oct 17 | Oct 31 |
| 32°F | May 2 | Apr 14 | Mar 31 | Oct 13 | Oct 29 | Nov 12 |
| 28°F | Apr 16 | Apr 2 | Mar 18 | Oct 26 | Nov 8 | Nov 24 |
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 Urbana, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 30 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.
Urbana planting FAQ
When is the last spring frost in Urbana, MD?
On average, the last spring frost in Urbana is around April 14 (50% probability at 32°F, from 1991–2020 NOAA normals). Wait until after this date to set out tender plants like tomatoes and peppers.
When is the first fall frost in Urbana, MD?
The first fall frost in Urbana typically arrives around October 29 (50% probability at 32°F). Harvest or protect frost-sensitive crops before then.
What hardiness zone is Urbana in?
Urbana is in USDA hardiness zone 7a. In zone 7a, winters are moderate — most common vegetables grow well in season.
How long is the growing season in Urbana?
There are roughly 198 frost-free days in Urbana (a moderate growing season), running from the average last frost around April 14 to the first fall frost near October 29.
When should I plant tomatoes in Urbana?
In Urbana, start tomato seeds indoors around February 17–March 3, then transplant seedlings outdoors around April 21 once the danger of frost has passed.
Never miss a window in Urbana
An email when it’s time to start seeds, transplant, and sow — timed to Urbana’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Green Valley · 9 km
- Ballenger Creek · 9 km
- Linganore · 10 km
- Clarksburg · 13 km
- Frederick · 14 km
- Damascus · 14 km
- Germantown · 18 km
- Montgomery Village · 19 km
Frost dates recorded at DAMASCUS 3 SSW, 12 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 Urbana, MD — Frost Dates & Zone 7a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00182336. Retrieved from https://blissgarden.com/maryland/urbana.