When to plant in Overlea, MD
USDA Zone 8aEverything below — frost dates, hardiness zone, and what to plant when in Overlea, Maryland — is derived from the closest NOAA station with complete climate normals.
In zone 8a, Overlea supports a wide range of perennials year-round; the frost dates above are what set your annual vegetable timing.
Frost probability
CYLBURN · 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 Overlea’s own odds, recorded at CYLBURN.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 1 | Apr 14 | Apr 2 | Oct 13 | Oct 27 | Nov 9 |
| 32°F | Apr 13 | Apr 2 | Mar 20 | Oct 27 | Nov 7 | Nov 21 |
| 28°F | Apr 3 | Mar 22 | Mar 8 | Nov 6 | Nov 20 | Dec 7 |
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 Overlea, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 26 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.
Overlea planting FAQ
When is the last spring frost in Overlea, MD?
On average, the last spring frost in Overlea is around April 2 (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 Overlea, MD?
The first fall frost in Overlea typically arrives around November 7 (50% probability at 32°F). Harvest or protect frost-sensitive crops before then.
What hardiness zone is Overlea in?
Overlea is in USDA hardiness zone 8a. In zone 8a, winters are mild — many tender perennials overwinter here.
How long is the growing season in Overlea?
Overlea has about 219 frost-free days — a long growing season — between the average last spring frost (April 2) and first fall frost (November 7).
When should I plant tomatoes in Overlea?
For Overlea, sow tomatoes indoors about February 5–February 19 and move the seedlings out around April 9, after the last spring frost.
Never miss a window in Overlea
An email when it’s time to start seeds, transplant, and sow — timed to Overlea’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Rossville · 4 km
- Parkville · 4 km
- Rosedale · 4 km
- Carney · 5 km
- White Marsh · 5 km
- Perry Hall · 6 km
- Middle River · 8 km
- Honeygo · 9 km
Frost dates recorded at CYLBURN, 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 Overlea, MD — Frost Dates & Zone 8a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00182308. Retrieved from https://blissgarden.com/maryland/overlea.