When to plant in Glen Burnie, MD
USDA Zone 7bGlen Burnie, Maryland frost dates, USDA zone, and a full-year planting calendar, drawn from the nearest NOAA station and tuned to the local season.
In zone 7b, Glen Burnie supports a wide range of perennials year-round; the frost dates above are what set your annual vegetable timing.
Frost probability
BALTIMORE WASH INTL AP · 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 Glen Burnie’s own odds, recorded at BALTIMORE WASH INTL AP.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 12 | Apr 24 | Apr 9 | Oct 8 | Oct 21 | Nov 2 |
| 32°F | Apr 25 | Apr 10 | Mar 27 | Oct 17 | Oct 31 | Nov 12 |
| 28°F | Apr 10 | Mar 28 | Mar 13 | Oct 30 | Nov 10 | Nov 27 |
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 Glen Burnie, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 20 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.
Glen Burnie planting FAQ
When is the last spring frost in Glen Burnie, MD?
On average, the last spring frost in Glen Burnie is around April 10 (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 Glen Burnie, MD?
In Glen Burnie, the first 32°F freeze of fall lands around October 31 on average. Time your last harvests and any season-extension cover before it.
What hardiness zone is Glen Burnie in?
Glen Burnie 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 Glen Burnie?
Glen Burnie has about 204 frost-free days — a moderate growing season — between the average last spring frost (April 10) and first fall frost (October 31).
When should I plant tomatoes in Glen Burnie?
For Glen Burnie, sow tomatoes indoors about February 13–February 27 and move the seedlings out around April 17, after the last spring frost.
Never miss a window in Glen Burnie
An email when it’s time to start seeds, transplant, and sow — timed to Glen Burnie’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Pasadena · 4 km
- Ferndale · 4 km
- Riviera Beach · 7 km
- Brooklyn Park · 7 km
- Linthicum · 8 km
- Severn · 8 km
- Severna Park · 9 km
- Arbutus · 12 km
Frost dates recorded at BALTIMORE WASH INTL AP, 7 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 Glen Burnie, MD — Frost Dates & Zone 7b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USW00093721. Retrieved from https://blissgarden.com/maryland/glen-burnie.