When to plant in Marlton, MD
USDA Zone 7bMarlton, 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, Marlton supports a wide range of perennials year-round; the frost dates above are what set your annual vegetable timing.
Frost probability
UPPER MARLBORO 3 NNW · 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 Marlton’s own odds, recorded at UPPER MARLBORO 3 NNW.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 12 | Apr 24 | Apr 8 | Oct 5 | Oct 19 | Nov 1 |
| 32°F | Apr 24 | Apr 9 | Mar 27 | Oct 14 | Oct 29 | Nov 11 |
| 28°F | Apr 12 | Mar 30 | Mar 14 | Oct 27 | Nov 10 | Nov 25 |
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 Marlton, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 23 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.
Marlton planting FAQ
When is the last spring frost in Marlton, MD?
Marlton's average last spring frost falls near April 9 — the 50% mark at 32°F in the 1991–2020 normals. Hold tender transplants until the risk has passed, then plant out.
When is the first fall frost in Marlton, MD?
In Marlton, the first 32°F freeze of fall lands around October 29 on average. Time your last harvests and any season-extension cover before it.
What hardiness zone is Marlton in?
Marlton 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 Marlton?
Marlton has about 203 frost-free days — a moderate growing season — between the average last spring frost (April 9) and first fall frost (October 29).
When should I plant tomatoes in Marlton?
For Marlton, sow tomatoes indoors about February 12–February 26 and move the seedlings out around April 16, after the last spring frost.
Never miss a window in Marlton
An email when it’s time to start seeds, transplant, and sow — timed to Marlton’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Rosaryville · 4 km
- Westphalia · 9 km
- Clinton · 10 km
- Brock Hall · 11 km
- Brandywine · 12 km
- Forestville · 12 km
- Camp Springs · 12 km
- Largo · 14 km
Frost dates recorded at UPPER MARLBORO 3 NNW, 10 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 Marlton, MD — Frost Dates & Zone 7b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00189070. Retrieved from https://blissgarden.com/maryland/marlton.