When to plant in Joppatowne, MD
USDA Zone 7bEverything below — frost dates, hardiness zone, and what to plant when in Joppatowne, Maryland — is derived from the closest NOAA station with complete climate normals.
Heads up: the nearest complete-normals station is about 17 km from Joppatowne, so your yard's frost dates can differ — a low spot or a paved city center can shift them by a week. In zone 7b, Joppatowne supports a wide range of perennials year-round; the frost dates above are what set your annual vegetable timing.
Frost probability
ABERDEEN PHILLIPS FLD · 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 Joppatowne’s own odds, recorded at ABERDEEN PHILLIPS FLD.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 12 | Apr 27 | Apr 9 | Oct 5 | Oct 19 | Nov 1 |
| 32°F | Apr 30 | Apr 10 | Mar 27 | Oct 14 | Oct 30 | Nov 12 |
| 28°F | Apr 12 | Mar 29 | Mar 13 | Oct 28 | 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 Joppatowne, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 27 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.
Joppatowne planting FAQ
When is the last spring frost in Joppatowne, MD?
Joppatowne's average last spring frost falls near April 10 — 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 Joppatowne, MD?
The first fall frost in Joppatowne typically arrives around October 30 (50% probability at 32°F). Harvest or protect frost-sensitive crops before then.
What hardiness zone is Joppatowne in?
Joppatowne 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 Joppatowne?
Joppatowne has about 203 frost-free days — a moderate growing season — between the average last spring frost (April 10) and first fall frost (October 30).
When should I plant tomatoes in Joppatowne?
For Joppatowne, 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 Joppatowne
An email when it’s time to start seeds, transplant, and sow — timed to Joppatowne’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Edgewood · 5 km
- Honeygo · 7 km
- White Marsh · 10 km
- Middle River · 11 km
- Bel Air South · 11 km
- Perry Hall · 11 km
- Rossville · 13 km
- Bel Air · 13 km
Frost dates recorded at ABERDEEN PHILLIPS FLD, 17 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 Joppatowne, MD — Frost Dates & Zone 7b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USW00013701. Retrieved from https://blissgarden.com/maryland/joppatowne.