When to plant in Orange, CT
USDA Zone 7aOrange, Connecticut frost dates, USDA zone, and a full-year planting calendar, drawn from the nearest NOAA station and tuned to the local season.
In zone 7a, Orange supports a wide range of perennials year-round; the frost dates above are what set your annual vegetable timing.
Frost probability
ANSONIA 1 NE · 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 Orange’s own odds, recorded at ANSONIA 1 NE.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 22 | May 8 | Apr 24 | Sep 27 | Oct 7 | Oct 21 |
| 32°F | May 10 | Apr 25 | Apr 11 | Oct 4 | Oct 17 | Nov 1 |
| 28°F | Apr 27 | Apr 10 | Mar 30 | Oct 14 | Oct 30 | Nov 13 |
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 Orange, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 17 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.
Orange planting FAQ
When is the last spring frost in Orange, CT?
Plan for the last spring frost in Orange around April 25 (the date it has a 50% chance of a 32°F freeze). Anything frost-sensitive should go out after it.
When is the first fall frost in Orange, CT?
In Orange, the first 32°F freeze of fall lands around October 17 on average. Time your last harvests and any season-extension cover before it.
What hardiness zone is Orange in?
Orange 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 Orange?
Orange has about 175 frost-free days — a moderate growing season — between the average last spring frost (April 25) and first fall frost (October 17).
When should I plant tomatoes in Orange?
For Orange, sow tomatoes indoors about February 28–March 14 and move the seedlings out around May 2, after the last spring frost.
Never miss a window in Orange
An email when it’s time to start seeds, transplant, and sow — timed to Orange’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- West Haven · 5 km
- Derby · 7 km
- Milford · 8 km
- Ansonia · 8 km
- New Haven · 9 km
- Shelton · 10 km
- East Haven · 14 km
- Trumbull Center · 14 km
Frost dates recorded at ANSONIA 1 NE, 9 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 Orange, CT — Frost Dates & Zone 7a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00060128. Retrieved from https://blissgarden.com/connecticut/orange.