Arlington, VA planting zone & frost dates

Arlington is in USDA hardiness zone 7b. The last spring frost usually comes around April 9 and the first fall frost around October 31, for a growing season of about 202 days.

USDA hardiness zone7bavg. extreme winter low 5°F to 10°F
Average last spring frostApril 990% chance of no frost after April 26
Average first fall frostOctober 3110% chance of frost by October 16
Growing season202 daysfrost-free days in an average year

Planting calendar for Arlington

Dates are counted from the average last spring frost (April 9) using the typical timing recommended by U.S. extension services. Warm-season crops go out only after the danger of frost has passed and the soil has warmed.

CropWhen
TomatoesStart seeds indoors: Feb 12 – Feb 26
Transplant outdoors: Apr 16 – Apr 23
PeppersStart seeds indoors: Jan 29 – Feb 12
Transplant outdoors: Apr 23 – Apr 30
EggplantStart seeds indoors: Jan 29 – Feb 12
Transplant outdoors: Apr 23 – Apr 30
BroccoliStart seeds indoors: Jan 29 – Feb 12
Transplant outdoors: Mar 12 – Mar 26
CabbageStart seeds indoors: Jan 29 – Feb 12
Transplant outdoors: Mar 12 – Mar 26
Onions (sets)Plant outdoors: Mar 12 – Mar 26
PeasSow outdoors: Feb 26 – Mar 12
SpinachSow outdoors: Feb 26 – Mar 12
LettuceSow outdoors: Mar 12 – Mar 26
CarrotsSow outdoors: Mar 12 – Mar 26
PotatoesPlant outdoors: Mar 12 – Mar 26
BeansSow outdoors: Apr 16 – Apr 23
Sweet cornSow outdoors: Apr 16 – Apr 23
CucumbersSow outdoors: Apr 16 – Apr 23
Squash & zucchiniSow outdoors: Apr 16 – Apr 23
BasilStart seeds indoors: Feb 26 – Mar 12
Transplant outdoors: Apr 16 – Apr 23

Fall garden: cool-season crops like lettuce, spinach and kale can be sown again around Sep 5 (8 weeks before the average first fall frost on Oct 31).

Useful for zone 7b gardens

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Frost risk in detail

90% chance50% chance10% chance
Last 32°F frost in spring is afterMar 27Apr 9Apr 26
First 32°F frost in fall is beforeNov 13Oct 31Oct 16

How to read it: in spring there is a 10% chance of a frost after April 26, so that is a safe date for tender plants. In fall there is a 10% chance of frost before October 16. A hard freeze (28°F) usually ends around March 30.

Hardiness zone by ZIP code in Arlington

Nearby cities

All cities in Virginia → · Other zone 7b cities →

Questions

What growing zone is Arlington, VA?

Arlington is in USDA Plant Hardiness Zone 7b (average extreme winter low 5°F to 10°F), according to the USDA 2023 map. Some ZIP codes of the city fall in zone 8a.

When is the last frost in Arlington?

The average last spring frost (32°F) in Arlington is April 9. There is still a 10% chance of frost until April 26.

When can I plant tomatoes in Arlington?

Transplant tomatoes outdoors 1–2 weeks after the average last frost: around Apr 16 – Apr 23. Start seeds indoors 6–8 weeks before the last frost.

Frost dates: NOAA U.S. Climate Normals 1991–2020, station Dalecarlia Rsvr, MD (USC00182325), 6.5 km (4.0 mi) from the city center, elevation 46 m, based on 24 years of records. Hardiness zone: USDA Plant Hardiness Zone Map 2023 for the ZIP code nearest to the city center. Microclimates (valleys, hills, cities, coasts) can be warmer or colder: check the local forecast before planting. How we calculate the data.