Virginia planting calendar

When to plant kohlrabi in Virginia — sow, transplant & harvest dates

Virginia is mostly USDA zone 7b (range 5b-8a). Dates below are derived from kohlrabi's frost tolerance and Virginia's frost window — not generic national averages.

Kohlrabi planting timetable for Virginia

Stage	When in Virginia	Anchor
Start seeds indoors	mid-March (March 11)	5 weeks before the last frost (mid-April)
Transplant outside	late March (March 25)	21 days before the last frost (mid-April)
First harvest (estimate)	mid-May (May 19)	~55 days from transplant

Dates are state-wide averages for the dominant zone. Local microclimates — elevation, urban heat, coastal moderation — can shift the window by 1-2 weeks. Use the frost-date calculator for a date tuned to your town.

Why Virginia's climate shifts the kohlrabi dates

Virginia's last spring frost averages mid-April and first fall frost late October, which sets the whole planting clock. Virginia runs from cool mountains through the Piedmont to a mild Tidewater, giving a long, varied mid-Atlantic season. Sow early — kohlrabi bolt once daytime temperatures hold above 24 °C, so the earlier they go in, the longer the harvest.

Kohlrabi is a fast-maturing brassica that tolerates light frost down to about -4 °C but turns woody and pithy when daytime temperatures exceed 27 °C; transplant or direct-sow 3–4 weeks before the last spring frost for a summer harvest, or time a second sowing so plants mature in the cool days of early autumn. Harvest promptly when the swollen stem reaches 5–7 cm (2–3 inches) in diameter — larger bulbs become fibrous. Succession-sow every 3 weeks to extend the harvest window.

Frost-risk note

Don't plant before mid-April — a hard freeze can still set young plants back. In the western Appalachian highlands (zone 5b) the safe date runs a week or two later.

Regional variation within Virginia

the western Appalachian highlands (zone 5b) runs roughly 1-2 weeks behind the state average; the Tidewater and Hampton Roads coast (zone 8a) can plant 1-2 weeks earlier.

Virginia Beach — USDA zone 8a
Richmond — USDA zone 7b
Norfolk — USDA zone 8a
Arlington — USDA zone 7b
Roanoke — USDA zone 7a

What else to plant in Virginia around then

The same early window suits peas, lettuce, spinach, and onion sets.

Quick-grow guide

Sun: Full sun — 6+ hours direct.
Soil temperature for germination: 7-29 °C (45-85 °F).
Spacing: 6-9 inches (15-23 cm) between plants.
Days to harvest: ~55 days from planting out.

Frequently asked questions

When is the best time to plant kohlrabi in Virginia?

In Virginia (mostly USDA zone 7b), sow kohlrabi indoors around mid-March, transplant outdoors late March (before the last frost, mid-April), and harvest from mid-May. Kohlrabi are half-hardy — young plants shrug off a light frost but not a hard freeze, so sowing can start a couple of weeks before the last spring frost.

What USDA zone is Virginia?

Most of Virginia sits in USDA hardiness zone 7b, with the state spanning roughly 5b-8a from the western Appalachian highlands (zone 5b) to the Tidewater and Hampton Roads coast (zone 8a). The last spring frost averages mid-April and the first fall frost late October.

Can you grow kohlrabi in Virginia?

Yes. Virginia's dominant zone 7b supports kohlrabi — the key is timing. Kohlrabi are half-hardy — young plants shrug off a light frost but not a hard freeze, so sowing can start a couple of weeks before the last spring frost.

Does the planting date change across Virginia?

the western Appalachian highlands (zone 5b) runs roughly 1-2 weeks behind the state average; the Tidewater and Hampton Roads coast (zone 8a) can plant 1-2 weeks earlier.

What else can I plant in Virginia around the same time?

The same early window suits peas, lettuce, spinach, and onion sets.

Source and methodology

State zone spans from the USDA Plant Hardiness Zone Map (2023); frost-date averages from NOAA Climate Data Online. Hot-state two-season timing cross-checked against the UF/IFAS Florida Gardening Calendar and the University of Arizona Cooperative Extension planting calendar. Curated by the Growli editorial team.