🥬 Can I Plant Swiss Chard in Durham, NC?

2026 planting guide for Zone 7b · Last frost ~March 22 · Growing season ~238 days

✅ YES — Good temps, but watch for heat — highs near 91°F

Temperature conditions are suitable for Swiss Chard. Highs near 91°F are on the warm side — make sure plants have plenty of water.

Planting window: Jul 16 – Jul 30
Good to go — plant now while conditions are right.
Live result based on current forecast for Durham, NC · Updates every 6 hours
USDA Zone
7b
Last Spring Frost
~March 22
First Fall Frost
November 15
Growing Season
~238 days
Ideal Temp for Swiss Chard
50–80°F
Frost Risk
✅ Tolerant

Growing Swiss Chard in Durham

Durham's Zone 7b location in the Research Triangle provides about 237 frost-free days. Similar to Raleigh just 20 miles away, Durham enjoys warm, humid summers and a generous fall window. Tomatoes, peppers, cucumbers, and sweet potatoes all perform well. The fall garden starting in late August is particularly rewarding — broccoli, kale, and collard greens often produce into December in Durham's mild climate.

In Durham (last frost around March 22), swiss chard can go out around February — approximately 4 weeks before the last expected frost, making it an early-season opportunity. Starting seeds indoors 4 weeks before the last frost date gives you a significant head start.

Swiss Chard thrives between 50°F and 80°F. It tolerates temperatures as low as 28°F, making it a candidate for early spring planting before the last frost date. Expect 50–60 days from transplant to first harvest. Tolerates heat and mild frost.

Frequently Asked Questions

When can I plant swiss chard in Durham, NC?

In Durham (last frost around March 22), swiss chard can go out around February — approximately 4 weeks before the last expected frost, making it an early-season opportunity. For best results, start seeds indoors 4 weeks before that — giving you strong transplants ready to go out at the right time.

What is the USDA hardiness zone for Durham?

Durham, NC is in USDA Plant Hardiness Zone 7b. The last expected spring frost is around March 22, and the first fall frost arrives around November 15. This zone classification helps you understand which perennials survive winter and when annual vegetables can safely go outdoors.

Is it safe to plant swiss chard outside in Durham right now?

That depends on the current weather forecast. Swiss Chard needs temperatures above 28°F (ideally 50–80°F) to thrive. CanIPlant checks your real 7-day forecast and any active frost alerts to give you a live YES, NO, or WAIT answer — just enter your ZIP code.

Can I grow swiss chard in Durham 2026?

Yes — Swiss Chard grows well in Durham, NC. With a Zone 7b climate and a growing season of ~238 days, Durham is well-suited for cool-season crops like swiss chard. As a frost-tolerant crop, swiss chard can even go out a few weeks before the last frost date.

Grow Swiss Chard in Other Cities

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