Zone 8a covers 26 days of last-frost dates. We measured Little Rock, AR at Mar 9 and Baltimore, MD at Apr 4. Give us your town or ZIP and we'll use ten years of daily lows recorded at your own coordinates instead of the middle of that range.
Why these dates work in zone 8a
Zone 8a's last spring frost averages Mar 15 and first fall frost Nov 19 — about 249 frost-free days. Mustard Greens tolerates light frost, so you can sow ahead of the last-frost date and keep harvesting into the cooler fall. There's also room for a fall succession sowing around Oct 8 for a second harvest before frost.
Common questions
How long does mustard greens take to grow in zone 8a?
Mustard Greens matures in about 25–40 days from sowing. In zone 8a that means sowing around Feb 15 and first picking around Mar 12.
Will mustard greens survive frost in zone 8a?
Yes — mustard greens tolerates light frost. In zone 8a you can sow a little before the last frost (around Mar 15) and keep harvesting past the first fall frost (around Nov 19).
Can I plant a second crop of mustard greens in zone 8a?
Yes — in zone 8a there's time for a fall sowing around Oct 8 for a second harvest before frost.
For soil, spacing, pests and companion planting, see the full mustard greens growing guide →