When should I plant Mustard Greens in Zone 9b?

Direct sow Mustard Greens outdoors around Feb 10. Harvest around Mar 27.

What is the last frost date for Zone 9b?

The average last spring frost date for Zone 9b is Mar 10. The first fall frost averages Nov 15, giving a 250-day growing season.

Can I grow Mustard Greens in Zone 9b?

Yes. Mustard Greens needs 45 days to harvest. Zone 9b has a 250-day growing season, which is sufficient. You can plant up to 14 successions.

Growing Mustard Greens in Zone 9b

Zone 9b has warm winters and an extended growing season — excellent for heat-loving crops like Mustard Greens. Last frost: Mar 10. First frost: Nov 15.

Planting Calendar

Outdoor

Harvest

Feb 10Nov 15

Season: Mar 10 – Nov 15 (250 days) · Succession: plant every 2 weeks (up to 14x)

Zone9b

Last FrostMar 10

First FrostNov 15

Season Length250 days

Days to Harvest45

SunPart Sun / Part Shade

Frost ToleranceModerate

Spacing4/sqft (6" apart)

When to Plant Mustard Greens in Zone 9b

Sow Seeds Outdoors: Feb 10

Direct sow Mustard Greens seeds outdoors around Feb 10. Soil temperature should be at least 40°F. Space at 4/sqft (6" apart).

Harvest: Mar 27

First harvest approximately Mar 27 (~45 days from planting). Continue harvesting until first frost (Nov 15).

Fall Planting: Oct 4

For a fall harvest, plant Mustard Greens around Oct 4 (6 weeks before first frost).

Mustard Greens in Other Zones

1a 1b 2a 2b 3a 3b 4a 4b 5a 5b 6a 6b 7a 7b 8a 8b 9a 9b 10a 10b 11a 11b 12a 12b 13a 13b

Plan Your Mustard Greens Garden

Track Mustard Greens from seed to harvest with personalized frost dates, watering recommendations, and companion planting visualization.

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