When should I plant Arugula in Zone 9a?

Direct sow Arugula outdoors around Feb 20. Harvest around Mar 27.

What is the last frost date for Zone 9a?

The average last spring frost date for Zone 9a is Mar 20. The first fall frost averages Nov 12, giving a 237-day growing season.

Yes. Arugula needs 35 days to harvest. Zone 9a has a 237-day growing season, which is sufficient. You can plant up to 14 successions.

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Zone 9a has warm winters and an extended growing season — excellent for heat-loving crops like Arugula. Last frost: Mar 20. First frost: Nov 12.

Outdoor

Harvest

Feb 20Nov 12

Season: Mar 20 – Nov 12 (237 days) · Succession: plant every 2 weeks (up to 14x)

Zone9a

Last FrostMar 20

First FrostNov 12

Season Length237 days

Days to Harvest35

SunPart Sun / Part Shade

Frost ToleranceModerate

Spacing4/sqft (6" apart)

Direct sow Arugula seeds outdoors around Feb 20. Soil temperature should be at least 40°F. Space at 4/sqft (6" apart).

First harvest approximately Mar 27 (~35 days from planting). Continue harvesting until first frost (Nov 12).

For a fall harvest, plant Arugula around Oct 8 (5 weeks before first frost).

✅ Beans✅ Onions✅ Potatoes✅ Lettuce ✅ Dill✅ Beets✅ Carrots

❌ Strawberries

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

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