When should I plant Arugula in Zone 4a?

Direct sow Arugula outdoors around Apr 7. Harvest around May 12.

What is the last frost date for Zone 4a?

The average last spring frost date for Zone 4a is May 5. The first fall frost averages Oct 1, giving a 149-day growing season.

Yes. Arugula needs 35 days to harvest. Zone 4a has a 149-day growing season, which is sufficient. You can plant up to 8 successions.

🥗

Zone 4a has cold winters and a moderate growing season. Timing is key for Arugula in this zone. Last frost: May 5. First frost: Oct 1.

Outdoor

Harvest

Apr 7Oct 1

Season: May 5 – Oct 1 (149 days) · Succession: plant every 2 weeks (up to 8x)

Zone4a

Last FrostMay 5

First FrostOct 1

Season Length149 days

Days to Harvest35

SunPart Sun / Part Shade

Frost ToleranceModerate

Spacing4/sqft (6" apart)

Direct sow Arugula seeds outdoors around Apr 7. Soil temperature should be at least 40°F. Space at 4/sqft (6" apart).

First harvest approximately May 12 (~35 days from planting). Continue harvesting until first frost (Oct 1).

For a fall harvest, plant Arugula around Aug 27 (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.