When should I plant Curled Mallow in Zone 3a?

Direct sow Curled Mallow outdoors around May 22. Harvest around Jul 16.

What is the last frost date for Zone 3a?

The average last spring frost date for Zone 3a is May 22. The first fall frost averages Sep 12, giving a 113-day growing season.

Can I grow Curled Mallow in Zone 3a?

Yes. Curled Mallow needs 55 days to harvest. Zone 3a has a 113-day growing season, which is sufficient. You can plant up to 2 successions.

Growing Curled Mallow in Zone 3a

Zone 3a has harsh winters and a short growing season. Start Curled Mallow early indoors to maximize your harvest window. Last frost: May 22. First frost: Sep 12.

Planting Calendar

Outdoor

Harvest

May 22Sep 12

Season: May 22 – Sep 12 (113 days) · Succession: plant every 3 weeks (up to 2x)

Zone3a

Last FrostMay 22

First FrostSep 12

Season Length113 days

Days to Harvest55

SunFull Sun

Frost ToleranceLight

Spacing4/sqft (6" apart)

When to Plant Curled Mallow in Zone 3a

Sow Seeds Outdoors: May 22

Direct sow Curled Mallow seeds outdoors around May 22. Soil temperature should be at least 50°F. Space at 4/sqft (6" apart).

Harvest: Jul 16

First harvest approximately Jul 16 (~55 days from planting). Continue harvesting until first frost (Sep 12).

Companion Planting

✅ Corn

Curled Mallow 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 Curled Mallow Garden

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

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