When should I plant Curled Mallow in Zone 4b?

Direct sow Curled Mallow outdoors around May 1. Expect first harvest around Jun 25.

What is the last frost date for Zone 4b?

The average last spring frost date for Zone 4b is May 1. The first fall frost averages Oct 5, giving a 157-day growing season.

Yes. Curled Mallow needs 55 days to harvest. Zone 4b has a 157-day growing season, which is sufficient. You can plant up to 4 successions.

Zone 4b has cold winters and a moderate growing season. Timing is key for Curled Mallow in this zone. Darrera gelada: May 1. Primera gelada: Oct 5.

Outdoor

Harvest

May 1Oct 5

Season: May 1 – Oct 5 (157 dies) · Succession: plant every 3 weeks (up to 4x)

Zona4b

Darrera geladaMay 1

Primera geladaOct 5

Temporada157 dies

Collita55 dies

SolSol Ple

Direct sow Curled Mallow seeds outdoors around May 1. Wait until soil temperature reaches 50F. Space plants at 4/m² (15cm espaiat).

First harvest approximately Jun 25 (~55 dies from planting). Continue harvesting until first frost (Oct 5).

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