When should I plant Tilli in Zone 4a?

Direct sow Tilli outdoors around Apr 21. Expect first harvest around May 31.

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. Tilli needs 40 days to harvest. Zone 4a has a 149-day growing season, which is sufficient. You can plant up to 5 successions.

Zone 4a has cold winters and a moderate growing season. Timing is key for Tilli in this zone. Viimeinen halla: May 5. Ensimmäinen halla: Oct 1.

Outdoor

Harvest

Apr 21Oct 1

Season: May 5 – Oct 1 (149 päivää) · Succession: plant every 3 weeks (up to 5x)

Vyöhyke4a

Viimeinen hallaMay 5

Ensimmäinen hallaOct 1

Kausi149 päivää

Sato40 päivää

AurinkoTäysi Aurinko

Direct sow Tilli seeds outdoors around Apr 21. Wait until soil temperature reaches 50F. Space plants at 4/m² (15cm välein).

First harvest approximately May 31 (~40 päivää from planting). Continue harvesting until first frost (Oct 1).

For a fall harvest, plant Tilli around Aug 20 (6 weeks before first frost).

❌ Porkkanat

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