When should I plant Sla, Black Seeded Simpson in Zone 3a?

Start Sla, Black Seeded Simpson seeds indoors around Apr 10. Transplant outdoors after May 1. Expect first harvest around Jun 5.

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 Sla, Black Seeded Simpson in Zone 3a?

Yes. Sla, Black Seeded Simpson needs 45 days to harvest. Zone 3a has a 113-day growing season, which is sufficient. You can plant up to 4 successions.

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🥬 Kweken van Sla, Black Seeded Simpson in Zone 3a

Zone 3a has harsh winters and a short growing season. Start Sla, Black Seeded Simpson early indoors to maximize your harvest window. Laatste vorst: May 22. Eerste vorst: Sep 12.

Planting Calendar

Indoor

Outdoor

Harvest

Apr 10Sep 12

Season: May 22 – Sep 12 (113 dagen) · Succession: plant every 2 weeks (up to 4x)

Zone3a

Laatste vorstMay 22

Eerste vorstSep 12

Seizoen113 dagen

Oogst45 dagen

ZonHalfschaduw

When to Plant Sla, Black Seeded Simpson in Zone 3a

Start Seeds Indoors: Apr 10

Start Sla, Black Seeded Simpson seeds indoors around Apr 10 (6 weken voor de laatste vorst). Optimal germination temperature: 65F. Germinates in 4-10 days.

Transplant Outdoors: May 1

Transplant Sla, Black Seeded Simpson seedlings outdoors after May 1. Wait until soil temperature reaches 40F. Space plants at 4/m² (15cm afstand). Harden off plants for a week before moving outside.

Harvest: Jun 5

First harvest approximately Jun 5 (~35 dagen from transplant). Continue harvesting until first frost (Sep 12).

Fall Planting: Jul 18

For a fall harvest, plant Sla, Black Seeded Simpson around Jul 18 (8 weeks before first frost).

Begeleidende Beplanting

✅ Aardbeien✅ Wortels✅ Rode Bieten✅ Komkommers✅ Radijzen

Sla, Black Seeded Simpson in Andere 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 Je Tuin voor Sla, Black Seeded Simpson

Track Sla, Black Seeded Simpson from seed to harvest with personalized frost dates, watering recommendations, and companion planting visualization.

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