When should I plant Bok Choy in Zone 5b?

Start Bok Choy seeds indoors around Mar 31. Transplant outdoors after Apr 14. Expect first harvest around May 19.

What is the last frost date for Zone 5b?

The average last spring frost date for Zone 5b is Apr 28. The first fall frost averages Oct 8, giving a 163-day growing season.

Can I grow Bok Choy in Zone 5b?

Yes. Bok Choy needs 45 days to harvest. Zone 5b has a 163-day growing season, which is sufficient. You can plant up to 8 successions.

Growing Bok Choy in Zone 5b

Zone 5b has cold winters and a moderate growing season. Timing is key for Bok Choy in this zone. Siste frost: Apr 28. Første frost: Oct 8.

Planting Calendar

Indoor

Outdoor

Harvest

Mar 31Oct 8

Season: Apr 28 – Oct 8 (163 dager) · Succession: plant every 2 weeks (up to 8x)

Sone5b

Siste frostApr 28

Første frostOct 8

Sesong163 dager

Høst45 dager

SolHalvskygge

When to Plant Bok Choy in Zone 5b

Start Seeds Indoors: Mar 31

Start Bok Choy seeds indoors around Mar 31 (4 uker før siste frost). Optimal germination temperature: 65F. Germinates in 4-8 days.

Transplant Outdoors: Apr 14

Transplant Bok Choy seedlings outdoors after Apr 14. Wait until soil temperature reaches 45F. Space plants at 4/m² (15cm avstand). Harden off plants for a week before moving outside.

Harvest: May 19

First harvest approximately May 19 (~35 dager from transplant). Continue harvesting until first frost (Oct 8).

Fall Planting: Aug 20

For a fall harvest, plant Bok Choy around Aug 20 (7 weeks before first frost).

Samdyrking

✅ Gulrøtter✅ Rødbeter✅ Dill✅ Løk✅ Bønner

❌ Jordbær

Bok Choy 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 Garden Bok Choy

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

Start Free Bok Choy Growing Guide