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Bok Choy plant growing in a garden

Photo: Wikimedia Commons

Growing Bok Choy

Bok choy is an Asian brassica that grows fast, tolerates light frost, and produces tender crisp leaves for stir-fries and soups. A reliable cool-season performer with two growing windows per year.

Quick Answer: Bok Choy grows in Zones 4a–9b, taking 45–60 days to harvest. It's one of the easiest crops to grow.
🌡️ Zones 4a–9b 🌥️ Full Shade 💧 Moderate Water 🌱 Beginner Friendly 🪴 Container OK (5+ gal) 🏠 Indoor Viable 💦 Hydroponic ❄️ Frost Tolerant 🐾 Pet Safe

Can You Grow Bok Choy in Your Area?

Growing Tips

Start indoors 4-6 weeks before last frost or direct sow in fall. Harvest outer leaves continuously or cut the whole head at 2 inches above soil for regrowth. Keep moist — dry conditions trigger bolting.

Where Does Bok Choy Grow?

Bok Choy is suited to Zones 4a–9b. Here are some areas where it thrives:

✅ Zone 4a ✅ Zone 4b ✅ Zone 5a ✅ Zone 5b ✅ Zone 6a ✅ Zone 6b ✅ Zone 7a ✅ Zone 7b ✅ Zone 8a ✅ Zone 8b ✅ Zone 9a ✅ Zone 9b
Won't grow outdoors in:
❌ Zone 1a ❌ Zone 1b ❌ Zone 2a ❌ Zone 2b ❌ Zone 11a ❌ Zone 11b ❌ Zone 12a ❌ Zone 12b ❌ Zone 13a ❌ Zone 13b ❌ Canadian Zone 0 ❌ Canadian Zone 1 ❌ Canadian Zone 2

Frequently Asked Questions

Bok Choy grows in USDA Zones 4a–9b.
Yes — Bok Choy is beginner-friendly.
Yes — use a 5+ gallon pot.
Bok Choy is safe for dogs and safe for cats.