When to Plant Bok Choy in Olympia Fields, Illinois (60461)
Location
Olympia Fields, Illinois
ZIP Code
60461
USDA Zone
6a
Last Frost
Monday, April 20, 2026
📅 Planting Calendar
Direct Sow Outdoors Monday, March 23, 2026
Pro Tip: Bok Choy can be directly sown outdoors. Plant 4 weeks before your last frost date.
🌿 Plant Details
Scientific Name Brassica rapa subsp. chinensis
Days to Maturity 45 days
☀️ Growing Requirements
☀️
Sun
Full Sun
💧
Water
Regular
Seeds typically germinate in 7-14 days
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Growing Bok Choy in Zone 6a
Bok Choy (Brassica rapa subsp. chinensis) is a popular garden vegetable. In Olympia Fields, Illinois, which is in USDA Hardiness Zone 6a, you should direct sow seeds around Monday, March 23, 2026.
Your average last frost date is Monday, April 20, 2026. Bok Choy grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.