When to Plant Bok Choy in Cabin John, Maryland (20818)
Location
Cabin John, Maryland
ZIP Code
20818
USDA Zone
7b
Last Frost
Sunday, April 5, 2026
📅 Planting Calendar
Direct Sow Outdoors Sunday, March 8, 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 7b
Bok Choy (Brassica rapa subsp. chinensis) is a popular garden vegetable. In Cabin John, Maryland, which is in USDA Hardiness Zone 7b, you should direct sow seeds around Sunday, March 8, 2026.
Your average last frost date is Sunday, April 5, 2026. Bok Choy grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.