Zone-Specific Guide
Grow Choy Sum in Zone 7a
Your complete guide to growing choy sum in USDA Hardiness Zone 7a — planting windows, care tips, and harvest timing.
Fall-Spring
🌡️ Zone 7a
Days to Harvest
35–50
Spacing
6–10"
Method
Direct sow
Season
Fall-Spring
When to Plant Choy Sum in Zone 7a
Start Indoors
Jul 15 – Aug 15
Transplant Outdoors
Aug 15 – Oct 15
Direct Sow
Aug 15 – Mar
How to Grow Choy Sum in Zone 7a
📋 Key Timing Note
Fall planting is king. Start indoors in summer, transplant to beds in early fall. Mild winters allow harvest through January.
Direct sow seeds between Aug 15 – Mar. Space plants 6–10" apart. Expect to harvest in approximately 35–50 days.
Common Pests in Zone 7a
Watch for these pests when growing choy sum in your area.
Frequently Asked Questions
When should I plant Choy Sum in Zone 7a?
Start seeds indoors Jul 15 – Aug 15. Transplant outdoors Aug 15 – Oct 15.
How far apart should I plant Choy Sum in Zone 7a?
Space choy sum plants 6–10" apart in Zone 7a. This gives them adequate room for airflow and root development.
What pests affect Choy Sum in Zone 7a?
Common pests for choy sum in Zone 7a include flea beetles, aphids. Use companion planting and row covers as first-line defense.
How long until Choy Sum is ready to harvest in Zone 7a?
In Zone 7a, expect choy sum to be ready in approximately 35–50 days from planting. Fall planting is king. Start indoors in summer, transplant to beds in early fall. Mild winters allow harvest through January.