Zone-Specific Guide
Grow Shiso (Perilla) in Zone 5a
Your complete guide to growing shiso (perilla) in USDA Hardiness Zone 5a — planting windows, care tips, and harvest timing.
Summer
🌡️ Zone 5a
Days to Harvest
50–70
Spacing
10–12"
Method
Both
Season
Summer
When to Plant Shiso (Perilla) in Zone 5a
Start Indoors
Mar 1 – Apr 1
Transplant Outdoors
Apr 25 – Jun
Direct Sow
May 1 – Jul
How to Grow Shiso (Perilla) in Zone 5a
📋 Key Timing Note
Start indoors for earlier harvest. Self-seeds aggressively once established.
Start seeds indoors during Mar 1 – Apr 1. Transplant seedlings outdoors between Apr 25 – Jun. Direct sow seeds between May 1 – Jul. Space plants 10–12" apart. Expect to harvest in approximately 50–70 days.
Common Pests in Zone 5a
Watch for these pests when growing shiso (perilla) in your area.
Frequently Asked Questions
When should I plant Shiso (Perilla) in Zone 5a?
Start seeds indoors Mar 1 – Apr 1. Transplant outdoors Apr 25 – Jun.
How far apart should I plant Shiso (Perilla) in Zone 5a?
Space shiso (perilla) plants 10–12" apart in Zone 5a. This gives them adequate room for airflow and root development.
What pests affect Shiso (Perilla) in Zone 5a?
Common pests for shiso (perilla) in Zone 5a include aphids, spider mites. Use companion planting and row covers as first-line defense.
How long until Shiso (Perilla) is ready to harvest in Zone 5a?
In Zone 5a, expect shiso (perilla) to be ready in approximately 50–70 days from planting. Start indoors for earlier harvest. Self-seeds aggressively once established.