Zone-Specific Guide
Grow Shiso (Perilla) in Zone 3a
Your complete guide to growing shiso (perilla) in USDA Hardiness Zone 3a — planting windows, care tips, and harvest timing.
Summer
🌡️ Zone 3a
Days to Harvest
50–70
Spacing
10–12"
Method
Both
Season
Summer
When to Plant Shiso (Perilla) in Zone 3a
Start Indoors
Mar 15 – May
Transplant Outdoors
May 25 – Jul
How to Grow Shiso (Perilla) in Zone 3a
📋 Key Timing Note
Annual. Start indoors early. Short but productive season in warm weather.
Start seeds indoors during Mar 15 – May. Transplant seedlings outdoors between May 25 – Jul. Space plants 10–12" apart. Expect to harvest in approximately 50–70 days.
Common Pests in Zone 3a
Watch for these pests when growing shiso (perilla) in your area.
Frequently Asked Questions
When should I plant Shiso (Perilla) in Zone 3a?
Start seeds indoors Mar 15 – May. Transplant outdoors May 25 – Jul.
How far apart should I plant Shiso (Perilla) in Zone 3a?
Space shiso (perilla) plants 10–12" apart in Zone 3a. This gives them adequate room for airflow and root development.
What pests affect Shiso (Perilla) in Zone 3a?
Common pests for shiso (perilla) in Zone 3a 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 3a?
In Zone 3a, expect shiso (perilla) to be ready in approximately 50–70 days from planting. Annual. Start indoors early. Short but productive season in warm weather.