Zone-Specific Guide
Grow Borage in Zone 4a
Your complete guide to growing borage in USDA Hardiness Zone 4a — planting windows, care tips, and harvest timing.
Spring/Fall
🌡️ Zone 4a
Days to Harvest
50–60
Spacing
12–18"
Method
Direct sow
Season
Spring/Fall
When to Plant Borage in Zone 4a
Direct Sow
Apr 15 – Jun 15, Aug 15 – Sept 15
How to Grow Borage in Zone 4a
📋 Key Timing Note
Two windows: spring and fall.
Direct sow seeds between Apr 15 – Jun 15, Aug 15 – Sept 15. Space plants 12–18" apart. Expect to harvest in approximately 50–60 days.
Common Pests in Zone 4a
Watch for these pests when growing borage in your area.
very few
Frequently Asked Questions
When should I plant Borage in Zone 4a?
Direct sow seeds Apr 15 – Jun 15, Aug 15 – Sept 15.
How far apart should I plant Borage in Zone 4a?
Space borage plants 12–18" apart in Zone 4a. This gives them adequate room for airflow and root development.
What pests affect Borage in Zone 4a?
Common pests for borage in Zone 4a include very few. Use companion planting and row covers as first-line defense.
How long until Borage is ready to harvest in Zone 4a?
In Zone 4a, expect borage to be ready in approximately 50–60 days from planting. Two windows: spring and fall.