Zone-Specific Guide
Grow Nasturtiums in Zone 4a
Your complete guide to growing nasturtiums in USDA Hardiness Zone 4a — planting windows, care tips, and harvest timing.
Spring/Fall
🌡️ Zone 4a
Days to Harvest
50–65
Spacing
10–12"
Method
Direct sow
Season
Spring/Fall
When to Plant Nasturtiums in Zone 4a
Direct Sow
Apr 15 – Jun 15, Aug 15 – Sept 15
How to Grow Nasturtiums 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 10–12" apart. Expect to harvest in approximately 50–65 days.
Common Pests in Zone 4a
Watch for these pests when growing nasturtiums in your area.
Frequently Asked Questions
When should I plant Nasturtiums in Zone 4a?
Direct sow seeds Apr 15 – Jun 15, Aug 15 – Sept 15.
How far apart should I plant Nasturtiums in Zone 4a?
Space nasturtiums plants 10–12" apart in Zone 4a. This gives them adequate room for airflow and root development.
What pests affect Nasturtiums in Zone 4a?
Common pests for nasturtiums in Zone 4a include aphids (trap crop), cabbage worms. Use companion planting and row covers as first-line defense.
How long until Nasturtiums is ready to harvest in Zone 4a?
In Zone 4a, expect nasturtiums to be ready in approximately 50–65 days from planting. Two windows: spring and fall.