Zone-Specific Guide
Grow Nasturtiums in Zone 12a
Your complete guide to growing nasturtiums in USDA Hardiness Zone 12a — planting windows, care tips, and harvest timing.
Winter
🌡️ Zone 12a
🏖️ Shade Cloth
Days to Harvest
50–65
Spacing
10–12"
Method
Direct sow
Season
Winter
When to Plant Nasturtiums in Zone 12a
Direct Sow
Dec – Jan
How to Grow Nasturtiums in Zone 12a
📋 Key Timing Note
Very marginal. Only the coolest weeks of winter. Consider heat-tolerant varieties.
Direct sow seeds between Dec – Jan. Space plants 10–12" apart. Expect to harvest in approximately 50–65 days.
🏖️ Shade Cloth Recommended
In Zone 12a, use 30-50% shade cloth during the hottest months to protect nasturtiums from heat stress.
Common Pests in Zone 12a
Watch for these pests when growing nasturtiums in your area.
Frequently Asked Questions
When should I plant Nasturtiums in Zone 12a?
Direct sow seeds Dec – Jan.
How far apart should I plant Nasturtiums in Zone 12a?
Space nasturtiums plants 10–12" apart in Zone 12a. This gives them adequate room for airflow and root development.
What pests affect Nasturtiums in Zone 12a?
Common pests for nasturtiums in Zone 12a 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 12a?
In Zone 12a, expect nasturtiums to be ready in approximately 50–65 days from planting. Very marginal. Only the coolest weeks of winter. Consider heat-tolerant varieties.