Local Growing Guide
Grow Nasturtiums in San Diego, CA
Your local guide to growing nasturtiums in San Diego — zone-specific timing, local tips, and care advice.
Cool
📍 San Diego
🌡️ Zone 10a
Days to Harvest
50–65
Spacing
10–12"
Method
Direct sow
Season
Cool
When to Plant Nasturtiums in San Diego
San Diego sits in USDA Zone 10a. Here are your local planting windows.
Direct Sow
Oct – Apr
Growing Nasturtiums in San Diego
📋 Key Timing
Edible flowers and leaves. Great trap crop for aphids. Prefers poor soil — too much fertilizer = all leaves, no flowers.
Sow seeds directly in your San Diego garden between Oct – Apr.
Watch for These Pests in San Diego
aphids (trap crop)
cabbage worms
Frequently Asked Questions
Can I grow Nasturtiums in San Diego?
Yes! Nasturtiums grows well in San Diego's Zone 10a climate. Edible flowers and leaves. Great trap crop for aphids. Prefers poor soil — too much fertilizer = all leaves, no flowers.
When to plant Nasturtiums in San Diego?
Direct sow nasturtiums between Oct – Apr in San Diego.
Do Nasturtiums need shade in San Diego?
Nasturtiums generally handle San Diego's climate well without shade cloth, though afternoon shade can help during heat waves.
More Growing Guides
Full Nasturtiums growing guide · Zone 10 planting dates · All plants for San Diego