When to Plant Mint in Suisun City, California (94585)
Location
Suisun City, California
ZIP Code
94585
USDA Zone
9b
Last Frost
Tuesday, February 10, 2026
📅 Planting Calendar
Pro Tip: Sow Mint directly outdoors 4 weeks before your last frost date.
🌿 Plant Details
☀️ Growing Requirements
☀️
Sun
Partial Shade to Full Sun
💧
Water
Regular (keep moist)
↔️
Spacing
18" apart
🌱
Planting Depth
0.25" deep
Seeds typically germinate in 10-15 days
Ready to Plant Mint in Suisun City?
Get your seeds now so they're ready by Tuesday, January 13, 2026.
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🤝 Good Companions
⚠️ Avoid Planting Near
Other Plants for Suisun City
Growing Mint in Zone 9b
Mint (Mentha spicata) is a popular garden vegetable. In Suisun City, California, which is in USDA Hardiness Zone 9b, you should direct sow seeds around Tuesday, January 13, 2026.
Your average last frost date is Tuesday, February 10, 2026. Mint grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.