🍃

🍃 Growing Mint in Zone 10b

Zone 10b has a year-round growing season. Mint can be planted almost any time with proper planning. Last frost: Jan 28. First frost: Dec 22.

Planting Calendar

Indoor

Outdoor

Harvest

Dec 3Dec 22

Season: Jan 28 – Dec 22 (328 days)

Zone10b

Last FrostJan 28

First FrostDec 22

Season Length328 days

Days to Harvest60

SunPart Sun / Part Shade

Frost ToleranceHeavy

Spacing1/sqft (12" apart)

When to Plant Mint in Zone 10b

Start Seeds Indoors: Dec 3

Start Mint seeds indoors around Dec 3 (8 weeks before last frost). Optimal germination temperature: 70°F. Germinates in 10–16 days.

Transplant Outdoors: Jan 14

Transplant Mint seedlings outdoors after Jan 14. Wait until soil temperature reaches 50°F. Space plants at 1/sqft (12" apart). Harden off plants for a week before moving outside.

Harvest: Mar 15

First harvest approximately Mar 15 (~60 days from transplant). Continue harvesting until first frost (Dec 22). Mint can overwinter in mild climates for continued harvest.

Companion Planting

✅ Cabbage✅ Tomatoes

❌ Chamomile

Mint in Other Zones

1a 1b 2a 2b 3a 3b 4a 4b 5a 5b 6a 6b 7a 7b 8a 8b 9a 9b 10a 10b 11a 11b 12a 12b 13a 13b

Frequently Asked Questions

When should I plant Mint in Zone 10b?

Start Mint seeds indoors around Dec 3. Transplant outdoors after Jan 14. Expect first harvest around Mar 15.

What is the last frost date for Zone 10b?

The average last spring frost date for Zone 10b is Jan 28. The first fall frost averages Dec 22, giving a 328-day growing season.

Can I grow Mint in Zone 10b?

Yes. Mint needs 60 days to harvest. Zone 10b has a 328-day growing season, which is sufficient.

What is the best month to plant Mint in Zone 10b?

The best time to start Mint in Zone 10b is Dec. Begin seeds indoors around Dec 3, then transplant outdoors after the last frost date of Jan 28.

What companion plants grow well with Mint?

Good companion plants for Mint include Cabbage, Tomatoes. Avoid planting Mint near Chamomile.

How long does Mint take to harvest?

Mint takes approximately 60 days from planting to harvest. In Zone 10b, expect your first harvest around Mar 15.

Plan Your Mint Garden

Track Mint from seed to harvest with personalized frost dates, watering recommendations, and companion planting visualization.

Start Free Mint Growing Guide