10B

Zone 10B

Subtropical

Average minimum winter temperature: 35° to 40°F

Covers 9 counties across 2 states
10B

Zone 10B

Subtropical

Avg min winter temp: 35° to 40°F

Right Now

It's May. For Zone 10B: Maintenance and monitoring.

Best Grasses for Zone 10B

Bermudagrass

Bermudagrass

warm-season

The dominant warm-season lawn grass across the Southern United States. Bermudagrass spreads aggressively via stolons and rhizomes, creating an extremely dense turf that handles heat, drought, and heavy traffic. Requires full sun and goes dormant in winter.

Thrives in Zone 10B

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St. Augustinegrass

St. Augustinegrass

warm-season

The most shade-tolerant warm-season grass, St. Augustinegrass is the go-to lawn grass for coastal Southern areas from the Carolinas to Texas. It spreads via stolons to form a thick, coarse-textured turf. Propagated by sod or plugs rather than seed.

Thrives in Zone 10B

Seashore Paspalum

Seashore Paspalum

warm-season

The most salt-tolerant turfgrass available, seashore paspalum thrives in coastal environments where salt spray, brackish irrigation water, or saline soils would kill other grasses. Popular on oceanfront golf courses and coastal properties. Typically established from sod or sprigs.

Thrives in Zone 10B

Dichondra

Dichondra

warm-season

Not a true grass but a ground cover with small, round, lily-pad-shaped leaves that forms a soft, dense carpet. Dichondra is popular as a lawn alternative in mild Southern California and desert Southwest climates. It handles shade well but cannot tolerate foot traffic or cold winters.

Thrives in Zone 10B

Seasonal Calendar — Zone 10B

Jan

Feb

Warm seeding, Spring fert

Mar

Warm seeding

Apr

Warm seeding

Now

May

Warm seeding

Jun

Warm seeding

Jul

Warm seeding

Aug

Sep

Oct

Nov

Overseeding

Dec

Overseeding, Fall fert

About Zone 10B

USDA Zone 10B is classified as a subtropical hardiness zone with average annual extreme minimum temperatures of 35° to 40°F. This temperature range determines which grass species can survive winter conditions and influences seeding windows, fertilizing schedules, and overall lawn care strategy.

This zone appears in 2 states: CA, FL.

Find the Perfect Grass Seed for Zone 10B

Browse premium grass seed varieties matched to your climate zone.

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