Warm-season grass • USDA Zone 10

Zoysia Grass Lawn Care Schedule — USDA Zone 10

Zoysia is a warm-season grass that forms a thick, carpet-like lawn and tolerates more cold and light shade than most of its relatives, which lets it stretch into the transition zone. It is slow to establish and slow to recover, but once dense it crowds out most weeds. This schedule is tuned for USDA hardiness zone 10 — warm, frost-free winters (average lows around 30 to 40°F). Green-up, fertilizing, and pre-emergent timing all shift with your winter low temperatures, so the windows below are tuned for this zone.

Type: Warm-season
Mowing height: 0.75–2″
Nitrogen budget: 2–3 lbs N / 1,000 sq ft / yr
Growth habit: Spreading (self-repairs)
Shade tolerance: Moderate
Drought tolerance: High
Traffic tolerance: High
Winter low: average lows around 30 to 40°F

Different zone?

See the Zoysia schedule for another USDA hardiness zone, or the full Zoysia care guide.

Key care windows for Zone 10

Timing windows are flexible (early / mid / late) and tuned to Zone 10's season — soil temperature and your local weather should always have the final say.

early January to late January

Spring pre-emergent (crabgrass)

Apply a pre-emergent herbicide as soil temperatures approach 55°F to stop crabgrass and other summer weeds before they germinate. A second application 6–8 weeks later extends control through the season.

Don't apply a pre-emergent if you plan to seed — it blocks grass seed too. Always read and follow the product label — it is the legal authority on rates, timing, and safety. These windows are regional estimates, not a prescription; defer to the label and your local extension office.

early January to early February

Spring green-up & first mow

As soil temperatures reach about 55°F the lawn breaks dormancy and greens up. Once it's about half green, mow low to clear dormant material and let sunlight reach the crowns. Don't fertilize until it's at least 80% green.

early March to late March

First feeding

Make the first fertilizer application 2–4 weeks after full green-up, once the lawn is actively growing. Zoysia needs less nitrogen than bermuda — roughly 2–3 lbs per 1,000 sq ft per year, split across the summer growing season. Over-feeding accelerates thatch buildup without improving the lawn.

Resist the urge to push zoysia with extra nitrogen — excess feeding drives thatch, not color. Keep any single feeding at or below ~1 lb of nitrogen per 1,000 sq ft. Always read and follow the product label — it is the legal authority on rates, timing, and safety. These windows are regional estimates, not a prescription; defer to the label and your local extension office.

mid-March to early May

Aeration & dethatching

Core-aerate (and dethatch if the thatch layer is over about ½") during the peak growing season, when warm-season turf recovers fastest. Avoid aerating dormant or drought-stressed turf.

mid-April to early July

Summer feeding program

Summer is the warm-season growth peak. Zoysia needs less nitrogen than bermuda — roughly 2–3 lbs per 1,000 sq ft per year, split across the summer growing season. Over-feeding accelerates thatch buildup without improving the lawn. Spread the annual budget across the season rather than applying it all at once.

Never exceed ~1 lb of nitrogen per 1,000 sq ft in a single feeding. Always read and follow the product label — it is the legal authority on rates, timing, and safety. These windows are regional estimates, not a prescription; defer to the label and your local extension office.

mid-April to early July

Summer weed & pest watch

Spot-treat broadleaf weeds during active growth, never on drought-stressed turf. Watch for insect and disease pressure in hot, humid weather and treat problem areas rather than the whole lawn.

late October to mid-November

Final feeding & soil test

Give a final feeding in early fall, then stop nitrogen — late-season nitrogen pushes tender growth into frost. Fall is also the best time to take a soil test so amendments are ready before spring.

Stop nitrogen about 6 weeks before your first expected frost. Always read and follow the product label — it is the legal authority on rates, timing, and safety. These windows are regional estimates, not a prescription; defer to the label and your local extension office.

mid-November to early December

Fall pre-emergent (winter weeds)

A fall pre-emergent applied before soil cools below about 70°F controls winter annual weeds like Poa annua and henbit.

Always read and follow the product label — it is the legal authority on rates, timing, and safety. These windows are regional estimates, not a prescription; defer to the label and your local extension office.

late November to mid-December

Optional winter overseed

For green color over winter dormancy, you can overseed with perennial ryegrass once soil cools below about 70°F. It's optional and adds maintenance — skip it if you're happy with a dormant, straw-colored lawn.

If you overseed, do not apply a fall pre-emergent — it will stop the ryegrass from germinating.

late December

Winter dormancy

Expect a brown, dormant lawn from first frost until spring green-up. Hold off on fertilizer and pre-emergent. A light watering during extended winter drought helps prevent desiccation.

Month-by-month schedule

A quick at-a-glance plan for Zoysia grass in USDA zone 10, month by month.

Month	Season	What to do
January	Winter	Watch for green-up; do the first low mow to clear winter material. Apply crabgrass pre-emergent before soil reaches ~55°F.
February	Winter	Watch for green-up; do the first low mow to clear winter material.
March	Spring	Make the first feeding once the lawn is fully green and growing. Core-aerate during peak growth; dethatch if thatch is heavy. Mow at 0.75–2" and water deeply as needed.
April	Spring	Core-aerate during peak growth; dethatch if thatch is heavy. Continue the summer feeding program on schedule. Spot-treat weeds and scout for pests; water deeply in heat. Mow at 0.75–2" and water deeply as needed.
May	Spring	Core-aerate during peak growth; dethatch if thatch is heavy. Continue the summer feeding program on schedule. Spot-treat weeds and scout for pests; water deeply in heat. Mow at 0.75–2" and water deeply as needed.
June	Summer	Continue the summer feeding program on schedule. Spot-treat weeds and scout for pests; water deeply in heat. Mow at 0.75–2" and water deeply as needed.
July	Summer	Continue the summer feeding program on schedule. Spot-treat weeds and scout for pests; water deeply in heat. Mow at 0.75–2" and water deeply as needed.
August	Summer	Steady-state: mow at 0.75–2" and water deeply about 1" per week including rain.
September	Fall	Steady-state: mow at 0.75–2" and water deeply about 1" per week including rain.
October	Fall	Make the final feeding of the year; take a soil test. Mow at 0.75–2" and water deeply as needed.
November	Fall	Optionally overseed with ryegrass for winter color. Apply a fall pre-emergent for winter weeds before soil cools. Make the final feeding of the year; take a soil test. Mow at 0.75–2" and water deeply as needed.
December	Winter· dormant	Optionally overseed with ryegrass for winter color. Apply a fall pre-emergent for winter weeds before soil cools. Lawn is dormant — no feeding; water lightly only in extended drought.

Zoysia at a glance

Dense growth naturally chokes out weeds
Best cold tolerance of the common warm-season grasses
Handles moderate shade and foot traffic
Slow to establish and slow to repair damage
Builds thatch — needs periodic dethatching
Turns straw-brown in winter dormancy

For the full Zoysia mowing, watering, fertilizing, and weed-control guide that applies in every zone, see the complete Zoysia lawn care schedule.

Safety first

Resist the urge to push zoysia with extra nitrogen — excess feeding drives thatch, not color. Keep any single feeding at or below ~1 lb of nitrogen per 1,000 sq ft.