Warm-season grass
Seashore Paspalum Grass Lawn Care Schedule
Seashore paspalum is a warm-season grass with an unmatched tolerance for salt — it can be irrigated with brackish or reclaimed water and thrives on coastal sites that would kill most turf. Fine-textured and capable of a low, dense, bermuda-like cut, it makes a beautiful lawn or sports surface in frost-free coastal climates, as long as you can manage its water and its tendency to thatch.
- Type
- Warm-season
- Mowing height
- 0.5–2″
- Nitrogen budget
- 2–4 lbs N / 1,000 sq ft / yr
- Growth habit
- Spreading (self-repairs)
- Shade tolerance
- Moderate
- Drought tolerance
- Moderate
- Traffic tolerance
- High
- USDA zones
- 9–10
Get region-specific timing
Pick your USDA hardiness zone for a Seashore Paspalum schedule with timing shifted to your local season:
Key care windows
Timing windows are flexible (early / mid / late) and tuned to a typical transition-zone season — soil temperature and your local weather should always have the final say.
Spring pre-emergent (crabgrass)
Apply a pre-emergent herbicide as soil temperatures climb through the low 50s°F — before they reach the ~55°F at which crabgrass germinates — to stop summer weeds before they start. 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.
Spring green-up & first mow
Warm-season turf begins breaking dormancy as soil temperatures reach about 55°F, but it isn't actively growing until the soil warms to roughly 65°F. 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 and growing.
First feeding
Make the first fertilizer application 2–4 weeks after full green-up, once the lawn is actively growing. Feed less than you would bermuda — about 2–4 lbs of nitrogen per 1,000 sq ft per year. Seashore paspalum holds good color at lower nitrogen, and over-feeding is a fast track to thatch and disease rather than a better lawn.
Seashore paspalum needs LESS nitrogen than bermuda — keep each feeding at or below ~1 lb per 1,000 sq ft and stay near the low end of the annual budget, since over-feeding drives thatch and disease. Confirm any herbicide is labeled for paspalum. 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.
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.
Summer feeding program
Summer is the warm-season growth peak. Feed less than you would bermuda — about 2–4 lbs of nitrogen per 1,000 sq ft per year. Seashore paspalum holds good color at lower nitrogen, and over-feeding is a fast track to thatch and disease rather than a better 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.
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.
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.
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.
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 Seashore paspalum, month by month.
| Month | Season | What to do |
|---|---|---|
| January | Winter· dormant |
|
| February | Winter |
|
| March | Spring |
|
| April | Spring |
|
| May | Spring |
|
| June | Summer |
|
| July | Summer |
|
| August | Summer |
|
| September | Fall |
|
| October | Fall |
|
| November | Fall· dormant |
|
| December | Winter· dormant |
|
Seashore Paspalum care guide
Mowing
Seashore paspalum takes a low cut — 0.5–2", lower with a reel mower for a show surface. It builds thatch quickly at low heights, so mow frequently, keep the blade sharp, and plan on periodic dethatching or topdressing.
Watering
Paspalum's signature trait is salt tolerance: it can be watered with brackish or reclaimed water that would harm other lawns. It has only moderate drought tolerance, so give it about 1" of water per week — and an occasional deeper flush helps move salts through the root zone on salty sites.
Fertilizing
Feed less than you would bermuda — about 2–4 lbs of nitrogen per 1,000 sq ft per year. Seashore paspalum holds good color at lower nitrogen, and over-feeding is a fast track to thatch and disease rather than a better lawn.
Weed control
A healthy paspalum stand is dense enough to resist most weeds. Its salt tolerance even allows salt-based weed management on some sites, but use only products labeled for seashore paspalum and at its rate — confirm the label before spraying.
Strengths
- Exceptional salt tolerance — takes brackish or reclaimed irrigation and coastal spray
- Fine texture; mows low and dense for a show-quality surface
- Good wear tolerance and recovery
Watch out for
- Not cold-hardy — frost-free coastal zones only
- Thatches readily and needs dethatching or topdressing
- Needs less nitrogen than bermuda — over-feeding brings thatch and disease
Common Seashore Paspalum lawn problems
Browning, patches, or pests on a seashore paspalum lawn? These guides help you diagnose what's actually wrong and what to do about it — safely, before you treat.
- Chinch bugsSpreading brown in the hottest, driest part of the lawn.
- ArmywormsGreen to brown in days — the late-summer caterpillar that eats lawns.
- GrubsSpongy turf that lifts like carpet — and how to confirm it.
- Lawn fungus & diseaseBrown patch, dollar spot, and the conditions that cause them.
- Brown patchesRound, spreading, or random — what brown patches are telling you.
- Dead or dormant?Tell a stressed-but-alive lawn from one that won't come back.
A starting point — your plan adjusts to your yard
This Seashore Paspalum schedule is a research-based template for your grass type. Your lawn is one of a kind, though: the right timing and amounts also depend on your soil test, sun and shade, irrigation, lawn size, and the goals you set — a low-input yard, the deepest possible color, or just crowding out weeds. YardLedger takes this template and adjusts it to your yard's specific needs, then keeps refining it from the history of what you've actually done and how the lawn responded — so every recommendation gets more personal over time.
Safety first
Seashore paspalum needs LESS nitrogen than bermuda — keep each feeding at or below ~1 lb per 1,000 sq ft and stay near the low end of the annual budget, since over-feeding drives thatch and disease. Confirm any herbicide is labeled for paspalum.
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.