Tampa Landscaping Pros · Hydroseeding, slope plantings and retaining walls for yards in Tampa, St. Petersburg, Clearwater, Dunedin and Temple Terrace.
This page is for yards where soil or seed washes out on a slope or after heavy rain. Tampa's normal year brings 49.48 inches of rain, and 30.24 inches of it, about 61 percent, falls from June through September (NOAA climate normals, Tampa International Airport). If the water that cut the washout still has the same path, the next storm uses it again. Our crew comes out and measures your yard, and you get a written price before any work starts.
The right fix depends on the water's path, so this page covers what drives washouts here, what you can check yourself, how a slope gets stabilized, what the national price ranges are and when to schedule the work. Seeding jobs are covered on our hydroseeding page.
Checklist
Why soil washes away in Tampa yards, and what to check
Most of the year's rain in four months
Tampa averages about 69 days a year with a tenth of an inch of rain or more. The rainy season runs from May 25 to October 10 in the Tampa Bay area, and rain coverage rises quickly in June. August is the wettest month, with 9.03 inches in a normal year. The Atlantic hurricane season runs June 1 to November 30 and peaks around September 10, so it overlaps the rainy season.
Sandy, compacted soil
UF/IFAS says North and Central Florida soils are typically very sandy and do not hold water or nutrients well. UF/IFAS Extension Hillsborough County adds that urban development in Tampa and Hillsborough County often leaves compacted, nutrient-poor sandy soil. Compacted soil leads to shallow roots and poor drainage, and UF/IFAS says it is common around newly built homes, where goosegrass is a sign of it.
Slopes steeper than a lawn is graded for
UF/IFAS Extension Hillsborough County advises grading a lawn 1% to 2% away from buildings or toward drains and avoiding slopes steeper than 3 to 1. Steeper than that risks mower rollover, so it says to use groundcover there.
A new seeding that is still establishing
This Old House says hydroseeded grass can sprout in as little as 7 to 10 days, depending on the grass. The first mow comes after about 4 weeks, and a hardy, healthy lawn takes about 2 months. The mulch in a hydroseed slurry helps bond the seed to the soil. In Tampa, where the rainy season runs May 25 to October 10, a washout on ground seeded in the last 2 months is on a lawn that has not finished establishing, so ask the crew to check the water's path before anyone reseeds.
Ground that stays wet
UF/IFAS describes many Florida flatwoods soils as having a weakly cemented organic hardpan, usually 12 to 40 inches down, with a water table that rises to within 5 to 20 inches of the surface. That is why some Tampa yards pond after rain. If water sits instead of running off, read about standing water in your yard.
What to check before anyone digs
If you see gullies in the lawn after rain, walk the yard right after the next hard rain with these questions in hand.
- Where do your downspouts empty? UF/IFAS says downspouts can be pointed into planted areas, so one that ends on bare ground is worth a second look.
- How steep is the bank? The 3 to 1 limit above is the line between lawn and groundcover.
- Can you push a tool into the soil? If you struggle to push one more than a few inches in, UF/IFAS says the root zone is likely compacted.
- What is growing in the wet spots? Sedges, doveweed, dollarweed and eclipta point to soggy soil and may signal a sprinkler leak or poor drainage, according to UF/IFAS.
Before you trench a swale or regrade by hand, Florida law requires a call to Sunshine 811 at least 2 full business days before digging, and the locate ticket is good for 30 calendar days. Hold off on fertilizer too. In Tampa, lawn and landscape fertilizer with nitrogen or phosphorus may not be applied from June 1 to September 30, and the Hillsborough EPC rule that applies in Tampa bars fertilizer within 10 feet of water.
How erosion control for a slope gets fixed
Ask for an on-site look so the crew can see where the water comes from before choosing sod, groundcover or seed.
Groundcover and runoff catchers
UF/IFAS Florida-Friendly Landscaping says to plant groundcovers in erosion-prone areas and keep rainwater in the yard instead of letting it run off. Rain gardens, swales and berms catch and filter runoff, porous patios and walkways let water soak in, and downspouts can be pointed into planted areas.
Hydroseeding a bank
Hydroseeding sprays grass seed, mulch, water and fertilizer, often with biostimulants and a green dye, onto the soil. The soil is graded about 2.5 to 3 inches below the final grade you want, which keeps the slurry from reaching the house. UF/IFAS names bahiagrass and bermudagrass as the best Florida lawn grasses to start from seed, and puts the seeding window for warm-season grass at April to July in most of Florida. June and July fall inside Tampa's rainy season. If your job falls between June 1 and September 30, ask the crew what fertilizer goes into the slurry, since Tampa bars nitrogen and phosphorus on lawns in those months.
Sod or plugs
St. Augustinegrass and zoysiagrass are planted as sod or plugs. This Old House puts sod at $250 to $620 more than hydroseed for a 1,000-square-foot lawn (national figure). UF/IFAS says spring is usually the ideal time to lay sod in Florida, though sod can root in any season if the ground is well prepared, and summer heat can quickly dry out rootless new sod. Lay sod within 24 hours of delivery and water it lightly and often for the first 2 to 3 weeks. New sod in Tampa still may not be watered between 4 a.m. and 8 p.m.
Regrading, drains and retaining walls
Resloping a yard before hydroseeding runs $700 to $2,500 per project nationally. For water that has to be carried away, a French drain in the yard runs $20 to $40 per linear foot nationally (Bob Vila, 2024). A retaining wall on a slope runs $40 to $200 per linear foot nationally (Bob Vila).
Bob Vila says a block retaining wall should lean back at least 1 inch for every foot of height, with crushed stone backfill and a perforated pipe that carries water out at the ends of the wall. Tampa wall building plans must be signed and sealed by a Florida licensed architect or engineer, except perimeter walls without columns or lintels. The City of Tampa fee schedule lists $475 for a residential privacy or retaining wall permit, plus the state surcharge of 2.5% of the permit value, $4 minimum. Tampa Landscaping Pros pulls the City permit when the job needs one.
Checklist
What it costs, when to schedule it and how to compare quotes
What the fixes cost
| Fix | National range | Source |
|---|---|---|
| Hydroseeding, per square foot | $0.06 to $0.20 | This Old House |
| Reslope a yard before hydroseeding | $700 to $2,500 per project | National range |
| Sod instead of hydroseed, 1,000 square feet | $250 to $620 more | This Old House |
| French drain in the yard | $20 to $40 per linear foot | Bob Vila, 2024 |
| Retaining wall on a slope | $40 to $200 per linear foot | Bob Vila |
| Whole retaining wall project | $3,199 to $9,196, average $6,060 | Bob Vila |
| Topsoil; fill dirt | $12 to $55; $5 to $15 per cubic yard | Bob Vila, 2023 |
| Residential retaining wall permit in Tampa | $475 plus the state surcharge | City of Tampa |
Wall material moves the price. This Old House gives $15 to $30 per square foot of wall face for a timber wall, $30 to $50 for poured concrete and about $45 to $270 for interlocking block, installed, depending on block layout and site (national ranges). Drainage labor runs $50 to $100 an hour nationally (Bob Vila, 2024). For a hydroseeding job here, ask for a price per square foot and the job minimum before the crew sprays. For the wider picture, see what landscaping costs in Tampa.
Timing the repair around Tampa's rain
November is the driest month, with 1.40 inches of rain in a normal year. Tampa water customers may water lawns once a week, on a day set by the last digit of the house number (0-1 Monday, 2-3 Tuesday, 4-5 Wednesday, 6-7 Thursday, 8-9 Friday), and only from midnight to 4 a.m. or 8 p.m. to 11:59 p.m. The order runs until March 31, 2027, and its limits apply to homes on private wells too. Breaking the rules can bring fines up to $500 and a mandatory court appearance.
Hand watering and micro-irrigation of plant beds is allowed any day in Tampa, but not between 8 a.m. and 6 p.m. Aftercare for hydroseed calls for watering 2 to 3 times a day for the first few weeks, then less but still more than usual for the next 6 to 7 weeks (This Old House). Ask for the watering plan in writing and how it fits the one-day-a-week order.
Getting a written price for a washout fix
BBB says a company that quotes without seeing the yard cannot know what it needs, so get a price after an on-site look. Our crew comes out, measures and gives a written price before any work starts, so you can set it beside other bids. The FTC says a written estimate should list the work, the materials, the completion date and the price. Compare bids for the same work, and ask for an explanation if the estimates differ a lot.
Ask for a written start date and finish date with the quote. Ask for the workmanship warranty in writing, with what it covers and for how long. A Florida residential contract over $2,500 must carry a lien warning, so ask for a written release of lien. The FTC advises against paying the full amount up front or making the final payment until the work is done and you are satisfied.
Questions about yard erosion in Tampa
Why does soil keep washing away in my Tampa yard?
Often because Tampa's rain comes in a short wet season, with 30.24 of the year's 49.48 inches falling from June through September, onto soil that is sandy and frequently compacted. To pick the fix, ask for an on-site look so the crew can see where the water comes from before choosing sod, groundcover or seed.
What is the best erosion control for a slope?
That depends on how steep the bank is and what is causing the washout. UF/IFAS says to use groundcover on slopes steeper than 3 to 1. The options on this page are groundcover, seed or sod, drains and a retaining wall.
How much does it cost to fix yard erosion in Tampa?
Nationally, hydroseeding runs $0.06 to $0.20 per square foot (This Old House), and a retaining wall on a slope runs $40 to $200 per linear foot (Bob Vila). For your yard, our crew measures it and gives a written price before any work starts.
When should I fix a washed-out lawn in Tampa?
UF/IFAS puts the seeding window for warm-season grass at April to July in most of Florida, and says spring is usually the ideal time to lay sod. Tampa's rainy season starts May 25, and November is the driest month.
Do I need a permit or a utility locate?
Digging needs a call to Sunshine 811 at least 2 full business days ahead, and a residential retaining wall in Tampa carries a $475 permit fee plus the state surcharge (City of Tampa fee schedule). We tell you on the quote whether your seeding job needs anything from the city. We pull the City permit when the job needs one.
Get your slope looked at
Call us or use the form. We call you back within one business day, and our crew comes out and measures. You can also contact Tampa Landscaping Pros to describe where the water runs.
Sources
- NOAA National Centers for Environmental Information (1991-2020 U.S. Climate Normals) (read 2026-11-11)
- NOAA National Centers for Environmental Information (1991-2020 U.S. Climate Normals) (read 2026-11-11)
- National Weather Service, Tampa Bay Area office (read 2026-11-11)
- NOAA National Hurricane Center (read 2026-11-11)
- UF/IFAS Extension Gardening Solutions (read 2026-11-11)
- UF/IFAS Extension Hillsborough County (read 2026-11-11)
- UF/IFAS Gardening Solutions (read 2026-11-11)
- UF/IFAS Gardening Solutions (read 2026-11-11)
- UF/IFAS Extension Hillsborough County (read 2026-11-11)
- This Old House (read 2026-11-11)
- UF/IFAS Florida Land Steward Program (read 2026-11-11)
- UF/IFAS Florida-Friendly Landscaping (read 2026-11-11)
- The Florida Senate (Florida Statutes) (read 2026-11-11)
- City of Tampa (read 2026-11-11)
- UF/IFAS Extension (Gardening Solutions) (read 2026-11-11)
- UF/IFAS Extension Gardening Solutions (read 2026-11-11)
- UF/IFAS Extension Gardening Solutions (read 2026-11-11)
- UF/IFAS News (read 2026-11-11)
- City of Tampa Water Department (read 2026-11-11)
- Hillsborough County (read 2026-11-11)
- Southwest Florida Water Management District (read 2026-11-11)
- Bob Vila (read 2026-11-11)
- Bob Vila (read 2026-11-11)
- This Old House (read 2026-11-11)
- Bob Vila (read 2026-11-11)
- City of Tampa (read 2026-11-11)
- City of Tampa (read 2026-11-11)
- Bob Vila (read 2026-11-11)
- Federal Trade Commission (read 2026-11-11)
- Better Business Bureau (read 2026-11-11)
- Florida Legislature (Florida Statutes) (read 2026-11-11)