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TurnKey Grass lays St. Augustine, Bermuda, zoysia and centipede here with our own crews, and the right grass depends on your soil, your sun and how the ground handles a wet winter.
Here’s how the city’s two soils split, and what each one means for a new lawn.
Harahan is a small river town. It covers about 2 square miles of land, and roughly a fifth of the area inside city limits is the Mississippi River itself. The federal soil survey splits the dry ground almost evenly between two soils, and you won’t find the soft marsh muck that sits under lakeside parts of the east bank anywhere in town.
One oddity worth knowing: there really is a soil called Harahan clay, but its type location is on the West Bank, and it covers only about 1% of the city. The name tells you nothing about your own yard.
Cancienne soils, the river half: Silt loam and silty clay loam built up on the river’s natural levee. NRCS rates them somewhat poorly drained, with water perched 1.5 to 4 feet down from December through April. The soil survey’s typical surface reading is about pH 5.7, which is slightly acid.
Schriever clay, the back half: A dense clay from the old backswamp behind the levee that shrinks as it dries and swells when wet. It drains very slowly and stays saturated within 6 inches of the surface through winter and early spring in normal years. Its typical surface reading is about pH 7.3.
Batture and levee strips: About an eighth of the land is frequently flooded ground along the river and the levee itself. That’s river land, and nobody lays a lawn on it.
02 · Harahan
How do Harahan neighborhoods line up with those soils?
We looked up the soil mapped at the center of several subdivisions recorded in the city’s own parcel records. A center point isn’t your lot, so use this as a first guess and let a soil test and the yard visit settle it.
Neighborhood
Soil at its center
What that means for sod
Grass to look at first
West Imperial
Cancienne silt loam
Better-drained ground toward the river end of town
Bermuda in full sun, centipede where it tests acid
Roseland Park
Cancienne silty clay loam
Slightly acid surface; somewhat poorly drained, but better than the clay
Centipede or Bermuda in sun, St. Augustine in shade
Royland
Schriever clay
Soggy near the surface in winter, so grade matters
St. Augustine or zoysia, with drainage prep
Colonial Estates
Schriever clay
Slow-draining, near neutral or alkaline
St. Augustine; centipede is a poor match
Anna Terrace
Schriever clay
Backswamp ground at the north end of the city
St. Augustine or zoysia
Harahan Oaks, Glenwood Park
Schriever clay
Same clay, so shade becomes the deciding factor
St. Augustine under trees, zoysia in part sun
03 · Harahan
What sets a Harahan yard apart?
01
Older homes on settled lots
About three in four Harahan homes are owner-occupied, and nearly 8 in 10 are detached single-family houses. The typical home dates from the mid-1970s, and about one in five was built in the 1950s. On a lot that old, the visit tells us more than a tape measure does.
02
Hardwood ground
NRCS lists bottomland hardwoods as the native cover on this levee and backswamp land. If big trees shade your lawn today, that pushes the choice toward the shade-tolerant grasses.
03
Wet winters, hot summers
The airport weather station about 5 miles northwest averages about 63 inches of rain a year, with June the wettest month. July highs average about 91 F and January lows about 46 F. ZIP 70123 sits in USDA zone 9b.
04
Levees and pumps
Harahan sits on levee-protected, pumped ground, and the Jefferson Parish drainage department runs canals, street drains and 72 pump stations across the parish. A low spot inside your own fence is still yours to correct before new sod goes down.
Our own crews do the work, start to finish. We walk the yard with you, check sun, drainage and access, and price the job once we’ve seen it. Prep can include clearing old grass and weeds, loosening the soil and filling low spots, and your estimate spells out which of those your yard needs. The Harahan sod installation page covers prep for each soil, and our sod installation service page explains the full process.
Get a new lawn started in Harahan
Whether you’re on Schriever clay in Royland or river loam in West Imperial, we’ll match the grass to your ground and your shade. Ask for a free estimate and we’ll set up a visit, measure the yard and talk through which of the four grasses makes sense.