Soil series profile

Ladysmith soil series

Ladysmith is a somewhat poorly drained soil with a silty clay loam surface, mapped on 355,110 acres in 22 counties in KS. Hydrologic group D.

#914 by mapped area fine Pachic Udertic Argiustolls (Mollisols)

Drainage class
Somewhat poorly drained
100% of mapped acres
Hydrologic group
D
100% of mapped acres
Typical topsoil pH
5.7
moderately acidic · range 5.7–5.7
Mapped area
355k
acres in 22 counties, 1 state

Typical Ladysmith profile

Texture and pH by depth

Typical Ladysmith soil profile by depth 0 in 20 in 40 in 60 in 0–8 in · Ap · pH 5.7 · 33% clay Silty clay loam 8–36 in · Bt · pH 7.0 · 47% clay Silty clay 36–49 in · BC · pH 7.7 · 42% clay Silty clay 49–79 in · C · pH 7.7 · 42% clay Silty clay
Depth to scale. More strongly shaded layers hold more clay. Horizon names are the soil survey's (A = topsoil, B = subsoil, C = parent material).
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Typical Ladysmith horizons (representative values)
Depth Texture pH Clay Sand Organic matter
0–8 in (Ap) Silty clay loam 5.7 33% 7% 3%
8–36 in (Bt) Silty clay 7.0 47% 6% 2%
36–49 in (BC) Silty clay 7.7 42% 6% 0.7%
49–79 in (C) Silty clay 7.7 42% 7% 0.5%

Representative values from the most extensive Ladysmith map unit (Ladysmith silty clay loam, 0 to 1 percent slopes, survey area KS113). Other map units of this series vary within the series range.

Hands holding dark garden soil
Stock photo for illustration, not a sample of this soil series. Credit on the Sources & method page.

What this means

What Ladysmith soil means for gardens, lawns and septic systems

For gardens

Typical topsoil in Ladysmith soils is moderately acidic: pH 5.7. Many vegetables grow well here, and some gardens benefit from a little lime. Test before adding any.

Loamy topsoil (loam, silt loam and similar) covers 100% of mapped Ladysmith acres: generally the easiest soil to garden, holding moisture without staying waterlogged. The most common surface texture is silty clay loam (100% of mapped Ladysmith acres).

100% of mapped Ladysmith acres is somewhat poorly to very poorly drained, so soil stays soggy for long spells after rain and in wet seasons. Raised beds, plants that tolerate wet feet, and not working the soil while wet all help.

For lawns and yards

On 100% of mapped acres, rain soaks in slowly (hydrologic groups C and D, including dual groups that are D until drained). Expect runoff and puddles after heavy rain: core-aerate compacted lawns and keep ground sloping away from foundations.

For a septic system

For conventional septic absorption fields, NRCS rates 100% of the acres in mapped Ladysmith soils very limited, 0% somewhat limited and 0% not limited.

Where the soil is very limited (slow permeability, a high water table, flooding, shallow bedrock or steep slopes), alternative systems such as mound or sand-filter designs are common and cost more.

Only a licensed site evaluation or perc test at the actual lot decides whether a system is allowed and which design.

Generated from the mapped numbers above using fixed rules, not a site visit. See how these notes are written.

Where Ladysmith soil is found

Mapped acres

Ladysmith is mapped in Kansas.

Counties with the most mapped Ladysmith soil
County Acres Share of county land
McPherson County, KS 72,840 12.7%
Harvey County, KS 72,294 20.9%
Lyon County, KS 41,234 7.6%
Butler County, KS 39,509 4.3%
Morris County, KS 34,318 7.7%
Shawnee County, KS 30,353 8.6%
Marion County, KS 27,297 4.5%
Wabaunsee County, KS 12,071 2.4%
Chase County, KS 7,085 1.4%
Marshall County, KS 7,000 1.2%
Geary County, KS 5,268 2.1%
Sedgwick County, KS 3,362 0.5%
Reno County, KS 682 0.1%
Dickinson County, KS 668 0.1%
Osage County, KS 529 0.1%
Cowley County, KS 482 0.1%
Rice County, KS 71 0.0%
Sumner County, KS 20 0.0%
Saline County, KS 11 0.0%
Jackson County, KS 9 0.0%
Elk County, KS 4 0.0%
Greenwood County, KS 0 0.0%

Septic absorption fields

NRCS rating, share of Ladysmith acres

Not limited 0%
Somewhat limited 0%
Very limited 100%
Septic tank absorption field rating across mapped Ladysmith acres. Scale 0 to 100% of mapped land.
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Septic tank absorption field rating across mapped Ladysmith acres.
CategoryShare of acres
Not limited0.0%
Somewhat limited0.0%
Very limited100.0%

Drainage, water table and flooding

Share of Ladysmith acres

Depth to seasonal high water table
About 2.5 feet (30 in) (median where reported).
Flooding
Not mapped as flooding on most acres.
Slope
Typically 1–2% (median 1%).
Topsoil organic matter
Median 3%.

Drainage class

Excessively drained 0%
Somewhat excessively drained 0%
Well drained 0%
Moderately well drained 0%
Somewhat poorly drained 100%
Poorly drained 0%
Very poorly drained 0%
Drainage class across mapped Ladysmith acres. Scale 0 to 100% of mapped land.
Show as a table
Drainage class across mapped Ladysmith acres.
CategoryShare of acres
Excessively drained0.0%
Somewhat excessively drained0.0%
Well drained0.0%
Moderately well drained0.0%
Somewhat poorly drained100.0%
Poorly drained0.0%
Very poorly drained0.0%

Hydrologic soil group

A: fast infiltration (mostly sandy or gravelly) 0%
B: moderate infiltration 0%
C: slow infiltration 0%
D: very slow infiltration (clayey, shallow or wet) 100%
A/D: D as is, A if drained 0%
B/D: D as is, B if drained 0%
C/D: D as is, C if drained 0%
Hydrologic soil group across mapped Ladysmith acres. Scale 0 to 100% of mapped land.
Show as a table
Hydrologic soil group across mapped Ladysmith acres.
CategoryShare of acres
A: fast infiltration (mostly sandy or gravelly)0.0%
B: moderate infiltration0.0%
C: slow infiltration0.0%
D: very slow infiltration (clayey, shallow or wet)100.0%
A/D: D as is, A if drained0.0%
B/D: D as is, B if drained0.0%
C/D: D as is, C if drained0.0%

Sources & data dates

Source
USDA NRCS Soil Survey Geographic Database (SSURGO), queried through Soil Data Access. Public domain.
Data date
SSURGO as published on November 3, 2026 (most recent survey area update October 26, 2026). NRCS refreshes SSURGO each October.
Scope
All map unit components named Ladysmith (component kind "Series") in SSURGO: 355,110 acres.
Method
Shares are by mapped acres of Ladysmith components. The profile comes from the single largest Ladysmith component. Full methodology.

Independent reference site. No government affiliation or endorsement.

Full narrative description: USDA Official Soil Series Description for Ladysmith.