Soil series profile
Honeygrove soil series
Honeygrove is a well drained soil with a silty clay loam surface, mapped on 176,030 acres in 8 counties in OR. Hydrologic group C.
- Drainage class
- Well drained 100% of mapped acres
- Hydrologic group
- C >99% of mapped acres
- Typical topsoil pH
- 5.5 strongly acidic · range 5.2–5.5
- Mapped area
- 176k acres in 8 counties, 1 state
Typical Honeygrove profile
Texture and pH by depth
Show as a table
| Depth | Texture | pH | Clay | Sand | Organic matter |
|---|---|---|---|---|---|
| 0–1 in (Oi) | Slightly decomposed plant material | 4.5 | 15% | 50% | 75% |
| 1–14 in (H1) | Silty clay loam | 5.5 | 35% | 17% | 6.5% |
| 14–75 in (H2) | Silty clay | 5.0 | 55% | 3% | 2.75% |
What this means
What Honeygrove soil means for gardens, lawns and septic systems
For gardens
Typical topsoil in Honeygrove soils is strongly acidic: pH 5.5 (most land between 5.2 and 5.5). Most vegetables and lawn grasses do best around 6.0 to 7.0, so lime is often needed; blueberries, azaleas and rhododendrons like it as it is.
Loamy topsoil (loam, silt loam and similar) covers 100% of mapped Honeygrove acres: generally the easiest soil to garden, holding moisture without staying waterlogged. The most common surface texture is silty clay loam (67% of mapped Honeygrove acres).
100% of mapped Honeygrove acres is moderately well to excessively drained, which suits most garden plants.
For lawns and yards
On >99% 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 Honeygrove 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.
Where Honeygrove soil is found
Mapped acres
Honeygrove is mapped in Oregon.
| County | Acres | Share of county land |
|---|---|---|
| Linn County, OR | 51,684 | 6.1% |
| Douglas County, OR | 44,894 | 2.5% |
| Lane County, OR | 35,740 | 2.3% |
| Benton County, OR | 17,917 | 4.7% |
| Coos County, OR | 12,776 | 1.5% |
| Polk County, OR | 9,911 | 2.4% |
| Curry County, OR | 1,931 | 0.2% |
| Lincoln County, OR | 1,178 | 0.2% |
Septic absorption fields
NRCS rating, share of Honeygrove acres
Show as a table
| Category | Share of acres |
|---|---|
| Not limited | 0.0% |
| Somewhat limited | 0.0% |
| Very limited | 100.0% |
Drainage, water table and flooding
Share of Honeygrove acres
- Depth to seasonal high water table
- None reported within about 6.5 feet (median where reported).
- Flooding
- Not mapped as flooding on most acres.
- Slope
- Typically 14–45% (median 19%).
- Topsoil organic matter
- Median 6.5%.
Drainage class
Show as a table
| Category | Share of acres |
|---|---|
| Excessively drained | 0.0% |
| Somewhat excessively drained | 0.0% |
| Well drained | 100.0% |
| Moderately well drained | 0.0% |
| Somewhat poorly drained | 0.0% |
| Poorly drained | 0.0% |
| Very poorly drained | 0.0% |
Hydrologic soil group
Show as a table
| Category | Share of acres |
|---|---|
| A: fast infiltration (mostly sandy or gravelly) | 0.0% |
| B: moderate infiltration | 0.0% |
| C: slow infiltration | 99.4% |
| D: very slow infiltration (clayey, shallow or wet) | 0.0% |
| A/D: D as is, A if drained | 0.0% |
| B/D: D as is, B if drained | 0.0% |
| C/D: D as is, C if drained | 0.0% |
| Not rated | 0.6% |
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 Honeygrove (component kind "Series") in SSURGO: 176,030 acres.
- Method
- Shares are by mapped acres of Honeygrove components. The profile comes from the single largest Honeygrove component. Full methodology.