Each score is derived from official soil horizon data and four environmental dimensions specific to your address.
Soil Texture
The ratio of sand, silt, and clay in your soil horizon. Determines water retention, root penetration, and compaction tendency.
Drainage Profile
How quickly water moves through the soil column. Affects root oxygen levels, disease pressure, and nutrient leaching rates.
Climate Context
Historical precipitation, freeze cycles, and heat accumulation mapped to your local microclimate. Lawn stress is seasonal before it becomes visible.
Environmental Load
Slope gradient, runoff potential, and surface organic matter. These factors compound over time and are invisible to standard lawn care advice.