Monroe County Soil Data
Monroe County, Florida
USDA SSURGO / PHZMAvg pH
N/A
Texture
Unknown
Drainage
N/A
Organic Matter
N/A
Hydrologic Group
N/A
Data Story
About Soil in Monroe County, Florida
Island Rocks and Coral
Precise pH and taxonomic data are unavailable for the rocky soils of the Florida Keys. The local environment is largely coral-based, which typically differs significantly from the national median pH of 6.5.
Thin Soil Over Stone
There are no recorded percentages for sand, silt, or clay in this county. In the Keys, the ground is often a thin layer of organic debris resting directly over solid oolitic limestone.
High Heat, Low Depth
Data for organic matter and water capacity are not present for this region. These figures are usually quite low in Monroe, as the rocky terrain has very little depth for nutrient or water storage.
Reef-Side Hydrology
The drainage class and hydrologic group for this county are not currently cataloged. Understanding how water moves through this landscape is vital for protecting the delicate coral reef systems just offshore.
Warmest Climate in Florida
Hardiness zone 11b represents the warmest climate in Florida, perfect for extreme heat-tolerant species. Gardeners often use raised beds or containers to bypass the lack of deep, natural soil.
Soil Composition
Composition data not available for this county.
Soil pH
pH data not available for this county.
Soil Series
Detailed soil series data not yet available for this county.
Hydrologic Group
Hydrologic group data not available.
Drainage Class
Drainage class data not available.
Soil Profile
Dominant texture: Unknown
Typical soil profile. Actual depths vary by location.
USDA Soil Orders
Soil Amendment Products
Browse products to improve your soil health and lawn performance.
Browse Soil AmendmentsFrequently Asked Questions
What type of soil does Monroe County have?
Monroe County's soil is classified as Unknown. This indicates the relative proportions of sand, silt, and clay — sand percentage unavailable, silt percentage unavailable, and clay percentage unavailable. Sandy soils drain quickly but may need more frequent irrigation and fertilization.
Is Monroe County's soil acidic or alkaline?
pH data is not available for Monroe County.
What is the drainage class for Monroe County?
Drainage class data is not currently available for Monroe County.
What crops or plants grow well in Monroe County's soil?
Based on Monroe County's Unknown texture, soil pH, and drainage class, the soil is well suited for a variety of crops depending on local conditions.
What USDA soil order is found in Monroe County?
The dominant USDA soil order for Monroe County is not currently available in our dataset.
Soil & Planting Advisory: Monroe County
Soil Verdict
Monroe County is in USDA hardiness zone 11b, a very warm climate zone. where winter lows can reach 45°F. Warm winters keep soil biology active nearly year-round, accelerating decomposition but increasing pest and disease pressure in topsoil.
Planting Guidance
Tropical and subtropical plants are viable. Year-round gardening is possible, though summer heat may limit some cool-season crops. Frost is rare; tender plants can overwinter with minimal protection. Always match plant selections to the specific microclimate of your property — low spots, slopes, and wind exposure can shift effective hardiness by half a zone.
Soil Implications
Rapid organic matter turnover means soils can become nutrient-poor quickly; test annually and fertilize based on results. High soil temperatures favor certain soilborne pathogens; practice crop rotation and avoid overwatering.
Regional Context
Monroe County is significantly warmer than the Florida average, shifting effective hardiness by roughly 1.7 zones. The zone range of 11a-11b within the county means soil and planting decisions should account for local elevation and topography.
Planning your lawn? View lawn care data for Monroe County on LawnByCounty.com →
Other Counties in Florida
Soil data sourced from USDA SSURGO via Soil Data Access. Data is informational only and should not be used as a substitute for on-site soil testing. Contact your local NRCS office for site-specific soil information.