What Type of Soil Is in Atlanta, GA (30301)?
Maps show what is typical for Atlanta, GA. A home test kit tells you the pH and nutrient levels of your yard.As an Amazon Associate, we earn from qualifying purchases.
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| Soil Type | Clay |
|---|---|
| Soil Series | Cecil |
| pH Range | 4.8 - 6.2 (Moderately Acidic) |
| Drainage | Well Drained |
| Organic Matter | 2.4% (Moderate) |
| Water Holding Capacity | 0.14 in/in (Moderate) |
| USDA Zone | Zone 7b (min 5°F) |
| Hydrologic Group | B |
What This Means for Your Garden
The dominant soil in Atlanta, GA is Clay soil. Clay soils are known for being heavy and dense. They hold nutrients and moisture well, which is great for plants during dry spells, but they can become waterlogged after heavy rain. Working organic matter into clay soil helps improve its structure and drainage over time.
The pH in your area ranges from 4.8 - 6.2, which is classified as Moderately Acidic. Acidic soil works well for blueberries, potatoes, and azaleas. If you need to raise the pH for other crops, agricultural lime is the standard amendment.
Your USDA hardiness zone is 7b, meaning winter lows can reach around 5 degrees Fahrenheit. This determines which perennials, trees, and shrubs will survive winter in your area. Check the plant recommendations below for varieties suited to both your soil and climate.
Best Plants for Your Soil & Zone
These plants thrive in Clay soil and USDA zone 7b.
Vegetables
Flowers
Herbs
Trees
How to Improve Your Soil
Here are the top amendments recommended for Clay soil:
- Compost — Improves structure, drainage, and microbial activity
- Gypsum (sodic clay only) — Replaces sodium with calcium in sodic clay; does little for typical garden clay
- Coarse Sand — Improves drainage when combined with compost
- Aged Bark Mulch — Adds organic matter gradually as it decomposes
Test before you amend
Our data is drawn from USDA soil surveys, so it describes the dominant soil across an area — useful for planning, not precise enough for dosing lime or fertiliser. Before you buy amendments for Atlanta, GA, run a test on the bed you actually garden: pH and N-P-K vary from one end of a yard to the other.
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Nearby Areas
Frequently Asked Questions
What type of soil is in Atlanta, GA (30301)?
30301 has Clay soil based on USDA soil survey data. It is well drained with a pH range of 4.8 - 6.2.
What USDA hardiness zone is 30301?
Atlanta, GA (30301) is in USDA hardiness zone 7b, with minimum winter temperatures around 5 degrees Fahrenheit.
What grows well in Clay soil?
Clay soil works well for many common garden plants. Check the plant recommendations section above for vegetables, flowers, herbs, and trees that thrive in this soil type and zone 7b.
How do I improve Clay soil for gardening?
The best approach is to add organic matter such as compost, aged manure, or leaf mold. See our full amendment guide for Clay soil for step-by-step instructions.
Where does this soil data come from?
All soil data on MySoilType comes from the USDA Natural Resources Conservation Service (NRCS) Web Soil Survey, the most comprehensive source of soil information in the United States.