Rain Garden Soil Sizing Calculator
Determine the exact amount of soil needed for your rain garden project based on size, depth, and soil composition.
Frequently Asked Questions
Most rain gardens are 6-12 inches deep. Shallower gardens (6-8 inches) work well in sandy soils, while deeper gardens (12 inches) are better for clay soils to improve water infiltration.
Rain garden soil typically lasts 5-7 years. You may need to replenish organic matter annually by adding 1-2 inches of compost to maintain proper drainage and nutrient levels.
No, regular garden soil is too dense. Rain gardens require a special mix (typically 40-60% sand, 40-60% compost) to ensure proper drainage while supporting plant growth.