Rain Garden Calculator
Design the perfect rain garden for your landscape
Site Information
Typical house: 1,000-2,500 sq ft
6″
12″
24″
Typical: 1-2 inches for 24-hour storm
Your Rain Garden Specifications
$1,247
Recommended Area:
0 sq ft
Dimensions (L x W):
0′ x 0′
Volume Needed:
0 cu ft
Ponding Depth:
9 in
Infiltration Time:
9 hrs
Soil Cost:
$0
Plants Cost:
$0
Mulch Cost:
$0
💰 Cost Calculator USD ($)
USD ($)
EUR (€)
GBP (£)
CAD ($)
AUD ($)
JPY (¥)
Soil Indicators
Sandy: Fast draining, needs larger area
Loamy: Ideal for rain gardens
Clay: Slow draining, needs smaller area
Plant Selection Guide
Wet zone: Blue Flag Iris, Cardinal Flower
Moist zone: Joe-Pye Weed, Turtlehead
Dry zone: Black-eyed Susan, Little Bluestem
Maintenance Tips
• Inspect after heavy rains
• Remove sediment buildup
• Water during dry spells
• Mulch annually
Understanding Your Results
Your rain garden should be sized to hold the runoff from a 1-inch rainfall event. The calculated area ensures proper infiltration and prevents standing water. Position your garden at least 10 feet from building foundations and direct downspouts into it. Native plants with deep roots work best for rain gardens!