Garden Watering Schedule Calculator
Calculate weekly watering needs for your garden based on area, plant type, and local rainfall.
Weekly Watering Needed
125 gallons
Weekly Watering Needed vs Garden Area
Formula
## Garden Watering Needs Most gardens need 1-1.5 inches of water per week from irrigation and rainfall combined. The deficit must be made up with supplemental watering. ### Formula **Deficit (inches) = Weekly Need - Rainfall** **Gallons = Deficit (inches) x Area (sq ft) x 0.623** The factor 0.623 converts inches of water over square feet to gallons (1 inch over 1 sq ft = 0.623 gallons). Water deeply and less frequently to encourage deep root growth.
Esempio Risolto
A 200 sq ft garden needing 1.5 inches/week with 0.5 inches of rain.
- 01Deficit = 1.5 - 0.5 = 1.0 inch
- 02Gallons = 1.0 x 200 x 0.623 = 124.6 gallons per week
- 03At 1 GPM sprinkler: about 125 minutes of watering
Domande Frequenti
How much water do different plants need?
Vegetables and annuals: 1-1.5 inches/week. Established perennials: 0.5-1 inch. Lawns: 1-1.5 inches. Drought-tolerant plants: 0.25-0.5 inches once established.
When is the best time to water?
Early morning (6-10 AM) minimizes evaporation and disease risk. Avoid watering in the afternoon heat or late evening when foliage stays wet overnight.
How do I measure rainfall?
Place a straight-sided container (like a tuna can) in the garden to measure rainfall or sprinkler output. One inch of depth equals one inch of irrigation.
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