Email Mix-Up: Drought Watering for Willows

User complained about missed reply due to email typo. Original question: watering willows in drought.

Answer

Water amount matters more than timing. Stressed tree needs ~10 gallons per inch of trunk diameter. Willows need more (wet-site species). Water every other day until regular rain returns. Use a water probe for deep watering, or calibrate hose (time to fill 1-gal jug, then run for required gallons). For trunks >10″, volume becomes impractical for hose watering.