Caring for a Newly Planted Live Oak: Water, Mulch, and When to Fertilize

First Year (Critical)

• No fertilizer. Root establishment requires energy, not nutrients.
• Water is #1. Keep soil around roots moist but not wet. Check weekly in dry periods. Sandy soils need more frequent watering; clay soils less.
• Mulch 3 inches deep. Conserves moisture, suppresses weeds, moderates temperature, adds organic matter, protects trunk from mowers. Renew every 2 years; widen ring as tree grows.

After First Year

• Fertilize only to increase growth rate, not as a fix for poor conditions.
• Broadcast granular fertilizer evenly under canopy (circle diameter = branch spread).
• Rate: 2–3 lbs actual nitrogen per 1000 sq ft. Example: small tree with 4-ft spread needs ~¼ lb of 13-13-13.