Diagnosing Sudden Boxwood Decline After Planting

Newly planted boxwoods defoliating after morning watering in 6-hour sun likely suffer transplant shock/root desiccation, not sun-scald from wet leaves. The root ball dried before roots explored surrounding soil.

If any green remains: water deeply twice daily until established (4-6 weeks). Apply anti-transpirant (Wilt-Pruf) to reduce foliar loss. Mulch 2-3 inches. If fully brown/brittle: they're dead—nursery warranty may apply.

Prevention: soak root balls before planting. Water immediately after. Create soil berm for directed watering. Shade cloth for first week in hot sun.

Boxwoods hate wet feet but need consistent moisture during establishment. The "morning spray" coincidence masked the real issue: inadequate root zone hydration.