Why Arborvitae Won't Fill Out in Clay Soil and Part Shade

Three Limiting Factors

Arborvitae in N. Ohio clay soil, half-day sun, hold water. Tall but not bushy. Missed spring fertilizer.

Root Causes

1. Insufficient Sun: Arborvitae need full sun. Less light = thinner growth.
2. Clay Soil: Poor drainage suffocates roots.
3. Waterlogged: Excess moisture compounds clay problem.

Soil Remediation Technique

Drill 6–8 holes in root zone with bulb planter on drill. Backfill with high-organic topsoil. Creates drainage columns, improves root zone over time. Limit watering 1 year. Fertilize spring.