Emerald Green Arborvitae Dying Near Pine Tree: Causes & Fixes

Can Emerald Green Arborvitae Survive Near a Pine?

Two of three newly planted Emerald Green arborvitae near a neighbor's pine have died; a third looks sick. The owner asks if pines are the problem and what else to plant.

Pine Proximity Is Likely Not the Cause

• Emerald Green (Thuja occidentalis 'Smaragd') tolerates acidic soil (pines acidify soil).
• Hardy in USDA zones 3–8.
• Needs winter watering and fertilizer (10-10-10) to stay green.

Probable Causes

• Transplant shock / root issues — most common for new plantings.
• Poor drainage or over/under watering.
• Winter desiccation — frozen ground prevents water uptake; evergreens lose moisture through needles.

Action Plan

1. Replace the three struggling plants now (inexpensive at ~$10 for 4-ft).
2. Water deeply weekly until ground freezes; resume in early spring.
3. Apply balanced fertilizer in early spring and fall.
4. Mulch 2–3 in, keeping away from trunk.
5. If replacements also fail, test soil and consider a different species.

Alternative Evergreens for Near Pines

• Eastern red cedar (Juniperus virginiana)
• Serbian spruce (Picea omorika)
• Japanese falsecypress (Chamaecyparis pisifera)

All tolerate acidic, well-drained soil and offer similar screening.