Arborvitae Yellowing in Rhode Island: Soil Test Needed

10-year-old arborvitae yellowing after very wet spring/June, dry August. Northeast location. Owner asks about fertilizing.

Advice

• Don't fertilize now (fall/winter approaching).
• Do soil test via extension (free baseline for spring).
• Newport County RI: Plant Hotline 1-800-448-1011 (M-Th 9-2) or 401-874-2900.
• Possible spider mites if hot/dry.

Key

Test, don't guess. Extension gives free, unbiased soil analysis.