Juniper 'Tam' Ground Cover Yellowing After Extreme Wet Spring

Mature Tam junipers (10–15 years) on a bank in north-central Oregon turned yellow in patches after an exceptionally wet spring. Neighbor's plants turned brown and appear dead. Normal climate is high desert.

Cause: Juniper Hates Wet Feet

Melissa confirms junipers are extremely drought-tolerant but highly susceptible to root rot in prolonged wet soil. The yellowing is a classic stress response.

Action Steps

• Dig drainage trenches to divert water away from plants.
• Consider crystal water-absorbent polymer (raked up after saturation).
• Prune out yellow areas carefully (wear gloves—juniper foliage irritates skin).
• Test for spider mites: tap foliage over white paper; if mites appear, spray neem.
• Brown, brittle plants may be dead and need replacement.

As weather normalizes, surviving junipers should recover.