Evergreen Tree Care in Utah

Spruce, pine, fir, and juniper provide year-round color and windbreaks in Utah landscapes. They face specific challenges: dry winters, alkaline soil, hot summers, and drought. Proper care keeps them healthy for decades.

Watering Evergreens

Water deeply once weekly during growing season at the dripline. In winter, evergreens continue losing moisture through needles. Water monthly when temperatures are above 40°F and ground isn't frozen. Newly planted evergreens need 2-3 winter waterings their first year.

Soil and Fertilization

Utah's alkaline soil (pH 7.5-8.5) affects evergreens. Iron chlorosis shows as yellow new needles with green veins. Treat with EDDHA chelated iron in spring. Fertilize in early spring with slow-release evergreen fertilizer. Do not fertilize after July.

Common Pest Problems

Spider mites cause bronze needles on Colorado blue spruce. Spruce aphids cause needle drop starting in lower canopy. Cytospora canker causes branch dieback from bottom up. Proper watering reduces pest susceptibility.

Pruning

Prune in late winter before new growth. Remove only dead, diseased branches. Do not remove lower spruce/fir branches unless dead — they shade the trunk. Pines: prune candles in spring to control size.

Winter Protection

Apply anti-desiccant sprays in late fall. Use burlap screens on south and west sides. Gently brush heavy snow from branches upward — never shake branches. Water monthly in winter.