Seasonal Tree Care Calendar for Utah
Seasonal Tree Care Calendar for Utah
Utah's four distinct seasons each bring different tree care tasks. Following a seasonal schedule helps you stay ahead of problems and keep your trees healthy throughout the year. This month-by-month guide is tailored to the Wasatch Front's growing conditions.
Winter (December - February)
December: continue winter watering of evergreens monthly when above 40°F. Inspect trees for snow load damage after storms. Gently brush heavy snow from branches using an upward motion — never shake branches. Check tree wraps for damage and re-secure if needed.
January: inspect trees for storm damage, broken branches, and cracking. Plan spring pruning projects. Order trees for spring planting. Monitor for rodent damage at tree bases — voles and rabbits tunnel under snow.
February: begin dormant pruning of deciduous trees (except spring bloomers). Prune grapes and fruit trees. Apply dormant oil to control overwintering pests. Check irrigation systems for winter damage.
Spring (March - May)
March: continue pruning before buds swell. Remove winter tree wraps. Apply slow-release fertilizer. Plant new trees as soon as ground is workable. Prune spring-flowering trees after they bloom. Inspect for frost cracks and sunscald damage.
April: monitor for signs of pests — aphids, spider mites, scale insects. Apply pre-emergent weed control around trees. Begin regular watering schedule as temperatures rise. Mulch around trees (2-4 inches, keep away from trunk). Inspect for fire blight on apples and pears.
May: continue monitoring for pests and diseases. Water deeply as temperatures increase. Remove suckers from tree bases. Apply EDDHA chelated iron if trees show chlorosis symptoms. Plant container-grown trees.
Summer (June - August)
June: water deeply every 7-14 days depending on rainfall. Monitor for spider mites on evergreens, especially Colorado blue spruce. Watch for drought stress. Remove dead branches. Monitor for codling moth on fruit trees.
July: continue deep watering — this is Utah's hottest month. Watch for signs of heat stress and adjust watering. Monitor for bark beetles on stressed pines. Do not fertilize during summer heat. Remove water sprouts and suckers.
August: continue regular watering. Prepare for fall planting. Order trees for fall planting. Monitor for fall webworm and treat if needed. Reduce watering on fruit trees 2-3 weeks before harvest.
Fall (September - November)
September: plant new trees — fall is an excellent planting time in Utah. Continue watering but reduce frequency as temperatures cool. Apply slow-release potassium fertilizer for winter hardiness. Inspect trees for structural issues before winter storms.
October: continue fall planting. Rake and remove fallen leaves from around trees to reduce disease. Apply winter tree wrap to young, thin-barked trees. Prune dead and diseased branches. Reduce watering as trees enter dormancy.
November: winterize irrigation systems. Apply final deep watering before ground freezes. Install trunk guards for rodent protection. Apply anti-desiccant sprays to broadleaf evergreens. Mulch around trees after ground freezes. Inspect trees for dead branches that could break under snow.
Year-Round Tasks
Monthly: quick visual inspection of trees for pests, diseases, and damage. After storms: check for broken branches, leaning trees, and cracks. Prune dead, diseased, or hazardous branches at any time. Maintain mulch layer throughout the year.
Frequently Asked Questions
When should I prune trees in Utah? Most trees: late winter (February-March). Spring bloomers: after flowering. Dead/diseased branches: any time.
When is the best time to plant trees in Utah? Spring (March-May) or fall (September-October). Fall planting gives roots a head start before summer heat.
How often should I water trees in Utah summer? Deep water every 7-14 days during the growing season. More frequently during heat waves.
When should I fertilize trees in Utah? Early spring before new growth begins. Do not fertilize after July or during drought stress.
When should I wrap trees for winter? Late October to November. Remove wraps in early spring (March).