Landscape Calendar – Colorado


• Prune ornamental and fruit trees before new growth

• Cut back ornamental grasses so new shoots can emerge

• Prune rose bushes

• Keep insects outside where they belong with HomeShield Pest Control™ program

• Treat ash trees with preventive or curative emerald ash borer (EAB) services


• Evaluate ornamental trees and shrubs for winter damage

• Treat susceptible trees to protect them from borers

• Schedule spring deep root tree fertilization

• Complete shade tree and feature tree pruning

• Complete first lawn fertilization with crabgrass pre-emergent


• Schedule supplemental watering

• Begin preventive disease treatments


• Watch closely for signs of pests and diseases – schedule treatments as needed

• Schedule a storm damage risk audit with your arborist

• Continue HomeShield Pest Control™ program


• Perform hand pruning of spring flowering shrubs

• Treat plants stressed by summer heat with ArborKelp®

• Water lawns deeply and infrequently

• Prune hedges/non-flowering shrubs


• Keep fruit trees nourished and watered during the summer months

• Schedule a fall aeration

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