2019 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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