1068 – Dividing Ornamental Grasses
Ornamental grasses have become a major part of the landscape in the last twenty years. While providing many ornamental attributes and relative ease of care, a number of perennial grasses do require division periodically to maintain vigor and appearance. Do I need division between my grasses? Spacing and visual appearance often dictate when division is […]
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1425 – Ash Borers
Lilac-ash borer, which flies from April through June, is the number one problem-borer of ash. Stressed ash trees are the most susceptible to damage from this pest. Stressors include improper siting, under- and over-watered trees, recent transplants and trunk damage. Trees in poor condition have less capacity to fight off borers and recover from attack. […]
Take a Tour1707 – Fall Planting
What plants are good to buy in the fall? In the late summer and early autumn, many nurseries and garden centers will discount their inventory of trees and shrubs. While selection may be limited, these sales are a good opportunity to purchase fruit trees and landscape trees at reduced prices. Why is fall a good […]
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Trees, Shrubs & Vines
Trees Shrubs Vines Miscellaneous Trees 2024 Front Range Recommended Tree List Adaptable crabapple clones Alternative to overused shrubs and trees Ash Care for the Do It Yourself Gardener Ash leaves curling? Ash trees Aspen trees Austrees Buying trees & shrubs Cottonwood cotton Dwarf & specialty conifers Elm trees Excessive fall needle drop Excessive seed production […]
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2046 – Plant Select® 2012
Plant Select®, a collaborative effort with Denver Botanic Gardens, Colorado State University, and regional and national horticultural professionals, is pleased to announce six new plants to be promoted for 2012. Cape-forget-me-not (Anchusa capensis) has trim evergreen rosettes producing a bounty of dazzling cobalt-blue flowers with fetching white eyes throughout the garden season. This perennial will […]
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1834 – Common Tomato Problems
Adapted from the CO-Horts blog originally authored by Jane Rozum, Douglas County. Blossom end rot Early Blight Tomato Spotted Wilt Virus (TSWV) Tomatoes may have many different problems during the growing season. Depending on the symptoms, a gardener can diagnose issues with plants so decisions can be made on the best course of […]
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1808 – Growing Onions from Seed
What are the benefits of growing from seeds? Growing onions from seed is economical, and seed-started onions don’t send up flower stems as often as transplanted bedding onions do. An onion’s flowering process ruins the quality of a bulb onion. How do onions grow in Colorado? In northern Colorado, onions grown for winter storage will […]
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2035 – Plant Select® 2007
The Plant Select® program of 2007 introduces and recommends the following plants for regional gardens. This year’s selections reflect the program’s standard for outstanding performance in gardens in the Rocky Mountain region and beyond. HOT WINGS® Tatarian Maple (Acer tataricum ‘GarAnn’ PP 15,023) is a superior small ornamental tree that grows to around 18 feet […]
Take a Tour1761 – Rose Care for Fall
Roses vary in their cold hardiness and some need extra care to help them survive winter temperatures. Soil moisture prior to a hard freeze lessens damage to roots. Cut canes back by one-third only if they are tall and could be damaged by snow loading. Some roses will continue to bloom late into the fall. […]
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2027 – Plant Select® 2006
The Plant Select® program of 2006 introduces and recommends the following plants for regional gardens. This year’s selections reflect the program’s standard for outstanding performance in gardens in the Rocky Mountain region and beyond. Bridges’ Penstemon (Penstemon rostriflorus) is native to the southwestern states and attracts hummingbirds to the home garden. This penstemon with orange-red […]
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