Roses: Winter Care

Most modern hybrid roses need some winter protection because their parents are of subtropical origin. If roses have grown excessively, they may be subject to snow and wind damage. In November, prune all tall plants by one-third of their height. Otherwise, mid-April is best. In December, remove all leaves and debris from the ground. This…

Snow Impacts on Woody and Herbaceous Plants

When we have heavy snowfalls along the Front Range they are certainly welcome for the moisture they provide and create less need to emphasize winter watering. Annuals such as petunias and snapdragons may overwinter under snow cover that provided insulation from cold temperatures. Perennials may show little dieback of stems. Remove any dead-brown portions in…

Renewing Shrubs

With time, and in some locations, lilac flowering may decrease. But before you take drastic measures, consider all the potential reasons your lilacs aren’t flowering. For example, a late freeze may eliminate flowers for one season. Shade from new buildings and maturing trees also limits bloom. Plants need at least five hours of sunshine daily…

Why Leaves Change Color in the Fall

What causes leaf color to change from green to yellow or red in the fall? It’s a combination of light, temperature and available water. With less light on short days, trees and shrubs return to an energy-saving mode to survive the winter. Short days and falling temperatures signal trees and shrubs to quit producing chlorophyll,…

Dealing With Dog Spots – Part 1 of 3

We have reviewed all those urban legends regarding urine dog spots. Now, let’s cover what you can do. • Train the dog to use a non-turf area in the landscape, such as a area covered with mulch or gravel, or select a location where dog spotting will not become an aesthetic problem and damage can…

IT’s NOT Too Late to Plant!

We thank the ALCC and Plant Select for these great landscaping ideas! There are three good reasons to grab a shovel and plant THIS weekend: The weather will be stellar. The Plant Select plants described below will give great end-of-season outdoor interest for the rest of this growing season. By planting them in the late summer/early…