Bert Cregg

  • How-To

    How to Treat Needle Drop on Evergreen Conifers

    This is a symptom that can signal anything from a severe tree problem to no problem at all. 1. What it looks like All the needles on a conifer begin…

  • How-To

    Yellow Leaves on Red Maples and Pin Oaks—What Does It Mean?

    These popular landscape trees generally start declining within one to two years of planting. 1. What it looks like Leaves turn yellow, but the veins remain green. 2. How to…

  • How-To

    Treat Winter Injury to Your Trees

    Winter injury is among the most common tree problems experienced in colder areas of the country. 1. What it looks like Winter injury actually includes several different plant problems that…

  • Design

    Gardening in a Changing Climate

    The topic of climate change has come to permeate all facets of our lives. From the evening news to social media, discussions of carbon footprint and global warming are never…

  • Article

    Putting it to the Test: Mulch

    Every gardener wants a gorgeous garden. Choosing the right plants for your site and using proper planting techniques are, of course, essential steps in establishing a successful landscape. Choosing the…

  • How-To

    The Dangers of a Spring Cold Snap

    Why does a plant that endured winter cold suddenly suffer when spring temperatures drop a bit?

  • How-To

    How to Prune Conifers

    These plants are unforgiving, so make the right cuts for the right reasons

  • How-To

    Pruning Conifers for Health

    Pruning conifer trees and shrubs for health should be done anytime a problem pops up and can be safely corrected. Removing branches that have experienced winter damage, or branches that cross and…

  • How-To

    Pruning Firs, Douglas Firs, and Spruces

    The best time to prune these evergreen trees and shrubs is when they're dormant—either in late winter or late summer. You can prune to control height or to encourage fullness. Learn…

  • How-To

    Pruning Arborvitae, Junipers, and Chamaecyparis

    Unlike some conifers, these evergreen trees will not form new buds on old wood. So if you cut back to the brown, aged stems, it won't grow back. Conifers with…