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Planttalk Colorado™ is sponsored by Colorado State University Extension, Denver Botanic gardens, and the Green Industries of Colorado. For additional information on gardening, see Plant Select® and Extension Publications.

Reliable, timely information on more than 600 horticultural topics.


YouTube videos on various topics including best of annuals/perennials, how to plant a tree, sodding a lawn and many other videos to help increase Colorado gardening knowledge.

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Colorado Garden Blogs

Colorado gardening blogs combined into one location for easy viewing.

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Emerald Ash Borer

Emerald Ash Borer (EAB), detected in Boulder, Westminster and Larimer county, is a nonnative insect with no natural enemies to keep it in check.

Learn about EAB