Q:Will you please impart your wisdom on whether to selectively prune cotinus, the better to encourage the development of a multistemmed shrub out of a healthy, otherwise happy, burgundy-clad beauty ...

Mari asks: When is the best time to prune my smoke tree? A problem occurred when my gardener decided to shear the entire bush into a round blob. Now, how and when do I get it back into its normal ...

Description: A deciduous tree or shrub native to the Mediterranean and southern latitudes of the United States, Cotinus coggygria is prized for its broadly elliptic dark green to purple leaves, and ...

People are aching to get out and start gardening. Have you started already? Do you have questions? For answers, turn to Ask an Expert, an online question-and-answer tool from Oregon State University’s ...

Most experts recommend that deciduous trees such as birch be pruned when they are totally dormant. All leaves should be off and the weather should be cold. If you wait until spring, you risk the tree ...