Buxus sempervirens ‘green pillar’ - Ask Extension
What’s wrong with my boxwoods? They were planted 2-3 years ago and doing very well. They are in part to full sun and just developed these white fea...
Knowledgebase
Buxus sempervirens ‘green pillar’ #928732
Asked April 17, 2026, 2:35 PM EDT
What’s wrong with my boxwoods? They were planted 2-3 years ago and doing very well. They are in part to full sun and just developed these white features
Montgomery County Maryland
Expert Response
This is a waxy residue produced by an insect called Boxwood Psyllid. They can be quite common on boxwoods in the spring, but despite the eyesore they can cause, usually no serious damage is done to the shrub and they can be ignored or blasted off the plant (though that won't get all of them) with a strong spray of plain water. You can learn more in the linked page above and in our boxwood diagnostic page.
Miri
Miri
