Extension > Garden > Diagnose a problem > What's wrong with my plant? > Deciduous > Boxwood > Leaves tan to brown
Boxwood > Leaves > Leaves tan to brown
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Winter injury
- Foliage is tan to bleached or even reddish to dark brown
- Branches may die back to the crown
- May be on part or all of plant
- More information on winter injury
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Boxwood blight
Cylindrocladium buxicola (syn C. pseudonaviculatum)
- Round leaf spots with a tan center and dark brown edge
- White chalky looking spores on lower surface of leaf
- Dark brown to black streaks on stems
- Stem cankers can girdle and kill branches
- Rapid defoliation and twig deback, roots remain healthy
- Not currently found in MN. If suspected, call the Minnesota Department of Agriculture "Arrest the Pest" Hotline: 1-888-545-6684
- More information on boxwood blight
