Boxwood at a glance
| Botanical name | Buxus sempervirens |
|---|---|
| Family | Buxaceae |
| Other names | common boxwood, box |
| Plant type | Shrub; evergreen shrub |
| Size | 5 to 20 feet tall, 5 to 15 feet wide if left unclipped; usually kept much smaller |
| Light | Full sun (6 or more hours of direct sun); Part shade (2 to 6 hours of sun) |
| Water | Water new plants regularly; mulch to protect the shallow roots. |
| Soil | Well-drained soil; boxwood dislikes wet feet. |
| USDA hardiness zones | Hardy in zones 5 to 8. |
| USDA PLANTS symbol | BUSE2 |
When to plant boxwood
Plant in spring or early fall.
Turn these into real dates for your area with the planting calendar.
How to grow boxwood
- Plant in well-drained soil with shelter from harsh winter wind.
- Set the plant at the same depth as in its pot.
- Mulch lightly, keeping mulch off the stems.
- Water deeply in dry spells, especially before winter.
- Shear lightly in late spring or early summer.
Water and soil
Water: Water new plants regularly; mulch to protect the shallow roots.
Soil: Well-drained soil; boxwood dislikes wet feet.
Light: Full sun (6 or more hours of direct sun); Part shade (2 to 6 hours of sun).
Common problems
- Winter bronzing
- Leaves turn bronze or tan in cold, windy, sunny sites. Choose a sheltered spot.
- Boxwood blight
- Leaf spots and fast leaf drop. Buy clean plants and remove infected ones; check with your local extension office.
Is boxwood safe for cats and dogs?
Toxic
Toxic
The ASPCA lists Boxwood (Buxus spp.) as toxic to cats and toxic to dogs. Signs it lists include: vomiting, diarrhea. ASPCA entry.
NC State Extension rates its poison severity for people and animals as low.
If a pet chews a plant and you are worried, call your vet or the ASPCA Animal Poison Control Center (888-426-4435; a fee may apply). For people, call Poison Help at 1-800-222-1222. In an emergency, call 911.
Can you eat boxwood?
Not edible.
Boxwood questions
Is boxwood toxic to dogs?
Yes. The ASPCA lists boxwood as toxic to cats and dogs, causing vomiting and diarrhea.
When should I trim boxwood?
Shear lightly in late spring or early summer after new growth. Avoid heavy pruning late in the season.
How fast does boxwood grow?
Slowly, usually just a few inches a year, which is why it suits low hedges.
Sources
- NC State Extension Gardener Plant Toolbox: Buxus sempervirens (size, light, soil, zones, poison rating)
- USDA PLANTS Database profile: Buxus sempervirens L. (accepted name)
- ASPCA: Boxwood (pet toxicity)
- ASPCA Animal Poison Control: plants toxic and non-toxic to cats
- ASPCA Animal Poison Control: plants toxic and non-toxic to dogs
Written in our own words from the sources above. See our editorial policy. Spotted a mistake? Tell us.
