The Story
Plant Bio
Purshia tridentata, known as antelope bitterbrush, is a rugged, intricately branched deciduous shrub native to the arid steppe and montane regions of western North America. Its small, wedge-shaped leaves feature three distinct apical teeth and are dark green above with a densely woolly, grayish-white underside that rolls downward during hot, dry weather.
This nitrogen-fixing species produces small, pale yellow, star-shaped flowers along the leaf axils from spring into mid-summer, attracting a wide range of native bees and beneficial insects. The deep, extensive root system stabilizes sandy or gravelly soils while providing critical winter browse for wild ungulates.
Uses & Benefits:
Essentials
At a Glance
Plant Type
Shrub
Height
71"
Width
94"
Light
Full Sun
Zones
4, 5, 6, 7, 8, 9, 10
Water
Low
Humidity
Low
Lifespan
Long
Native To
Western North America
Toxicity
Non-toxic
Bloom period
Spring – Mid summer
In flower about 5 months of the year
Planting
How to Grow
- Select a planting site that receives full sun all day and has exceptional drainage.
- Dig a hole twice as wide as the root ball but of equal depth, ensuring the crown sits slightly above the surrounding soil level.
- Backfill with native soil without adding organic matter or fertilizer, as this plant is adapted to nutrient-poor soils.
- Water deeply immediately after planting to settle the soil, then restrict watering to occasional deep soakings during the first summer.
Pro Tip
Prune only into young, leafy stems immediately after flowering; cutting back into old, leafless wood will prevent regrowth as the plant lacks latent buds on mature bark.
Keep It Thriving
Care Guide
Do
- Plant in highly permeable, sandy, or gravelly soil.
- Prune lightly immediately after flowering to maintain a compact shape.
- Ensure excellent air circulation around the canopy to prevent foliar diseases.
Don't
- Do not apply nitrogen fertilizers, as the plant hosts nitrogen-fixing bacteria.
- Do not overwater or allow water to pool around the root zone.
- Do not cut back severely into old, leafless wood.
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pest Check | ||||||||||||
| Plant | ||||||||||||
| Prune | ||||||||||||
| Spring Cleanup |
Watch Out For
Pests & Diseases
Common Pests
Common Diseases
In the Garden
Landscape Uses & Companions
Landscape Uses
Companion Plants
Multiply
Propagation Methods
Good to Know
Common Questions
Antelope Bitterbrush questions
What zones can Antelope Bitterbrush grow in?
Antelope Bitterbrush is hardy in USDA Zones 4–10. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
Is Antelope Bitterbrush deer resistant?
Not reliably. Deer may browse Antelope Bitterbrush, especially tender spring growth — plan on repellents or fencing where pressure is high.
When does Antelope Bitterbrush bloom?
Antelope Bitterbrush typically blooms in spring through mid summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does Antelope Bitterbrush need full sun?
Antelope Bitterbrush does best in full sun (6+ hours).
Is Antelope Bitterbrush drought tolerant?
Yes — once established (usually after the first full season), Antelope Bitterbrush handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.
Keep exploring
Explore the genus
Grow Antelope Bitterbrush with confidence
See it in a design of your actual yard, get zone-matched care reminders, and track it season by season in your garden journal.