The Story
Plant Bio
Buddleja davidii 'Purple Haze' is a deciduous shrub known for its arching branches, elongated lance-shaped leaves, and clusters of fragrant, violet-purple flowers that attract butterflies throughout the summer.
This cultivar is distinguished by its vibrant purple flower panicles and its vigorous growth habit, making it especially attractive and easy to cultivate in a variety of garden settings.
Uses & Benefits:
Essentials
At a Glance
Plant Type
Shrub
Height
120 inches
Width
60 inches
Light
Full Sun
Zones
4, 5, 6, 7, 8, 9
Water
Moderate once established
Humidity
Average
Lifespan
Perennial
Native To
China, Japan, Korea
Toxicity
Non-toxic
Bloom period
Mid-summer – Late summer
In flower about 2 months of the year
Marketplace
Where to Buy
Shipping costs Year-round shipping Free shipping
Planting
How to Grow
- Tuck young plants into well-drained soil in spring.
- Water regularly until established, then reduce frequency.
- Prune back after flowering to encourage bushy growth.
- Mulch around base to retain moisture and suppress weeds.
- Fertilize in early spring with balanced fertilizer.
- Monitor for pests and prune out dead or damaged branches.
Pro Tip
Plant in full sun with well-draining soil for best blooms.
Keep It Thriving
Care Guide
Do
- Water deeply during dry periods 🌱
- Prune annually after flowering ❌
- Use mulch to conserve moisture
- Fertilize in early spring
Don't
- Avoid overwatering in winter ❌
- Don’t prune in late fall or winter
- Never leave soil soggy
- Ignore pest issues
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Deadhead | ||||||||||||
| Prune |
Watch Out For
Pests & Diseases
Common Pests
Common Diseases
In the Garden
Landscape Uses & Companions
Landscape Uses
Multiply
Propagation Methods
Good to Know
Common Questions
Butterfly Bush Purple Haze questions
What zones can Butterfly Bush Purple Haze grow in?
Butterfly Bush Purple Haze is hardy in USDA Zones 4–9. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
Is Butterfly Bush Purple Haze deer resistant?
Not reliably. Deer may browse Butterfly Bush Purple Haze, especially tender spring growth — plan on repellents or fencing where pressure is high.
When does Butterfly Bush Purple Haze bloom?
Butterfly Bush Purple Haze typically blooms in mid-summer through late summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does Butterfly Bush Purple Haze need full sun?
Butterfly Bush Purple Haze does best in full sun (6+ hours).
More Buddleja to compare

Pugster Amethyst Butterfly Bush
Buddleja davidii 'Pugster Amethyst'

Trio Butterfly Bush
Buddleja davidii 'Trio'

Bicolor Butterfly Bush
Buddleja davidii 'Bicolor'

Butterfly Bush Purple Prince
Buddleja davidii 'Purple Prince'

Butterfly Haven Butterfly Bush
Buddleja davidii 'Butterfly Haven'

Hot Raspberry Butterfly Bush
Buddleja davidii 'Hot Raspberry'
Keep exploring
Explore the genus
Grow Butterfly Bush Purple Haze 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.



























































