The Story
Plant Bio
An upright, herbaceous perennial with stiff stems, lance-shaped green leaves, and large, terminal clusters (panicles) of fragrant, five-petaled flowers that bloom from mid-summer to early fall. It is native to eastern and central North America.
Distinguished by its vibrant, ultraviolet-purple flowers with a subtle white eye. This cultivar is noted for its strong performance, long bloom period, and excellent resistance to powdery mildew.
Uses & Benefits:
Essentials
At a Glance
Plant Type
Perennial
Height
30 inches
Width
28 inches
Light
Full Sun, Partial Sun
Zones
4, 5, 6, 7, 8, 9
Water
Moderate
Humidity
Average
Lifespan
Perennial
Native To
North America
Toxicity
Non-toxic to humans and pets
Marketplace
Where to Buy
Shipping costs Year-round shipping Free shipping
Planting
How to Grow
- Tuck seeds or divisions into well-prepared soil in early spring.
- Water thoroughly after planting to establish roots.
- Fertilize with a balanced fertilizer during active growth.
- Prune after flowering to maintain shape and encourage new growth.
- Mulch around the base to retain moisture and suppress weeds.
- Monitor for pests and treat as needed during the growing season.
Pro Tip
Plant in full sun with well-draining soil for best blooms.
Keep It Thriving
Care Guide
Do
- Water regularly during dry spells 🌱
- Prune dead flowers to promote rebloom
- Mulch to conserve moisture
Don't
- Avoid overwatering to prevent root rot ❌
- Don't neglect pruning after flowering
- Refrain from planting in overly shaded spots
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Deadhead | ||||||||||||
| Divide | ||||||||||||
| Fertilize | ||||||||||||
| Mulch | ||||||||||||
| Pinch | ||||||||||||
| 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
Garden Phlox 'Ultraviolet' questions
What zones can Garden Phlox 'Ultraviolet' grow in?
Garden Phlox 'Ultraviolet' 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 Garden Phlox 'Ultraviolet' deer resistant?
Not reliably. Deer may browse Garden Phlox 'Ultraviolet', especially tender spring growth — plan on repellents or fencing where pressure is high.
When does Garden Phlox 'Ultraviolet' bloom?
Garden Phlox 'Ultraviolet' typically blooms in mid to late summer through late fall. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does Garden Phlox 'Ultraviolet' need full sun?
Garden Phlox 'Ultraviolet' does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.
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Keep exploring
Explore the genus
Grow Garden Phlox 'Ultraviolet' 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.


































































