Garden Phlox 'Starfire'
Phlox paniculata 'Starfire'
Essentials
At a Glance
Plant Type
Perennial
Height
36 inches
Width
24 inches
Light
Full Sun, Partial Sun
Zones
4, 5, 6, 7, 8
Water
Moderate
Humidity
Average
Lifespan
Perennial
Native To
North America
Toxicity
Non-toxic to humans and pets
The Story
Plant Bio
An upright, clump-forming perennial known for its large, fragrant, terminal clusters (panicles) of flowers that bloom from mid-summer to early fall. Distinguished by its stunning, cherry-red flowers and bronze-tinged foliage. It is noted for having some resistance to powdery mildew.
Bloom Period:
Uses & Benefits:
Marketplace
Where to Buy
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Planting
How to Grow
- Tuck seeds or divisions into well-drained soil in early spring.
- Water thoroughly after planting to establish roots.
- Prune back after flowering to promote bushiness.
- Fertilize monthly during active growth for best blooms.
- Mulch around base to retain moisture and suppress weeds.
- Divide every 3–4 years in early spring or fall.
Pro Tip
Plant in full sun for abundant flowering and good health.
Keep It Thriving
Care Guide
Do
- Water regularly during dry spells 🌱
- Prune to shape and remove dead stems ✂️
- Fertilize monthly during growth season
- Mulch to conserve moisture
Don't
- Avoid overwatering to prevent root rot ❌
- Don’t neglect pruning after flowering
- Never plant in poorly drained soil
- Avoid excessive fertilization which can reduce blooms
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Deadhead | ||||||||||||
| Divide | ||||||||||||
| Fertilize | ||||||||||||
| Mulch | ||||||||||||
| Pest Check | ||||||||||||
| Pinch | ||||||||||||
| 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
Garden Phlox 'Starfire' questions
What zones can Garden Phlox 'Starfire' grow in?
Garden Phlox 'Starfire' is hardy in USDA Zones 4–8. 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 'Starfire' deer resistant?
Yes — Garden Phlox 'Starfire' is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.
When does Garden Phlox 'Starfire' bloom?
Garden Phlox 'Starfire' 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 Garden Phlox 'Starfire' need full sun?
Garden Phlox 'Starfire' does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.
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Keep exploring
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Hardy in your zone?
Grow Garden Phlox 'Starfire' 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.
