The Story
Plant Bio
Phlox paniculata 'Rubymine' is a perennial shrub known for its upright growth habit, lush green foliage, and clusters of vibrant, deep pink flowers that bloom in mid to late summer.
This cultivar is distinguished by its exceptionally large, intensely colored flower clusters that attract pollinators and add striking visual interest to borders and perennial beds.
Uses & Benefits:
Essentials
At a Glance
Plant Type
Perennial
Height
24 inches
Width
18 inches
Light
Full Sun, Partial Sun
Zones
4, 5, 6, 7, 8
Water
Medium
Humidity
Average
Lifespan
Perennial
Native To
Eastern North America
Toxicity
Non-toxic
Bloom period
Mid-summer – Late summer
In flower about 2 months of the year
Planting
How to Grow
- Tuck seeds or cuttings into well-drained soil
- Mist cuttings regularly to keep humidity high
- Plant in full sun for best flowering
- Water consistently during dry spells
- Mulch around base to retain moisture and suppress weeds
- Divide every 3-4 years in early spring
Pro Tip
Choose a sunny spot with well-drained soil for abundant blooms.
Keep It Thriving
Care Guide
Do
- Water regularly to keep soil moist
- Prune back after flowering to promote bushiness
- Fertilize in early spring with a balanced fertilizer 🌱
Don't
- Avoid overwatering to prevent root rot ❌
- Don’t prune in late fall or winter
- Refrain from planting in overly shady areas
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
Multiply
Propagation Methods
Good to Know
Common Questions
Phlox paniculata Rubymine questions
What zones can Phlox paniculata Rubymine grow in?
Phlox paniculata Rubymine 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 Phlox paniculata Rubymine deer resistant?
Not reliably. Deer may browse Phlox paniculata Rubymine, especially tender spring growth — plan on repellents or fencing where pressure is high.
When does Phlox paniculata Rubymine bloom?
Phlox paniculata Rubymine 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 Phlox paniculata Rubymine need full sun?
Phlox paniculata Rubymine does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.
More Phlox to compare

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Phlox pilosa

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Phlox paniculata 'Sherbet Cocktail'

Emerald Blue Moss Phlox
Phlox subulata 'Emerald Blue'
Keep exploring
Explore the genus
Hardy in your zone?
Grow Phlox paniculata Rubymine 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.


































































