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- Partial Shade to Full Sun (3+ Hours Direct Sunlight)
- Mature Height 2 - 3 Feet
- Mature Spread 2 - 3 Feet
- Growing Zones 3 - 8
The LUMINARY™ 'Backlight' Phlox paniculata or tall garden Phlox adds height and beauty to any landscape. This stunner tops out at 28 to 30 inches tall and boasts pure white flowers that grow in well-defined panicles or clusters. The fragrant flowers bloom in mid to late summer and sit on top of tall stems dotted with dark green foliage. This plant is a perennial in USDA growing zones 3 through 8.
This upright plant is commonly used as a thriller in containers, and it can also grow in borders, landscapes, and mass plantings. The pure white flowers provide a nice contrast when planted near other blooming plants, and the striking blooms make excellent cut flowers. The Phlox paniculata is native to North America, so it does not require much care once it settles in. This variety is disease-resistant for added convenience and peace of mind.
Luminary™ Backlight Phlox Care
Phlox thrive with plenty of direct sunlight. This plant can live in part to full sun, so it needs at least 4 to 6 hours of daylight, but the more, the better. Soil should be acidic or neutral and well-draining. Phlox prefers consistently damp conditions, so water then the top layer starts to dry out and spread mulch around the base to retain moisture. Regular fertilization will promote new growth and blooms.
Most varieties of Phlox are prone to powdery mildew, and while LUMINARY™ 'Backlight' Phlox paniculata is disease-resistant, it is still best to take steps to avoid mildew and fungal infections. Space Phlox when planting and thin them out if they become too thick. Also, water the ground and not the foliage. In preparation for winter, cut the plant back once the flowers fade. If you want the plant to reseed, wait until the fall to trim the plant back. Cover new plants with mulch for the first 2 winters to help protect the roots from chilly temperatures in cold regions.
Luminary™ Backlight Phlox Spacing
Tall garden Phlox grow 28 to 30 inches tall, so plant them in an area where the flowers will be on display, but the tall stems will not block smaller plants. Space plants 20 to 24 inches apart when planting. With time the plants will fill in, and giving them space allows for improved air circulation.
Luminary™ Backlight Phlox Information
| USDA Hardiness Zones: 3 - 8 |
| Plant Type: Perennials |
| Light Exposure: Partial Shade to Full Sun (At Least 3 Hours Of Direct Sunlight) |
| Mature Height: 2 - 3 Feet |
| Mature Spread: 20 - 24 Inches |
| Spacing: 20 - 24 Inches |
| Habit: Upright |
| Flower Color(s): White |
| Flower Description: Pure White |
| Bloom Period: Mid to Late Summer |
| Foliage Type: Herbaceous |
| Foliage Color(s): Green |
| Foliage Description: |
| Seasonal Interest: Summer Flowering |
| Watering: Low |
| Resists: Disease |
| Tolerates: Heat, Drought |
| Attracts: Bees, Butterflies, Hummingbirds |
| Container Role: Thriller |
| Uses: Borders, Containers, Mass Planting, Wildlife Gardens |
| Features: Attracts Pollinators, Cut Flowers, Fragrant, Low Maintenance, Native to North America |
| Brand: Proven Winners |
| Common Name: Luminary™ Backlight Phlox |
| Other Name(s): |
| Scientific Name: Phlox paniculata USPPAF, Can PBRAF |
- SKU:
- PHLLB
Container Sizes
Please Note: The pictures below are to give a general representation of the different container sizes. The actual size/ages of plants are estimates and will vary based on; type of plant, time of year, last pruning & many other factors.
4.5" Pot
Also Know As:
4.5" Container
Plant Age:
~ 6 months
Plant Size:
~ 3"-6"
Pot Size:
~ 4.5"H x 3.75"W
Volume:
1.42 quarts
Quart Pot
Also Know As:
Quart
Plant Age:
~ 6 months - 1 year
Plant Size:
~ 4"-8"
Pot Size:
~ 4.75"H x 4.5"W
Volume:
1.50 quarts
2.5 Quart
Also Know As:
2.5 Quart Pot
Plant Age:
~ 1.5 - 2 years old
Plant Size:
~ 8"-12"
Pot Size:
~ 6.5"H x 6.5"W
Volume:
2.20-2.30 quarts
#1 Pot
Also Know As:
#1 Container
1 Gallon
Plant Age:
~ 1.5 - 2 years old
Plant Size:
~ 10"-14"
Pot Size:
~ 7"H x 7.75"W
Volume:
2.26-3.73 quarts
#2 Pot
Also Know As:
#2 Container
2 Gallon
Plant Age:
~ 1.5 - 3 years old
Plant Size:
~ 12"-18"
Pot Size:
~ 9.5"H x 9.5"W
Volume:
1.19-1.76 gallons
#3 Pot
Also Know As:
#3 Container
3 Gallon
Plant Age:
~ 2 - 4 years old
Plant Size:
~ 12"-30"
Pot Size:
~9.5"H x 11"W
Volume:
2.32-2.76 gallons
For more detailed information, please click here.
Plant Addict Guarantee (Included On All Plant Orders)
Plant Addicts Warranty - 1 Year (Extra Purchase Required)
Guide: How to Care for Your New Plant(s)
Planter Shipping
Standard Colors: 2-3 business days
Special Order Colors: 8 weeks - this is due to the planter being custom made with the color(s) of your choice
Please Note: On special orders there can not be any cancellations
Plant Shipping
Time of Order:
Summer Shipping
- If there is extreme heat we’ll delay shipping.
- We’ll have to review what areas the plants are traveling through along with your location
Once your plant is shipped you’ll receive an email with tracking information. Depending on the above criteria we’ll ship your plant(s) towards beginning of the following week from your order. We put together this helpful guide of what to do when you receive your plants in the mail.
It is important to know that all of our plants are clearly labeled for which growing zones the plant can survive in. The plants are thoroughly trialed and tested in every growing zone before we state the plant can grow in a zone. Again, our #1 priority is to ship the plants to you healthy and ready to thrive in your location. So we will do everything in our power to do so.
