Light Needs
Mature Height
Mature Spread
Growing Zones
Phlox paniculata ‘Blue Paradise’, or more commonly known as Blue Paradise Garden Phlox, features tall, fragrant, showy flowers! It’s a hardy, herbaceous, native perennial that has billowing masses of lavender-blue flowers with deep-green stems and foliage. Blue Paradise Garden Phlox provides a long-blooming summer floral show.
This variety of Phlox is an excellent choice for borders, beds, corners, or containers. It grows to a mature height of 30 to 36 inches tall, and can spread to be 15 to 18 inches wide—just right for middle row planting. The Blue Paradise Phlox blooms are great at attracting pollinators like hummingbirds and butterflies. This plant is tolerant of clay soils as well as deer.
Blue Paradise Garden Phlox Care
Blue Paradise has moderate water needs. It prefers moist, nutrient-rich, well-draining soil. This plant can grow in a wide variety of soil types. It easily adapts to soil containing chalk, clay, and loam. This Phlox is not drought tolerant and will need water during dry spells.
Plant this phlox in an area that gets full sunlight. Blue Paradise prefers full sun for best performance, but also tolerates partial shade. Fertilize in the spring with compost or a balanced fertilizer blend. For pruning this plant, thin out the stems as needed to ensure adequate air circulation between plants. Thinning helps to reduce the risk of powdery mildew.
Blue Paradise Golden Phlox Spacing
Space your Phlox plants about 20 inches apart and thin out as needed. Each Phlox plant requires adequate air circulation around it, so make sure to give them space. This is an excellent border plant and provides an abundance of stunning blooms from July through September!
Blue Paradise Garden Phlox Plant Facts
Growing Conditions
- Hardiness ZonesGrowing Zones
- USDA Zones 4 to 8 (perennial); grown as an annual elsewhere (outdoors year-round); grown indoors elsewhere (outdoors year-round); grown in containers elsewhere (grown as a seasonal crop)
- Sun Exposure
- Full Sun (6+ Hours Direct Sun)
- Mature Height
- 2-3 Feet
- Mature Spread
- 1-2 Feet
- Growth Habit
- , Upright
- Water Needs
- Average
Flowers & Foliage
- Flower Colors
- , Blue
- Flower Description
- Light Blue Darkens to Deep Blue then Violet-Red
- Bloom Time
- Summer
- Foliage Color
- , Green
- Foliage Description
- Green
- Foliage Type
- , Evergreen
- Seasonal Interest
- , Summer Flowering
Garden Benefits
Plant Overview
- Common Name
- Blue Paradise Garden Phlox
- Also Known As
- Blue Paradise Garden Phlox
- Botanical Name
- Phlox pan. 'Blue Paradise'
- Plant Type
- Perennial
Simple Plant Spacing Calculator
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.
Also Known 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
Also Known As:
2.5 Quart Pot
Plant Age:
~ 1 - 2 years old
Plant Size:
~ 8"-12"
Pot Size:
~ 6.5"H x 6.5"W
Volume:
2.20-2.30 quarts
Also Known As:
#1 Container
1 Gallon
Plant Age:
~ 1 - 2 years old
Plant Size:
~ 10"-14"
Pot Size:
~ 7"H x 7.75"W
Volume:
2.26-3.73 quarts
Also Known 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
Also Known 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
Also Known As:
#5 Container
5 Gallon
Plant Age:
~3-4 years old
Plant Size:
~ 20" - 60"
Pot Size:
~11" H x 10 1/2” W
Volume:
3.5 - 4 gallons
We stand behind our plants with industry-leading guarantees to give you peace of mind.
We want your plants to arrive in great condition! If you notice any issues upon delivery, contact us within 3 days.
Starting January 1, 2026 all bushes, perennials & trees purchased come with an extended 1-year warranty for added confidence. If your plant dies due to a health issue within a year, we’ll make it right.
Plants that are currently in stock typically ship within 2-7 business days after your order is placed.
Plant Addicts ships to the lower 48 states within the U.S. Unfortunately, we do not currently ship to Alaska, Hawaii, or internationally.
This plant cannot be shipped to the following states: AK, HI. These restrictions apply only to this specific plant due to agricultural regulations or other limitations. Other plants may still be available for shipping to these states.
If you have any questions about shipping restrictions, feel free to reach out to our team!