Phlox paniculata 'Blue Paradise'

Blue Paradise Garden Phlox

Family: Polemoniaceae
Height: 24 to 36 inches
Width: 18 to 24 inches
Flower color: Blue-violet, with a tendency to shift color depending on light conditions
Foliage color: Dark green, lance-shaped leaves
Bloom time: Mid-summer to early fall
Light: Full sun to partial shade
Water: Moderate
Maintenance: Low; deadhead to encourage continuous blooms, cut back in fall
Growing zone: USDA zones 4 to 8
Wildlife: Attracts butterflies, bees, and hummingbirds

About this plant

Phlox paniculata 'Blue Paradise' is an impressive perennial known for its fragrant, violet-blue flowers that shift to a deeper blue or purple depending on the light. The flowers bloom in large, dense clusters from mid-summer to early fall, providing a long-lasting display of color. As the day progresses, the flowers' color may deepen in the morning and evening, adding dynamic interest to the garden.

Bred for its rich color and fragrance, 'Blue Paradise' is a popular choice in cottage gardens, borders, and pollinator-friendly plantings. Its vibrant hues and extended bloom season make it a standout feature in summer landscapes, especially when paired with other perennials.

Works well in

Borders · Cottage Gardens · Pollinator Gardens · Hummingbird Gardens · Cut Flower Gardens

Companion plants

Hostas · Ferns · Astilbes · Foxgloves · Bergenias · Sedums

Design tip

Late flowers extend the season, so set it behind or beside plants that finish in midsummer. Because it is easy about light, use it to carry a planting from a sunny end of the bed into the shadier side.

Where to see it

This plant can be seen in the perennial border at the Bellevue Botanical Garden.