Overview

Phlox paniculata 'Starfire' is a clump forming, matforming, trailing perennial in the genus Phlox, part of the Polemoniaceae family, with deciduous, evergreen foliage. It typically grows around 1.2 m tall. Phlox paniculata 'Starfire' grows best in full sun, and tolerates most soils and any pH. Its UK hardiness is rated H7. Suggested uses include borders and cut flowers. It is native to Eastern and central United States.

About

Phlox paniculata is a species of flowering plant in the phlox family (Polemoniaceae). It is native to parts of the eastern and central United States.

Wikipedia contributors, CC BY-SA 4.0Phlox paniculata

About the genus

Phlox is a genus of 68 species of perennial and annual plants in the family Polemoniaceae. They are found mostly in North America in diverse habitats from alpine tundra to open woodland and prairie. Some flower in spring, others in summer and fall.

Wikipedia contributors, "Phlox", CC BY-SA 4.0Phlox

Growing conditions

Best soil and position for Phlox

Sunlight
Full sun
Soil type
Sandy, Loamy, Clay
Soil pH
Acid, Alkaline, Neutral
Soil moisture
Moist but well-drained
Aspect
South-facing, West-facing, East-facing
Exposure
Full sun
UK hardiness
H7

Plant details

Phlox paniculata 'Starfire' size, habit and characteristics

Plant type
Perennial
Habit
Clump forming, Matforming, Trailing
Foliage
Deciduous, Evergreen
Height
1.2 m
Suggested uses
Borders, Cut flowers
Native to
Eastern and central United States
Fragrance
Mildly fragrant

Care notes

Pruning and caring for Phlox paniculata 'Starfire'

Cultivation
Prefers moist, well-drained soil; deadhead to prolong flowering
Pruning
Cut back after flowering to encourage bushiness
Propagation
Division, Cuttings
Pest resistance
Stem and bulb eelworm
Disease resistance
Powdery mildews, Grey moulds, Leafy gall, Fungal leaf spot

Frequently asked questions

How do I grow Phlox paniculata 'Starfire'?

Prefers moist, well-drained soil; deadhead to prolong flowering.

Where is the best place to plant Phlox paniculata 'Starfire'?

Phlox paniculata 'Starfire' prefers full sun. It suits full sun positions.

What soil does Phlox paniculata 'Starfire' need?

Phlox paniculata 'Starfire' is adaptable and grows happily in most soil types, including sandy, loamy and clay. It is happy in soil of any pH. Aim for soil that stays moist but well-drained.

How do I prune Phlox paniculata 'Starfire'?

Cut back after flowering to encourage bushiness.

How big does Phlox paniculata 'Starfire' grow?

Phlox paniculata 'Starfire' reaches a height of 1.2 m.

Is Phlox paniculata 'Starfire' hardy in the UK?

Phlox paniculata 'Starfire' has an RHS hardiness rating of H7, meaning it is fully hardy throughout the UK, tolerating temperatures below -20°C.

How do I propagate Phlox paniculata 'Starfire'?

Division, Cuttings.

More in the Phlox genus

Browse all Phlox