• Photo of Phlox carolina (Phlox carolinas)

Plant Profile: Phlox carolina

Taxonomy: Phlox carolina

Names

Carolina Phlox, Giant Phlox, Summer Phlox, Thick-leaf Phlox, Thickleaf Phlox

  • Photo of Phlox carolina (Phlox carolinas)

Phonetic Spelling:floks kair-oh-LEE-nah

Genus:Phlox

Species:carolina

Family:Polemoniaceae

Carolina Phlox, as its name indicates, is a flowering plant indigenous to the southeastern United States. It thrives in a variety of environments, including deciduous forests, the edges of woodlands, open clearings, and along roadsides. This plant typically grows upright, reaching heights of 2 to 3 feet, and primarily flowers during the peak of summer when exposed to full sunlight, although it can produce additional blooms sporadically until the first frost. The flowers, which appear in clusters atop the stems, exhibit a cool color palette ranging from lavender to pink and white. Notably, the wild variety is resistant to powdery mildew.

For propagation, Carolina Phlox can be divided in the fall or grown from cuttings. While it has the potential to reseed, it does so in a non-invasive manner.

Phlox carolina Feature Summary

Phlox carolina Image Gallery

Tags

#fragrant
#hummingbirds
#showy flowers
#perennial
#white flowers
#easy to grow
#wildlife plant
#purple flowers
#pink flowers
#herb garden
#cpp
#low flammability
#NC native
#ornamentals
#native garden
#fire resistant
#naturalizes
#acidic soil tolerant
#native wildflower
#wildflower garden
#food source summer
#food source herbage
#food source nectar
#food source pollen
#perennials
#nectar plant late spring
#butterfly friendly
#nectar plant early summer
#nectar plant mid-summer
#Piedmont Mountains FACU
#Coastal FACU
#pollinators
#pollinator garden
#bee friendly
#audubon

Similar Plants

Phlox carolina is often confused with:

Phlox carolina Feature Summary

Attributes
SW Georgia to NE Texas, North to Maryland and SE Missouri
Its flowers attract hummingbirds, butterflies, and bees.
Perennial
Seed
Stem Cutting
Division
Attracts Pollinators
Colorful
Attractive Flowers
Easy to Grow
low flammability
Flowers
Flowers are arranged in loose, broadly cylindrical clusters in a compact terminal inflorescence. The flowers are 0.5-0.75 in. with five rounded corolla lobes. They may rebloom in late summer/early fall. Flower generally blooms from May to July.
Pink
Purple/Lavender
White
Fragrant
Good Cut
Showy
Spring
Summer
Fall
4-5 petals/rays
< 1 inch
Leaves
Carolina Phlox has tufted, minutely downy to hairy stems with 5-12 pairs of lance-shaped to narrowly egg-shaped leaves. The leaves are 1.5-4 in. long, bright-green, oval, and leathery.
Ovate
Lanceolate
Oblanceolate
1-3 inches
Leathery
Stem
Stems are red-streaked and may appear singly or in clusters.
Red/Burgundy
Hairy (pubescent)
Whole Plant Traits
Perennial
Herbaceous Perennial
Native Plant
Wildflower
Herb
Erect
Clumping
Cultural Conditions
Full sun (6 or more hours of direct sunlight a day)
Partial Shade (Direct sunlight only part of the day, 2-6 hours)
Dappled Sunlight (Shade through upper canopy all day)
Acid (<6.0)
Good Drainage
Moist
Occasionally Wet
Occasionally Dry
Occasional Flooding
Coastal
Mountains
Piedmont
5b
5a
6a
6b
7a
7b
8b
8a
9a
9b
Clay
High Organic Matter
Loam (Silt)
Sand
Landscape
Butterfly Garden
Pollinator Garden
Native Garden
Woodland
Naturalized Area
Butterflies
Pollinators
Bees
Small Mammals
Hummingbirds

Phlox carolina Attributes

Phlox carolina: Country Or Region Of Origin

Southeastern USA

Phlox carolina: Distribution

SW Georgia to NE Texas, North to Maryland and SE Missouri

Phlox carolina: Wildlife Value

Its flowers attract hummingbirds, butterflies, and bees.

Phlox carolina: Life Cycle

Annual
Biennial
Bulb
Perennial
Woody

Phlox carolina: Recommended Propagation Strategy

Division
Grafting
Layering
Leaf Cutting
Root Cutting
Seed
Stem Cutting

Phlox carolina: Play Value

Attractive Flowers
Attracts Pollinators
Buffer
Colorful
Defines Paths
Easy to Grow
Edible fruit
Fragrance
Pieces Used in Games
Screening
Shade
Sound
Textural
Wildlife Cover/Habitat
Wildlife Food Source
Wildlife Larval Host
Wildlife Nesting
Wind Break
Wind Shimmer

Phlox carolina: Fire Risk Rating

extreme flammability
high flammability
low flammability
medium flammability

Phlox carolina Flowers

Phlox carolina: Flower Description

Flowers are arranged in loose, broadly cylindrical clusters in a compact terminal inflorescence. The flowers are 0.5-0.75 in. with five rounded corolla lobes. They may rebloom in late summer/early fall. Flower generally blooms from May to July.

Phlox carolina: Flower Color

filter_vintage
Pink
filter_vintage
Purple/Lavender
filter_vintage
White

Phlox carolina: Flower Inflorescence

Catkin
Corymb
Cyme
Head
Insignificant
Panicle
Raceme
Solitary
Spadix
Spike
Umbel

Phlox carolina: Flower Value To Gardener

Edible
Fragrant
Good Cut
Good Dried
Long Bloom Season
Long-lasting
Showy

Phlox carolina: Flower Bloom Time

Winter
Spring
Summer
Fall

Phlox carolina: Flower Petals

2-3 rays/petals
4-5 petals/rays
6 petals/rays
7 - 20 petals/rays
asymmetrical petals
Bracts
Colored Sepals
fused petals
more than 20 petals/rays
Tepals

Phlox carolina: Flower Shape

Bell
Cross
Crown
Cup
Dome
Funnel
Irregular
Lipped
Radial
Saucer
Star
Trumpet
Tubular
Urn
Wheel

Phlox carolina: Flower Size

1-3 inches
3-6 inches
< 1 inch
> 6 inches

Phlox carolina Leaves

Phlox carolina: Leaf Description

Carolina Phlox has tufted, minutely downy to hairy stems with 5-12 pairs of lance-shaped to narrowly egg-shaped leaves. The leaves are 1.5-4 in. long, bright-green, oval, and leathery.

Phlox carolina: Woody Plant Leaf Characteristics

Broadleaf Evergreen
Deciduous
Needled Evergreen
Semi-evergreen

Phlox carolina: Leaf Color

spa
Green

Phlox carolina: Leaf Type

Compound (Pinnately , Bipinnately, Palmately)
Fronds
Needles
Sheath
Simple

Phlox carolina: Leaf Arrangement

Alternate
Opposite
Other/more complex
Rosulate
Whorled

Phlox carolina: Leaf Shape

Acicular
Auriculate
Cordate
Cuneate
Deltoid
Elliptical
Filiform
Lanceolate
Linear
Oblanceolate
Oblong
Obovate
Obtuse
Orbicular
Ovate
Palmasect
Palmatifid
Peltate
Pinnatifid
Pinnatisect
Reniform
Rhomboidal
Spatulate
Subcordate
Subulate

Phlox carolina: Leaf Margin

Crenate
Crenulate
Dentate
Denticulate
Doubly Crenate
Doubly Dentate
Doubly Serrate
Entire
Lobed
Serrate
Sinuate
Undulate

Phlox carolina: Hairs Present

No
Yes

Phlox carolina: Leaf Length

< 1 inch
1-3 inches
3-6 inches
> 6 inches

Phlox carolina: Leaf Feel

Fleshy
Glossy
Leathery
Papery
Prickly
Rough
Rubbery
Slippery
Smooth
Soft
Velvety
Waxy

Phlox carolina Stem

Phlox carolina: Stem Description

Stems are red-streaked and may appear singly or in clusters.

Phlox carolina: Stem Color

grass
Red/Burgundy

Phlox carolina: Stem Is Aromatic

No
Yes

Phlox carolina: Stem Surface

Corky Ridges
Covered with a powdery bloom (glaucous)
Dull
Hairy (pubescent)
Polished
Smooth (glabrous)

Phlox carolina Whole Plant Traits

Phlox carolina: Plant Type

Annual
Bulb
Carnivorous
Edible
Epiphyte
Fern
Ground Cover
Herb
Herbaceous Perennial
Houseplant
Mushroom
Native Plant
Ornamental Grasses and Sedges
Perennial
Poisonous
Rose
Shrub
Succulent
Tree
Turfgrass
Vegetable
Vine
Water Plant
Weed
Wildflower

Phlox carolina: Woody Plant Leaf Characteristics

Broadleaf Evergreen
Deciduous
Needled Evergreen
Semi-evergreen

Phlox carolina: Habit/Form

Arching
Ascending
Broad
Cascading
Climbing
Clumping
Columnar
Conical
Creeping
Dense
Erect
Horizontal
Irregular
Mounding
Multi-stemmed
Multi-trunked
Open
Oval
Prostrate
Pyramidal
Rounded
Spreading
Vase
Weeping

Phlox carolina: Growth Rate

Slow
Medium
Rapid

Phlox carolina: Maintenance

Low
Medium
High

Phlox carolina Cultural Conditions

Phlox carolina: Light

Dappled Sunlight (Shade through upper canopy all day)
Deep shade (Less than 2 hours to no direct sunlight)
Full sun (6 or more hours of direct sunlight a day)
Partial Shade (Direct sunlight only part of the day, 2-6 hours)

Phlox carolina: Soil pH

Acid (<6.0)
Alkaline (>8.0)
Neutral (6.0-8.0)

Phlox carolina: Soil Drainage

Frequent Standing Water
Good Drainage
Moist
Occasional Flooding
Occasionally Dry
Occasionally Wet
Very Dry

Phlox carolina: Available Space To Plant

12 inches-3 feet
12-24 feet
24-60 feet
3 feet-6 feet
6-feet-12 feet
Less than 12 inches
more than 60 feet

Phlox carolina: NC Region

Coastal
Mountains
Piedmont

Phlox carolina: USDA Plant Hardiness Zone

thermostat
5a
thermostat
5b
thermostat
6a
thermostat
6b
thermostat
7a
thermostat
7b
thermostat
8a
thermostat
8b
thermostat
9a
thermostat
9b

Phlox carolina: Soil Texture

Clay
High Organic Matter
Loam (Silt)
Sand
Shallow Rocky

Phlox carolina Fruit

Phlox carolina: Fruit Type

Achene
Aggregate
Berry
Capsule
Caryopsis
Drupe
Follicle
Legume
Nut
Pome
Samara
Schizocarp
Siliqua

Phlox carolina: Display/Harvest Time

Fall
Spring
Summer
Winter

Phlox carolina Landscape

Phlox carolina: Landscape Theme

Asian Garden
Butterfly Garden
Children's Garden
Cottage Garden
Cutting Garden
Drought Tolerant Garden
Edible Garden
English Garden
Fairy Garden
Garden for the Blind
Native Garden
Nighttime Garden
Pollinator Garden
Rain Garden
Rock Garden
Shade Garden
Water Garden
Winter Garden

Phlox carolina: Resistance To Challenges

Black Walnut
Compaction
Deer
Diseases
Drought
Dry Soil
Erosion
Fire
Foot Traffic
Heat
Heavy Shade
Humidity
Insect Pests
Pollution
Poor Soil
Rabbits
Salt
Slugs
Squirrels
Storm damage
Urban Conditions
Voles
Wet Soil
Wind

Phlox carolina: Landscape Location

Coastal
Container
Hanging Baskets
Houseplants
Lawn
Meadow
Naturalized Area
Near Septic
Patio
Pond
Pool/Hardscape
Recreational Play Area
Riparian
Rock Wall
Slope/Bank
Small Space
Vertical Spaces
Walkways
Woodland

Phlox carolina: Attracts

Bats
Bees
Butterflies
Frogs
Hummingbirds
Moths
Pollinators
Predatory Insects
Reptiles
Small Mammals
Songbirds
Specialized Bees