Thick-leaf Phlox
Phlox carolina
Last reviewed: August 2026
Phlox carolina (Thick-leaf Phlox) is a native wildflower blooming from May through July across the southeastern and south-central United States. This attractive perennial produces clusters of fragrant pink to purple flowers that attract bees, butterflies, and moths.
Toxicity unknown
Thick-leaf Phlox (Phlox carolina) is not listed by the ASPCA Animal Poison Control Center (opens in new tab) or the other sources we check, so we have no verdict for it either way. Absence from those lists is not a clearance. If your pet shows symptoms after eating any plant, call the ASPCA at (888) 426-4435.
Light
part sun
Water
medium
Size
12"–24" H × 12"–18" W
Bloom
May, Jun, Jul
Native to
AL, AR, FL, GA and 11 more states
Pollinators
bees, butterflies, moths
Before you buy
Your city may pay you to plant this
Cities and water utilities offer rebates for replacing lawn with native and water-wise plants. We track 445 programs across 44 states, each with a link to the provider and the date we last checked it.
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Thick-leaf phlox is a compact native perennial that produces clusters of fragrant pink, purple, or white flowers from May through July. This well-behaved plant forms neat clumps and works well in both formal and naturalistic garden settings. Its moderate size and tidy growth habit make it suitable for front yard plantings.
Growing Thick-leaf Phlox
Grow Thick-leaf Phlox in part sun and medium water. Mature plants reach 12 to 24 inches tall and spread 12 to 18 inches wide. Expect low maintenance to keep it looking intentional in a front yard.
In an HOA neighborhood
Thick-leaf Phlox is an HOA-friendly choice. Maintenance level: low. Tidiness: 4 out of 5.
Works well in: front yard, foundation, street edge, mid zone.
Wildlife value
The fragrant flowers attract bees, butterflies, and moths throughout the long blooming season. This native phlox is particularly valuable for supporting native pollinators during late spring and early summer.
Common questions
- When does Phlox carolina bloom?
- Thick-leaf Phlox blooms from May through July, producing clusters of fragrant flowers during late spring and early summer.
- What pollinators visit Phlox carolina?
- Phlox carolina attracts bees, butterflies, and moths with its fragrant tubular flowers and nectar.
- Where is Phlox carolina native?
- Thick-leaf Phlox is native to 16 states across the southeastern and south-central United States, from Florida and Texas north to Illinois and Maryland.
- What growing conditions does Phlox carolina prefer?
- This native phlox tolerates full sun to partial shade and prefers medium moisture levels in well-draining soils.
- Is Thick-leaf Phlox HOA-friendly?
- Thick-leaf Phlox is generally an HOA-friendly choice in the right placement, with low maintenance.
These answers were drafted with an AI model from this plant's data. Verify care details with a local expert.
Native range data from the World Checklist of Vascular Plants (Kew). Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.
Ready to grow Thick-leaf Phlox? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.
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