Smooth Phlox
Phlox glaberrima
Found in wet forests and woodlands, especially bottomlands. FloraQuest, phone app (app page) What its natural habitat tells you
Native to Virginia. How scores work Is it native here?
Profile 94%
- Height
- 2–4 feet
- Spread
- 2–2.5 feet
- Light
- Full sun, Partial shade
- Soil moisture
- Usually moist
Space about 2 ft apart from its recorded spread, about 25 per 100 sq ft. Enter your bed size for a count
Will it fit your yard?No photograph yet. Looking for an old drawing…
At a glance
- Life cycle
- Perennial
- Bloom
- April to June
- Fruiting season
- June to July
Not yet recorded · Leaves
Recorded in 21 Virginia counties.
Natural habitats
Places it grows wild. Not a planting requirement. Each habitat page lists the plants and wildlife also found there.
Forest or woodland where the source does not say how moist or dry.
Floodplain and bottomland forests
Forests on low ground beside rivers and streams that flood from time to time.
Who uses this plant?
8CaterpillarsGenus host records with ranges including VA
Genus host records with ranges including VA · Phlox
- Helicoverpa zeaCorn Earworm Moth
- Heliothis phloxiphagaSpotted Straw Sun Moth, Darker Spotted Straw Moth
- Idia aemulaCommon Idia
- Lacinipolia olivaceaOlive Arches, Olive Groundcat
- Melanchra adjunctaHitched Arches
- Papaipema nebrisStalk Borer
- Pyrrhia exprimensPurple-Lined Sallow, Purple-Lined Sun Moth
- Sparganothis xanthoidesMosaic Sparganothis
6BeesSoutheastern regional records
Southeastern regional records · Phlox
Individual names are not available yet.
Noori, Seltmann & Orr 2026, A curated and integrated dataset for exploring global bee-plant interactions (GloBI), Zenodo, CC BY 4.0
0Specialist beesPollen specialists
2BirdsRecorded genus food-resource interactions; not a state feeding claim
Recorded genus food-resource interactions; not a state feeding claim · Phlox
- Centrocercus urophasianusGreater Sage-Grouse
- Tympanuchus pallidicinctusLesser Prairie-Chicken
Direct food only: birds recorded eating this genus across North America. Caterpillars on host plants also feed nesting birds. NC Native Plant Society: butterfly gardening
Flies 2
- Scepsis fulvicollis
- Syrphus americanus
Flower visits · Carlinville, Illinois, USA
Adult butterflies / moths 2
- Anosia plexippus
- Papilio asterias
Flower visits · Carlinville, Illinois, USA
No records yet · Ants · Beetles · Other wasps · Other insects
Plant details
- Family
- Polemoniaceae
- Hardiness
- Zones 3a–8b
- Soil pH
- Acidic to neutral
- Flower color
- Pink, purple, red or white
- Growth rate
- Moderate
- Growth habit
- Single crown
- Foliage color
- Green
- Fruit begins
- June
- Fruit ends
- July
Safety has not been reviewed for this plant; check toxicity and thorns before planting.
Growing sources and scope
- Bloom · “April to June” · FloraQuest: Carolinas, Georgia (Southeastern Flora Team), phone app (app page) (ranked first; USDA PLANTS differs) · Carolinas and Georgia
- Flower color · “Pink, purple, red or white” · NC Extension Plant Toolbox (ranked first; USDA PLANTS differs)
- Foliage color · “Green” · USDA PLANTS · Nationwide species characteristics; local growing conditions may vary
- Fruit begins · “June” · FloraQuest: Carolinas, Georgia (Southeastern Flora Team), phone app (app page) (ranked first; USDA PLANTS differs) · Carolinas and Georgia
- Fruit ends · “July” · FloraQuest: Carolinas, Georgia (Southeastern Flora Team), phone app (app page) (ranked first; USDA PLANTS differs) · Carolinas and Georgia
- Growth habit · “Single crown” · USDA PLANTS · Nationwide species characteristics; local growing conditions may vary
- Growth rate · “Moderate” · USDA PLANTS · Nationwide species characteristics; local growing conditions may vary
- Hardiness · “Zones 3a–8b” · NC Extension Plant Toolbox
- Height · “2–4 feet” · NC Extension Plant Toolbox (ranked first; Tennessee Smart Yards, USDA PLANTS differ)
- Life cycle · “Perennial” · NC Extension Plant Toolbox
- Light · “Full sun (6 or more hours of direct sunlight a day); Partial shade (direct sunlight only part of the day, 2-6 hours)” · NC Extension Plant Toolbox (ranked first; Tennessee Smart Yards differs)
- Soil · “Moist; Occasionally wet” · NC Extension Plant Toolbox (ranked first; Tennessee Smart Yards differs)
- Soil pH · “Acidic to neutral” · NC Extension Plant Toolbox
- Spread · “2–2.5 feet” · NC Extension Plant Toolbox
Conservation status
| Virginia rank | S4 |
|---|---|
| Global rank | G5 |
| VA status | Not verified |
| Federal status | Not verified |
Will it fit your yard?
Check this plant against your county, sun and soil moisture. Conditions are checked in your browser.
Sources
- Digital Atlas of the Virginia Flora
- USDA PLANTS
- Vascular Plants of North Carolina (NC Natural Heritage Program)
- FloraQuest: Northern Tier (Weakley), phone app (app page)
- NatureServe Explorer
- Shropshire & Tallamy 2025, Lepidoptera of North America north of Mexico, ZooKeys 1261 (ODbL)
- Noori, Seltmann & Orr 2026, A curated and integrated dataset for exploring global bee-plant interactions (GloBI), Zenodo, CC BY 4.0
- Smith, Bachelder, Russell, Morales, Mosher & Seltmann 2024, Bee-Specialization-Modeling v0.6.1 (specialist host table compiled from J. Fowler's pollen specialist bee lists), Zenodo, CC BY 4.0
- Hurlbert, Olsen, Sawyer & Winner 2021, Avian Diet Database, Scientific Data 8: 260 (CC0)
- Narango, Tallamy & Shropshire 2020, Few keystone plant genera support the majority of Lepidoptera species, Nature Communications