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Atlantic St. John's-wort

Hypericum tenuifolium

Found in pine flatwoods, pine savannas, longleaf pine sandhills. Weakley, Flora of the Southeastern United States (2025), Florida edition What its natural habitat tells you

70
Strong

Native to Florida. How scores work Is it native here?

Profile 82%

Height
1–2 feet
Spread
1–2 feet
Light
Full sun, Partial shade
Soil moisture
Somewhat dry to moist

Space about 1.5 ft apart from its recorded spread, about 44 per 100 sq ft. Enter your bed size for a count

Will it fit your yard?

At a glance

Life cycle
Woody perennial
Leaves
Evergreen

Not yet recorded · Bloom

Recorded in 41 Florida counties.

Natural habitats

Places it grows wild. Not a planting requirement. Each habitat page lists the plants and wildlife also found there.

1 of 3

Pine flatwoods

Flat, sandy Coastal Plain pine woodlands, wetter than sandhills and denser than savannas.

Pine savannas

Open, fire-kept longleaf pine stands over grasses and wildflowers on wet to moist sandy soil.

Sandhills

Dry, deep-sand ridges with longleaf pine and turkey oak, kept open by fire.

All habitats

Also found with this plant

Wildlife whose habitat models include habitats this plant grows in, in Florida. Shared habitat, not food. 167 animals.

All wildlife of Florida

Ecological relationships

Who uses this plant?

What these records mean

15CaterpillarsGenus host records with ranges including FL

Genus host records with ranges including FL · Hypericum

  • Acleris maculidorsanaStained-Back Leafroller Moth
  • Choristoneura rosaceanaOblique-Banded Leafroller Moth, Rosaceous Leaf Roller
  • Eupithecia miserulataCommon Eupithacia, Common Pug
  • Iodopepla u-albumBurgundy St. Johnswort Moth, White-Eyed Borer
  • Iridopsis ephyrariaPale-Winged Gray
  • Mocis latipesSmall Mocis, Striped Grass Looper
  • Nedra ramosulaGray Half-Spot
  • Nemoria bistriariaTwo-Striped Emerald, Red-Fringed Emerald
  • Platynota flavedanaBlack-Shaded Platynota
  • Probole amicariaFriendly Probole
Show all 15
  • Sparganothis sulfureanaSparganothis Fruitworm Moth, Sulfur Leafroller, False Yellow-Head
  • Tallula watsoniWatson's Tallula
  • Zale lunataLunate Zale
  • Coleotechnites nigritus
  • Xenotemna pallorana
Shropshire & Tallamy 2025, Lepidoptera of North America north of Mexico, ZooKeys 1261 (ODbL)
43BeesSoutheastern regional records

Southeastern regional records · Hypericum

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
1BirdsRecorded genus food-resource interactions; not a state feeding claim

Recorded genus food-resource interactions; not a state feeding claim · Hypericum

  • Aythya collarisRing-necked Duck
Hurlbert, Olsen, Sawyer & Winner 2021, Avian Diet Database, Scientific Data 8: 260 (CC0)

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

No records yet · Ants · Beetles · Flies · Adult butterflies / moths · Other wasps · Other insects

Growing and identification

Plant details

Family
Hypericaceae
Hardiness
Zones 7a–10b
Flower color
Yellow

Safety has not been reviewed for this plant; check toxicity and thorns before planting.

Growing sources and scope
Also known as

Atlantic St. John's wort; Hypericum reductum

Conservation status

Florida rankS4S5
Global rankG5
FL statusNot verified
Federal statusNot verified

Conservation source Global and federal source

In your garden

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Sources