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Bushy St. John's-wort

Hypericum densiflorum

Found in bogs, streambanks, dry to moist forests, rock outcrops, moist forests, pine savannas. Weakley, Flora of the Southeastern United States (2025), South Central edition What its natural habitat tells you

71
Strong

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

Profile 100%

Height
2–7 feet
Spread
3–6 feet
Light
Full sun, Partial shade
Soil moisture
Somewhat dry to moist

Space about 4.5 ft apart from its recorded spread, about 5 per 100 sq ft. Enter your bed size for a count

Will it fit your yard?

At a glance

Life cycle
Perennial
Leaves
Deciduous
Bloom
June to September
Fruiting season
Spring to summer

Recorded in 12 Alabama counties.

Natural habitats

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

1 of 5

Cliffs, ledges and rocky summits

Trees and rocks on Little Kennesaw Mountain.
Named place / source context. Shown: Kennesaw Mountain National Battlefield Park, Georgia, a neighboring state.Trees and rocks on Little Kennesaw Mountain., Unidentified in HFC record, undated. Public domain. Source record.

Streams, rivers and their banks

Flowing water and its banks, bars and rocky shoals.

Dry forests and woodlands

Forests and open woodlands on dry ridges and slopes, often oak or pine.

Moist forests

Forests on moist but not wet ground, such as rich slopes and ravines.

Pine savannas

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

All habitats

Also found with this plant

Wildlife whose habitat models include habitats this plant grows in, in Alabama. Shared habitat, not food. 125 animals.

All wildlife of Alabama

Ecological relationships

Who uses this plant?

What these records mean

18CaterpillarsGenus host records with ranges including AL

Genus host records with ranges including AL · 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
  • Phlogophora irisOlive Angle Shades
  • Platynota flavedanaBlack-Shaded Platynota
Show all 18
  • Probole amicariaFriendly Probole
  • Sparganothis sulfureanaSparganothis Fruitworm Moth, Sulfur Leafroller, False Yellow-Head
  • Synchlora aerataWavy-Lined Emerald, Camouflaged Looper
  • Tallula watsoniWatson's Tallula
  • Zale lunataLunate Zale
  • Agonopterix hyperella
  • Caloptilia hypericella
  • 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 3a–8b
Soil pH
Acidic
Flower color
Yellow
Growth rate
Slow
Growth habit
Several stems
Foliage color
Green
Fruit begins
Spring
Fruit ends
Summer

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

Growing sources and scope
Also known as

Bushy St. John's wort; Bushy St. Johnswort; Mountain St. Johnswort

Conservation status

Alabama rankSNR
Global rankG5
AL statusNot verified
Federal statusNot verified

Conservation source Global and federal source

In your garden

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Sources