Hairy St. John's-wort

Hypericum setosum

Found in pine savannas, wet pine flatwoods, boggy areas, adjacent ditches, fireplow lines, and scrapes. FloraQuest, phone app (app page) What its natural habitat tells you

Strong

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

Profile 94%

Height: Up to about 2.5 feet
Light: Partial shade, Full sun
Soil moisture: Moist to wet

Will it fit your yard?

Hypericum setosum — flower photograph — (c) Laura Clark, some rights reserved (CC BY) · CC BY 4.0 · Original photograph

At a glance

Life cycle: Perennial
Bloom: May to September

JFMAMJJASOND

Not yet recorded · Spread · Leaves

Recorded in 24 Florida counties.

Habitats

Pine savannas; pine flatwoods; roadsides, fields and disturbed ground.

Each habitat page lists the plants and wildlife also found there. All habitats

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
Flower color: Yellow

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

Growing sources and scope

Bloom · “May to September” · FloraQuest: Carolinas, Georgia (Southeastern Flora Team), phone app (app page) · Carolinas and Georgia
Flower color · “Yellow” · Lady Bird Johnson Wildflower Center
Height · “Up to about 2.5 feet” · Lady Bird Johnson Wildflower Center
Life cycle · “Perennial” · Lady Bird Johnson Wildflower Center
Light · “Partial shade; Full sun (documented habitat)” · FloraQuest: Carolinas, Georgia (Southeastern Flora Team), phone app (app page) · Carolinas and Georgia
primary_flower_color · “yellow” · Lady Bird Johnson Wildflower Center
Soil · “Moist; Wet (documented habitat)” · FloraQuest: Carolinas, Georgia (Southeastern Flora Team), phone app (app page) · Carolinas and Georgia

Also known as

Hairy St. John's wort

Conservation status

Florida rank	SNR
Global rank	G4G5
FL status	Not verified
Federal status	Not verified

Conservation source Global and federal source

In your garden

Will it fit your yard?

Check this plant against your county, sun and soil moisture. Conditions are checked in your browser.

Choose a county to begin.

How to check your spot

Hairy St. John's-wort

At a glance

Habitats

Who uses this plant?

Plant details

Conservation status

Will it fit your yard?

Sources

More Hypericum