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Saint Johnswort Hypericum tenuifolium

Other plants called Saint Johnswort:

Previously known as:

  • Hypericum galioides┬ávar.┬áreductum
  • Hypericum reductum
Phonetic Spelling
hy-PER-ih-kum
Description

Atlantic St. John's Wort or Sandhill St. John's-wort is one of more than 400 species of perennial, flowering shrubs in the St. John's wort family, Hypericaceae. Atlantic St. John's Wort is native to the Southeastern United States and often found in found in wet to moist habitats in from North Carolina south to Florida.  Its habitat includes dry, open, sandy areas such as pine flat woods, pine savannas, and sand hills.  Atlantic St. John's-wort is a small, spreading shrub growing 4–20 inches tall and forming mats.  This plant is slightly salt tolerant.

It requires a moist well-drained site in sun to partial shade although it tolerates most soil types, including dry soil, and full sun will maximize blooms. It can be used as a ground cover or in groupings near water features.

Diseases, Insect Pests, and Other Plant Problems:

No known diseases or insect pests.

See this plant in the following landscape:
Cultivars / Varieties:
Tags:
#evergreen#native tree#yellow flowers#native shrub#salt tolerant#mounding#NC native#native garden#pollinator plant#wildflower garden#fantz#evergreen shrub#food source summer#food source fall#food source nectar#food source pollen#Piedmont Mountains FACU#Coastal FACU#bee friendly#Audubon#stormwater demo garden orange co#coastal plant
 
Cultivars / Varieties:
Tags:
#evergreen#native tree#yellow flowers#native shrub#salt tolerant#mounding#NC native#native garden#pollinator plant#wildflower garden#fantz#evergreen shrub#food source summer#food source fall#food source nectar#food source pollen#Piedmont Mountains FACU#Coastal FACU#bee friendly#Audubon#stormwater demo garden orange co#coastal plant
  • Attributes:
    Genus:
    Hypericum
    Species:
    tenuifolium
    Family:
    Hypericaceae
    Life Cycle:
    Perennial
    Woody
    Recommended Propagation Strategy:
    Division
    Seed
    Country Or Region Of Origin:
    Southeastern United States
    Distribution:
    North Carolina south to Florida and west to Alabama.
    Wildlife Value:
    This plant attracts bees and other pollinators.
    Dimensions:
    Height: 1 ft. 0 in. - 2 ft. 0 in.
    Width: 1 ft. 0 in. - 2 ft. 0 in.
  • Whole Plant Traits:
    Plant Type:
    Ground Cover
    Native Plant
    Shrub
    Wildflower
    Woody Plant Leaf Characteristics:
    Broadleaf Evergreen
    Deciduous
    Habit/Form:
    Clumping
    Dense
    Erect
    Mounding
    Growth Rate:
    Slow
    Maintenance:
    Low
    Texture:
    Medium
  • Cultural Conditions:
    Light:
    Full sun (6 or more hours of direct sunlight a day)
    Partial Shade (Direct sunlight only part of the day, 2-6 hours)
    Soil Texture:
    Clay
    Loam (Silt)
    Sand
    Soil Drainage:
    Good Drainage
    Moist
    Occasionally Dry
    NC Region:
    Coastal
    Mountains
    Piedmont
    USDA Plant Hardiness Zone:
    7b, 7a, 8a, 8b, 9b, 9a, 10b, 10a
  • Fruit:
    Fruit Color:
    Brown/Copper
    Display/Harvest Time:
    Fall
    Summer
    Fruit Type:
    Capsule
    Fruit Length:
    < 1 inch
    Fruit Width:
    < 1 inch
    Fruit Description:
    A (2)3-5 celled capsule, sometimes fleshy. Displays from July to October.
  • Flowers:
    Flower Color:
    Gold/Yellow
    Flower Inflorescence:
    Cyme
    Flower Value To Gardener:
    Long Bloom Season
    Showy
    Flower Bloom Time:
    Summer
    Flower Shape:
    Cup
    Flower Petals:
    4-5 petals/rays
    Flower Size:
    < 1 inch
    Flower Description:
    Solitary or cymose, terminal or axillary. Yellow (usually) 5-petaled (rarely 4), 5 sepals (rarely 4); stamens numerous, in bundles or in showy boss. Blooms from June to September.
  • Leaves:
    Woody Plant Leaf Characteristics:
    Broadleaf Evergreen
    Deciduous
    Leaf Color:
    Green
    Leaf Feel:
    Rough
    Leaf Type:
    Simple
    Leaf Arrangement:
    Opposite
    Whorled
    Leaf Shape:
    Oblanceolate
    Leaf Margin:
    Entire
    Hairs Present:
    No
    Leaf Length:
    3-6 inches
    Leaf Width:
    < 1 inch
    Leaf Description:
    Simple, very narrow leaves; 2-edged stem. Opposite or whorled, decussate, entire; sessile or petiole short.
  • Stem:
    Stem Is Aromatic:
    No
    Stem Cross Section:
    Round
    Stem Description:
    Contain 2 to 4(up to 6) ridges on newer growth, smooth and rounded on older growth.
  • Landscape:
    Landscape Location:
    Coastal
    Naturalized Area
    Riparian
    Landscape Theme:
    Native Garden
    Pollinator Garden
    Rain Garden
    Design Feature:
    Border
    Mass Planting
    Attracts:
    Bees
    Pollinators
    Songbirds
    Resistance To Challenges:
    Drought
    Salt