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St. John's worts (Hypericum)
St. John's worts are a diverse group of flowering plants, and all of these species are commonly referred to by the genus's common name. Many species in this group are considered noxious weeds or invasive. They are named after the 16th-century martyr St. John because of the red secretions that are exuded when the plants are crushed or damaged.
Lifespan
Perennial
Plant Type
Shrub
Key Facts About St. John's worts
Feedback
Attributes of St. John's worts
Leaf type
Evergreen
Ideal Temperature
10 - 35 ℃
Scientific Classification of St. John's worts
Distribution of St. John's worts
Feedback
Distribution Map of St. John's worts
Native
Cultivated
Invasive
Potentially invasive
Exotic
No species reported
How to Grow and Care for St. John's worts
Feedback
The st. John's worts genus, commonly named St. John's Wort, comprises flowering plants often used as ornamental and medicinal varieties. Basic care needs for st. John's worts include full to partial sun exposure and well-drained soils that are moderately rich. They prefer consistent moisture but can tolerate dry periods. While generally resilient, st. John's worts faces challenges from pests like aphids and diseases like rust or leaf spots. Environmental sensitivities include poor tolerance for excessive humidity or overly moist soil. Seasonal considerations involve pruning and deadheading in early spring to encourage fresh growth, while reducing watering in winter can protect against root rot.
How to Water St. John's worts?
What Are the Sunlight Requirements for St. John's worts?
How to Propagate St. John's worts?
How to Plant St. John's worts?
Exploring the St. John's worts Plants
Feedback
8 most common species：
Creeping St. John's wort
The creeping St. John's wort (Hypericum calycinum) is a low, creeping, woody shrub commonly found on steep European slopes. The common name has roots in biblical texts, but has historically been applied to several different species; this particular species is likely not the same as the creeping St. John's wort mentioned in the bible.
Tutsan
Tutsan (Hypericum androsaemum) is related to the more common St. John's Wort. It is native to Europe, Iran, and the Mediterranean region. This fast-growing plant is considered invasive in some countries - particularly in Australia where neither livestock nor any wild animals will eat it.
Chinese St John's wort
Chinese St John's wort (Hypericum monogynum) is a semi-evergreen flowering shrub that grows best in moist, well-drained soil in sunny locations. Chinese St John's wort grows along borders and along garden walls. This species is normally free of pests and disease.
Common St. John's wort
Common St. John's wort (*Hypericum perforatum*) is a plant species that is native to Europe and Central Asia. Common St. John's wort is considered poisonous to livestock and can cause problems for humans if consumed. This dense, fast-growing plant has been introduced to North America and Australia, where it is often viewed as an invasive species.
Goldencup St. John's wort
The goldencup St. John's wort (Hypericum patulum) is cultivated as an ornamental shrub because of its showy yellow flowers. The goldencup St. John's wort is native to China but is now found in many places around the world, typically at high altitudes.
Shrubby St. John's wort
Shrubby St. John's wort (*Hypericum prolificum*) is a flowering shrub native to the eastern United States and Canada. It grows in woodlands, swamps, and near rivers and streams. This plant is known for the numerous pollen-producing organs its flowers contain.
St. Andrew's cross
St. Andrew's cross (Hypericum hypericoides) is a small evergreen perennial shrub. It gets its name from its yellow flowers, which have four petals in the shape of a cross. St. Andrew, who was the patron saint of Scotland, was said to have been martyred on a cross. The bark and stems have a reddish color.
Trailing St. John's wort
Trailing St. John's wort is a common plant within the U.K. The genus name comes from the Greek words meaning "above" and "picture." This is because people once hung the plant above pictures because they believed it would ward off evil spirits. The common name dates back to religious rituals for the Feast of St. John the Baptist in summer which corresponded with the time these plants peaked and bloomed.
All Species of St. John's worts
Creeping St. John's wort
Creeping St. John's wort
The creeping St. John's wort (Hypericum calycinum) is a low, creeping, woody shrub commonly found on steep European slopes. The common name has roots in biblical texts, but has historically been applied to several different species; this particular species is likely not the same as the creeping St. John's wort mentioned in the bible.
Tutsan
Tutsan
Tutsan (Hypericum androsaemum) is related to the more common St. John's Wort. It is native to Europe, Iran, and the Mediterranean region. This fast-growing plant is considered invasive in some countries - particularly in Australia where neither livestock nor any wild animals will eat it.
Chinese St John's wort
Chinese St John's wort
Chinese St John's wort (Hypericum monogynum) is a semi-evergreen flowering shrub that grows best in moist, well-drained soil in sunny locations. Chinese St John's wort grows along borders and along garden walls. This species is normally free of pests and disease.
Common St. John's wort
Common St. John's wort
Common St. John's wort (*Hypericum perforatum*) is a plant species that is native to Europe and Central Asia. Common St. John's wort is considered poisonous to livestock and can cause problems for humans if consumed. This dense, fast-growing plant has been introduced to North America and Australia, where it is often viewed as an invasive species.
Goldencup St. John's wort
Goldencup St. John's wort
The goldencup St. John's wort (Hypericum patulum) is cultivated as an ornamental shrub because of its showy yellow flowers. The goldencup St. John's wort is native to China but is now found in many places around the world, typically at high altitudes.
Shrubby St. John's wort
Shrubby St. John's wort
Shrubby St. John's wort (*Hypericum prolificum*) is a flowering shrub native to the eastern United States and Canada. It grows in woodlands, swamps, and near rivers and streams. This plant is known for the numerous pollen-producing organs its flowers contain.
St. Andrew's cross
St. Andrew's cross
St. Andrew's cross (Hypericum hypericoides) is a small evergreen perennial shrub. It gets its name from its yellow flowers, which have four petals in the shape of a cross. St. Andrew, who was the patron saint of Scotland, was said to have been martyred on a cross. The bark and stems have a reddish color.
Trailing St. John's wort
Trailing St. John's wort
Trailing St. John's wort is a common plant within the U.K. The genus name comes from the Greek words meaning "above" and "picture." This is because people once hung the plant above pictures because they believed it would ward off evil spirits. The common name dates back to religious rituals for the Feast of St. John the Baptist in summer which corresponded with the time these plants peaked and bloomed.
Imperforate St. John's wort
Imperforate St. John's wort
Imperforate St. John's wort is a herb that grows in damp meadows, pastures, and disturbed ground. It is distinguishable from other, similar species of its genus by its stem, which has four edges, and the rounded tips of its sepals. This herbaceous perennial flowers in late summer.
Dwarf St. John's wort
Dwarf St. John's wort
Common to parts of North America, dwarf St. John's wort or Hypericum mutilum, is an annual and perennial herb. Seeds of the dwarf St. John's wort are distributed by wading birds that feed in its moist, muddy habitat.
Hairy St John's-wort
Hairy St John's-wort
Unlike other species of St. John's wort, the hairy St John's-wort grows in well-drained soil rather than bogs. It's also the only species with hairy leaves (thus the name). It can grow up to 91 cm tall. Hairy St John's-wort is particularly common in the British Isles.
Upright st. John's wort
Upright st. John's wort
It grows up to 20 to 60 cm in height and blooms about 2 cm yellow flowers in summer. A brown oil spot is seen on the surface of the leaf, which is a photoactive substance called hypericin, and when it is exposed to sunlight, it causes dermatitis and edema.
Great St. John's wort
Great St. John's wort
Great St. John's wort (Hypericum ascyron) is a tall perennial native to Northeastern and Midwestern North America and Eastern Asia. It produces magnificent golden yellow flowers. This easy-growing shrub thrives in marshes, river banks, and fields under full sun to moderate shade.
Spotted St. John's wort
Spotted St. John's wort
Spotted St. John's wort (Hypericum punctatum) is a plant species that is native to the American midwest and Canada. This species grows in floodplains, roadsides, moist fields, and thickets. Its common name comes from medieval European celebrations of a feast day honoring the Catholic Saint John.
Matted St. John's-wort
Matted St. John's-wort
Matted St. John's-wort (Hypericum japonicum) is a widespread wildflower that occurs in a large variety of mainly damp tropical habitats from rice fields to grasslands. While it isn't a common ornamental species, its dense and compact growth forms make it a good candidate for ground cover. Its small yellow flowers offer up to six months of garden interest.
Nepal St Johns wort
Nepal St Johns wort
nepal St Johns wort is grown ornamentally for its interesting pointed leaves and its large and showy yellow flowers. This shrub thrives in conditions of full or partial sunlight that reflect its native thickets, woodlands, and pasture habitats.
Slender St. John's wort
Slender St. John's wort
The slender St. John's wort has heart-shaped leaves and grows throughout Britain. When the glands on the plant are crushed, a compound within creates red stains. In the sixteenth century, these red stains were linked to the martyrs - and St. John in particular - which led to the English and German common name of the plant.
St. Peter's wort
St. Peter's wort
St. Peter's wort (Hypericum crux-andreae) is a species that's indigenous to eastern North America. The most common place you'll find this tiny shrub is anywhere the soil's moist and sandy. That's why you'll find this species flourishing in such environments as muddy bogs, humus-rich streambanks, and freshwater marshes.
Canary island St. John's wort
Canary island St. John's wort
Also known as canary island St. John's wort, this plant has vibrant yellow flowers and glossy green leaves. Avoid grazing animals as it can be toxic to them.
Alpine St. John's wort
Alpine St. John's wort
Richers johanniskraut is a perennial plant that reaches heights of growth of 10 to 60 centimeters. Its creeping, feathered basic axis lumbers. There are several arched ascending, two-edged stems. The seated, cross-leaves are up to 14 cm long, pointed-ovate and occupied at the edge of the underside with black, seated glands.
Forrest St Johns wort
Forrest St Johns wort
It is a semi-evergreen shrub growing to 1.2 m tall by 1.5 m broad. It has oval leaves which turn red in autumn and bowl-shaped yellow flowers with prominent stamens in late summer.
Orangegrass
Orangegrass
Hypericum gentianoides is a plant in the St. John's wort family that's commonly called orangegrass because of its yellow and orange colors. The plant is native to eastern North America and mostly grows in upland regions and sandy soils.
Nits and lice
Nits and lice
Nits and lice(Hypericum drummondii) is a flowering plant that's usually found in dry, gravelly soils in fields, dry woods, and coastal prairies. The species belongs to a very diverse genus and it was named after the Scottish-born American naturalist Thomas Drummond.
Hypericum cerastoides
Hypericum cerastoides
Hypericum cerastoides is a captivating plant that offers more than meets the eye. Its delicate flowers and slender stems add elegance to any garden. In addition to its aesthetic appeal, this plant has fascinating traits that attract insects and birds, ensuring a lively ecosystem. Moreover, hypericum cerastoides boasts a rich history. With its captivating features and interesting backstory, hypericum cerastoides is truly a unique and enchanting addition to any landscape.
Cedarglade St. John's wort
Cedarglade St. John's wort
It is a medium-sized shrub, growing 61 to 305 cm in height with a highly-branching form. The stems are green when young, becoming reddish brown and peeling or plating with age. The opposite leaves are sessile, up to 7 cm long and 2 cm across with an oblong to lanceolate shape.
Bedstraw St. John's wort
Bedstraw St. John's wort
It is a slender, branching shrublet up to 1.5 m tall with linear to oblanceolate leaves. The sessile leaves are 15 to 37 cm long and 1 to 7 mm across with mostly acute tips. The flowers are small, in terminal and axillary cymes, with very narrow sepals. Each flower is 9 to 14 mm in diameter with 5 bright yellow petals and 60–120 stamens.
St. John's Wort
St. John's Wort
The Hypericum × inodorum grows to be 2 m tall. It has a branching base with gray-brown bark. Its leaves give off a goat-like scent when crushed (caproic acid).
Perforate St. John's Wort
Perforate St. John's Wort
Hypericum montanum are normally from 20 to 80 cm. Its flower has five petals and it flowers in summer.
Small St. John's wort
Small St. John's wort
The small St. John's wort (Hypericum gramineum) is native to Australia, but is often confused with introduced species such as Hypercerium androsaemum. It can however be distinguished by the absence of black dots on the leaves and petals, which are oil glands.
Cedarglade St. John's wort 'Sunburst'
Cedarglade St. John's wort 'Sunburst'
This perennial cultivar of St. John’s wort is known for its blue-green leaves and yellow flowers. The flowers have a unique appearance with a poofy ball-like center that is surrounded by buttercup-shaped petals. Cedarglade St. John's wort 'Sunburst' is often used as a shrub or hedge and can serve as an ornamental plant in garden beds.
St. John's worts 'Hidcote'
St. John's worts 'Hidcote'
A hybrid cultivar of St. John's wort, st. John's worts 'Hidcote' is a large bush that boasts masses of bright, golden-yellow, buttercup-like flowers during summer. This cultivar is one of the most popular and most reliable St. John wort cultivars, noted for its long-lasting display. It was bred in, and named after the famous Hidcote Manor Garden located in Gloucestershire, UK.
St. John's worts 'Magical Pumpkin'
St. John's worts 'Magical Pumpkin'
St. John's worts 'Magical Pumpkin' is best known for its blooms, with surges of yellow petals erupting from beautiful pink buds. Its name comes from the captivating orange berries it produces in the fall. This shrub is part of the First Editions Series of Hypericum, which have been bred to produce excellent cut flowers.
Mount olympus St. John's wort 'Sulphureum'
Mount olympus St. John's wort 'Sulphureum'
This cultivar is unique in its leaves and flower color, which inspires the name Sulphureum. The mount olympus St. John's wort 'Sulphureum' is one of two major cultivars from Hypericum olympicum 'Sulphureum', and is actually the lesser known of the two. In this form, its leaves are shaped like lances. It is popular for its beautiful and bright appearance.
Pyramidal St. John's wort
Pyramidal St. John's wort
Pyramidal St. John's wort (Hypericum triquetrifolium) is named because the flowering shrub blooms in late summer coinciding with the feast of St. John the Baptist in summer. Its yellow flowers form in clusters of five with many long dainty stamens resembling yellow firework.
St. John's worts 'Rowallane'
St. John's worts 'Rowallane'
Bearing bowl-shaped, deep-yellow flowers, St. John's worts 'Rowallane', named for the garden in which it was discovered, is an ideal ground cover for cottage and informal gardens. St. John's worts 'Rowallane', a hybrid of Hypericum leschenaultii and H. hookerianum "Charles Rogers," continues to delight during its flowering season from early to late summer.
Rose of sharon 'Golden Rule'
Rose of sharon 'Golden Rule'
Unlike other varieties of St. John’s Wort, rose of sharon 'Golden Rule' is a less aggressive but hardy ground-covering shrub known for its color-changing foliage. The leaves start out orange-yellow, then fade to green (hence the name). It also produces bright yellow flowers in the summer that attract pollinators. Many gardeners use it in difficult areas.
St. John's worts 'Red Fame'
St. John's worts 'Red Fame'
The st. John's worts 'Red Fame' offers visual interest with yellow flowers and bright red berries that inspire its name. It was bred for rust resistance and is both drought- and disease-resistant. The St. John's wort cultivar is low maintenance and can be grown in borders, slopes, and as a hedge.
St. John's worts 'Magical Universe'
St. John's worts 'Magical Universe'
St. John's worts 'Magical Universe' is a hypericum or St John’s Wort cultivar. This cultivar is part of the ‘Magical’ series, all of which have bright berry and flower color combinations. The foliage is aromatic and turns from blue-green to red and orange in the fall.
St. John's worts 'Tricolor'
St. John's worts 'Tricolor'
Where the parent plants, H. calycinum and H. patulum, have plain green leaves, st. John's worts 'Tricolor' has variegated green, yellow, and pink leaves, which explains the name 'tricolor'. Add attractive golden-yellow flowers and you'll see why this shrub is a highly sought-after garden specimen, perfect for containers, patios, and beds.
More Popular Genus
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Dracaena
Dracaena are popular house plants that are easy to grow. They can tolerate low-light conditions and require little watering. Their leaves range from variegated to dark green. Their characteristic traits include woody stems that grow slowly but offer a striking appearance for small spaces such as apartments or offices.
Fig trees
Fig trees have been cultivated in many regions for their fruits, particularly the common fig, F. carica. Most of the species have edible fruits, although the common fig is the only one of commercial value. Fig trees are also important food sources for wildlife in the tropics, including monkeys, bats, and insects.
Brambles
Brambles are members of the rose family, and there are hundreds of different types to be found throughout the European countryside. They have been culturally significant for centuries; Christian folklore stories hold that when the devil was thrown from heaven, he landed on a bramble bush. Their vigorous growth habit can tangle into native plants and take over.
Maples
The popular tree family known as maples change the color of their leaves in the fall. Many cultural traditions encourage people to watch the colors change, such as momijigari in Japan. Maples popular options for bonsai art. Alternately, their sap is used to create maple syrup.
Prunus
Prunus is a genus of flowering fruit trees that includes almonds, cherries, plums, peaches, nectarines, and apricots. These are often known as "stone fruits" because their pits are large seeds or "stones." When prunus trees are damaged, they exhibit "gummosis," a condition in which the tree's gum (similar to sap) is secreted to the bark to help heal external wounds.
Nightshades
Nightshades is a large and diverse genus of plants, with more than 1500 different types worldwide. This genus incorporates both important staple food crops like tomato, potato, and eggplant, but also dangerous poisonous plants from the nightshade family. The name was coined by Pliny the Elder almost two thousand years ago.
Roses
Most species of roses are shrubs or climbing plants that have showy flowers and sharp thorns. They are commonly cultivated for cut flowers or as ornamental plants in gardens due to their attractive appearance, pleasant fragrance, and cultural significance in many countries. The rose hips (fruits) can also be used in jams and teas.
Oaks
Oaks are among the world's longest-lived trees, sometimes growing for over 1,000 years! The oldest known oak tree is in the southern United States and is over 1,500 years old. Oaks produce an exceedingly popular type of wood which is used to make different products, from furniture and flooring to wine barrels and even cosmetic creams.
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About
Key Facts
Distribution
How To Care
All Species
More Genus
St. John's worts
Hypericum
St. John's worts are a diverse group of flowering plants, and all of these species are commonly referred to by the genus's common name. Many species in this group are considered noxious weeds or invasive. They are named after the 16th-century martyr St. John because of the red secretions that are exuded when the plants are crushed or damaged.
Lifespan
Perennial
Plant Type
Shrub
Key Facts About St. John's worts
Feedback
Attributes of St. John's worts
Leaf type
Evergreen
Ideal Temperature
10 - 35 ℃
Scientific Classification of St. John's worts
Distribution of St. John's worts
Feedback
Distribution Map of St. John's worts
Native
Cultivated
Invasive
Potentially invasive
Exotic
No species reported
How to Grow and Care for St. John's worts
Feedback
The st. John's worts genus, commonly named St. John's Wort, comprises flowering plants often used as ornamental and medicinal varieties. Basic care needs for st. John's worts include full to partial sun exposure and well-drained soils that are moderately rich. They prefer consistent moisture but can tolerate dry periods. While generally resilient, st. John's worts faces challenges from pests like aphids and diseases like rust or leaf spots. Environmental sensitivities include poor tolerance for excessive humidity or overly moist soil. Seasonal considerations involve pruning and deadheading in early spring to encourage fresh growth, while reducing watering in winter can protect against root rot.
How to Water St. John's worts?
What Are the Sunlight Requirements for St. John's worts?
How to Propagate St. John's worts?
How to Plant St. John's worts?
Exploring the St. John's worts Plants
Feedback
8 most common species：
Creeping St. John's wort
The creeping St. John's wort (Hypericum calycinum) is a low, creeping, woody shrub commonly found on steep European slopes. The common name has roots in biblical texts, but has historically been applied to several different species; this particular species is likely not the same as the creeping St. John's wort mentioned in the bible.
Tutsan
Tutsan (Hypericum androsaemum) is related to the more common St. John's Wort. It is native to Europe, Iran, and the Mediterranean region. This fast-growing plant is considered invasive in some countries - particularly in Australia where neither livestock nor any wild animals will eat it.
Chinese St John's wort
Chinese St John's wort (Hypericum monogynum) is a semi-evergreen flowering shrub that grows best in moist, well-drained soil in sunny locations. Chinese St John's wort grows along borders and along garden walls. This species is normally free of pests and disease.
Common St. John's wort
Common St. John's wort (*Hypericum perforatum*) is a plant species that is native to Europe and Central Asia. Common St. John's wort is considered poisonous to livestock and can cause problems for humans if consumed. This dense, fast-growing plant has been introduced to North America and Australia, where it is often viewed as an invasive species.
Show More Species
All Species of St. John's worts
Creeping St. John's wort
Tutsan
Chinese St John's wort
Common St. John's wort
Goldencup St. John's wort
Shrubby St. John's wort
St. Andrew's cross
Trailing St. John's wort
Imperforate St. John's wort
Dwarf St. John's wort
Hairy St John's-wort
Upright st. John's wort
Great St. John's wort
Spotted St. John's wort
Matted St. John's-wort
Nepal St Johns wort
Slender St. John's wort
St. Peter's wort
Canary island St. John's wort
Alpine St. John's wort
Forrest St Johns wort
Orangegrass
Nits and lice
Hypericum cerastoides
Cedarglade St. John's wort
Bedstraw St. John's wort
St. John's Wort
Perforate St. John's Wort
Small St. John's wort
Cedarglade St. John's wort 'Sunburst'
St. John's worts 'Hidcote'
St. John's worts 'Magical Pumpkin'
Mount olympus St. John's wort 'Sulphureum'
Pyramidal St. John's wort
St. John's worts 'Rowallane'
Rose of sharon 'Golden Rule'
St. John's worts 'Red Fame'
St. John's worts 'Magical Universe'
St. John's worts 'Tricolor'
More Popular Genus
Feedback
Dracaena
Dracaena are popular house plants that are easy to grow. They can tolerate low-light conditions and require little watering. Their leaves range from variegated to dark green. Their characteristic traits include woody stems that grow slowly but offer a striking appearance for small spaces such as apartments or offices.
Fig trees
Fig trees have been cultivated in many regions for their fruits, particularly the common fig, F. carica. Most of the species have edible fruits, although the common fig is the only one of commercial value. Fig trees are also important food sources for wildlife in the tropics, including monkeys, bats, and insects.
Brambles
Brambles are members of the rose family, and there are hundreds of different types to be found throughout the European countryside. They have been culturally significant for centuries; Christian folklore stories hold that when the devil was thrown from heaven, he landed on a bramble bush. Their vigorous growth habit can tangle into native plants and take over.
Maples
The popular tree family known as maples change the color of their leaves in the fall. Many cultural traditions encourage people to watch the colors change, such as momijigari in Japan. Maples popular options for bonsai art. Alternately, their sap is used to create maple syrup.
Prunus
Prunus is a genus of flowering fruit trees that includes almonds, cherries, plums, peaches, nectarines, and apricots. These are often known as "stone fruits" because their pits are large seeds or "stones." When prunus trees are damaged, they exhibit "gummosis," a condition in which the tree's gum (similar to sap) is secreted to the bark to help heal external wounds.
Nightshades
Nightshades is a large and diverse genus of plants, with more than 1500 different types worldwide. This genus incorporates both important staple food crops like tomato, potato, and eggplant, but also dangerous poisonous plants from the nightshade family. The name was coined by Pliny the Elder almost two thousand years ago.
Roses
Most species of roses are shrubs or climbing plants that have showy flowers and sharp thorns. They are commonly cultivated for cut flowers or as ornamental plants in gardens due to their attractive appearance, pleasant fragrance, and cultural significance in many countries. The rose hips (fruits) can also be used in jams and teas.
Oaks
Oaks are among the world's longest-lived trees, sometimes growing for over 1,000 years! The oldest known oak tree is in the southern United States and is over 1,500 years old. Oaks produce an exceedingly popular type of wood which is used to make different products, from furniture and flooring to wine barrels and even cosmetic creams.
Your Ultimate Guide to Plants
Identify grow and nurture the better way!
17,000 local species +400,000 global species studied
Nearly 5 years of research
80+ scholars in botany and gardening
Continue reading in our app - it's better
A database of 400000+ plants
unlimited guides at your fingertips...
unlimited guides at your fingertips...
