UK Flowers: Herbs, Shrubs, Vines & Trees
UK Flowers

UK Common St. John's Wort

Herb Icon Native Flower     First Aid Symbol  Edible Symbol  Mildly Toxic
Image of Common St. John's Wort
Hypericum perforatum
Family: Hypericaceae

Flower Properties

Property Value
English Name Common St. John's Wort
Scientific Name Hypericum perforatum
MainColor Yellow
PlantType Herb Icon Herb
Distribution Native Flower Native
Season Found July (Jul - Non)
ImageUrl Hypericum-003
Photographer DP
Location Found Bedmond Lane WS
Country Found UK
Photo Quality A

Flower Details

Description

St John's Wort is a perennial herb with bright yellow flowers that have five petals and are dotted with black glands. The leaves are oval and perforated with tiny translucent dots, which are visible when held up to the light. It typically blooms from June to September.

Distribution

It is native to Europe, but has widely naturalised in temperate regions across the world, including North America and Australia. It thrives in meadows, open woods, and along roadsides.

Medicinal/Other Uses First Aid Symbol

✅ St John's Wort is widely used for its antidepressant properties and is also applied to the skin for wounds and burns. It has been used in traditional medicine for centuries.

Edibility Edible Symbol  

Caution Advised - while not typically consumed as food, it is used in herbal teas and extracts.

Human Toxicity Mildly Toxic
Mildly Toxic Mildly_Toxic

Mildly Toxic - may cause photosensitivity, leading to skin irritation when exposed to sunlight. Interaction with certain medications can result in adverse effects.

Pet Toxicity Pet Toxicity

Highly Toxic to dogs and cats - ingestion can lead to increased photosensitivity and gastrointestinal upset.

Active Compounds

Hypericin, hyperforin, flavonoids

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