Upright st. John's wort (Hypericum erectum)

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.

Scientific classification

Species

Upright st. John's wort (Hypericum erectum)

Nances, spurges, willows and allies

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Perennial

Lifespan

Herb

Plant Type

Mid summer, Late summer

Bloom Time

30 cm to 70 cm

Plant Height

1 m to 1.5 m

Spread

Green, Blue

Leaf Color

1.5 cm

Flower Size

Yellow

Flower Color

Images of Upright st. John's wort

Distribution of Upright st. John's wort

Distribution Map

Upright st. John's wort is a plant naturally found in Eastern Asia, where it inhabits temperate regions. Over time, its range has expanded beyond its native areas, chiefly through the processes of naturalization and human introduction. However, the specific details about where upright st. John's wort has been introduced remain broad, focusing on its prevalence in Eastern Asia rather than a list of international locations.

Native

Cultivated

Invasive

Introduced

No species reported

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Habitat

Grassy places and thin woods in hills and mountains, grassy slopes

Care Guide for Upright st. John's wort

Every week

Water

Full sun

Sunlight

5 - 35 ℃

Ideal Temperature

Water: Upright st. John's wort thrives in temperate regions with moderate moisture. Water weekly to maintain health, allowing roots to absorb moisture without waterlogging. Sensitivity to soil quality affects water uptake and growth. This species prefers outdoor cultivation, benefiting from consistent hydration but tolerates brief dryness.

Fertilize: Upright st. John's wort benefits from balanced fertilizers containing equal parts nitrogen, phosphorus, and potassium to promote healthy growth. Follow the manufacturer's guidelines for application during the growing season to enhance root development, flowering, and overall plant vigor.

Pruning: Upright st. John's wort, with upright stems and bright yellow blooms, should be pruned in early to late spring. Trim about one-third of its height and remove dead wood to improve air circulation, promote healthy growth, and enhance flowering for a bushier shape.

Propagation: Upright st. John's wort is a versatile perennial featuring bright yellow flowers and medicinal properties. Successful propagation via division involves splitting the rootball into sections, each with roots and a stem, during dormancy to ensure quick establishment and high survival rates.

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