Hairy St John's-wort (Hypericum hirsutum)

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.

Scientific classification

Species

Hairy St John's-wort (Hypericum hirsutum)

Nances, spurges, willows and allies

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Perennial

Lifespan

Herb

Plant Type

Summer, Fall

Bloom Time

45 cm

Plant Height

45 cm

Spread

Green

Leaf Color

9 mm

Flower Size

Yellow

Flower Color

Images of Hairy St John's-wort

Distribution of Hairy St John's-wort

Distribution Map

Hairy St John's-wort is native to a broad range of temperate regions, spanning from western Europe to North Africa, throughout many parts of central and eastern Europe, and extending into western Asia. It has also been noted in parts of central and northeastern Asia. Cultivation of hairy St John's-wort reaches beyond its native habitat but remains primarily within regions that match its natural temperate climate preferences.

Native

Cultivated

Invasive

Introduced

No species reported

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Habitat

Rough and ungrazed grassland, clearings and rides in woodland, banks of rivers and road verges

Care Guide for Hairy St John's-wort

Every week

Water

Full sun

Sunlight

15 - 35 ℃

Ideal Temperature

Water: Hairy St John's-wort, thriving in moderate climates, prefers well-drained soils and balanced moisture levels. It can withstand brief dryness and requires watering weekly for optimal hydration. As an herbaceous perennial, hairy St John's-wort aligns its growth cycles with seasonal rainfall patterns.

Fertilize: Use a balanced fertilizer for 'hairy St John's-wort' in spring and midsummer to encourage growth and flowering. Follow manufacturer guidelines to avoid over-fertilization, adjusting for young or dormant plants. Water thoroughly after fertilizing to enhance nutrient uptake and protect roots.

Pruning: To maintain the health and appearance of hairy St John's-wort, prune in early to late spring before new growth. Remove dead or diseased stems for better airflow and shape. Regular pruning promotes fuller growth and enhances bloom quality, following trusted horticultural practices for optimal results.

Propagation: Hairy St John's-wort is a perennial herb with hairy stems and bright yellow flowers. Propagate via stem cuttings from the woody base in well-draining soil. Keep soil moist and ensure indirect sunlight. With care, cuttings will develop roots, ready for transplanting.

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