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Hypericum tetrapterum
Hypericum tetrapterum
Hypericum tetrapterum
Hypericum tetrapterum

Hypericum tetrapterum

TAXONOMY

FamilyHypericaceae
GenusHypericum
Zone5

ABOUT

Hypericum tetrapterum, commonly known as Square-stalked St John's-wort, is a perennial plant in the family Hypericaceae. It is native to Europe and prefers temperate climates. The plant is known for its square stems and bright yellow flowers. It typically grows in moist, grassy areas and along stream banks.

ALSO KNOWN AS

Square-Stalked St John's-Wort
Square-Stalk St. John's-Wort
Square-Stemmed St. John's Wort
St. Peter's-Wort
Hypericum acutum
Hypericum confertum
Hypericum fallax var. quadrangulare
Hypericum quadrangulare
Hypericum quadrangulum var. patulum
Hypericum quadrangulum var. tetrapterum
Hypericum quadratum
Hypericum quadrialatum

OVERVIEW

WaterWet
SoilLoamy
LightIndirect Bright (6 Hours)
Temperature18° C
Humidity60%
Dormancy3 Months
pH6.5
Pressure1,013 mbar

DETAILS

Care Instructions
Hypericum tetrapterum thrives in moderate temperatures and prefers bright, indirect light. It requires regular watering to keep the soil evenly moist but not waterlogged. The plant benefits from moderate humidity levels and should be kept in a well-ventilated area.
Soil
This plant prefers loamy soil that is well-draining yet retains moisture. A mix of garden soil with some organic matter like compost works well. Ensure the soil is not too compact to allow for proper root growth.
Fertilizer
Use a balanced fertilizer with an N-P-K ratio of 10-10-10. Fertilize the plant once a month during the growing season to promote healthy growth and flowering.
Repotting
Repot Hypericum tetrapterum every 2-3 years or when it outgrows its current pot. Choose a slightly larger pot with good drainage. Gently remove the plant from its old pot, shake off excess soil, and place it in the new pot with fresh soil.
Propagation
Propagate this plant through stem cuttings or division. The best time to propagate is in the spring or early summer. For stem cuttings, take a healthy cutting, dip it in rooting hormone, and plant it in moist soil. For division, carefully separate the plant into smaller sections and replant them.
Pruning
Prune Hypericum tetrapterum in early spring to remove dead or damaged stems and to shape the plant. Regular pruning encourages bushier growth and more abundant flowering.
Toxicity
Hypericum tetrapterum is not known to be toxic to pets or humans. However, it is always best to keep plants out of reach of pets and children to avoid any accidental ingestion.
Additional
Hypericum tetrapterum can be susceptible to rust and leaf spot diseases. Ensure good air circulation around the plant and avoid overhead watering to minimize the risk of these issues.
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