Contents
Description
Hypericum Henryi, commonly known as Henry’s St. John’s Wort, is an evergreen shrub that belongs to the Hypericaceae family. This plant is native to China, where it grows in forest margins, stream banks, and shrublands. It can grow up to 6 feet tall and 4 feet wide, with a dense, rounded habit. The leaves are glossy and dark green, with a leathery texture. The flowers are bright yellow, with five petals and numerous stamens.
Taxonomic Information
| Domain | Eukarya |
|---|---|
| Kingdom | Plantae |
| Phylum | Spermatophyta |
| Class | Magnoliopsida |
| Order | Malpighiales |
| Family | Hypericaceae |
| Genus | Hypericum |
Appearance
Hypericum Henryi is an evergreen shrub with a dense, rounded habit. It can grow up to 6 feet tall and 4 feet wide. The leaves are glossy and dark green, with a leathery texture. They are oblong or elliptic, measuring 1.5 to 3 inches long and 0.8 to 1.2 inches wide. The flowers are bright yellow, measuring 2 to 3 inches in diameter. They have five petals and numerous stamens. The fruit is a capsule that measures 0.2 inch in diameter, containing numerous small seeds.
Care Guide
Hypericum Henryi is a low-maintenance plant that is easy to grow. Here are some care tips:
- Water: Water regularly, especially during the first growing season. Keep the soil moist but not waterlogged.
- Fertilization: Fertilize in spring with a balanced, slow-release fertilizer.
- Soil: Plant in well-draining soil that is rich in organic matter.
- Sunlight: Plant in full sun to partial shade.
- Hardiness Zones: Hypericum Henryi is hardy in USDA zones 6 to 9.
Common Pests & Diseases
Hypericum Henryi is generally resistant to pests and diseases. However, it may be susceptible to the following:
- Aphids: These tiny insects suck sap from the leaves, causing them to curl and yellow. They can be controlled with insecticidal soap or neem oil.
- Spider Mites: These tiny arachnids feed on the leaves, causing them to become speckled and discolored. They can be controlled with insecticidal soap or neem oil.
- Crown Gall: This bacterial disease causes galls or tumors on the roots and stems. Infected plants should be removed and destroyed.
Habitat
Hypericum Henryi is native to China, where it grows in forest margins, stream banks, and shrublands. It prefers moist, well-draining soil and partial shade. It can tolerate a wide range of temperatures and is hardy in USDA zones 6 to 9.
Question and Answer
Q: Is Hypericum Henryi a deciduous or evergreen plant?
A: Hypericum Henryi is an evergreen plant.
Q: What is the hardiness zone for Hypericum Henryi?
A: Hypericum Henryi is hardy in USDA zones 6 to 9.
Q: Does Hypericum Henryi attract pollinators?
A: Yes, Hypericum Henryi is attractive to bees and butterflies.
Q: How often should I fertilize Hypericum Henryi?
A: Fertilize in spring with a balanced, slow-release fertilizer.
Related Plants
- Hypericum Androsaemum
- Hypericum Calycinum
- Hypericum Moserianum
- Hypericum Perforatum
References
- “Hypericum Henryi.” Missouri Botanical Garden, www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?kempercode=c278.
- “Hypericum Henryi.” Plant Finder, www.monrovia.com/plant-catalog/plants/1977/hypericum-henryi/.
- “Hypericum Henryi.” Royal Horticultural Society, www.rhs.org.uk/Plants/15212/Hypericum-Henryi/Details.
