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Description
Hypericum Prolificum, commonly known as St. John’s Wort, is a deciduous shrub that belongs to the Hypericaceae family. It is native to eastern North America and can grow up to 6 feet tall and 4 feet wide. The plant is known for its bright yellow flowers and can bloom from mid-summer to early fall.
Taxonomic Information
| Domain | Eukaryota |
| Kingdom | Plantae |
| Phylum | Spermatophyta |
| Class | Magnoliopsida |
| Order | Malpighiales |
| Family | Hypericaceae |
| Genus | Hypericum |
Appearance
The leaves of Hypericum Prolificum are ovate, opposite, and can range from 1 to 3 inches in length. The plant’s bark is gray and smooth, and it has multiple stems that can grow in a rounded shape. The bright yellow flowers have five petals and can be up to 2 inches across. The fruit of the plant is a brownish-red capsule that contains numerous small seeds.
Care Guide
Hypericum Prolificum is a low-maintenance plant that can thrive in a variety of soil types. It prefers well-drained soil and full to partial sun exposure. The plant should be watered regularly, especially during hot and dry weather. It is also important to fertilize the plant once a year in the spring with a balanced fertilizer. The plant is hardy in USDA zones 5-9.
Common Pests and Diseases
Hypericum Prolificum is generally resistant to pests and diseases. However, it can be susceptible to leaf spot and powdery mildew if grown in humid conditions. Spider mites can also be a problem if the plant is stressed or growing in dry conditions.
Habitat
Hypericum Prolificum is commonly found in open woods, thickets, and along roadsides. It prefers moist to dry soils and can grow in both acidic and alkaline conditions. The plant is native to eastern North America, from Maine to Florida, and west to Minnesota and Texas.
Question and Answer
Q: Is Hypericum Prolificum toxic to humans or pets?
A: The plant is not toxic, but it is not recommended for consumption.
Q: How often should I prune my Hypericum Prolificum?
A: Pruning can be done in the spring or fall. It is recommended to remove dead or damaged branches and to shape the plant as desired.
Q: Can Hypericum Prolificum be grown in containers?
A: Yes, the plant can be grown in containers as long as it has enough room to grow and receives adequate sunlight and water.
Q: How long does it take for Hypericum Prolificum to bloom?
A: The plant typically blooms from mid-summer to early fall.
Related Plants
- Hypericum Calycinum
- Hypericum Kalmianum
- Hypericum Androsaemum
- Hypericum Perforatum
References
- “Hypericum Prolificum.” Missouri Botanical Garden, www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?kempercode=c550.
- “Hypericum Prolificum.” North Carolina State University Extension, content.ces.ncsu.edu/hypericum-prolificum.
- “Hypericum Prolificum St. John’s Wort, Shrubby St. John’s Wort.” Illinois Wildflowers, www.illinoiswildflowers.info/trees/plants/st_johnwort.htm.
