Hypericum tetrapetalum, the fourpetal St. Johnswort, is a species of flowering plant in the St. John's wort family, Hypericaceae. It is found in the Southeastern United States and Cuba. It was first described by Jean-Baptiste Lamarck in 1797.
Fourpetal St. John's wort has strong resistance to disease and is typically not susceptible to illnesses. In terms of care, this plant is fairly easy to maintain. When grown outdoors it needs little watering, and mature plants usually do not require pruning. However, smaller specimens ought to be trimmed after they have finished blooming. Fourpetal St. John's wortt is suitable for anyone with an outdoor area, such as a garden or deck, and does not demand extensive care experience.
How to keep Hypericum Tetrapetalum.
Light
Fourpetal St. John's wort comes from open habitats, such as sunny meadows and forest edges, which supply plenty of light. It thrives in Full Sun but can also tolerate Partial Sun, adjusting well to different sunlight conditions.
Water
Fourpetal St. John's wort is drought-tolerant but cannot survive in waterlogged conditions. During the first year, it needs about 25 mm (1 inch) of water each week. In the following years, it usually relies on natural rainfall. Be careful not to over-water, as this can cause root rot and wilting leaves.
Temperature
Fourpetal St. John's wort adapts well to temperature, tolerating higher heat and wide temperature fluctuations. In hot weather, care should be taken with watering and by providing appropriate shade to prevent sunburn. However, it is less tolerant of low temperatures. While it can endure some cold, excessively low temperatures can cause frost damage.
Fertilizer
Proper timing is essential for fertilizing Fourpetal St. John's wort. Start fertilizing in early spring and continue monthly until early summer. Fertilizer promotes attractive blooms and supplies energy during both dormant periods and active growth.
Pruning
Fourpetal St. John's Wort is a hardy flowering shrub known for its vibrant yellow blossoms. To encourage healthy growth and abundant flowering, prune the plant in early spring. Start by removing any dead branches, and then cut back about one-third of the previous year's growth. Regular pruning helps improve air circulation, maintain the shrub's shape, and promote overall plant health, ensuring a vigorous and thriving shrub.
Botanical profile.
- Plant Type
- Shrub
- Life Cycle
- Perennial
- Genus
- Hypericum
- Family
- Hypericaceae
- Hardiness Zone
- 8-11
- Mature Height
- 30 cm to 61 cm
- Mature Spread
- 30 cm to 46 cm
- Leaf Color
- Dark Green
- Leaf Type
- Evergreen
- Flower Color
- Yellow
- Flower Size
- 2.03 cm to 3.05 cm
- Bloom Time
- Summer, Early fall
- Planting Time
- Spring, Summer, Autumn
- Harvest Time
- Late summer, Fall
- Native Area
- Cuba
Other names.
Reader questions.
What are the sunlight requirements for Fourpetal St. John's wort?
Fourpetal St. John's wort (Hypericum tetrapetalum) requires specific sunlight conditions to thrive. It needs full sun, meaning it should receive above 6 hours of sunlight daily, or partial sun, which equates to about 3-6 hours of sunlight per day. It's important to observe the sunlight's movement through your garden to find the ideal locations that offer a perfect balance of light and shade, ensuring your plants' health and happiness.
