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PlantSnap
Plant Care
Yellow saint john's wort
(Hypericum revolutum)
Also Known As
Yellow saint john's wort, Rolled st. john's wort, Revolute st. john's wort
About This Plant
Hypericum revolutum is a flowering plant species with bright yellow flowers that bloom in the summer. It is native to the western United States, specifically California and Oregon. The plant has a shrubby growth habit, with woody stems and oval leaves that are dark green in color.
Plant Care Instructions
Outdoor Size Range
2-4 feet (60-120 cm)
Light Requirements
Hypericum revolutum prefers full sun to partial shade. It can tolerate some shade but will not flower as well in low light conditions.
Humidity Needs
Hypericum revolutum does not have any specific humidity requirements and can tolerate a range of humidity levels.
Fertilizing Schedule
Hypericum revolutum does not require fertilizer but can benefit from a balanced, slow-release fertilizer in the spring.
Pruning Guidelines
The plant can be pruned in the early spring to remove any dead or damaged wood. It can also be pruned after flowering to maintain its shape.
Common Pests and Diseases
Hypericum revolutum is relatively pest-free but can be susceptible to spider mites and aphids.
Indoor Size Range
12-24 inches (30-60 cm)
Watering Schedule
The plant prefers well-drained soil and moderate watering. It can tolerate some drought but should be watered regularly during the growing season.
Temperature Range
The plant is hardy in USDA zones 7-10 and can tolerate a range of temperatures from 20-100°F (-6 to 38°C).
Growing Season
Hypericum revolutum blooms in the summer and grows actively during the spring and summer months.
Growing Difficulty Level
Hypericum revolutum is relatively easy to grow and can tolerate a range of growing conditions.
USDA Hardiness Zones
USDA hardiness zones 7-10
Did You Know?
Hypericum revolutum has been used in traditional medicine to treat a range of ailments, including depression and anxiety.
