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PlantSnap
Plant Care
Whorled water-milfoil
(Myriophyllum verticillatum)
Also Known As
Whorled water-milfoil, Whorled watermilfoil, Whorled myriophyllum, Common myriophyllum, Water thyme
About This Plant
Myriophyllum verticillatum is a submerged aquatic plant species that is native to North America, Europe, and Asia. It has finely divided leaves that are arranged in whorls around the stem, and it produces small, inconspicuous flowers.
Plant Care Instructions
Outdoor Size Range
Up to 20 inches (50 cm) in height and 10 feet (3 meters) in spread
Light Requirements
Whorled watermilfoil requires full sun to partial shade. It can tolerate some shade but will not grow as vigorously.
Humidity Needs
N/A
Fertilizing Schedule
Whorled watermilfoil does not require fertilizer, but it can benefit from the addition of nutrients in the water.
Pruning Guidelines
Pruning is not necessary for Whorled watermilfoil, but it can be beneficial to remove any dead or damaged leaves or stems.
Common Pests and Diseases
Whorled watermilfoil is not known to be susceptible to any pests or diseases.
Indoor Size Range
N/A
Watering Schedule
As an aquatic plant, Whorled watermilfoil requires a constant supply of water. It can be grown in ponds, lakes, or aquariums. The water should be clean and free of pollutants.
Temperature Range
Whorled watermilfoil can grow in a wide range of temperatures, from 50°F (10°C) to 86°F (30°C).
Growing Season
Whorled watermilfoil can grow year-round in warm climates, but it will go dormant in colder temperatures.
Growing Difficulty Level
Whorled watermilfoil is an easy plant to grow as long as it has access to clean water and sufficient light. It can be invasive in some areas and should be monitored if grown in a natural body of water.
USDA Hardiness Zones
Whorled watermilfoil is not rated for USDA hardiness zones as it is an aquatic plant.
Did You Know?
Whorled watermilfoil is often used in aquariums and water gardens as a decorative plant. It is also known for its ability to oxygenate the water, making it a popular choice for natural swimming pools.
