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PlantSnap
Plant Care
White ruellia
(Ruellia lactea)
Also Known As
White ruellia, Milkweed ruellia, Ruellia
About This Plant
Ruellia lactea is a species of flowering plant in the Acanthaceae family. It is native to Mexico and Central America. The plant produces white flowers that bloom in the summer and fall. It is a popular choice for gardeners due to its attractive flowers and ease of care.
Plant Care Instructions
Outdoor Size Range
24-36 inches (60-90 cm)
Light Requirements
Ruellia lactea prefers bright, indirect light. It can tolerate some shade, but too much shade can cause the plant to become leggy and produce fewer flowers.
Humidity Needs
Ruellia lactea prefers moderate to high humidity levels. If the air is too dry, mist the plant regularly or place a humidifier nearby.
Fertilizing Schedule
Fertilize the plant once a month during the growing season with a balanced, water-soluble fertilizer. Avoid fertilizing during the winter months.
Pruning Guidelines
Prune the plant in the spring to encourage bushier growth and more flowers. Cut back any leggy or overgrown stems to promote new growth.
Common Pests and Diseases
Ruellia lactea is relatively pest-free, but it can be susceptible to spider mites and mealybugs. Treat any infestations with insecticidal soap or neem oil.
Indoor Size Range
12-24 inches (30-60 cm)
Watering Schedule
Water the plant when the top inch of soil feels dry to the touch. Avoid overwatering, as this can cause root rot.
Temperature Range
The plant prefers temperatures between 60-80°F (15-27°C). It can tolerate temperatures as low as 50°F (10°C), but avoid exposing it to temperatures below 40°F (4°C).
Growing Season
Ruellia lactea grows best during the spring and summer months.
Growing Difficulty Level
Ruellia lactea is an easy plant to grow and care for, making it a great choice for beginners.
USDA Hardiness Zones
Ruellia lactea is hardy in USDA zones 9-11.
Did You Know?
In addition to its attractive flowers, Ruellia lactea is also known for its ability to attract butterflies and hummingbirds to the garden.
