Weeping begonias offer a captivating display with their unique cascading growth habit. They are a popular choice for hanging baskets and containers, where their stems gracefully trail downwards, adding vibrant color and visual interest to gardens and indoor spaces.
What is a Weeping Begonia
Weeping begonias (Begonia tuberhybrida pendula) belong to the Begoniaceae family. Originating from the tropics of South America, they are distinguished by their trailing or cascading stems, making them ideal for creating a flowing visual effect with their showy blooms.
Their flowers come in various forms, including single or double blooms, and a wide array of colors such as pink, red, white, orange, and yellow. Some cultivars feature ruffled or serrated petals, while others exhibit bicolor patterns or picotee edges. The cascading flowers and foliage create lush, overflowing displays in containers.
Weeping Begonia Care Essentials
Light
Weeping begonias thrive in bright, indirect light. Morning sun and afternoon shade are ideal, as intense afternoon sun can scorch their delicate leaves. Too much direct sunlight leads to crispy leaves, while insufficient light results in leggy growth and fewer blooms.
Water
Consistent moisture is important for weeping begonias, but avoid overwatering to prevent root rot. The soil should remain evenly moist, never soggy. Allow the top inch of soil to dry slightly before watering again. Watering at the base of the plant helps prevent fungal issues on the foliage.
Soil
Weeping begonias prefer well-draining, rich soil with adequate organic matter. A slightly acidic pH, typically around 5.5 to 6.0, is suitable for their growth. For container planting, use a potting mix formulated for acid-loving plants or a combination of potting mix, leaf mold, and coarse sand that promotes proper drainage and moisture retention, as tubers can rot in overly wet conditions.
Temperature and Humidity
These plants flourish in warm, humid environments, reflecting their tropical origins. Ideal temperatures range between 65°F and 75°F (18°C and 24°C). Protect them from cold, as they are frost-tender. Humidity can be increased using a pebble tray or humidifier.
Fertilizer
Weeping begonias benefit from regular fertilization during their active growing season, from spring through summer. Apply a balanced liquid fertilizer, such as a 10-10-10 or 15-30-15 N-P-K ratio, every two to four weeks to promote healthy growth and abundant blooms. Dilute water-soluble fertilizers to half-strength for container-grown plants to prevent fertilizer burn. Reduce fertilizing in the fall and stop completely during winter dormancy.
Planting and Growing Weeping Begonias
When planting weeping begonias, choose containers that allow their trailing stems to cascade, such as hanging baskets or window boxes. Plant tubers with the hollow side facing upwards, just at or slightly below the soil surface. Ensure adequate drainage holes in the chosen container.
Planting can occur in spring after the last frost, as begonias do not thrive in cold soil. Space tubers approximately 6 to 9 inches apart, or closer in hanging baskets for a fuller display. Provide bright, indirect light immediately after planting.
Overwintering Weeping Begonias
Weeping begonias are not frost-hardy and require overwintering in colder climates. As fall approaches and leaves yellow, reduce watering to prepare the plant for dormancy. After the first frost, or when temperatures consistently drop below 45°F (7°C), dig up the tubers.
Remove stems and leaves, then clean off any loose soil. Allow tubers to air dry for several days to a week in a frost-free area. Once dry, store them in a cool, dark, and dry location, ideally between 45°F and 50°F (7°C and 10°C), packed in peat moss, sawdust, or vermiculite to prevent drying out. Replant dormant tubers in spring.
Common Problems and Solutions
Yellowing leaves often indicate overwatering or insufficient light, as soggy soil prevents proper oxygen uptake by roots. If the soil is consistently wet, allow it to dry out more between waterings and ensure adequate drainage. For low light, move the plant to a brighter, indirect light location.
Powdery mildew, a fungal issue, appears as white splotches on leaves, especially in humid conditions with poor air circulation. Improve air circulation and remove infected foliage. Spider mites can cause yellow stippling; dislodge them with a strong water spray or apply insecticidal soap/neem oil for persistent infestations.