Torenia Plant Information

Description

• The torenia is also known as the wishbone flower because of the shape of the stamens that come from the center of the trumpet-shaped flower. These structures remain joined together until the plant is mature and ready to reproduce, and then they come apart. The largest of the torenia flowers can be up to 2 inches across, and they come in colors ranging from purple and blue to white and yellow. In some areas -- where the climate is warm and wet enough -- these flowers can be grown as perennials. In most areas outside of their native range throughout Asia they are annuals and must be replaced every year. Leaves are deep green with a soft texture and jagged edges.

Growing Torenias

• Torenias do best when planted in warmth and moisture, so in cooler climates they will grow best when planted in full sun. In warmer climates, torenias can survive in partial shade, but homeowners will need to water them frequently. These flowers will bloom from June until they are killed by the first frost. Torenias are in constant bloom and require plenty of nutrients, which can be acquired from a basic fertilizer or organic mulch. When gardeners break off the tips of the leafy stems throughout the growing season, this will encourage the plant to grow in thicker instead of becoming spindly.

Uses

• The torenia is a versatile flower that can be used in multiple ways throughout the garden. Gardeners can easily train and shape torenias to spread low to the ground, where they can make an excellent choice for summer ground cover. Torenias bloom all summer long, bringing color to the garden for several months. They can also be used in hanging baskets, where the majority of the plant grows in a low mound while some long ends can be left to cascade over the edge of the basket. These annuals also thrive in well-drained soils, so they can do well in flower boxes or as part of container gardens.

Potential Problems

• Plants can become leggy if not pinched back and planted in soil with sufficient nutrients. They are highly resistant to insect problems, and can be an excellent choice in areas plagued by pest problems. Most of the issues associated with the torenias occur when they are planted in soil that does not have adequate drainage. If the plants sit in standing water for too long or too frequently, they can fall victim to root rot. Perpetually wet flowers can also develop mildew problems.