- Species and varieties: Torenia fournieri, commonly known as the wishbone flower, is a species of flowering plant in the family Linderniaceae. It is native to Asia and is known for its vibrant, trumpet-shaped flowers. Varieties include 'Clown Mix', 'Kauai Series', and 'Summer Wave Series'.
- Hybrid or heirloom: Torenia fournieri seeds are available in both hybrid and heirloom varieties. Hybrid varieties are often bred for specific traits such as color and disease resistance, while heirloom varieties are open-pollinated and have been passed down through generations.
- Pruning and training: Torenia fournieri requires minimal pruning. Deadheading spent flowers can encourage continuous blooming. Pinching back the stems can promote bushier growth.
- Fertilization needs: Torenia fournieri benefits from regular fertilization. Use a balanced, water-soluble fertilizer every 2-4 weeks during the growing season. Avoid over-fertilizing, as this can lead to excessive foliage growth at the expense of flowers.
- Hardiness zones: Torenia fournieri is suitable for USDA hardiness zones 2-11. It is typically grown as an annual in most regions.
- Climate requirements: Torenia fournieri thrives in warm, humid climates. It prefers partial shade to full shade and requires well-drained, moist soil. It is sensitive to frost and should be planted after the last frost date in spring.