How Do You Grow Thunbergia?
Most commonly referred to as “Black-eyed Susan Vine,” Thunbergia is an annual flower with black centers surrounded by brightly colored petals. It grows as a vine and is perfect for climbing up trellises or used in hanging baskets and window boxes. Thunbergia is easy to grow and will bloom throughout the summer. Fill a seed tray about 3/4 full of potting soil. A mixture of potting soil and vermiculite may be used, but regular potting soil works fine. Mist the soil to dampen. Use a tray with drain holes in the bottom for good drainage. Place the seeds about 1 to 2 inches apart on top of the soil. Do not push down into the soil. Cover lightly with soil; do not pack down. Mist the seeds, being careful not to disturb them. Using a spray bottle makes it easy to keep the soil damp without the seeds being disturbed. Place the tray in bright light either in front of a window or under grow lights. Germination takes 7 to 21 days. Set the tray outside in a sunny or partially shady location after 3
