Marine Bells are part of the Browallia speciosa 'Bell' series of trailing plants with blue, purple or white flowers. The dainty deep indigo blue flowers appear from spring to fall. The plants grow 10 to 12 inches tall, and 12 to 14 inches wide. The vigorous annual plants are easy to grow.
The trailing form of Marine Bells is perfect for hanging baskets and other containers, as well as flower borders. The flowers attract hummingbirds and butterflies. Marine Bells can be cut back, potted and moved inside for a houseplant before the first frost in fall.
Marine Bells grow best in rich, well-drained soil that remains evenly moist. They grow in partial shade to full shade, and need long days to bloom. They are hardy to 45 degrees.
Growing From Seed
Marine Bells can be sowed indoors eight to 10 weeks before the predicted date of the last frost. The seeds need light to germinate and should not be covered. They should be kept in a moderately warm place--between 70 and 75 degrees. The seeds will germinate in seven to 21 days.
Marine Bells should be pinched back regularly to encourage new growth for a bushy plant. The flowers are more deeply colored when the plants receive afternoon shade.
Marine Bells will wilt during periods of high temperatures and drought. Too much water or fertilizer will produce more foliage and fewer flowers.
- Cornell University Extension
- Horsford Gardens and Nursery
Marine Bell, Marine Bell Browallia, Marine Bell flowers
About this Author
Melody Lee worked as a newspaper reporter, copywriter and editor for 5 years. In addition, she has edited magazine articles and books. Lee holds a degree in landscape design and is a Florida master gardener. She has more than 25 years of gardening experience, which includes working at nurseries and greenhouses.