Florida cranberry, also known as Jamaican roselle or hibiscus sabdariffa, is a popular tropical plant that can be easily grown in central Florida food forests. Here’s some information to help you get started.
Hardy varieties:
Hibiscus sabdariffa is commonly grown as an annual, but there are several hardy cultivars such as ‘Thai Red’, ‘Karkade’ and ‘Victoria Red’ that can withstand temperatures up to 25 degrees Fahrenheit.
Planting and Care:
Florida cranberries are warm-season plants that grow in well-drained, fertile soil with a pH range of 6.0 to 7.5. It prefers full sun but tolerates light shade. You can plant the seeds directly into the ground after the last frost or start indoors 4-6 weeks before the last expected frost. Seeds should be planted approximately 1/4 inch deep and 2 to 3 feet apart.
Water the plants regularly, but be careful not to overwater as this can cause root rot. Feed with a balanced organic fertilizer every few weeks. Regular pruning of plants keeps them healthy and encourages new growth to bush out.
Harvest:
The calyx, or fleshy red fruit, of Florida cranberries can be harvested when they are plump and fully grown. Teas, jams, and other delicacies are made from the calyx. Even a kool aid type drink for kids. Plants can bear fruit in as little as 6 to 8 weeks after planting. The outside petals of the calyx are eaten rather than the pulpy inside.
Propagation:
Florida cranberries are easy to propagate from seed. Simply collect the dried calyxes that have fallen from the plant and remove the seeds. Plant the seeds in well-drained soil and water them regularly until they germinate.
Diseases and Pests:
Florida cranberries can be susceptible to pests such as aphids, spider mites, and whiteflies. These pests can be treated with a solution of water and dish soap or with an organic insecticide. Plants can also be susceptible to fungal diseases such as powdery mildew and leaf spot.To prevent these diseases, ensure your plants have adequate air circulation and do not water their leaves directly too often.
Florida cranberries are easy-to-grow tropical plants that do well in central Florida food forests. With care and maintenance, you can get a bountiful harvest of delicious, nutritious calyx each year.