Around March and April, the plants start to grow white flowers that develop into small, green berries. The tiny, green berries grow red and then a deep purple-blue as they ripen. Alternative names: Dewberryplant Information about how to growing requirements and tips for grow and care, best way to start to growplant, propagation method seeds or other option and... The trailing habit of growingdewberryplants attains a height of only about 2 feet (61 cm.) or so and has slender thorns upon red-haired stems. Growing as groundcover dewberries provide an appealing visual due to their spreading growth pattern but require vigilant management to prevent them from becoming invasive plants. DEWBERRYGROWING. By Geoege M. Daeeow, senior pomologist, Division of Fruit and Vegetable Crops and Diseases, Bureau of Plant Industry. There is also a Pennsylvania dewberry (Rubus pensilvanicus) which grows on the East coast, it’s more upright and bushy than Southern dewberryplants. Plant Family Rose (Rosaceae). Garden Location Upland. Prime Season Late Spring to Early Summer flowering. Dewberries are very low growing native perennial shrubs of the Rubus genus. The Northern Dewberry (Rubus flagellaris) is a perennial, low-growing, somewhat vining shrub or subshrub in the Rose or Rosaceae family. Dewberriesgrow in U.S. Dept. of Agriculture plant hardiness zones 6 through 9, while blackberries have a slightly wider range of zones 5 through 10. This means fire can easily damage the plant. However, it spreads quickly using underground stems called rhizomes. After a small or medium fire, dewberry can grow back fast. Dewberries are mostly found growing wild in USDA hardiness zones five through ten. These plants bear fruits that are edible when raw or baked. 1. Best Planting Time. When growingdewberries in nursery plant pots, timing is crucial. You should plantdewberriesplants at the right time. From planting to harvesting, this comprehensive guide will help you successfully cultivate these delicious and nutritious berries. Dewberries are a type of berry that resemble blackberries and raspberries. Learn how to growdewberries right in your garden!