Black raspberries are not as winter hardy as red raspberries and are also highly susceptible to foliar and cane diseases as well as viruses. Bristol is not only one of the hardiest black raspberries, but it is also vigorous-growing and highly productive. Allen' plants are productive and vigorous. The berries are large, attractive, and of good quality. This variety is slightly earlier than Bristol.
Purple raspberries are hybrids of red and black raspberries.
Some of them sucker like the red raspberries while others root at the tips of the canes like the black raspberries. The fruit is purplish and of good quality. Royalty' is a new purple raspberry with delicious flavor, very large fruit, and high productivity. Sodus' has vigorous, upright plants that are very productive and hardy. Brandy wine' is a high quality purple raspberry.