They are best adapted to USDA Hardiness Zones 3 through 5, although in California they are fairly productive in the coolest parts of the San Francisco Bay Area and coastal northern California. They should be considered experimental only in southern California. Currants are amendable to container culture. All forms of currant are deciduous shrubs, fast growing under optimum conditions. The plant is a multiple-stemmed clump, to 5 feet high and as broad, but is suitable for training as a standard.
Annual growth is in a single flush in spring.
The roots are superficial, fine and easily damaged by frequent cultivation. The leaves are alternate, single, lobed and maple-like. Black currant leaves are pale green, while those of the red currant are deep blue-green. Both are easily burned by intense sunlight. Leaf size and number is reduced under water stress.