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Species: American Gooseberry (Ribes hirtellum), European Gooseberry (R. grossularia). Other common names include Gooseberry (English), Stachelbeere (German), Groseille a Maquereaux (French), Uva Spina (Italian), and Stekbes (Flemish)
Related Species: Currant (Ribes rubrum, R. petraeum, R. sativum), Black Currant (R. nigrum, R. ussuriense), Buffalo Currant (R. aureum).
Origin: Gooseberries are derived mostly from two species: the European gooseberry (Ribes grossularia), native to the Caucasus Mountains and North Africa; and the American gooseberry (R. hirtellum), native to northeastern and north-central United States and adjacent parts of Canada. So-called European cultivars are pure species, but virtually all so-call American cultivars also have European genes.
Adaptation: Gooseberries grow best in summer humid, cool regions with great winter chilling. In California they are fairly productive in the coolest parts of the San Francisco Bay Area, the outer Coast Ranges and coastal northern California. They are probably not worth trying in southern California. except at high elevations. With proper attention gooseberries can be grown in containers.
DESCRIPTION
Growth Habit: Gooseberries are deciduous shrubs, fast growing under optimum conditions to 3 feet tall and 6 feet wide. The plant is suitable for training as a standard. American types have weeping stems that will root wherever they touch the ground and can be invasive. Annual growth is in a single flush in spring. The roots are superficial, fine and easily damaged by frequent cultivation.
Foliage: The buds perk up early in the spring, dotting the stems with green when most other plants are still tawny. The leaves are alternate, single, deeply lobed, and glossy dark green (European types), or pale to gray-green and sometimes finely pubescent (American types). The stems are thin, becoming woody, with a large thorn at each axil. American gooseberry stems are densely bristly, with one or more additional thorns at each axil. Leaf size and number are reduced under heat or light stress, and are easily burned by intense sunlight. Plants that have been subject to drought may make a new growth flush after deep irrigation. If the roots are lost, regrowth will wait until the following spring.
Flowers: The inconspicuous flowers, green with pink flushed petals, open in early spring. They are borne laterally on one-year old wood and on short spurs of older wood. The flowers are self-fertile and pollinated by wind and insects, including bees. Each flower bud opens to yield from one to four flowers, depending on cultivar.
Fruit: The fruit, borne singly or in pairs at the axils, is a berry with many minute seeds at the center. A gooseberry may be green, white (gray-green), yellow, or shades of red from pink to purple to almost black. Fruits of the European gooseberry may be very large, like a small plum, but are usually 1 inch long, less in width. American gooseberry fruits are smaller (to 1/2 inch), perfectly round, all becoming pink to wine-red at maturity. Skin color is most intense in full sunlight. Berries generally drop when overripe. The fruit has a flavor all its own, the best dessert cultivars as luscious as the best apple, strawberry or grape.
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