Fruit trees which require two different varieties for pollination should be planted within 50 to 100 feet of one another to insure good fruit set. Gooseberries are self-fruitful. Elderberries are essentially self-unfruitful. Plant two or more varieties to insure good fruit set. Grapes are self-fruitful.
Raspberries are self-fruitful.
Strawberries are self-fruitful. Home gardeners should keep these fruiting requirements in mind when browsing in garden centers or leafing through garden catalogs. 1994 issue, pp. Iowa State University , Ames, Iowa. This information subject to a usage policy .