To 25-40 feet tall. The developing flower bud is dried and used as the spice. Cloves are used whole for studding ham and pork, in pickles, and in hot spiced drinks. Ground clove is used in many baked sweets. The trees and leaves are very fragrant. The clove, believed to be a native of Indonesia, is a beautiful and graceful tree, with stellar pink and yellow new leaves all year round. Cloves are slow-growing trees that do best on deep volcanic soils with abundant rainfall and good drainage.