Gourds, which are related to pumpkins and squash, are generally grown for their hard outer rind. The fruit is dried for fall decorations, handicrafts and functional items. The various types of gourds include hard-shell gourds (Lagenaria spp.; used for dippers, containers and birdhouses), soft-shell gourds (Cucurbita pepo; decorative and ornamental uses), and luffa gourds (their soft interior fiber is used like a sponge).