The variety vulgare is grown for its seed and essential oil, obtained by steam distillation and known as bitter fennel oil. The sweet variety dulce (Foeniculum vulgare azoricum), commonly called ...

Plants that can serve multiple purposes are fantastic, and bronze fennel (Foeniculum vulgare duler ‘Rubrum’) is one such multi-tasker. This fennel has smoky-brown foliage with red undertones.