All this genus are natives of North America. They are very easy of culture, growing freely in peat or loam, or both, mixed. The flowers are dark-brown color, and very fragrant, resembling the odor of ripe melons. The wood is also very-fragrant.

Calycanthus florida. - Carolina Allspice. - This is a well-known species, from three to five feet high, flowering from June to August. There are also a number of other species, but, all nearly resemble the last, except in height and the style of the leaves. C.fertalis has glaucous leaves; C. Iaevigatus smooth leaves; both about three feet high; all easily propagated from suckers or layers.