Calycanthus is a plant that is native to eastern north america. it is a member of the family calycanthaceae, which contains only one other genus, calycanthus. the plant is also known as the sweet-scented, sweet-smelling, or spicebush. calycanthus has a long history of use by humans, both as an ornamental plant and for its medicinal properties.
Related plant:
Calycanthus Venus
Related plant:
Calycanthus Floridus
About soil condition, calycanthus like well-drained, rich loamy soil and prefer a location in full sun to partial shade. They are not particular about soil pH, but all prefer consistently moist, well-drained soils.
Like the other plants, calycanthus need sun to grow and produce flowers. They prefer full sun, but will tolerate partial sun. If you live in an area with hot summers, calycanthus will appreciate some afternoon shade.
The temperature condition of calycanthus is warm. The plant does best in temperatures that are between 55 and 60 degrees Fahrenheit. The plant can survive in colder temperatures, but it will not thrive. Calycanthus is not tolerant of heat, and it will not do well in temperatures that are over 70 degrees Fahrenheit.
Ideal humidity condition for this plant is around 60-70%. It can tolerate lower humidity but not for prolonged periods. If the humidity drops below 50%, the leaves will start to dry out and eventually drop off.
Regarding fertilizer, this plant does best with a moderate amount. too much fertilizer will result in lots of foliage growth but few flowers. a light fertilizer in early spring is all that is necessary. as for the roots, they are best left undisturbed. transplanting calycanthus is difficult and often results in plant death.
Pruning is an important aspect of caring for a calycanthus plant. This plant can become quite leggy and overgrown if it is not pruned regularly. When pruning, focus on removing any dead or dying branches. You can also trim back any wayward or overgrown branches.
Propagation of calycanthus is through softwood or hardwood cuttings taken from new growth in late spring or early summer. The cuttings should be 4-6 inches long and taken from the tips of the stems. Cuttings should be taken from healthy, disease-free plants. Place the cuttings in a perlite and peat moss mixture and keep moist. Cuttings will root in 4-6 weeks.
Usually, the plant growth rate well in average, moist to dry, well-drained soils in full sun to part shade. Prefers a deep, rich loam, but will tolerate a wide range of soils. Tolerates light shade, but best flowering and fragrance occur in full sun. Soil must be well-drained. Plants will not tolerate wet soils. Site in locations protected from strong winds.
Common problems for this kind of plant are canker, powdery mildew, and Verticillium wilt. Canker is a disease that causes the bark of the tree to crack and ooze. Powdery mildew is a fungus that causes the leaves to become covered in a white powder. Verticillium wilt is a disease that causes the leaves to turn yellow and fall off.
Source:
Calycanthus floridus: Carolina Allspice - Clemson University
2. CALYCANTHUS Linnaeus, Syst. Nat., ed. 10, 2: 1053, 1066,
Species: Calycanthus ?oridus - Cornell University