| Plant Habit: | Shrub |
| Life cycle: | Perennial |
| Sun Requirements: | Full Sun Full Sun to Partial Shade Partial or Dappled Shade |
| Water Preferences: | Mesic |
| Minimum cold hardiness: | Zone 6a -23.3 °C (-10 °F) to -20.6 °C (-5 °F) |
| Maximum recommended zone: | Zone 9b |
| Plant Height: | 3 to 9 feet |
| Plant Spread: | 6 to 12 feet |
| Leaves: | Good fall color Deciduous Fragrant Other: leaves turn yellow in fall |
| Flowers: | Showy Fragrant Blooms on new wood Other: Try to purchase sweetshrub when in bloom to find one with fragrance. There is variation in the amount and nature of the perfume. The flowers also seem to become more fragrant as they age. |
| Flower Color: | Other: Maroon |
| Bloom Size: | 1"-2" |
| Flower Time: | Spring Late spring or early summer Summer Late summer or early fall |
| Uses: | Windbreak or Hedge Cut Flower Dried Flower Will Naturalize |
| Wildlife Attractant: | Bees Birds Butterflies |
| Resistances: | Deer Resistant Humidity tolerant |
| Toxicity: | Other: Ruminants are reported to have a toxic reaction from grazing this plant. Calycanthus contains calycanthine, an alkaloid similar to strychnine, and it is toxic to humans and livestock if consumed in large quantities. |
| Propagation: Seeds: | Sow in situ Other info: Seed needs to be fresh. Plant right away or stratify for 60 days before planting. |
| Propagation: Other methods: | Cuttings: Stem Layering Division Stolons and runners |
| Pollinators: | Various insects |
| Containers: | Suitable in 3 gallon or larger Needs repotting every 2 to 3 years Needs excellent drainage in pots |
| Awards and Recognitions: | Other: UC Davis Arboretum All Star |
