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Calycanthus (Spice Shrubs) & Sinocalycanthus (Sweet Shrubs)

Spice Shrubs, Allspice and Sweet Shrubs are closely related to Magnolia and have shiny deep-green foliage and magnificent maroon to dark-purplish (In Calycanthus) or white to pale rose (in Sinocalycanthus) flowers. The whole plant has a pleasant spicy fragrance. Excellent for a partially shaded place with leafy, humus-rich soil and sufficient moisture in summer. All make quite large, yellow fruit-capsules in late summer.
Sow from autumn to early spring in any rich, well drained soil on a peaty basis in a sunny position. Keep pots in a protected spot outside during winter. Seeds will germinate in late spring with rising temperatures.
All are USDA Climate Zone 6.
7 seeds per package.
Articles
Calycanthus fertilis (Eastern Spiceshrub)

Calycanthus fertilis (Eastern Spiceshrub)

3m, Eastern Spiceshrub is the easiest species of Calycanthus and native of north-eastern USA. Grayish green leaves with dense pubescence beneath. Has reddish brown flowers, which have a pleasant aromatic fragrance. For any leafy, well drained moist soil in a partially shaded spot. IV-V.
7 seeds per package.

Calycanthus floridus (Carolina Spice Shrub)

Calycanthus floridus (Carolina Spice Shrub)

4m, Carolina Spice Shrub is native of Virginia to Florida (USA), occurring in wet woods. Very dark red to maroon flowers above smaller leaves than the closely related Calycanthus fertilis. For any leafy, well drained soil in partial shade. IV-V.
7 seeds per package.

Calycanthus floridus var. laevigatus (Eastern Sweetshrub)

Calycanthus floridus var. laevigatus (Eastern Sweetshrub)

4m, Eastern Sweetshrub is native of south eastern USA, occurring in open spots in slightly wet woods. Has dark red to maroon flowers followed by round to ovoid fruits. For any humus rich, well drained soil in a partially shaded to sunny spot. IV-V.
7 seeds per package.

Calycanthus occidentalis (Western Spiceshrub)

Calycanthus occidentalis (Western Spiceshrub)

5m, Western Spiceshrub is the tallest and largest Calycanthus species and makes small, light maroon flowers above glossy, large foliage. A very rare species from south-western USA. For any rich, well drained, preferably slightly moist soil in partial shade. IV-V.
7 seeds per package.

Sinocalycanthus chinensis (Chinese Sweet Shrub)

Sinocalycanthus chinensis (Chinese Sweet Shrub)

2 (4)m, Chinese Sweet Shrub (recently renamed to Calycanthus sinensis) is a most ornamental deciduous woody shrub with quite large, perfectly white to pale rose flowers in early summer followed by yellow green seed pods and beautiful golden yellow foliage in autumn. For any humus rich, well drained soil in a sunny to partially shaded spot. VII-VIII.
7 seeds per package.