Tropical Bushes That Withstand Deep Frost

Unusual Magnolias

• Not all magnolias grow into 40-foot trees. Rutgers gardens feature a number of robust magnolias that are unique and able to thrive in the mid-Atlantic area. The Siebold Magnolia (Magnolia sieboldii) has a shrubby form that grows no higher than 15 feet. The fragrant white flowers have a touch of pink and a burgundy center. Northern Belle (Magnolia virginiana) is the hardiest of the species and has large, creamy flowers that bloom in June and July.

Enchanting Native Sweetshrubs

• Sweetshrubs are glossy green foliage that are not only attractive, but also deer resistant. The June flowering plant has flowers that carry fragrances reminiscent of apples and strawberries. Heritage Wine, a type that stays in bloom through August, produces large burgundy flowers. The Michael Lindsay variety has a strong fragrance and large reddish flowers. The Venus variety has 5- inch white blooms. Many hardy magnolias produce golden fall color, adding another season of interest to their repertoire.

Camellias

• There are at least three varieties of camellia that are cold hardy right up through USDA planting zone 6. Lu Shan Snow, a tea-oil camellia (C. oleifera) produces flowers as late as October and November. It displays cinnamon-colored bark as the plant ages. Red Leaf (C. sinensis) has been the source for tea leaves in China for centuries. It has a more compact form than other camellias, and the red pigment in the leaves and flowers makes it a striking addition to a shade garden. April Bush camellia has light pink blossoms that bloom in spring. With a little winter mulching, these grow well in chillier climates.

Honorable Mentions

• Enkianthus campanulatus has two types, Princeton Red Bells and Showy Lantern that bloom red bell-shaped flowers in May. These plants prefer woodland settings, although they tolerate more sun if the soil is rich in humus and evenly moist. Florida anise (Illicium floridanum), also known as Halley’s Comet, has been growing successfully in Rutgers Gardens for 5 years. It is grown in deep shade, which gives it some winter protection. It is another May bloomer and has attractive red star-shaped flowers. Hardy Banana (Musa basjoo) deserves a mention because of its lush tropical foliage, which adds texture and a tropical feel to any garden setting. Hardy Banana requires mulching for winter protection.