Foliage: About 4 inches long; alternate; deciduous
Height: About 15 feet
Spread: About 10 feet
Shape: Oval to somewhat rounded
Star magnolia is a small multi-stem tree that is known for its outstanding flower display in March (February in southern U.S. and April in northern U.S.). Flowers are about 3 to 4 inches in diameter and fragrant; outer sides of petals (actually called tepals; about 12 to 18 tepals) are white or blushed with pink while inner sides of tepals are white. There are numerous cultivars (more than 25) that vary in flower characteristics (color, size, tepal number, date of emergence, and fragrance), plant form, hardiness, and growth rate. Because this species flowers in late winter and early spring, flowers are vulnerable to low temperatures. In most years flowers (or flower buds) are damaged to some degree, ranging from slightly damaged to total destruction, by sub-freezing temperatures. undamaged, the flower show is magnificent.
Zone: 4 to 8
Light: Full sun to part shade
Moisture: Average Soil type: Average pH range: Acid
When flowers are Star magnolia cultivars are suitable wherever a small tree is appropriate in a landscape. However, one should realize that the primary showy feature, the superb flower display, will only be realized about one in every four years since low temperatures damage flowers.
Star magnolia is relatively carefree but will require irrigation during periods of drought.
Star magnolia is similar to saucer magnolia (Magnolia ×soulangeana); however, star magnolia generally flowers before saucer magnolia and has a finer texture in flower, in leaf, and without leaves. There are pink-flowered star magnolia cultivars (more pink than the typical outer tepal pink blush) such as ‘Centennial Blush’, ‘Chrysanthemiflora’, ‘Jane Platt’, ‘Pink Stardust’, and ‘Waterlily’.
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October 5, 2018