If you are searching for the right flowering tree or shrub to add pizzazz to your landscape, check out these three groups of plants鈥magnolia, dogwood, and viburnum鈥攁nd you will not be disappointed.
I. Magnolia Trees
There are more than 100 species in the genus Magnolia, some native to North America and others from Asia. They are often thought of as a southern plant, but there are varieties for northern gardens, too! Indeed, there is a magnolia for most of the country, from the Northeast to Southern California. All of them need well-drained soil, rich in organic matter and a sunny location sheltered from harsh winds.
- Star Magnolias (Magnolia stellata), native to Japan, are the hardiest, surviving in Zones 4 to 9. Their fragrant white or pink blooms appear early in the spring before the leaves emerge. Each flower has 25-35 petals and each tree can have hundreds of them! Grow it as a 10-15 foot tall shrub or prune it to a single stem or two and shape it into a tree-form. Look for 鈥楥别苍迟别苍苍颈补濒鈥 or 鈥楻oyal Star鈥.
Star magnolia blossoms cover the tree in early spring before the tree leafs out.
- 鈥楨濒颈锄补产别迟丑鈥 and 鈥Yellow Bird鈥 are hybrid magnolias that have yellow flowers鈥攔are in a magnolia. Developed at the Brooklyn Botanic Garden, they grow to be 20-40 feet tall and are hardy in Zones 5-8.
- Saucer Magnolias (M. x soulangeana) have large, fragrant, tulip-shaped flowers in white, pink, purple, or two-tone shades. Some cultivars are large shrubs, while others eventually become huge, spreading trees. The purple buds of 鈥楢濒别虫补苍诲谤颈苍补鈥 open to cup-shaped pink and white blossoms that are 6-10 inches across! It grows to be 20-30 feet tall and is hardy in Zones 5-8. 鈥楪别苍颈别鈥 is a reblooming saucer magnolia that has an early flush of deep purple flowers followed by new blossoms over the summer. A small shrub, it grows to be 15 feet tall and is hardy in Zones 5-9.
Saucer magnolia is sometimes called tulip tree for the shape of its blossoms.
- Southern Magnolia (M. grandiflora) is native to the southeastern US. They are impressive plants with glossy evergreen leaves and large, creamy-white flowers that have an intoxicating scent. Southern magnolias can grow to be quite large鈥80 feet tall and 40 feet wide鈥攕o give them plenty of room; otherwise, look for a compact cultivar like 鈥楲ittle Gem鈥. They can be grown in full sun or part shade and are hardy in Zones 6-10.
When planting any magnolia, be sure you are happy with its location. They have extensive root systems and don鈥檛 like to be moved.
II. Dogwood Trees
Dogwoods (of the genus Cornus) are another large group, with many different plants ranging from 6 foot tall multi-stemmed shrubs to 40 foot tall trees, cold hardy ones and those suited for growing in warmer locales鈥攁 dogwood for everyone!
- Cornelian Cherry (Cornus mas) Is an early bloomer that bears clusters of small, star-shaped yellow flowers before the forsythia blossom in the spring. It has tart but edible red berries that birds love. It grows up to 20 feet tall and has glossy green leaves that turn bright red in the fall. Hardy in Zones 4-8.
- Pagoda Dogwood (C. alternifolia) is a North American native that has spreading, tiered limbs which are covered with flat, white blossoms in the spring. These are followed by dark blue berries that birds find irresistible. The green leaves turn deep maroon-red in the fall and there are cultivars such as green and white 鈥楢谤驳别苍迟别补鈥 or green and yellow 鈥楪olden Shadows鈥. They are not fussy about light, growing well in full sun to full shade. They tend to grow wider than tall鈥攔eaching 25 feet high but spreading over 30 feet鈥攁nd are hardy in Zones 3-7.
Pagoda dogwood flowers profusely, even in shade.
- Kousa Dogwood (C. kousa) is one of the most popular blossoming trees for home landscapes. Native to Japan, it has pointy white flower bracts in early summer and red fruit from late summer into fall. The purple-red fall foliage and exfoliating bark give it four seasons of interest. For pink flowers, look to 鈥楽补迟辞尘颈鈥, which blossoms a little later than the white varieties. They grow 15-25 feet tall and are hardy in Zones 5-8.
The actual 鈥渇lower鈥 on a kousa dogwood is in the middle of the four white bracts.
- Flowering Dogwood (C. florida) is a native tree very similar to the kousa dogwood, with white or pink flower bracts in early spring, red fruits, crimson-purple foliage in fall, and textured bark. It grows well in partial shade and slightly acidic soil, growing 30 feet tall. Hardy in Zones 5-9.
III. Viburnum Shrubs
The versatile Viburnum also has loads of different plants to choose from, but before you make your purchase, one important thing to consider is the viburnum leaf beetle. Sadly, this critter has killed many a viburnum in the northeastern U.S. It seems to prefer natives and ones with soft leaves, so I will limit this list to two viburnums that Cornell University has found to be less appealing and naturally resistant to this destructive insect. If the beetle is not found in your area, feel free to branch out and try fragrant snowball, arrowwood, smooth witherod, and Bodnant viburnums.
- Koreanspice (Viburnum carlesii) has heavenly-scented, waxy white blossoms in mid-spring. It is a 4-6 foot tall shrub, grows in full sun to part shade, and is hardy in Zones 4-7. If space is an issue, look for dwarf 鈥楥辞尘辫补肠迟耻尘鈥, which grows only 3 feet tall.
If you could smell this Koreanspice blossom, you would swoon! It is delicious!
- Doublefile Viburnum (V. plicatum tomentosum) and its many hybrids have tiered branches that are covered with flat white blossoms in the spring. Leaves start out bronze-green in spring, mature to a dark green in summer, and turn wine red in fall. It grows wider than tall, topping out at around 10 feet high. Look for white-flowered 鈥楳补谤颈别蝉颈颈鈥 or 鈥楽ummer Snowflake鈥, or pink-flowered 鈥楶ink Beauty鈥. For small gardens, try dwarf 鈥榃补迟补苍补产别颈鈥 that grows 4-6 feet tall. Good for Zones 5-8.
The doublefile viburnum is an excellent landscape shrub.
Still not sure which shrub or tree is right for you? See my advice on best shrubs to plant.