The shrub grows slowly, with a height of 2½ to 3 feet tall and a spread of 3 to 3½ feet. Plant care. Mulching a plant with a 2- to 3-inch layer of organic mulch can help retain soil moisture and suppress weeds. If you want zone 4 azalea bushes that stand six to eight feet tall, take a look at Northern Lights F1 hybrid seedlings. Some azaleas are deciduous plants, losing their leaves during winter and re-growing new foliage each spring. This azalea is very particular about its planting site and must have soil that’s rich, acidic, evenly moist, and well-draining. These are cold hardy Azaleas that will grow in USDA Planting Zone 4. where temperatures drop to as low as 30 below 0 F. These floriferous beauties are used extensively in landscape design as colorful accents or specimens, natural hedges and buffers, or in groupings in landscape borders and home foundation plantings. Small stature, great form and extremely heavy blooming makes this an ideal bonsai candidate. It also benefits from mulch around its base to keep the roots cool and the soil moist. Witch Hazel. Azaleas from the Encore series, such as 'Encore Autumn Amethyst' with its magenta flowers, produce blooms on new growth periodically throughout the growing season, not just in the spring like most azaleas. VARIETY NAME: SIZES: ZONE: WxH: Girard’s Fuchsia (Girard) #1, #2 ,#3: 5: 2.5’x3′ Mid-Season. These plants have fibrous roots that won't always spread out on their own. And keep the roots cool and moist with a layer of mulch. Some types of azaleas are evergreen, keeping their leaves throughout the winter. Azaleas thrive in organically rich soil that drains at a modest rate. Azalea Society of America: Growing Azaleas, Clemson Cooperative Extension: Changing the pH of Your Soil, Missouri Botanical Garden: Rhododendron "Delaware Valley White", Missouri Botanical Garden: Rhododendron Yedoense Var. Plus, the shrub’s dark green foliage turns an orange-red in the fall. Learn tips for creating your most beautiful (and bountiful) garden ever. Coastal azalea is also called the dwarf azalea, and grows in the wild and in gardens in USDA zones 5 through 9A. The Exbury azalea hybrids like 'Fireball' are good plants for beginners. It grows to 4 feet and bears deep purple-pink flowers. Most are upright to rounded in habit reaching 3 to 4 feet high. Growing between 3 and 6 feet, Golden Lights is a shrub for partial or full shade, making it suitable for along foundations or in woodland gardens. If you need to prune to shape the plant or remove dead portions, do so right after it’s done flowering. A perfect choice for smaller gardens and urban spaces. Choose from 31 multiseason blooming azalea varieties that love sun or part shade. Plant it in a location that’s sheltered from winds, and consider using mulch around its base to maintain soil moisture. Missouri Botanical Garden, Growing Azaleas and Rhododendrons. pooukhanense) is one example, growing 3 to 6 feet tall and covering itself with pink-to-purple flowers from April to May. Although many types of azaleas exist, each type needs only basic care to thrive, but grows best within a particular range of high and low temperatures. cover themselves in brightly colored flowers. Many of these hybrids were the result of crossing the very hardy American species, R. prinophyllum and … Evergreen shrub. Blooming before the leaves emerge in mid to late spring, its funnel-shaped, white flowers, up to 1.5 in. ‘Rosy Lights’ is an azalea that offers extra cold hardiness. Foliage turns red in winter. Here are 10 popular types of azaleas to grow in the garden. Like other hybrids in the Girard series, ‘Hot Shot’ is a low-growing azalea that works well when planted in the middle of a border. With thousands of varieties, there are azaleas for just about every landscape situation: Deciduous varieties are considered the hardiest, many growing as far north as Zone 4. This azalea hybrid produces trumpet-shaped clusters of white blooms in the spring that pop against a backdrop of green leaves. It grows in zones 5 through 9 and is quite large, up to 15 feet tall, with pink flowers. Most of the Northern Lights azaleas are hardy to -30 F or -34 C, allowing them to be successfully grown in USDA zone 4, with some even being successful in USDA zone 3. The Rhododendron genus comprises both azalea and rhododendron species. When planting azaleas, cut an X across the bottom of the root ball and very gently loosen the roots. The world's best-selling reblooming azalea, Encore Azaleas bloom in spring, summer and fall. Azaleas prefer acidic soil with a pH between 4.5 and 6.0. Just make sure your soil stays moist, fertile, and acidic for it to grow to its fullest potential. It grows in USDA zones 4 through 9. The Korean azalea is a naturally occuring species shrub rather than a nursery hybrid. Azaleas For Zone 6; Azaleas For Zone 6. poukhanense), 29 Shrubs That Grow in Full or Partial Shade, 14 Floribunda Roses for Your Flower Garden, 16 Eye-Catching Varieties of Hardy Geranium, 14 Varieties of Beautiful Anemone Flowers. Azalea The azalea is a woody plant in the genus Rhododendron with delicate blooms that are often a shade of pink. In mid to late spring, it bears abundant clusters of 3 to 4 large, open, funnel-shaped, rich reddish-purple flowers, up to 2 in. Plant it in a location that gets at least four hours of sun per day and has some protection from strong winds. This hardy shrub will grace your garden with bright pink spring flowers, white-edged summer foliage, and red leaves in the fall. However, a deep watering once weekly during periods of drought will encourage better growth and blooms. They bloom in spring, summer and fall. In zone 3a, this cultivar can grow well with proper care and a sheltered siting. However, water your plant consistently to prevent the roots from drying out.. The cold-hardy hi-lights hybrids were created by crossing very hardy American species, R. prinophyllum and R. canadense, with Exbury-type azaleas. It works well as a foundation or border planting, providing early spring color. Azalea care is a bit more involved than most. These plants are generally quite cold-hardy and grow in U.S. Department of Agriculture plant hardiness zones 5 through 8. Give it a sheltered position away from wind and low-lying troughs that can freeze, which can kill the plant's buds. Like most azaleas, they are sensitive to extreme heat and prefer areas where summer temperatures don't exceed 86 degrees Fahrenheit for long periods. Moreover, fertilizing your shrub after it blooms can help to promote more vigorous growth. Every one of the cold hardy azaleas in this series will survive down to temperatures of -45 degrees F. (-42 C.). Azaleas 3-5' Mature Height. University of Missouri Extension. Water deeply twice weekly for 2 to 3 months after planting. All azaleas do well in light shade, especially when provided by tall trees that provide variable shading during the day. Slightly fragrant and exceptionally cold hardy, Rhododendron 'Karens' is a very eye-catching, dense and compact, semi-evergreen Azalea. Her work has appeared in health, medical and scientific publications such as Endocrinology and Journal of Cell Biology. The shrub grows 3 to 6 feet tall and wide and pinkish-white, fragrant flowers appear in mid-spring. This variety has a moderate growth rate but typically needs little pruning. Repeat Blooming Azaleas. Spring has definitely arrived when azalea bushes (Rhododendron spp.) Unless you get a lot of rain, plan on watering at least weekly to ensure adequate soil moisture. Produces a full head of medium sized delicate light pink flowers in early spring. The Korean azalea (Rhododendron yedoense var. Depending on its starting level, you can raise or lower soil's pH by adding ground limestone or sulfur, respectively. The Azalea is essential of the Japanese tea garden as a symbol of spring, and is found in gardens throughout Asia. Most native azaleas grow best in the southeastern or southern Midwest, but three species do well in USDA Zones 4 and 5 in the northern U.S. states and Canada where winter temperatures drop as low as -20 degrees Fahrenheit. Introducing "One Thing": A New Video Series. Like rhododendrons, azaleas prefer an acidic soil, with a pH of 4.5 to 6.0. Depending on variety, a dwarf azalea can be kept 2 to 3 feet tall. Because it blooms before the foliage has fully emerged, you get a showy display of rose-colored, fragrant flowers in the early spring. The Florida azalea (Rhododendron austrinum) is less cold-hardy than the Korean variety, growing in zones 6 through 9, but has unusually colored, yellow, peach or orange-red flowers on a 6- to 10-foot-tall bush. "Girard's Rose" is a shorter, 2-foot-tall, evergreen bush with deep rose-pink flowers. Full sun for the entire day may scorch their leaves. In many parts of the United States, especially the Southeast, it just wouldn’t be springtime without flowering azalea shrubs (Rhododendron spp.). Midseason. Growing Azalea in Wisconsin zone 3/4. A partially shady location with acidic soil will keep this evergreen shrub happy for many years. She has also published in hobbyist offerings such as The Hobstarand The Bagpiper. You should reserve a place of honor for this azalea with vivid red blooms in your landscape. Examples of this type of azalea include the cultivar "Delaware Valley White," with pure white flowers on a 3- to 4-foot-tall bush, and "Hino-Crimson," which has showy red flowers on a 2- to 4-foot tall shrub. Popular for container gardens, especially as bonsai. It prefers evenly moist soil enriched with composted leaves or manure to increase acidity.. If it holds water for a long time, add sand at planting to improve its drainage. It is cold hardy between USDA zones 3 through 7, as opposed to My Mary, a cultivar for zones 5 through 8. Zones 5 to 8. The Autumn fire azalea blooms from spring through fall and has a mature height and width of fewer than 3 feet tall. wide (5 cm), elegantly darker freckled. Because azaleas have been selectively bred for centuries, there are thousands of cultivars, derived from hundreds of species found throughout the Northern Hemisphere. These showy flowers are excellent at attracting pollinators. The upright growth habit of 'Fireball' will ensure that its showy red blossoms won’t get lost among your other spring flowers. These plants tend to be more tolerant of sustained hot temperatures and do better in warmer climates than the evergreen types. The two classes of flowering shrubs are very similar, with the technical differences found in the structure of the flowers. Some, such as the bright-pink roseshell azalea (Rhododendron prinophyllum), are even hardy in Zone 3. Azaleas generally prefer rich, acidic soil. The mountain azalea, also called the Piedmont azalea (Rhododendron canescens), is another deciduous plant. The ruffled rust-colored blooms of 'Mandarin Lights' will positively glow in the dappled shade of your landscape. Azalea roots are relatively shallow, so the plants need regular moisture, with about 1/2 inch of water each week an ideal amount. The best azalea plants for zone … Zone 9 on the USDA hardiness zone map is the area of Florida and southernmost Texas. It’s an evergreen azalea, which makes it susceptible to winter weather damage. © Copyright 2020 Hearst Communications, Inc. Encores are pest and disease resistant and do well in full sun to part shade. Many are even cold hardy into growing zone 6! These areas need very heat tolerant plants and the hardiest of azaleas. They can grow in sheltered locations in zone 3. Some deciduous varieties can tolerate more sun, but those grown in full sun will tend to be shorter and their blossoms will fade faster. The showy coral blooms of this Girard azalea hybrid might attract the first hummingbird visitors of the season to your garden. The shrub grows slowly, topping out at around 6 feet. Fertilize Azalea bushes in early spring with our slow release fertilizer. This often can be accomplished simply by mulching regularly with pine needs or another acid-rich organic material. You can check you soil's pH with a test kit purchased at a garden center. Rhododendron flowers have 10 stamens, while azaleas have five stamens. Like most azaleas, it prefers rich, acidic, evenly moist soil with good drainage. And the sweet fragrance of the flowers is a bonus. Plant these Azaleas in full sun to part shade. Marie is a certified master gardener and has a Ph.D. in anatomy from Temple University School of Medicine. 'Variegated Gem' is a variety for gardeners who demand three seasons of interest from their azaleas. Read our, 'Northern Hi-Lights' (Rhododendron 'Northern Hi-Lights'), 'Lemon Lights' (Rhododendron 'Lemon Lights'), 'Encore Autumn Amethyst' (Rhododendron 'Conlee'), 'Hot Shot' (Rhododendron 'Girard's Hot Shot'), 'Variegated Gem' (Rhododendron 'Girard's Variegated Gem'), 'Fashion' (Rhododendron 'Girard's Fashion'), 'Mandarin Lights' (Rhododendron 'Mandarin Lights'), Korean Azalea (Rhododendron yedoense var. Lightly prune to shape the shrub after it’s done blooming. Plant azaleas and rhododendrons with the top of the root ball slightly above soil level. The blooms will attract butterflies, hummingbirds, and other pollinators to your garden all season long. Other hardy selections include ‘Rosy Lights’ (Rhododendron ‘Rosy Lights’) and ‘Northern Lights’ (Rhododendron ‘Northern Lights’). Use Canadian sphagnum peat moss when you plant. We are the Azalea Zone, Gulf States District of the Lutheran Women’s Missionary League. These shrubs put on a unsurpassed show of pastel color in woodland gardens in late March and early April. That means that these hybrids can all be characterized as zone 4 azalea bushes. The Encore Azalea collection boasts hardy evergreen Azaleas that rebloom for 3 seasons! Don't cultivate around these plants, as they have shallow roots. Excellent in the front of a border or in a rock garden. 63 likes. 'Mandarin Lights' grows up to 5 feet tall and looks stunning when planted in a woodland garden. 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