Tallahassee residents eagerly await the initial signs of spring, marked by the captivating display presented in our southern landscapes by the beloved yet non-native Indica azaleas (Rhododendron indicum). These iconic “Southern” azaleas have evergreen foliage and dazzle us with color. Flourishing in Tallahassee, many mistakenly believe these azaleas are native to the region. However, they originated in Asia and found their way here through England in the 1800s. True North Florida azaleas, often called bush honeysuckles, are relatives of the white and pink pastel-colored azaleas, but they have been here long before humankind was around to appreciate their beauty.
Native azaleas, also known as “deciduous azaleas” or “wild azaleas,” are very different from their oriental cousins. They lose their leaves in the winter months, standing bare with plump, pointed flower buds clustered at the tip of each branch. Their branching is more upright than the traditional azalea and they vary in mature height from eight to 15 feet, depending on the species.
What makes these early-blooming native azaleas interesting is the sequence the buds go through before blooming. The first sign that something special is about to occur is when the flower buds swell from tight little clusters. These buds are a combination of flowers and foliage, and they swell until they appear to burst.
The honeysuckle-like flowers bloom on nearly naked stems in a palette of colors from gentle whites and pinks to brilliant yellows and intense oranges and reds. Most have flowers with a delightful fragrance. The individual florets are trumpet-shaped and borne in large terminal clusters, but it is the stamens and pistils that add delicate charm and interest.
There are five azaleas native to North Florida, all with unique heavenly fragrances:
Piedmont azalea (Rhododendron canescens) is one of the earliest flowering species, blooming early March in North Florida. The flowers are primarily shades of pink and rose with white accents. It is one of the most widely distributed species found growing wild in our area.
Overlapping with the piedmont’s bloom is the Florida flame azalea (Rhododendron austrinum) found on wooded slopes in hardwood forests. This species can grow up to 15 feet tall and has a wide range of colors that includes pale yellow, deep gold, and bright orange.
Blooming around the same time is the Alabama azalea (Rhododendron alabamense),which makes a rare appearance in our woods and is white with a yellow blotch in the throat.
There are two summer blooming azaleas; the swamp azalea (Rhododendron viscosum) blooms first in June or July, followed by the hammocksweet azalea (Rhododendron serrulatum) in July or August. Hammocksweet has often been lumped or confused with the swamp azalea, but the two are distinct in growth habit, flowering time, distribution, and other characteristics.
Swamp azaleas are typically low growing, peaking at about eight feet tall and often sighted in bogs, wet flatwoods, and swamp edges. The hammocksweet azaleas will grow up to 10 to 15 feet tall and occur naturally in gallberry thickets, black water streams, and sinkhole edges. Both species have pure white fragrant flowers and, when planted in the landscape, will require more shade and moisture as the delicate flowers will not tolerate the hot summer sun.
Another wild azalea that grows well in our area but is native to western central Georgia to South Carolina is the Oconee azalea (Rhododendron flammeum). Unlike the Florida native species, it has non-fragrant blooms that open in April as the new leaves emerge. Although this species is non-fragrant it has the widest variation in color of any North American azalea, from pink to salmon to yellow and gold to orange or red.
Deciduous azaleas aren’t hard to grow by any means, but they are a bit less forgiving than their evergreen counterparts. Start by choosing a location where it will receive dappled sun like underneath pines or scattered hardwood trees. A general rule is to choose a site with morning to midday sun and afternoon shade. If planted in too much shade, they will not bloom well. Well-drained, acidic soil that contains lots of organic matter from decaying leaves is also important for long term success. Your newly planted azalea will need regular watering for the first three years until established, especially during dry periods and throughout the summer months. If planted correctly they need little, if any pruning and fertilizer, and have few pests.
The tiger swallowtail and Eastern black swallowtail always seem to be the first butterflies up and about in the cool of early spring. Native azaleas are one of the few nectar sources available at this time. It is truly delightful to sit and watch them delicately sip nectar while fanning their wings, slowly working their way across the colorful groves. The swallowtail part of the wing brushes the pollen and transfers it from the anther to the stigma just perfectly, showing a rare example of wing pollination. There are plenty of native bees visiting the flowers as well; they flit past the arched stamens to burrow down into the corolla and access the nectar. The stamens and the pistil don’t come close to brushing the bees as they pass, making the swallowtail butterflies the most efficient pollinator of native azaleas.
Wild azaleas are necessary plants for butterflies, and they also draw in birds (including hummingbirds) and other wildlife, ultimately supporting the local ecosystem. They make a wonderful addition to our landscapes in North Florida and do best in a natural woodland setting. If you plan it right, you can have a veritable parade of blooms from early spring to late summer with the right combination of species. I love to combine them in mixed plantings with other native woodland plants like rabbit-eye blueberries, dogwood, serviceberry, hearts-a-busting, and red buckeye. If you don’t have room to plant one in your yard you can visit Maclay Gardens in spring and marvel at their beauty.