The Earth is covered with many types of vegetation, from evergreen forests to desert vegetation. There are almost 10,000 types of Azaleas and they can grow almost anywhere. Evergreen forms are more compact than deciduous types, creating low growing mounds that are densely packed with blooms. On the other hand, deciduous azalea varieties work nicely in woodland settings. Deciduous Azaleas are in the subgenus Pentanthera, Evergreen Azaleas are in the subgenus Tsustusti. Here is a list of Azaleas and Rhododendrons with unusual charm in terms of fall color. An azalea is a plant in the Rhododendron genus.Rhododendrons and azaleas are very similar, and sometimes the line between the two blurs, but as a general rule, azaleas are smaller, with flowers which tend to be fragrant. Flowering in winter with large flowers, sometimes doubles the wonderful white flowering ‘Alba magnifica’ is one of the most popular, ‘White bouquet’ is another. The shrub remains bare through the winter and regrows a new set of leaves the following spring. These are often semi-evergreen, with largish single flowers in mid- to late May. There are both deciduous and evergreen rhododendrons. Many series (types) of hybrid deciduous azaleas were developed in … Deciduous types offer virtually no interest in the winter landscape. Evergreen azaleas maintain some of their leaves throughout the year, while deciduous azaleas lose their leaves in autumn. Evergreen Azaleas. Many deciduous azaleas are late flowering so extend the season. Their abundance and variety of flowers make these plants a prized possession. Three main evergreen cultivar groups include: Kaempferi azaleas. All Azaleas are elepidotes; they never have scales on the bottom side of their leaves. Evergreen Azaleas. Tweet. Evergreen azaleas are dense, usually shapely plants; heading back the occasional wayward branch restores symmetry. Experts debate over what defines and azalea as separate from rhododendrons. This probably allows the wood to ripen for producing the best flowering display for the following spring season. The Indica types are taller growing and can reach around 3.5m, however they are generally kept lower than this. True rhododendron flowers tend to be bell-shaped. Most deciduous azaleas are very tough (H5-6) and wind/exposure tolerant. The different types of azaleas vary widely in cold hardiness, sun tolerance, color, size, shape and bloom dates. Share. A hybrid azalea crosses between different types or other hybrids. Hardy, Old-fashioned, tall-growing azaleas. Most azalea flowers are funnel-form. Prune deciduous azaleas while they are dormant and leafless. For the most part, azaleas bloom earlier than rhododendrons. There are 16 types of azaleas that are native to North America, and of these 16, all are deciduous shrubs. The ideal azalea planting location features filtered sunlight and protection from strong winds, as recommended by gardening website Gardens Ablaze. North American azaleas are deciduous and produce two types of buds. Types of Azaleas Unlike rhododendrons, azalea flowers usually have five stamens, rather than ten, and while there are some evergreen varieties, most are often deciduous. Here are 10 popular types of azaleas to grow in the garden. Azaleas are all in the genus, Rhododendron. In fact, there are over 10,000 different types with many hundreds of different species. The Arboretum is home to over 1000 specimens from the genus Rhododendron. Some deciduous azaleas are very cold hardy and some tolerate heat and humidity. Different Types of Azaleas Azaleas are staples in most gardens because they can survive in various conditions. The plants from this series are known as the Ghent Azaleas. The evergreen types of azalea are the more popular types for residential areas. Kurume azaleas. The Aromi azalea group, or Rhododendron aromi, consists of both an evergreen group, with 31 cultivars, and a deciduous group, with eight registered cultivars. Evergreen or deciduous, these members of the genus Rhododendron come in all shapes and sizes, from small, ground-hugging shrubs to large, tree-like specimens. The Southeastern United States is home to more types of deciduous azaleas than the rest of the world combined, and the center of that diversity lies just east of Auburn in Georgia. The azaleas native to this continent are deciduous, but most evergreen azaleas originated in Asia. Aromi azaleas have large, fragrant flowers that bloom early in the season. He started by crossing R. calundulaceum with R. prinophyllum. They prefer light dappled shade, but can also be grown in sun or more shade. Many species of deciduous azaleas are native to the east, southeast and south and one species grows wild in the west. Most deciduous Azaleas have glorious fall colors, extending the season of interest of your flowering shrubs. At least dappled sunlight is required for optimal blooming on Gibraltar azaleas. A point of confusion often arises over the term azalea. Most azaleas are deciduous, although most types used in the home landscape are evergreen. While often mistaken for rhododendrons, azaleas are generally smaller in size. In this article, we'll talk about 10 of the most popular ones. Successful hybridization of deciduous azaleas was initiated in the 1820's by Mr. P. Mortier, a baker living in Ghent, Belgium. Azaleas grow well in hardiness zones 6 through 10, but some varieties can tolerate lower temperatures in zones 3 and 4 if they're well-protected. Plant them in full sun or part day shade. 3. [1] The flower color, fragrance, and number of stamens vary among species. Azaleas from the Encore series, such as 'Encore Autumn Amethyst' with 'Lemon . 1. At least two species of deciduous azaleas are native to eastern Canada and several more species are found in New England. Most commonly, their flowers are in shades of white, pink, red, lavender, or purple and various bicolor types. Deciduous and hybrid azaleas are broken down into two main categories, as described below. Deciduous types are more sun-tolerant than evergreen types (although, in the South, you will still want to be careful not to give them excessive sunlight). Azaleas generally prefer rich, acidic soil. Deciduous azaleas have a stronger root system and will tolerate poorer conditions and a slightly higher pH than other rhododendrons. Azaleas have hairs on their leaves that grow parallel to the leaf surface. There are many different types of azaleas and most people have had one that looked beautiful but eventually died, usually because it was not a hardy variety. The plants from this series are known as the Ghent Azaleas. Let us learn more about these enchanting forest plants. Plants Shrubs Garden Types Outdoor Rooms Home Tours Biltmore Estate Azaleas The 15-acre Biltmore Estate azalea garden began in 1940 when estate superintendent Chauncey Beadle bequeathed his entire collection of azaleas—which he referred to as his children and considered the definitive American shrub—to the estate. Several deciduous azaleas are native to North America; others originated in Eastern Europe, Japan, China and Korea. Another key different between azaleas and other plants which share their genus is that the azalea has deciduous leaves, while other rhododendrons or “rhodies” are … Ghent azaleas are hybrids developed in Belgium about 150 years ago resulting from crosses between several American azalea species and R. luteum.Their single flowers, with one ring of petals, or double flowers, with numerous overlapping petals, are 1 1/2 to 2 inches across and come in white and in shades of yellow, orange, pink and red. R. austrinum, the "Florida flame azalea", is the most tolerant of warm temperatures, and is being bred into other deciduous hybrid azaleas (such as the Aromi hybrids below) to increase their heat tolerance. They are more tolerant of winter. Evergreen vs. Deciduous. 15 Different Types of Azaleas For Your Garden. However, it is the deciduous forest plants that mesmerize us with their ever-changing hues and growth pattern. They can be cut back to keep them in bounds. Deciduous azaleas shed all of their leaves in late fall before cold winter temperatures set in. 12 Different Types Of Azaleas And Why They're Good For. Successful hybridization of deciduous azaleas was initiated in the 1820's by a Belgian baker living in Ghent. The Indian Azaleas are those evergreen types to be found in the florist shops – … True rhododendrons are usually evergreen (there are exceptions). Deciduous Azalea. Azalea is one of the most coveted flowering shrub varieties. To keep bushes compact, tip-pinch frequently, starting after flowering ends and continuing until mid-June. Most evergreen azaleas originated in Japan, but some came from China, Korea or Taiwan. Autumn colour in most varieties: red, orange, yellow shades as the leaves fall. 12 Different Types of Azaleas And Why They’re Good For Your Garden Deciduous/Hybrid Azaleas. Hybrid deciduous Azaleas often have a fragrance to match their beautiful, warm, (usually yellow or orange) colored flowers. When To Prune Deciduous Azaleas. Gracing woodland gardens and shrub borders with their magnificent flowers, Azaleas and Rhododendrons are popular ornamental shrubs for gardens of all sizes. Climatic conditions, cultural conditions, and the genetics of each plant all affect the amount of foliage retained. If space allows, they are at their best when planted in bold groups and with a mix of varieties. Some deciduous azaleas are cold-hardy to Zone 3 (-40°F), while many more are cold-hardy to Zone 5 (-20°F) and warmer. Deciduous Azaleas, Evergreen Azaleas, Lepidote Rhododendrons, Elepidote Rhododendrons Producing a blaze of color from early spring through the summer, and even into the fall, Azaleas and Rhododendrons are popular ornamental shrubs for gardens of all sizes. There are deciduous and evergreen varieties of azaleas, and they produce vibrant blooms in varying shades of color. Azaleas have five stamens; leaves do not have scales and often are covered with hairs. Evergreen Hybrids. by John Haryasz. Pin. Height to 4ft (1.2m), spread to 5ft (1.5m). Beyond that, azaleas generally have smaller leaves and branches and are more often deciduous, while rhododendrons have larger, leathery leaves and are usually evergreen. All azaleas native of North America are deciduous, which means they lose their leaves in the fall. Frosts are not so damaging to Azalea mollis types as with the evergreen azaleas. 0 Shares. Azaleas grow into a compact, flowering shrub that thrives in partial shade. One is a larger and produces about 20 flowers while the other bud produces a leafy shoot. Some azaleas are very difficult to grow and others are easy so it is very important to select your azalea carefully. The deciduous azaleas have slightly more subtle colours – but no less spectacular – ranging from white through creams to rich golden yellow or orange, or from pink through to deepest red. We deal with the deciduous ‘Mollis Azaleas ‘ separately. There are dwarf azaleas, native azaleas, hybrid azaleas, young azaleas but they all have the same thing in common when it comes to pruning. In other words, where species azaleas grow from seeds, the only way to reproduce a hybrid is from cuttings. Hybrid Deciduous Azaleas. Deciduous Azaleas are tolerant of semi shaded positions, but are at their best if planted in full sun. 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