Hybrid deciduous Azaleas often have a fragrance to match their beautiful, warm, (usually yellow or orange) colored flowers. Types of Azaleas The evergreen types of azalea are the more popular types for residential areas. Three main evergreen cultivar groups include: Kaempferi azaleas. 3. Most azalea flowers are funnel-form. There are dwarf azaleas, native azaleas, hybrid azaleas, young azaleas but they all have the same thing in common when it comes to pruning. There are both deciduous and evergreen rhododendrons. Their abundance and variety of flowers make these plants a prized possession. Prune deciduous azaleas while they are dormant and leafless. Some deciduous azaleas are very cold hardy and some tolerate heat and humidity. Successful hybridization of deciduous azaleas was initiated in the 1820's by Mr. P. Mortier, a baker living in Ghent, Belgium. Beyond that, azaleas generally have smaller leaves and branches and are more often deciduous, while rhododendrons have larger, leathery leaves and are usually evergreen.  The flower color, fragrance, and number of stamens vary among species. 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. Most evergreen azaleas originated in Japan, but some came from China, Korea or Taiwan. Most deciduous azaleas are very tough (H5-6) and wind/exposure tolerant. Deciduous types offer virtually no interest in the winter landscape. There are 16 types of azaleas that are native to North America, and of these 16, all are deciduous shrubs. 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 azaleasâwhich he referred to as his children and considered the definitive American shrubâto the estate. Hybrid Deciduous Azaleas. The azaleas native to this continent are deciduous, but most evergreen azaleas originated in Asia. Pin. Deciduous Azaleas are in the subgenus Pentanthera, Evergreen Azaleas are in the subgenus Tsustusti. Azaleas generally prefer rich, acidic soil. They prefer light dappled shade, but can also be grown in sun or more shade. 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. Another key different between azaleas and other plants which share their genus is that the azalea has deciduous leaves, while other rhododendrons or ârhodiesâ are â¦ Many deciduous azaleas are late flowering so extend the season. The plants from this series are known as the Ghent Azaleas. The Indian Azaleas are those evergreen types to be found in the florist shops â â¦ Gracing woodland gardens and shrub borders with their magnificent flowers, Azaleas and Rhododendrons are popular ornamental shrubs for gardens of all sizes. 0 Shares. 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. The Indica types are taller growing and can reach around 3.5m, however they are generally kept lower than this. Evergreen vs. Deciduous. Tweet. Evergreen Hybrids. When To Prune Deciduous Azaleas. 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. If space allows, they are at their best when planted in bold groups and with a mix of varieties. They can be grown in soils up to pH 6.5 when plenty of ericaceous compost is added. 15 Different Types of Azaleas For Your Garden. Unlike rhododendrons, azalea flowers usually have five stamens, rather than ten, and while there are some evergreen varieties, most are often deciduous. The Earth is covered with many types of vegetation, from evergreen forests to desert vegetation. Deciduous azaleas shed all of their leaves in late fall before cold winter temperatures set in. by John Haryasz. The different types of azaleas vary widely in cold hardiness, sun tolerance, color, size, shape and bloom dates. Deciduous Azalea. For the most part, azaleas bloom earlier than rhododendrons. Successful hybridization of deciduous azaleas was initiated in the 1820's by a Belgian baker living in Ghent. Here are 10 popular types of azaleas to grow in the garden. Some azaleas are very difficult to grow and others are easy so it is very important to select your azalea carefully. Many species of deciduous azaleas are native to the east, southeast and south and one species grows wild in the west. A hybrid azalea crosses between different types or other hybrids. At least two species of deciduous azaleas are native to eastern Canada and several more species are found in New England. Azaleas one stamen per flower lobe - Rhododendrons have two stamens per lobe. One is a larger and produces about 20 flowers while the other bud produces a leafy shoot. Different Types of Azaleas Azaleas are staples in most gardens because they can survive in various conditions. Azaleas are all in the genus, Rhododendron. Azaleas grow into a compact, flowering shrub that thrives in partial shade. Hardy, Old-fashioned, tall-growing azaleas. In fact, there are over 10,000 different types with many hundreds of different species. Here is a list of Azaleas and Rhododendrons with unusual charm in terms of fall color. The Arboretum is home to over 1000 specimens from the genus Rhododendron. 1. Azaleas have hairs on their leaves that grow parallel to the leaf surface. Azalea is one of the most coveted flowering shrub varieties. Many series (types) of hybrid deciduous azaleas were developed in â¦ Flowering in winter with large flowers, sometimes doubles the wonderful white flowering âAlba magnificaâ is one of the most popular, âWhite bouquetâ is another. Azaleas have five stamens; leaves do not have scales and often are covered with hairs. He started by crossing R. calundulaceum with R. prinophyllum. Some deciduous azaleas are cold-hardy to Zone 3 (-40°F), while many more are cold-hardy to Zone 5 (-20°F) and warmer. At least dappled sunlight is required for optimal blooming on Gibraltar azaleas. Experts debate over what defines and azalea as separate from rhododendrons. Kurume azaleas. Autumn colour in most varieties: red, orange, yellow shades as the leaves fall. A point of confusion often arises over the term azalea. 12 Different Types Of Azaleas And Why They're Good For. 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. Share. Evergreen azaleas maintain some of their leaves throughout the year, while deciduous azaleas lose their leaves in autumn. The Aromi azalea group, or Rhododendron aromi, consists of both an evergreen group, with 31 cultivars, and a deciduous group, with eight registered cultivars. All azaleas native of North America are deciduous, which means they lose their leaves in the fall. The plants from this series are known as the Ghent Azaleas. They are more tolerant of winter. Thus the leaves are dimorphic (two types), each type lasting just long enough to keep the evergreen appearance of the azalea in distinct contrast to the deciduous types of azaleas that lose all foliage during late fall and winter. North American azaleas are deciduous and produce two types of buds. 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