Staff’s Favorite Plant of the Month
June: Azalea Bonsai
Staff member: Gabriel Baerga, Horticulturalist
Location: Bonsai Courtyard
Satsuki azaleas are a cultivar group within the genus Rhododendron, a type of evergreen azalea that has been extensively cultivated and hybridized in Japan. It is believed that the first Satsuki azaleas likely originated as natural hybrids between Rhododendron indicum and Rhododendron eriocarpum. Like other members of the Rhododendron genus, Satsuki azaleas generally prefer acidic soils. Most Satsuki varieties are hardy and can tolerate temperatures as low as 0°F, with some cultivars enduring down to -10°F. However, providing winter protection can help ensure their longevity. They thrive best in partial shade or under filtered sunlight, as prolonged exposure to direct sun can stress the plant and damage its foliage and flowers.
The name “Satsuki” corresponds to the traditional Japanese name for the month of May, referencing the typical blooming period of these azaleas, which occurs from May to June. Satsuki azaleas are highly valued in bonsai cultivation for their abundant flowering, rapid trunk development, and their adaptability to hard pruning of both roots and canopy. There are thousands of Satsuki varieties, each with unique floral characteristics. The variety featured in our collection is Kaho, known for its delicate pinkish-white blossoms and has been 38 years in bonsai training.