Acer palmatum Corallinum is a dwarf maple with a bushy shape. Spring color is fantastic pink – turning to light green in the summer and then changing to scarlet-red in the fall. This maple is one of numerous maples that have the hot-pink color in the spring and then evolve to light green before turning crimson in the fall. Others include Akaji nishiki, Phoenix, Kawahara Rose, Beni maiko,and Hino tori nishiki. Corallinum is similar to both Akaji nishiki and Phoenix in that they are bushy dwarfs. Both Beni maiko and Hino tori nishiki are upright trees.
Acer palmatum Corallinum is a slow growing maple with an estimated height in 10 years is 4’ tall and 4’ wide. Slow growing dwarf maples require less water than their faster growing cousins and they have smaller root balls. Corallinum can be grown in an ornamental container or planted in the garden. A one gallon size should be grown in a container for a few years before moving to the garden. If kept in a container the maple can be moved to an unheated garage or shed for winter protection. This maple is hardy to -10 degrees, USDA zone 6 when established and planted in the ground.
Please do not keep any maple in the black plastic nursery pot they are sold and shipped in. They should be re-potted to a nice ornamental container that is 4-5″ larger in diameter than the existing container. Small maples should never be placed in containers larger than that. A large container will hold the excess water and root rot can develop. See Planting Japanese Maplesand Care and Maintenance of Japanese Maples to learn more about the proper way to container grow.
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First photo shows my Corallinum which is 20 years old and 2′ tall and wide. It was taken in the spring of 2021 and I have a wire basket around it to keep the critters from niblling. The second photo shows fall color courtesy of Buchholz Nursery.