Acer shirasawanum Aureum is known as the ‘Golden Full Moon Maple’. Spring color is exquisite lime green. Summer color is a golden yellow-green with a tinge of red along the edges of each leaf. Fall color ranges from gold to orange to crimson on each leaf so that it is a kaleidoscope of color. Morning sun with afternoon shade is needed to prevent burning the leaves. Placement in either a northern or eastern location would be best.
Aureum is an older cultivar in the same genus as Autumn Moon, Jordan, Kawaiiand Moonrise. Shirasawanum refers to Full Moon maples that include the four mentioned above plus Johin,Mikado, and Red Dawn. All shirasawanum maples can be identified by looking at the flowers and subsequent seed pods [samaras]. If they point up rather than hang down then it is a shirasawanum maple – palmatum samaras hang down.
Aureum is a spectacular tree though very slow growing. Typically it takes 5-6 years to grow a 3 gallon size. Estimated height in 10 years is 6-7′ and about the same width. Because it is so slow growing it needs less water than most other maples. Do not over water – a critical error which can cause root rot and death. The average mature size is 8′ tall and wide in 20 years. Once established hardy to -20, USDA Zone 5.
If you love Japanese Maples as much as I do, you can learn more about these amazing trees by joining the Facebook Group – Japanese Maples and Conifers.It is free to join – you just have to be a Facebook member. The contributors to the group have a wealth of experience and post many photos. This is what I value the most – learning about variations of growth, leaf size and color in different sections of the USA and around the world. I often participate in the discussions.
Limited Availability – 1 gallon size Aureum are available now. 2 and 3 gallon size maples will be available for shipping in May/June 2021 The 2 gallon size maples average between 16″ and 22″ tall. The 3 gallons are full and between 20″-28″ tall. The are not very tall, but they are full and multi-branched. Perfect for a container on the North or East side of the house. These maples grow slow and sell fast. In my experience Aureum is the number one selling maple in the Pacific Northwest.
The first photo shows a 7 gallon Aureum previously sold originally from Buchholz Nursery. The next two photos show my mature Aureum in the spring and then with fall color.