Amur maackia is a small, deciduous tree with a broad, rounded habit. Typically grows in cultivation at a slow-to-moderate rate to a height of 20-30' (to 60' in the wild). Features erect, narrow, spike-like clusters (4-6" long) of fragrant, white, pea-like flowers which appear in late spring. Flowers are followed by flat seed pods (2-3" long). Compound, odd-pinnate, dark olive green leaves (7-13 leaflets each) are attractive in summer but produce no fall color. Coppery-bronze bark exfoliates on mature trees. Karlovich Maack, a 19th century Siberian explorer, discovered the tree growing in the region of the Amur River which serves as the border between Siberia and China. This member of the pea family is both closely related and similar in appearance to yellowwood (Cladrastis). Small shade tree, street tree and flowering tree. It is a good species to plant for someone that wants a tree that is more unusual and less common than other shade trees. Best grown in average, medium moisture, well-drained soil in full sun to part shade. Prefers full sun. Adapts to a wide range of soil conditions. Hardy in zones 3-7.
Growing Instructions for the Amur Maackia
The seeds have a hard seed coat that has to be treated, or scarified, in order for water to enter the seeds so that they can sprout. 1. Scarify the seeds by nicking or sanding the seed coat. The seeds can be sanded with sandpaper, a nail file or an emery board. 2. Soak the seeds in water for 24 hours. 3. The seeds like moist, well-drained soil. Prepare a mixture of half potting soil and half sand, perlite or vermiculite. Put the soil in a pot. 4. Sow the seeds on the soil. 5. Cover the seeds with a layer of that is ¼ of an inch thick. 6. Water the soil so that it is moist but not wet. The seeds germinate in 3 weeks. 7. When the seedlings are a few inches tall, they can be transplanted.