question by eabcpa november 13, 2006. i purchased 2 monrovia coral bark maples approx 2 years ago. Two species are referred to as Japanese maples: Acer palmatum and A. japonicum. problem with coral bark maple - knowledgebase question. Noted for its showy coral bark and fall color, award-winning Acer palmatum 'Sango-kaku' (Coral-Bark Maple) is a large deciduous shrub or small tree that is highly desirable. fruits and vegetables. one is doing fine, the other has branches turning black and now the trunk is turning black. it had a split in the bark of the … A quick update on the coral bark Japanese maple. mauricetown, nj. Leaf Scorch: On maple (Acer species) trees a number of problems cause symptoms that are generally classified as leaf scorch. This takes a bit of time, since the bark doesn't grow that quickly, but if you maintain the healing process, you should see an improvement within a year. Japanese maple trees, when damaged, are susceptible to mold, fungus and boring insects. Beautiful small tree has brilliant coral bark on young branches; color intensifies in winter. teach2blossom. Perhaps they don't like damp winters? We like the look of Coral Bark and some similar maples but were told that Coral Bark Maples typically last only 5-10 years in our area, and we didn't want to invest in a tree and have to replace it in 5-10 years. In the fall, the delicate 5-lobed leaves which open pinkish-yellow, and mature to light green in summer, warm up to a soft yellow in fall before they shed to the ground. I had a coral bark Japanese maple planted in a large container on my back patio for about two years. Can anyone advise on good, vase-shaped ornamental maple candidates … Some do better than others. It has some really strange die back happening. Deciduous. Many times a plants health is beyond our control and hard to determine why some don't make it. 4 years ago. 30° to 35° F Elizabeth-Your very welcome. The original poster had asked about a "coral bark maple" or Sango Kaku. This spring it didn’t come back so I pulled it out and planted a “Red Select” Japanese maple in the same pot. Coral Bark Japanese Maple Reseeding Problem. Many of times I have had a Japanese maple decline no matter what care I have given them. I have a Coral Bark Japanese Maple which I planted about eight years ago and is thriving beautifully. Diseases. As they fall, they expose the bright, coral red bark … Many in hotter climates get sunburn and summer die back with Sango Kaku even though it is typically listed as a "full sun" tree. Attractive branching silhouettes and interesting leaf shapes and colors make Japanese maples among the most widely planted, small, ornamental trees in the Untied States. It’s still very small and the top has a nice amount of red, lacy leaves. Deeply cut light green leaves display attractive red margins that turn golden in fall. Partial sun. The latter is often also called fullmoon maple. Moderate grower 15 … Scorch symptoms are light brown or tan dead areas between leaf veins or around the leaf margins. However, for some reason, this year it reseeded itself so I had literally thousands of tiny seedlings sprouting in the bed around it, even into other beds … Protect the tree from excess moisture and bugs until the tree has time to heal. There are many posts on this forum and others about the variability of this specific cultivar. Occasionally the leaf margins are yellow or chlorotic. Don't feel bad about your Coral Bark.