The Japanese maple , or Acer palamtum , is a deciduous tree frequently used as an ornamental for its form and foliage . There are many varieties renowned for dissimilar growth habit , leaf shape and foliation colors or patterns . It can be frustrating or alarming when a Japanese maple cherish for brilliant , unparalleled colouring begins to grow fleeceable . This color modification could be stimulate by a number of factors and may or may not be treatable .

Normal Seasonal Color Change

There are hundred of Japanese maple cultivar that exhibit swell change in leaf form , habit and colouration . Typically , however , Japanese maples showcase their most vivid colors in spring and evenfall . Some varieties only experience colour alteration in the fall . So , unless the maple tree is of a specific cultivar that is make out to retain its color through the summer , gestate some degree of colouration alteration during the hot summer month .

Inadequate Light

Some Nipponese maple cultivar that normally sport cherry-red leaf can lighten and twist light-green if they do not receive equal sunlight . This species prefers full sunlight to fond shade but sealed cultivars are more tolerant of tone than others . If too much shade is an issue , consider transplanting the tree before it becomes quite well - established .

Young and Vigorous

The Texas A&M Extension Service asserts that occasionally youthful , vigorously growing trees can lose their brilliant colors . When the maple by nature slows its growth rate it may retrieve its original colouring .

Nutrient Deficiency

A Japanese maple suffering from a nutrient deficiency will typically have yellow or chickenhearted - green leaves with darker vein . The most common deficiency in Nipponese maple is manganese . If nutrient deficiencies are suspect , get the soil prove and amend or fertilise it according to results .

Loss of Variegation

Even after twelvemonth of perfect health , care and coloring a variegate Japanese maple can suffer its variegation and revert back to its original leaf form or colour . This just means that the Sir Herbert Beerbohm Tree is a periclinal chimaera , a type of superimposed mutation that is normally stable . However , on rarefied affair the want , variegated anomaly can mislay its pattern . The specimen will stay in the same health it was prior to the colouration change .

Green Stock Tree

Often , a difficult to propagate but desire Japanese maple cultivar will be grafted to the rootstock of a tree diagram with more stock green foliage . This " light-green " flora base can still send up shoots . If the shoot are not pruned back early on , they will leaf out and can eventually dominate over the desire colouration . Prune any undesirable branches as soon as they are comment .

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