Acer Palmertonii

Acer palmatum encompasses thousands of named cultivars. Their leaf color, form, degree of dissection and plant habits vary widely from cultivar to cultivar; most are small to medium-sized shade trees although weeping forms exist; they tolerate part to full sun conditions but require protection in hot afternoon sunlight climates; their lacy foliage provides dramatic autumn hues of yellow, red, orange and bronze before falling from their trees.

Historic emissions from two zinc smelters on Blue Mountain near Palmerton, Pennsylvania (USA) damaged forest ecosystems and caused contamination of both soil and water supplies. Concentrations of arsenic, cadmium, and lead in white-tailed deer (Odocoileus virginianusA) shot within 20 km from these smelters exceeded regulatory limits; other organisms including mosses, lichens and soil invertebrates were also highly polluted by these metals.

Chemical analysis of metal contaminants at the contaminated site revealed zinc and cadmium to be the predominant contaminants. Soil treatment using carbonaceous coagulants and polymers reduced these concentrations to levels well below regulatory standards; water treatment using this process resulted in over 95% removal of Zn and 40% of Mn.

The ‘Garnet’ cultivar features exquisite deep green foliage that is deeply lobed and dissected, featuring beautiful red-orange leaves resembling gemstone garnet in spring that gradually turn yellow-gold and orange before changing colors in fall – becoming stunning shades of red before dying back for autumn color changes. A vigorous medium-sized maple with spreading, cascading habit that grows slowly to an 8 ft (2.4 m).

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