Orange to red fall color for this cultivar is brilliant in most years. rubrum cultivars), and in more northern areas are sometimes subjected to frost prior to acquiring fall color. Leaves retain good green color well into fall (longer than many other A.
Glossy dark green leaves with red stems have 3-5 lobes and are 3-6” across. Flowers give way to red-tinged samaras (to 1 1/2” long). Attractive red flowers appear in early spring before the foliage emerges. It grows to 40-50’ tall with an oval rounded form. ‘October Glory’ is a female cultivar that, as the cultivar name suggests, is perhaps best noted for its exceptional fall color. Specific epithet of rubrum meaning red is everywhere in evidence: red flowers in dense clusters in late March to early April (before the leaves appear), red fruit (initially reddish, two-winged samara), reddish stems and twigs, red buds, and, in the fall, excellent orange-red foliage color. Genus name is the Latin name for a maple tree. Flowers on a given tree are primarily male or female or monoecious and appear in late winter to early spring (March-April) before the leaves. Leaves are medium to dark green above and gray green below. Lobes have toothed margins and pointed tips. Palmate leaves are bright green and turn bright orange to deep reddish-purple in fall. Leaves (to 2-5" long) have 3 principal triangular lobes (sometimes 5 lobes with the two lower lobes being largely suppressed). Deciduous tree with an upright, rounded habit. Quality of red fall color on species plants is variable. Emerging new growth leaves, leafstalks, twigs, flowers, fruit and fall color are red or tinged with red.
In northern states, red maple usually occurs in wet bottomland, river flood plains and wet woods, but in Missouri it typically frequents drier, rocky upland areas. It grows faster than Norway and sugar maples, but slower than silver maple. It typically grows 40-60’ tall with a rounded to oval crown. Shantung Maple (Acer truncatum) is 20-25 feet at maturity with a rounded crown. A rapid grower in a wide range of soils but is only moderately tolerant to drought. It has deep red to reddish-purple fall color. Acer rubrum, commonly called red maple, is a medium-sized, deciduous tree that is native to Eastern North America from Quebec to Minnesota south to Florida and eastern Texas. October Glory Maple (Acer rubrum ‘October Glory’) is 40 feet at maturity with a broadly oval to round shape.
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