Leaves are shiny, dark green above and pale green beneath, 3 lobed and 3-6" across. 'Columnare' will typically grow 40-60' (sometimes 80') tall with a narrow, columnar form. 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. Its leaves are 5 to 15 centimetres long, light green on top and paler underneath. Genus name is the Latin name for a maple tree. Tree Atlas Red maple Scientific name: Acer rubrum On this page What it looks like Where it is found Planting Tips Did you know What it looks like The red maple is a medium-sized tree that can grow up to 25 metres tall, with a trunk that’s 60 centimetres in diameter. 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. Leaves (to 2-5" long) have 3 principal triangular lobes (sometimes 5 lobes with the two lower lobes being largely suppressed). 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. Detailed Information Flower: Compact, spreading, to -inch clusters on short lateral branches at tips of 1 year old branches, a cluster consisting of 2 to 6 flowers and appearing before the leaves emerge in spring. It grows faster than Norway and sugar maples, but slower than silver maple. Acer rubrum (Red Maple) Pick an image for a larger view. It typically grows 40-60’ tall with a rounded to oval crown. Red flower buds form in winter, opening into showy red flowers before the tree leafs out. When planting in the ground, plant it at the same depth it is growing in its nursery container, in a large hole well prepared with any necessary amendments-which can be especially important if the soil is not sufficiently acidic.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. A red maple tree (Acer rubrum) gets its common name from its brilliant red foliage that becomes the focal point of the landscape in autumn, but red colors play a large part in the tree’s ornamental display in other seasons as well.Or, you can place the pot in a sheltered outdoor location (a cold frame, for example) through the winter, then continue to grow it for another season before planting it. Seeds started in spring will often be ready for landscape planting in the fall. Continue growing the seedling tree in a sunny location until planting time.The seeds usually germinate and sprout within 10 days. Water the pot regularly, keeping it uniformly moist but not soggy.Plant the seeds 1 to 2 inches deep, moisten the soil mix, then place the pot in a sunny location. Fill a well-draining 8-inch pot with a commercial potting mix.Select seed pods that are beginning to turn brown and break them open to remove the seeds. Collect seeds from a mature red maple tree in late spring or early summer. Noteworthy Characteristics 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.
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