Organic Japanese Birch Seeds -  Medium Tree with Open, Conical Crown of Slender Branches

Organic Japanese Birch Seeds - Medium Tree with Open, Conical Crown of Slender Branches

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Japanese Birch
Betula Platyphylla japonica
Koyoto Birch, Oso Birch, Kuril Birch, Asian Birch, Oriental Birch

Description: Medium tree with open, conical crown of slender branches reaching nearly to the ground; more often a clump of several slightly leaning trunks from an old stump or a central point. Forms a very nice pyramidal form from young to older growth.
USDA Zone: 2b-9a
Height: 25 – 40 feet
Diameter: 1 – 2.5 feet
Leaves: 2-3" (5-7.5 cm) long, 1 1/2-2 1/2" (4-6 cm) wide. Triangular, tapering from near base to long-pointed tip; sharply and doubly saw-toothed; usually with 4-8 veins on each side; leafstalks slender, with black gland-dots. Shiny dark green above, paler with tufts of hairs along midvein beneath; turning pale yellow in autumn.
Bark: Chalky or grayish-white; smooth, thin, not papery; becoming darker and fissured at base.
Twigs: Grayish-White, slender, with warty gland-dots.
Flowers: Tiny; in early spring. Male yellowish, with 2 stamens, many in long drooping catkins near tip of twigs. Female greenish, in short upright catkins back of tip of same twig.
Cones: 3/4-1 1/4" (2-3 cm) long; cylindrical, brownish, spreading, short-stalked; with many hairy scales and hairy 2-winged nutlets; maturing in autumn.
Growth Rate: Medium to fast
Soil: Dry to moist, sandy, loamy, to clayey soils.
Sun: Full sunlight, will tolerate shaded positions.
Habitat: Dry barren uplands, also on moist soils, in mixed woodlands.
Range: Northern Japan spreading in the Kuril Island chain.
Discussion: A pioneer tree on clearings, abandoned farms, and burned areas, Russian Birch grows rapidly but is medium-lived. A nurse tree, it shades and protects seedlings of the larger, long-lived forest trees. This cultivar was selected by Dr. Ed Hasselkus at the University of Wisconsin for its borer resistance and tolerance to heat. The bark is white and does not exfoliate. Seedlings from this cultivar do not necessarily show the same level of borer resistance. The glossy green foliage turns yellow in the fall.

Materials: Organic Japanese Birch Seeds