Acer Maple. Section Palmata. A. circinatum A. japonica A. palmatum A. pseudosieboldianum A. shirasawanum A. sieboldianum

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1 Acer Maple Section Palmata A. circinatum A. japonica A. palmatum A. pseudosieboldianum A. shirasawanum A. sieboldianum

2 Acer palmatum Japanese Maple Japanese maple is a medium-sized trees with many cultivars that make exceptional specimen plants. Native to Japan, China, and Korea.

3 Acer palmatum Japanese Maple Growth habit The species produces a rounded crown. It can be grown a single or multiple trunk specimen. Tree size - This species can reach 50 feet tall, but is usually less than 30 feet tall in the landscape. Sapindaceae

4 Acer palmatum Japanese Maple Flowers - Small reddish-purple flowers appear in arching corymbs in the spring as the leaves expand. Within each flower, the sepals are reddish and the smaller, inner petals are white.

5 Acer palmatum Japanese Maple Fruit - Paired samaras are usually green on green-leaved plants and purple-red on purple-leaved cultivars. They mature in late the autumn.

6 Acer palmatum Japanese Maple Leaf - Opposite, palmately lobed with 5 to 9 deeply cut lobes. Up to 5 inches long and wide. Leaf margin doubly serrate. Very variable in selected cultivars. Sapindaceae

7 Acer palmatum Japanese Maple Leaf - One of the great attributes of Japanese maple is the exceptional autumn color that can be vibrant yellow, purple or red.

8 Acer palmatum Japanese Maple Culture: Plants prefer light shade and a rich, moist well-drained soil. Cultivars vary in winter hardiness. Hardy in zones 8-5. Some cultivars hardy only to zone 6. Sapindaceae

9 There are hundreds of cultivars that vary in plant size, shape, and leaf type: The basic types include: Full size vs. slow growing. Upright vs. pendulous. Green vs. purple leaf color. Non-dissected vs. dissected leaves. Sapindaceae Acer palmatum Japanese Maple Standard bark vs. colored bark types.

10 Acer palmatum Japanese Maple Full size vs. slow growing. Sapindaceae 15 to 30 feet tall. Up to 40 feet tall.

11 Acer palmatum Japanese Maple Upright vs. pendulous.

12 Acer palmatum Japanese Maple Green vs. purple leaf color.

13 Acer palmatum Japanese Maple Japanese maple cultivars with purple foliage are technically A. palmatum var. atropurpureum.

14 Acer palmatum Japanese Maple As seen in the image to the right, plants can loose their purple leaf color in the summer heat. Some cultivars retain color longer than others. Bloodgood is the standard to judge other cultivars for retaining summer purple leaf color.

15 Acer palmatum Japanese Maple Purple foliage color can be difficult to incorporate in the landscape, because we expect tree color to be green. Sometimes purple just looks out of place and can distract from the appearance of the landscape.

16 Acer palmatum Japanese Maple Purple foliage should be used with restraint. Purple-leaved plants should be used to accentuate a focal point in the landscape.

17 Acer palmatum Japanese Maple Non-dissected vs. dissected leaves. Cultivars vary greatly in their degree to which the leaf is dissected. Dissected leaves occur in both green and purple leaf types. Sapindaceae

18 Acer palmatum Japanese Maple Members of the dissectum group of cutleaf cultivars are technically listed as A. palmatum var. dissectum. They are all similar in texture to Filigree and the leaves can have between 7 and 9 lobes. Sapindaceae Filigree Filigree

19 Acer palmatum Japanese Maple Cultivars that are both purple-leaved and dissected would be listed as A. palmatum var. dissectum atropurpureum.

20 Acer palmatum Japanese Maple Standard bark vs. colored bark types. Bark color can vary from gray to green to bright coral red on young stems. Plants tend to loose the coloration on older stems.

21 Acer palmatum Japanese Maple Sango kaku is one of the more popular Japanese maples because of the its brightly colored stems. Sapindaceae

22 Acer palmatum Japanese Maple Uses: The slow growth and small size of Japanese maple cultivars make them very useful for small residential designs.

23 Acer palmatum Japanese Maple Uses: Texture, form and color make Japanese maples instant focal points in a landscape. Sapindaceae

24 Acer palmatum Japanese Maple Uses: Japanese maples are important components of the plant choices used for an Oriental garden. Sapindaceae

25 Acer palmatum Japanese Maple One famous garden in Japan is called the moss garden (Saiho-ji) where the landscape is primarily designed with moss, pine and Japanese maple.

26 Acer Maple Section Trifoliata Acer griseum Paperbark maple Acer mandshuricum - Manchurian maple Acer maximowiczianum - Nikko maple Acer triflorum Three flower maple

27 Acer griseum Paperbark Maple Paperbark maple has beautiful cinnamon or red-brown peeling, papery bark on its trunk and branches, making it a wonderful specimen tree. It is native to China and Japan.

28 Acer griseum Paperbark Maple Growth habit - Paperbark maple produces an upright-oval to rounded crown and it is fine texture. Tree size - 20 to 30 feet tall and 15 to 25 feet wide. Paperbark maple can grow 6 to 12 inches a year over 10 to 15 years.

29 Acer griseum Paperbark Maple Flowers - The flowers are greenish, on pendulous, 1-inch-long hairy peduncles. The stigma is receptive prior to stamen elongation. Sapindaceae Greenishyellow sepals and petals Stamens Developing samara Style Stigma

30 Acer griseum Paperbark Maple Fruits - The paired samaras are about 1-inch long and pubescent. They mature in the autumn. The majority of samaras do not produce viable seeds.

31 Acer griseum Paperbark Maple Leaf - Opposite; The compound leaf is a classic trifoliate arrangement and up to 6 inches long. Each leaflet has a coarsely serrate (toothed) margin especially towards the tip of each leaflet. The underside of the leaf have raised veins and a silvery, blue-green coloration.

32 Acer griseum Paperbark Maple Leaf - The leaves can be green or bluish-green above and silvery below. In autumn, leaves turn and effective bronze, orange or red.

33 Acer griseum Paperbark Maple Buds - The buds are clustered in the terminal. They are maroon to black and sharply pointed with hairs on the edges of the bud scales and a larger tuft of hair at the base of the terminal bud. Stems and petioles are pubescent. Sapindaceae

34 Acer griseum Paperbark Maple Culture: Paperbark maple prefers well-drained and moist soil. Paperbark maple can be planted in full sun to part shade. Trees will not tolerate extended drought, especially in poor soil. Hardy in zones 8-5.

35 Acer griseum Paperbark Maple Paperbark maple is often grown from seed and therefore the bark can vary significantly among the seedlings.

36 Uses: Sapindaceae Acer griseum Paperbark Maple Paperbark maple is an exceptional small landscape tree that can be used as a specimen tree or massed to form a small tree group.

37 Uses: Sapindaceae Acer griseum Paperbark Maple Paperbark maple creates an excellent feature in the landscape and because of the ornamental bark, it is a plant with four seasons of interest.