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Acer palmatum - Thunb.                
                 
Common Name Japanese Maple
Family Aceraceae
USDA hardiness 6-8
Known Hazards None known
Habitats Woods and thickets in a wide range of soils and exposures in lowland and mountains to 3000 metres in C. and S. Japan[58, 200].
Range E. Asia - Japan
Edibility Rating  
Medicinal Rating  
Care
Fully Hardy Moist Soil Semi-shade Full sun

Summary       
Bloom Color: Red. Main Bloom Time: Early spring, Late spring, Mid spring.Form: Rounded, Upright or erect, Vase.

Physical Characteristics       
 icon of manicon of lolypop
Acer palmatum is a deciduous Tree growing to 8 m (26ft) by 6 m (19ft) at a slow rate.
It is hardy to zone (UK) 5 and is not frost tender. It is in flower from May to June. The flowers are monoecious (individual flowers are either male or female, but both sexes can be found on the same plant)Suitable for: light (sandy), medium (loamy) and heavy (clay) soils, prefers well-drained soil and can grow in heavy clay soil. Suitable pH: acid, neutral and basic (alkaline) soils and can grow in very acid soils.
It can grow in semi-shade (light woodland) or no shade. It prefers moist soil.

Synonyms
A. polymorphum
Acer palmatum Japanese Maple


Acer palmatum Japanese Maple
   
Habitats
Woodland Garden Secondary; Dappled Shade; Shady Edge;
Edible Uses                                         
Edible Parts: Leaves;  Sap.
Edible Uses:

The sap contains a certain amount of sugar and can either be used as a drink, or can be concentrated into a syrup by boiling off the water[105, 177, 183]. The syrup is used as a sweetener on many foods. The concentration of sugar is considerably lower than in the sugar maples (A. saccharum). The tree trunk is tapped in the early spring, the sap flowing better on warm sunny days following a frost. The best sap production comes from cold-winter areas with continental climates. Leaves - cooked[105, 177, 179]. We have eaten nicer leaves[K].
Medicinal Uses
Plants For A Future can not take any responsibility for any adverse effects from the use of plants. Always seek advice from a professional before using a plant medicinally.



None known
Other Uses
Preservative.

The leaves are packed around apples, rootcrops etc to help preserve them[18, 20].
Cultivation details                                         
Landscape Uses:Border, Pest tolerant, Rock garden, Standard, Specimen, Woodland garden. Of easy cultivation, it succeeds in most soils preferring a good moist well-drained soil on the acid side and partial shade[11, 182]. Grows well in heavy clay soils. Chlorosis can sometimes develop as a result of iron deficiency when the plants are grown in alkaline soils, but in general maples are not fussy as to soil pH. Requires some shelter in the cooler areas of Britain and protection from cold drying winds[1]. Plants are hardy to about -25°c[184], but spring growth is subject to damage by late frosts[11]. A very ornamental tree[1], it is a polymorphic species[1] and there are many named varieties[11, 182]. Grows well with rhododendrons. Most maples are bad companion plants, inhibiting the growth of nearby plants[18, 20]. Special Features:Attractive foliage, Not North American native, Inconspicuous flowers or blooms.
                                                                                 
Propagation                                         
Seed - best sown as soon as it is ripe in a cold frame, it usually germinates in the following spring. Pre-soak stored seed for 24 hours and then stratify for 2 - 4 months at 1 - 8°c. It can be slow to germinate. The seed can be harvested 'green' (when it has fully developed but before it has dried and produced any germination inhibitors) and sown immediately. It should germinate in late winter. If the seed is harvested too soon it will produce very weak plants or no plants at all[80, 113]. When large enough to handle, prick the seedlings out into individual pots and grow them on until they are 20cm or more tall before planting them out in their permanent positions. Layering, which takes about 12 months, is successful with most species in this genus. Cuttings of young shoots in June or July. The cuttings should have 2 - 3 pairs of leaves, plus one pair of buds at the base. Remove a very thin slice of bark at the base of the cutting, rooting is improved if a rooting hormone is used. The rooted cuttings must show new growth during the summer before being potted up otherwise they are unlikely to survive the winter. Only strong-growing cultivars succeed from cuttings, plants of the dissected or variegated cultivars will rarely grow into good plants.
Related Plants                                         
Latin NameCommon NameEdibility RatingMedicinal Rating
Acer acuminatum 10
Acer argutum 20
Acer caesium 01
Acer campestreField Maple, Hedge maple21
Acer carpinifoliumHornbeam Maple20
Acer circinatumVine Maple21
Acer crataegifoliumHawthorn-Leaved Maple00
Acer distylum 20
Acer ginnalaAmur Maple10
Acer glabrumRock Maple, Rocky Mountain maple, Douglas maple, Greene's maple, New Mexico maple, Torrey maple21
Acer interiusBox Elder20
Acer macrophyllumOregon Maple, Bigleaf maple, Oregon Maple31
Acer monoMaple21
Acer negundoBox Elder31
Acer oblongum 00
Acer pectinatumMaple00
Acer pensylvanicumMoosewood, Striped maple, Moosewood, Pennsylvania Maple01
Acer platanoidesNorway Maple, Harlequin Maple20
Acer pseudoplatanusSycamore, Great Maple, Scottish Maple, Planetree Maple21
Acer rubrumRed Maple, Drummond's maple, Swamp Maple31
Acer saccharinumSilver Maple, River Maple, Soft Maple31
Acer saccharumSugar Maple, Florida Maple, Hard Maple, Rock Maple42
Acer saccharum grandidentatumBig-Tooth Maple, Canyon Maple, Rocky Mountain Sugar Maple40
Acer saccharum nigrumBlack Maple41
Acer spicatumMountain Maple22
Acer sterculiaceum 00
Acer tataricumTatarian Maple20
Acer truncatumShantung Maple, Purpleblow Maple10
Acer ukurunduense caudatum 10
12
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Expert comment                                         
 
      
Author                                         
Thunb.
                                                                                 
Botanical References                                         
1158200
                                                                                 
Links / References                                         
For a list of references used on this page please go here
Readers comment                                         
 
Elizabeth H.
David Beaulieu Tue Jan 10 2006

Japanese Maple Trees Information for homeowners about growing Japanese maple trees.

Elizabeth H.
John geraghty Wed Jan 25 2006

The Bodwen Nursery describes a wide range of cultivars

Elizabeth H.
guy Maillot Mon Jan 1 2007
The best book on time for japanese maple : BOOK FOR MAPLES Y MASAYOSHI 400 pages full color photography.

maillot erable more than 700 japanese maple cultivars on line

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Subject : Acer palmatum  
             
                                        
                                                                                 
                                                                                 
   
 

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