Acer palmatum var. dissectum atropurpureum 'Toyama-nishiki'
Purple-leaved threadleaf Japanese maple 'Toyama-nishiki'
Acer Acer
'Toyama-nishiki' _ 'Toyama-nishiki' is a very slow-growing tree or shrub forming a compact dome of deeply cut leaves that are burgundy red in spring. Its size makes it suitable for a small gardens or for growing in a large container.
Acer palmatum var. dissectum atropurpureum 'Toyama-nishiki' is: Deciduous
Compact, Rounded
RHS AGM (Award of Garden Merit)
Purple, Red, Insignificant or absent in Summer
Dark-red in Spring; Green in Summer; Red in Autumn
Horse chestnut scale , Aphids Horse chestnut scale , Aphids
Tar spot , Honey fungus , Verticillium wilt Tar spot , Honey fungus , Verticillium wilt
Grafting, Softwood cuttings
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Acer palmatum var. dissectum atropurpureum 'Toyama-nishiki' (Purple-leaved threadleaf Japanese maple 'Toyama-nishiki') will reach a height of 2m and a spread of 3m after 10-20 years.
Containers, Low Maintenance, Cottage/Informal, City, Architectural, Rock, Foliage only, Woodland
Grow in moist but well-drained, acid or neutral soil. Foliage colour is best in part shade, although full sun can be tolerated. Leaf scorch can be caused by dry soil or excessive exposure to frost, sun or wind when leaves are young.
Chalky, Clay, Loamy, Sandy (will tolerate most soil types)
Well-drained, Moist but well-drained
Acid, Neutral
Partial Shade, Full Sun
South, East, West
Sheltered
Hardy (H4)
We do not currently have companion plants added for this plant.
Acer palmatum var. dissectum atropurpureum 'Toyama-nishiki'
Purple-leaved threadleaf Japanese maple 'Toyama-nishiki'
Acer Acer
'Toyama-nishiki' _ 'Toyama-nishiki' is a very slow-growing tree or shrub forming a compact dome of deeply cut leaves that are burgundy red in spring. Its size makes it suitable for a small gardens or for growing in a large container.
Deciduous
Compact, Rounded
RHS AGM (Award of Garden Merit)
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Purple, Red, Insignificant or absent in Summer
Dark-red in Spring; Green in Summer; Red in Autumn
Tar spot , Honey fungus , Verticillium wilt
Grafting, Softwood cuttings
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Acer palmatum var. dissectum atropurpureum 'Toyama-nishiki' (Purple-leaved threadleaf Japanese maple 'Toyama-nishiki') will reach a height of 2m and a spread of 3m after 10-20 years.
Containers, Low Maintenance, Cottage/Informal, City, Architectural, Rock, Foliage only, Woodland
Grow in moist but well-drained, acid or neutral soil. Foliage colour is best in part shade, although full sun can be tolerated. Leaf scorch can be caused by dry soil or excessive exposure to frost, sun or wind when leaves are young.
Chalky, Clay, Loamy, Sandy (will tolerate most soil types)
Well-drained, Moist but well-drained
Acid, Neutral
Partial Shade, Full Sun
South, East, West
Sheltered
Hardy (H4)
Zone 9, Zone 8, Zone 7, Zone 6
Acer palmatum var. dissectum atropurpureum 'Toyama-nishiki' (Purple-leaved threadleaf Japanese maple 'Toyama-nishiki')
Apple root knot nematode
Meloidogyne mali
Nematode
Unknown
3
4
UK (along with certain other European countries) received potentially infested trees in 1992; but these were destroyed at the end of the trial period and targeted surveillance has failed to find any trace of the nematode. Main impacts are on elm; apple and mulberry and industry should source such material carefully.
Acer palmatum var. dissectum atropurpureum 'Toyama-nishiki' (Purple-leaved threadleaf Japanese maple 'Toyama-nishiki')
Alfalfa dwarf; Anaheim disease; California vine disease; Dwarf disease of alfalfa; Dwarf disease of lucerne; Leaf scald of oleander; Leaf scald of plum; Leaf scorch; Phony disease of peach; Pierce's disease of grapevine; Variegated chlorosis of citrus
Xylella fastidiosa subsp. multiplex
Bacterium
Absent
3
4
A bacterial disease with a wide host range detected in Corsica. Although EU regulated; there remains some concern about the risk of introduction. This subspecies is known to be able to thrive in cooler climates. Should an outbreak occur; there would be a need for eradication action which would result in environmental and social impacts.
Acer palmatum var. dissectum atropurpureum 'Toyama-nishiki' (Purple-leaved threadleaf Japanese maple 'Toyama-nishiki')
Hylesia nigricans
Insect
Absent
2
4
South American moth which could be damaging to broadleaf species if introduced to the UK; as well as having human health impacts. The main pathway is likely to be goods (including non-plant material) imported from South America and awareness raising with the main industry sectors is recommended.
Our plants are under greater threat than ever before. There is increasing movement of plants and other material traded from an increasing variety of sources. This increases the chances of exotic pests arriving with imported goods and travellers, as well as by natural means. Shoot is working with Defra to help members to do their part in preventing the introduction and spread of invasive risks.
Traveling or importing plants? Please read "Don't risk it" advice here
Suspected outbreak? Click here for contact details to report to the relevant authority.
Date updated: 7th March 2019 For more information visit: https://planthealthportal.defra.gov.uk/
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This plant likes... | Garden match | |
Soil types: | Chalky, Clay, Loamy, Sandy (will tolerate most soil types) | Tell us... |
Soil drainage: | Well-drained, Moist but well-drained | Tell us... |
Soil pH: | Acid, Neutral | Tell us... |
Light: | Partial Shade, Full Sun | Tell us... |
Aspect: | South, East, West | Tell us... |
Exposure: | Sheltered | Tell us... |
Hardiness: | Hardy (H4) | Tell us... |
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