Acer calcaratum
Acer calcaratum, Chinese maple
Acer Acer
A.calcaratum - A.calcaratum is a small, tender, deciduous tree with bronze-green stems, green when young, bearing glossy, three-lobed, olive to dark green leaves, turning yellow, orange, or red in autumn, and, in spring, clusters of reddish-brown buds opening to white flowers followed by few, reddish-brown fruit.
Acer calcaratum is: Deciduous
Upright
White in Spring
Dark-green in Summer; Orange, Yellow, Red in Autumn
Aphids , Horse chestnut scale , Caterpillars Aphids , Horse chestnut scale , Caterpillars
Verticillium wilt , Coral spot , Honey fungus , Tar spot Verticillium wilt , Coral spot , Honey fungus , Tar spot
Pruning group 1. Prune in late autumn to midwinter only.
Soak seed for 2 days prior to sowing. Sow lightly on a peat-based seed sowing mix at 20C. Germination is erratic - germination occurs in 30-365+ days.
Seed, Softwood cuttings
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Acer calcaratum (Chinese maple) will reach a height of 7m and a spread of 5m after 10-20 years.
Architectural, City, Conservatory, Greenhouse, Indoor, Sub-Tropical
Grows best in sandy loam in a sheltered site in full sun or partial shade.
Loamy, Sandy
Moist but well-drained, Well-drained
Acid, Alkaline, Neutral
Partial Shade, Full Sun
North, South, East, West
Sheltered
Indoor heated (H1), Tender in frost (H3)
Acer calcaratum
Acer calcaratum, Chinese maple
Acer Acer
A.calcaratum - A.calcaratum is a small, tender, deciduous tree with bronze-green stems, green when young, bearing glossy, three-lobed, olive to dark green leaves, turning yellow, orange, or red in autumn, and, in spring, clusters of reddish-brown buds opening to white flowers followed by few, reddish-brown fruit.
Deciduous
Upright
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White in Spring
Dark-green in Summer; Orange, Yellow, Red in Autumn
Aphids , Horse chestnut scale , Caterpillars
Verticillium wilt , Coral spot , Honey fungus , Tar spot
Pruning group 1. Prune in late autumn to midwinter only.
Soak seed for 2 days prior to sowing. Sow lightly on a peat-based seed sowing mix at 20C. Germination is erratic - germination occurs in 30-365+ days.
Seed, Softwood cuttings
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Acer calcaratum (Chinese maple) will reach a height of 7m and a spread of 5m after 10-20 years.
Architectural, City, Conservatory, Greenhouse, Indoor, Sub-Tropical
Grows best in sandy loam in a sheltered site in full sun or partial shade.
Loamy, Sandy
Moist but well-drained, Well-drained
Acid, Alkaline, Neutral
Partial Shade, Full Sun
North, South, East, West
Sheltered
Indoor heated (H1), Tender in frost (H3)
Zone 10, Zone 9, Zone 8
Acer calcaratum (Chinese maple)
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 calcaratum (Chinese maple)
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 calcaratum (Chinese maple)
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: | Loamy, Sandy | Tell us... |
Soil drainage: | Moist but well-drained, Well-drained | Tell us... |
Soil pH: | Acid, Alkaline, Neutral | Tell us... |
Light: | Partial Shade, Full Sun | Tell us... |
Aspect: | North, South, East, West | Tell us... |
Exposure: | Sheltered | Tell us... |
Hardiness: | Indoor heated (H1), Tender in frost (H3) | Tell us... |
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