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Acer palmatum ‘Twombly’s Red Sentinel’ (Japanese Maple)

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Perfect for small gardens, Acer palmatum ‘Twombly’s Red Sentinel’ (Japanese Maple) is a dense, upright, columnar shrub or small tree with changing foliage, season after season. Emerging bright red in spring, the delicate foliage of palmate, 5-7 slender tipped lobed leaves gradually changes to purple-red or reddish green as the season progresses before turning brilliant red with orange hues in the fall. The unique narrow shape of this Japanese Maple selection makes it perfect in situations where space is limited.

  • Grows up to 10-15 ft. tall (300-450 cm) and 7-8 ft. wide (210-240 cm).
  • A full sun or part shade lover, this plant is easily grown in moist, organically rich, slightly acidic, well-drained soils. Mulch helps retain soil moisture and keep roots cool. Best leaf color in partial shade, although full sun can be tolerated. A lack of soil moisture or excessive exposure can cause leaf scorch.
  • Perfect as a specimen plant in cottage gardens, city gardens, or Japanese gardens and containers.
  • Low maintenance, this plant needs little pruning. If pruning is necessary, prune during the dormant season and avoid pruning in spring when the sap is running. Fertilize in spring before the leaves emerge.
  • It may be affected by horse chestnut scale, aphids, and verticillium wilt.
  • Propagate by grafting or softwood cuttings.
  • Acer palmatum is native to Japan, Korea, China, eastern Mongolia, and southeast Russia.

Requirements

Hardiness 5 - 9
Heat Zones 2 - 8
Climate Zones 2, 2B, 3, 3A, 3B, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, A3
Plant Type Shrubs, Trees
Plant Family Sapindaceae
Genus Acer
Common names Maple, Japanese Maple
Exposure Full Sun, Partial Sun
Season of Interest Spring (Early, Mid, Late)
Summer (Early, Mid, Late)
Fall
Height 10' - 15'
(3m - 4.6m)
Spread 7' - 8'
(210cm - 240cm)
Spacing 84" - 96"
(210cm - 240cm)
Maintenance Low
Water Needs Average
Soil Type Chalk, Clay, Loam, Sand
Soil pH Acid, Neutral
Soil Drainage Moist but Well-Drained
Characteristics Showy
Tolerance Rabbit
Garden Uses Beds And Borders, Patio And Containers, Small Gardens
Garden Styles City and Courtyard, Traditional Garden, Japanese Garden, Informal and Cottage
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Alternative Plants to Consider

Acer palmatum ‘Fireglow’ (Japanese Maple)
Acer palmatum ‘Ariadne’ (Japanese Maple)
Acer palmatum ‘Sumi-Nagashi’ (Japanese Maple)
Acer palmatum ‘Pixie’ (Japanese Maple)
Acer pseudoplatanus ‘Brilliantissimum’ (Sycamore Maple)
Acer ginnala (Amur Maple)

Recommended Companion Plants

Pachysandra terminalis ‘Green Carpet’ (Japanese Spurge)
Deschampsia cespitosa (Tufted Hair Grass)
Euphorbia polychroma (Cushion Spurge)
Leucojum vernum (Spring Snowflake)

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Native Plant Alternatives to Acer platanoides (Norway Maple)
Shrubs and Trees with Attractive Winter Bark
Best Companion Plants for Camellias
While every effort has been made to describe these plants accurately, please keep in mind that height, bloom time, and color may differ in various climates. The description of these plants has been written based on numerous outside resources.
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Requirements

Hardiness 5 - 9
Heat Zones 2 - 8
Climate Zones 2, 2B, 3, 3A, 3B, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, A3
Plant Type Shrubs, Trees
Plant Family Sapindaceae
Genus Acer
Common names Maple, Japanese Maple
Exposure Full Sun, Partial Sun
Season of Interest Spring (Early, Mid, Late)
Summer (Early, Mid, Late)
Fall
Height 10' - 15'
(3m - 4.6m)
Spread 7' - 8'
(210cm - 240cm)
Spacing 84" - 96"
(210cm - 240cm)
Maintenance Low
Water Needs Average
Soil Type Chalk, Clay, Loam, Sand
Soil pH Acid, Neutral
Soil Drainage Moist but Well-Drained
Characteristics Showy
Tolerance Rabbit
Garden Uses Beds And Borders, Patio And Containers, Small Gardens
Garden Styles City and Courtyard, Traditional Garden, Japanese Garden, Informal and Cottage
How Many Plants
Do I Need?
Explore Great Plant Combination Ideas
Acer (Maple)
Guides with
Acer (Maple)
Not sure which Acer (Maple) to pick?
Compare Now

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