Acer Palmatum ‘Twombly’s Red Sentinel’ (Twombly’s Red Sentinel Japanese Maple)
Acer Palmatum ‘Twombly’s Red Sentinel’ (Twombly’s Red Sentinel Japanese Maple)
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Acer palmatum ‘Twombly’s Red Sentinel’ is a distinctive Japanese maple valued for its dense, upright and naturally columnar growth habit. Bright red new leaves emerge in spring before maturing to rich burgundy and purple-red tones through summer. In autumn, the foliage intensifies to brilliant scarlet-red, creating an impressive seasonal display even in gardens where planting space is limited.
Its narrow form makes it an excellent feature tree for courtyards, entrance gardens, pathways, containers and compact landscapes. This elegant cultivar delivers the rich foliage colour associated with larger red Japanese maples while occupying considerably less space. Easy to maintain and visually appealing across multiple seasons, it is an outstanding choice for customers wanting a refined vertical accent or dramatic specimen plant.

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Mature height
Approximately 2.5–4 metres
Mature width
Approximately 1.5–2.5 metres
Spacing
Approximately 2–2.5 metres apart, allowing sufficient room for the mature canopy to develop.
Evergreen/Deciduous
Deciduous
Foliage
Bright red spring foliage, burgundy to purple-red summer foliage and brilliant scarlet-red autumn colour.
Flowering Period & Fruit Development/Harvest
Small purplish-red flowers appear during spring, followed by decorative red winged seeds or samaras.
Sun tolerance
Full sun to partial shade
Maintenance
Low maintenance
Root System
Shallow, fibrous and generally non-invasive