Acer saccharum 'Newton Sentry' Columnar sugar maple

Aceraceae

Acer saccharum 'Newton Sentry' Columnar sugar maple

Medium-sized tree with a conspicuously slender, columnar shaped crown that is retained even in later life. Very short, projecting side branches grow from one or more vertically growing central leaderes. The leaf is slightly smaller than typical for the species and has a somewhat leathery feel. In the past there was some confusion with A. saccharum ´Temple´s Upright´. It is now clear that ‘Newton Sentry’ is the narrower of the two. It is even the narrowest of all the maples. In 1994 the original tree at Newton Cemetery in Newton, USA, was 15 m tall and only 4 m wide. Though the sugar maple thrives in many soils, a soil that is too wet is unsuitable for healthy growth. The tree cannot tolerate stagnant water and is sensitive to road salt. Poor tolerance to paved surfaces.

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Specifications
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Height
10 (15) m
Width
3-4m
Crown
narrow columnar, half-open crown
Bark and branches
grey bark, greenish brown branches
Leaf
3/5 lobes, fresh green, 7 - 13 cm
Autumn colour
orange, red
Flowers
greenish yellow, inconspicuous, march
Fruits
winged nutlets, 4 - 5 cm long
Spines/thorns
None
Toxicity
usually not toxic to people, (large) pets and livestock
Soil type
hardly any soil requirements, not too moist
Paving
tolerates no paving
Winter hardiness zone
4 (-34,4 to -28,9 °C)
Wind resistance
moderate to poor
Other resistances
resistant to frost (WH 1 - 6)
Application
avenues and broad streets, narrow streets
Shape
clearstem tree
Origin
Harkness Rochester, New York, USA, ca 1954
Synonyms
Acer saccharum var. columnare, Acer saccharum 'Columnar Sugar'
Clear stem tree clay soil loamy soil nutrient-poor soil peaty soil sandy soil tolerates no paving resistant to frost (WH 1 - 6) columnar 2nd size, between 6 and 12 metres half-open crown green yellowgreen average growing Attractive autumn colour non-toxic (usually)
Frequently asked questions
Acer saccharum 'Newton Sentry'

Acer saccharum 'Newton Sentry' can eventually reach a height of 10 (15) m, depending on the site and climate conditions.

Acer saccharum 'Newton Sentry' is average growing and can eventually reach a height of 10 (15) m, depending on the site and climate conditions.

The leaves of Acer saccharum 'Newton Sentry' turn orange, red in autumn.

The right time to plant Acer saccharum 'Newton Sentry' is during the dormancy period. In Western Europe, Acer saccharum 'Newton Sentry' with root balls can generally be planted from mid-November to late April, although this depends strongly on the climatic conditions and the species of tree.

Acer saccharum 'Newton Sentry' blooms in march.
General