Woody > Acer > Acer saccharum > Acer saccharum 'Newton Sentry'
Acer saccharum
'Newton Sentry'
Origin: The Acer ‘Newton Sentry’ is the most up right of all the maples and has many short and stubby branches on the major branches which makes the tree look bushy and dense. At the entrance to the Newton Cemetery in Newton, Massachusetts this tree was discovered and was introduced in the year of 1885.
Mike's
Opinion
"
I like this tree because it has an interesting shape to it, with the long upright branches which gives a landscape some height without taking up a lot of space. Also, this tree has great fall colour and will stand out.
Michael Pascoe, NDP., ODH., CLT., MSc. (Plant Conservation)
"
| Family |
| Sapindaceae |
| Genus |
| Acer |
| Species |
| saccharum |
| Cultivar |
| 'Newton Sentry' |
| Category |
| Woody |
| Type |
| Tree (deciduous) |
| USDA Hardiness Zone |
| 3 - 8 |
| Canadian Hardiness Zone |
| 4b - 8b |
| RHS Hardiness Zone |
| H4 - H7 |
| Temperature (°C) |
| (-34) |
| Temperature (°F) |
| (-30) |
| Height |
| 15 - 20 m |
| Spread |
| 3 - 5 m |
Photographs
Description and Growing Information
Flowering Period
| General Description |
| There has been a lot of confusion with this tree when another upright maple was introduced called Monumentale. This cultivar of sugar maple grows very slowly and will grow 1ft in most soils each year. The tree is sensitive to heat and drought, which will turn the leaves brown along the edges, this is called Leaf scorch. The ‘Newton Sentry’ is a narrow tree with upright branches that grows 50 to 60’ and 10 to 15’ wide. The tree has many leaders and has to be maintained to keep its shape. Has green pale flowers in the spring and dark green leaves in the summer, which turns to a reddish orange colour in the fall. |
| Landscape |
| This tree would do well on a wide lawn, by a fence line, in parks (but not by a road) or just by itself as a specimen tree. This tree can’t be used by roads or anywhere the tree would get salt on it. |
| Cultivation |
| Grown in average to medium moisture, full sun to part shade and well-drained slightly acidic soil. Doesn’t like compacted soils, road salt and urban pollution. |
| Shape |
| This tree has a long column like shape, long upright branches with short stubby branches which makes the tree have a fuller appearance. The shape is very ununified and flares out some what at the top because of its multiple leaders which gives it a messy look to it. |
| Growth |
| Slow |
| ID Characteristic |
| The first characteristic is that the tree has a opposite leaf arrangement and that the leaf is a simple leaf with a palmate venation to it. The second characteristic is the branches. The branches grow upright and don’t droop at all but will need pruning to help structure of the tree. The third characteristic is the structure of the tree. The tree has long upright branches and have many leaders which makes the appearance look messy. |
| Pests |
| Aphids- These tiny bugs can infest maples and when the infestation is bad enough it can cause leaves to drop. Honey dew is another sign of a heavy infestation. These bugs can be controlled by spraying or by predatory insects like ladybugs. Leaf Scorch - The tree is very sensitive to heat and drought, which will turn the leaves brown along the edges. This happens when the roots of the tree can’t get enough water to the main part of the tree and so the leaves will slowly be sacrificed so the tree can try to save itself. Being more diligent in a watering schedule in heatwaves. |
| Habitat |
| Grown in average, moist, well- drained soils down south. |
| Bark/Stem Description |
| The bark is brown and not showy, and branches grow upright mostly and don’t droop down. |
| Flower/Leaf Bud Description |
| The leaf and flower bud are dark brown, medium sized, shiny look to it and will be in groups of two. |
| Leaf Description |
| The leaf arrangement is opposite from each other. The leaf itself is a simple, star-shaped and palmate venation leaf. Which is dark green in the summer and in the fall, they are reddish orange. |
| Flower Description |
| The Flowers blooms in the spring, are small, have a pale green colour and don’t have ornamental value. |
| Fruit Description |
| The fruit also have no ornamental value to it. The fruit is small, elongated, brown and dry to the touch. Animals likes to eat the fruit and there’s no litter problem for this tree. |
| Colour Description |
| Bark: Brown Leaves: Dark Green and turn red, yellow, and orange in the fall Fruit: Light brown Bloom: Pale yellowish- green |
| Texture Description |
| The texture of the bark is coarse but the overall look to the tree is soft. |
| Notable Specimens |
| There wasn’t much information on where these trees are planted. But I did find on in Burlington Waterdown Dundas Ontario, Canada. |
| Propagation |
| To propagate this tree cuttings will have to be taken and grown in a greenhouse, with a rooting hormone and heated benches. |
| Ethnobotanical Uses (Disclaimer) |
| The use of this plant hasn’t change from when it was first introduced until now. This tree is still used for wind brakes, specimen trees, and fence lines. |
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