A beautiful feature tree, this Purple Norway Maple has dark crimson foliage which covers the upright branches. This columnar tree is ideal for small gardens as it will grow to just 6 x 2 metres in 20 years. This ornamental tree is not only popular for its narrow form, but also the beautiful foliage which turns from dark-red to purple in the summer and then to red again in the autumn. Acer Crimson Sentry truly lives up to its name, standing proudly and boldly upright, as if guarding the surrounding area.
This Norway maple tree would make a lovely feature at an entrance or gateway. Ideal for tough positions, Acer platanoides Crimson Sentry is tolerant of pollution and will do well in most soils. Exposed coastal positions are no problem for this handsome small to medium sized tree.
AKA Purple Norway maple, Acer platanoides Crimson Sentry, Upright norway maple, Columnar maple tree, Norway Maple Crimson Sentry
When planting Purple Norway Maple trees, such as the Acer Platanoides Crimson Sentry tree, it is important to prepare the planting area well. Pot grown Norway maple trees can be planted at any time of the year. You will need to carry out the following to prepare your planting site.
Firstly, remove all weeds and grass within a metre of your desired planting hole then dig a hole as deep as your root mass and approximately 2x as wide. We recommend digging a square hole as this encourages the roots to grow straight as opposed to around inside the hole. To help your tree establish more effectively, we advise applying root grow (sprinkle in the hole for pot grown trees), especially if you have poor soil.
You do not need to amend the soil with compost when planting a Norway maple tree, simply fill in the hole and firm around gently. Make sure not to bank the soil up around the collar of the tree as this can cause problems. When planting Norway maple trees, you should use ericaceous compost when possible as this encourages vibrant foliage colour. To see how to use a tree stake and tie, watch our informational how to videos.
If you’re planting in dry weather, water well and regularly for the first few months. The same goes for spring and summer planting. Make sure to keep an eye on your young tree and increase watering if there are extended periods of hot or dry weather. If you’re planting in autumn, you may only need to water your tree a little. If possible, use rain water instead of tap water as this is more acidic and better for foliage colour. We also stock a range of irrigation kits, suitable for a variety of planting schemes.
Once planted, it is important to keep the area free of competing weeds for the first couple of growing seasons. Using a glyphosate based weed killer or installing mulch matting and bark chips will aid in this. Only shade loving plants will grow beneath Norway maple trees. If you wish to cover the area, decorative bark is the best option. If you know your area is prone to rabbits, we would advise using a rabbit guard.
Pruning should be carried out in the dormant season, from November to March. Norway Maple trees bleed during other times of the year so pruning can weaken the tree. However, Norway Maple trees very rarely need pruning. The natural shape is normally the most attractive and pruning should be carried out with a less is more approach. Only remove, crossing, damaged or diseased branches.
Most deliveries are made within a week of placing the order. All trees are carefully packed by our experienced team, with many despatched to our tried and tested couriers within 24 hours (please allow up to 10 days). There's no need to be in to receive your trees and you can request where they are left via the checkout.
There is a slightly longer timescale on pleached and mature trees (trees over 2.5m in height) because we group orders together by geographic area for specialist delivery - we will contact these customers to notify them of the delivery date and whether the delivery driver needs assistance.
Gift trees and those required by a specific date can be accommodated with pleasure, although we accept no legal responsibility for late deliveries.
Our nursery is a busy despatch centre, so please make an appointment to collect or view trees. For collections, despatch charges will be refunded.
1 small tree (most trees with a height under 1.5 metres) : £7.95 + vat
1 medium tree (most trees 1.5-2 metres in height) or 2-4 small trees: £9.95 + vat
2+ medium trees or 5+ small trees: £12.95 + vat
1-4 large trees (trees too large to fit in a box): £19.95 + vat
Mature, pleached or 5+ large trees: Cost is calculated in the checkout process and varies by postcode. You can buy additional trees with no increase in delivery cost.
The above prices exclude the Scottish Highlands, where delivery starts from £24.95 + vat and is calculated in the checkout process.
Our courier charges are not viable for just one or two trees, but if you have a larger requirement then please do speak to us to see if we can find a solution.
Below are definitions of various forms, which refer to the shape of the tree defined by the pruning it has received. For more advice, please contact us.
Single Stem / Pruned and shaped: Classic shaped tree with a single stem that has had pruning to help create a beautiful, natural shape.
Top grafted: A height noted next to this form refers to the length of clear stem, which will not grow taller. Only the head of branches will develop. Top grafted trees do not require complicated pruning and are ideal for small spaces.
Multi Stem: A multi stem tree is has two or more stems arising from or near ground level, growing from one root system. Take care to buy a true multi-stem like all ours and not those that are 3 saplings in a pot to cheaply imitate them.
Feathered: A feathered tree has branches from the bottom of the trunk all the way up. These branches can be removed if a clear stem is required.
Bush: A plant with many stems low down, rather than one clear stem.
Climber: A plant that is a natural climber and will be delivered usually running up a bamboo cane, ready to position in the garden.
Standard Tree: A more mature tree with an upright clear stem of approximately 1.8m-2.0m (measured from the soil to the lowest branch), which supports a branched crown. Standards are available in different forms relating to their girth size (circumference of the stem measured 1m above soil level), not height.
Standard either 6-10cm or 8-10cm girth, approximately 2.5-3.0m in height
Premium Standard 10-12cm girth, approximately 3.0-3.5m in height
Heavy Standard 12-14cm girth, approximately 3.5-4.5m in height
Extra Heavy Standard 14-16cm girth approximately 4.0-6m in height
The table below gives sizes and forms available for this variety, along with photos you can enlarge (these are only a guideline as all plants are unique so vary).
|Plant Specification||Form||Supplied Size||Root type||Price||Quantity Qty|
|Pruned & Shaped Tree||150-200cm||10L pot||£44.99 (ex VAT) Was £49.99 (ex VAT)|
|Standard Tree, 8-10cm girth||approx 2.5-3.0m||28L pot||£159.99 (ex VAT)|
|Premium Standard Tree, 10-12cm girth||approx 3.0-3.5m||45L pot||£169.99 (ex VAT)|
|Heavy Standard Tree, 12-14cm girth||approx 3.5-4.5m||45L pot||£189.99 (ex VAT)|