Cut Leaved Alder foliage on 'Imperialis'

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Alnus glutinosa 'Imperialis' Tree

Cut Leaved Alder Trees

From £71

From £71 ~~£75~~

Available As:

Mature standard tree

1.8m-2.0m clear stem with a branched crown on top

Single stem tree

Classic tree with one trunk

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Multiple Sizes Available Tree Stake & Tie Kit

From £10

From £10 ~~£10~~

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For Trees Over 2.5m Height Now Large Tree Stake & Tie Kit

£20

£20 ~~£20~~

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Friendly Mycorrhizal Fungi Rootgrow

From £3.60

From £3.60 ~~£3.60~~

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Multiple Sizes Available Tree Irrigation Kit

From £11

From £11 ~~£11~~

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All Purpose Compost Miracle-Gro® Peat Free Premium All Purpose Compost

£6

£6 £6

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Product Details

Planting & Care

Delivery Information

Key features

Awards RHS Award of Garden Merit

Final size 6 x 4 metres in 20 years

Foliage Green feathery leaves turns yellow in Autumn

Soil Wet-tolerant

Description

Alnus glutinosa 'Imperialis', commonly known as the Cut Leaved Alder tree makes a beautiful, slender tree with finely cut, feathery green foliage. The foliage is a wonderful feature giving the tree a slightly oriental appearance. Catkins appear in spring and false cones follow, which are popular with the birds. Yellow autumn colours make this, the smaller of the Alnus varieties, a very attractive tree for smaller gardens.

Ideal for difficult sites, Alnus glutinosa 'Imperialis' thrives in wet conditions and is able to tolerate exposure. A height and spread of 6 x 4 metres can be expected in 20 years. An additional quality of Alder trees is that they host nitrogen fixing bacterium beneath the soil which improves the fertility of the soil.

AKA Cut Leaved Alder, Alnus glutinosa Imperialis

Planting Steps

1Preparation

Pot-grown plants can be planted at any time of year, whereas bare roots need to be planted between November and March.
Clear weeds and grass within a metre of the planting hole.
Dig a hole as deep as the root mass and twice as wide.
To help your plant establish more effectively, sprinkle Rootgrow in the hole.

2Planting

Gently loosen the roots and place into the planting hole.
Ensure the top of the plant's compost is flush with the level of the surrounding soil and the graft union or collar of the tree is above ground level.
Mix 50% of the original soil with 50% compost.
Fill in the hole, firming the soil gently.

3Last Steps

Water generously around the base of the plant.
If you are planting either a single stem tree or mature standard tree, we recommend adding a staking kit and rabbit guard.

Aftercare Advice

Trees and shrubs require a good watering regime for a couple of years whilst they establish. Water well and regularly through spring and summer, increasing in hot or dry weather. If planting in autumn, you may only need to water a little. It is advisable to keep the area free of competing weeds and grass during this period.

For more detailed advice and video guides, please visit our Help & Advice section.

	Small shrubs (1-3)	Young trees & 4+ small shrubs	Select semi-mature trees & shrubs (1-4)	All other mature trees (any quantity)
Mainland UK ex. Scottish Highlands	£10	£12	£35	from £55
Scottish Highlands & the Islands	From £30
Outside Mainland UK	Currently we are unable to deliver outside of Mainland UK

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