Alder Hedge Plant Description
Alnus glutinosa (Alder) has many attractive aspects. It boasts long narrow male catkins in spring, tiny female woody cones that release seed in autumn, but can stay on the plant longer and sometimes for more than one season (giving it some interest in mid-winter). Alder is wildlife-friendly, particularly for caterpillars, butterflies and moths, as well as 90 insect species and small birds. However, Alder's greatest asset is its use near water and on impoverished soil. It grows best in moist or even wet soil and will tolerate prolonged periods of standing in water up to 30cm deep.
Another great hedging plant for wet soils is Willow (Salix). It has a dense, leafy canopy and the autumn leaf fall builds up the humus content of poor soil. To see our full range of hedging that is good in wet soils, take a look at our Choosing The Right Species page.This page is also designed to help you choose the right hedge for your garden and has suggestions and alternatives for every wish list or requirement.
Alnus glutinosa is good at fixing atmospheric nitrogen not only ofr its use but it also makes nitrogen available to other plants growing nearby. You can plant Alder as a single species hedge, or combine with other native species and allow them to receive the atmospheric benefits which Alnus glutinosa provides. It is good in all soils other than very alkaline, and in sun or semi-shade and particularly good in coastal positions. Due to its fast growth rate when young, it can be used to form an effective windbreak to protect other plants. Although deciduous, Alder keeps its leaves quite late, often into November.
If you still need help to decide which hedge is right for you, we'd recommend that you visit our Choosing the Right Species page which has suggestions and alternatives for every wish list or requirement.
Youll see our recommended planting densities for each size and root type listed in the product grid. We suggest that you use these as a guide, taking into consideration how long youre willing to wait to see your finished hedge. As a rough indication bare roots can be planted at anything from 3 to 7 per metre and cell grown between 4 and 6 - the higher densities here would need to be planted in a double staggered row or zig-zag.
For more information on planting distances please see our planting density advice section.
General hedge trimming of Alder should be done in late autumn. It is important to prune Alder at the right time, so as not to remove new growing shoots. Unusually, although deciduous, Alder is actually starting to develop new growth through the latter part of the winter months (even though you can't visibly see it) when other deciduous plants are still dormant and so unlike other deciduous species for which pruning is ideal at this time, Alder needs trimming a little earlier in the year.
Pruning in late autumn when the plant has stopped growing will also prevent sap bleeding which can happen if the plant is still in a growth phase. This has a tendency to attract bugs which may bring disease so should be avoided to ensure you keep plants healthy.
is available on all orders providing they meet the minimum spend criteria for the size of box or pallet. Pallet deliveries and large box deliveries for tall plants are indicated by icons on the product table listings. Delivery costs and minimum order details for each packaging type are as follows:
|Packaging Type||Standard Delivery Charge||Minimum Order Values (incl VAT) for FREE Delivery|
|Small Box (Bare Roots up to 1.2m)||£12 delivery charge (orders up to £60 incl VAT) ||Orders of £60 and over - FREE|
|Box (Pots up to and incl. 7.5L)||£12 delivery charge (orders up to £100 incl VAT) ||Orders of £100 and over - FREE|
|Large/Tall Box (Tall bare roots 1.2m +)||£18 delivery charge (orders up to £120 incl VAT)||Orders of £120 and over - FREE|
|Pallet (Root balls, large pots, trees etc)||£60 delivery charge (orders up to £240 incl VAT)||Orders of £240 and over - FREE|
There are some exceptions to the standard delivery pricing structure, which relate to deliveries to more remote areas, overseas, or extremely tall plants requiring specialist delivery - for more information see the Delivery Information Page It's Quick!
- most orders are despatched within 3-5 working days!! (Some trees can be 7-10 days see product pages for info.)Next Day Delivery is Available
- We can offer next day delivery on eligible species and sizes for an additional £12 incl VAT. Call 01257 263 873
to find out if your order is eligible.It's Convenient
- no need to wait in all day to sign, we don't need a signature (the odd, larger order may require a signature but will be delivered at a mutually agreeable time)It's Tried & Tested
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* Please note that delivery costs are based on the final order amount in your cart after
any discounts have been applied.
Hedges Direct 12 Month Plant Guarantee
Our plants are guaranteed for 12 months after delivery subject to specific criteria. Visit our Hedges Direct Plant Guarantee Page
for full details.