For taller options and non-tree planting schemes Contact us stating species, height/girth and delivery postcode.
Cut Leaved Alder Alnus Glutinosa Imperialis Options Explained
100-150cm- 5-7L pot. 1-2 years old.
150-180cm : 7-12L pot, 2-3 years old, Half Standard.
180-240cm: 9-15L: pot, 2-4 years old, Half Standard.
Girth 12-14cm: Standard, *35L pot, around 180-200cm clear stem, *roughly 360-420cm tall.
Girth 14-16cm: Standard, *50-70L pot, around 180-200cm clear stem, *roughly 420-480cm tall.
*Heights/volumes are given as a very rough guideline and can have considerable variation based on species and supplier (each nursery experiences different growing conditions) It may even have been pruned before being sent out so we can only guarantee girth. Trees over 5.5m may include a delivery surcharge based on location and species but we will confirm with you before progressing the order.
Once a mature tree is around 200cm/4 years old then girth is the best measure of value for money. For every girth measurement increment e.g. 6-8cm to 8-10cm, the canopy will be wider, stronger, bushier and the root system larger as it has experienced 12-18 months growth. You can notice larger root systems with potted versions because the pot size increases with maturity. As a very general rule, each one cm girth measurement represents around 30cm growth but this doesn't apply to slow-growing trees.
Multistem means several stems starting very low to the ground. Comparing these with the same age Standard and Half Standard, these are typically shorter as growing several stems takes more effort than one stem and the girth measuring system does not apply.
Standard and Half Standard means lollipop shape. Industry definitions (which are not universal) mean Half Standard have around 80-150cm clear stem and Standard 180cm or more. Half Standards will usually be quite smaller than their standard equivalent girth size.
Feathered means it has an obvious single stem with side branching for most of it's length.
Cut Leaved Alder Alnus Glutinosa Imperialis
A very ornamental form of Alder (not the ornamental sense that you could put it on the mantle piece next to the cheap tat your Mother In-law got you last Christmas). It has fine and deeply cut leaves making it a great specimen tree. Used in parks and gardens for these very ornamental qualities and has a high resistance to urban pollution. It has been said that it gives an ornamental appearance but we don't think it looks anything like a Ninja.
Considered a fast-growing tree suitable for almost any soil except chalk and will perform well in damp or boggy sites. At the time of writing the Cut Leaved Alnus Glutinosa Imperialis held the RHS Award Of Garden Merit which basically means it performs very well compared to other Alder trees.
Alnus Glutinosa Imperialis has been used for making boats, clogs, gunpowder charcoal and treatments for rheumatism. So if you have ideas of building a navy and invading a wooden shoe-wearing country while waving muskets and winning the hearts and minds of those suffering inflamed joints, then this is the tree for you.
Feel free to severely prune to shape or promote new growth as it will shrug its branches and just grow more. Will tolerate full sun and shade positions with characteristics likely to attract wildlife.
Message card included at no additional cost if required. Just add the information required on the card at checkout.
See What Our Customers Are Saying About Our Cut Leaved Alnus Glutinosa Imperialis
Dear Alan, The alder (Cut Leaved Alder Alnus Glutinosa Imperialis) arrived in tip top condition, so thank you very much. Best wishes Rachel 0821
Just have to say thank you and a big wow for the trees ordered from your fantastic site. Great communication re order and many thanks for the elegant Alnus glutinosa - what a lovely surprise. The golden willow looks very much at home in our lower somewhat damp lower paddock. The packaging was amazing and am sure it is an art installation in its own right. Will be ordering again soon as we have a large shrubbery to plan. Cheers Chris 0815
Tree Jargon Explained
Half Standard: Around 80-100cm clear stem.
Standard: Around 180-200cm clear stem.
Feathered: Branches for most of the trunk/stem length.
Multi-Stem/Bush: Very little or no clear stem. Multiple branching starting low to the ground.
Rootball: Dug from the field with roots intact i.e. no pot.
Pot: Plastic container that the tree was grown in.
Maiden: 1 year tree that has not been pruned.
Pleached: Foliage a square/rectangle flat shape wired to a bamboo frame with some clear stem.
Screen: Same as pleached but much less/no clear stem.
Multiple Order Discount
Orders over £750 for 150cm+ trees might be discounted by ​​​​​​​contacting us
Ornamental Tree Roots In The Shade e.g. Behind A Fence
It is more important that that foliage (posh term for leaves) receives the sunlight than the roots. So if the canopy of your ornamental tree can sunbathe but the bottom of your tree thinks there has been a nuclear winter then that is ok. You might want to ensure you have good drainage as water and no sun is the start of algae and other such issues.
Early Autumn Leaf Fall
Heat stress, being potted, lack of water, being boxed up for a few days etc can cause early Autumn leaf fall. Once planted, normal service will resume next season.
Do I Need To Stake My Ornamental Tree?
9 out of 10 times the answer will be no, especially if under 200cm tall. However our article on Tree Staking should help guide you.
Climate Change
Climate Change has increased aesthetic foliage issues such as Powdery Mildew, Shothole, Rust, frost damage etc These are not terminal issues and will usually last a season or less. All trees are inspected before being sent out to ensure they are fundamentally healthy and will bounce back.
Planting In The Corner Of A Garden
Air and light is reduced in this location which could promote fungus and bacterial issues. If the corner is of the house and a fence then you also have leeching issues to contend with from cement and wood preservatives. Also when it rains, that area would experience higher water levels so we advise against it unless the plant is very hardy.
Mature Tree Warranty
Once a tree is over 3 years old, the failure rate is considerably less and our Tree Warranty does not cover it at 100%. Please check details.
Water Logged Conditions
Willow, Alder, Birch and Poplar may help lower the water level so long as you do not have permanent standing water e.g. your local diving and sailing club meets on your lawn.
