Mature Black Walnut Tree Juglans Nigra Options
100-150cm: 5-7L Pot. 2-3 years old. Usually Half Standard or Feathered form.
140-180cm: 7-12L pot, 2-4 years old.
Girth 16-18cm: Standard,90L pot, *Roughly 480-500cm tall.
Girth 18-20cm: Standard,90-110L pot, *Roughly 500-520cm tall
Girth 20-25cm: Standard, 120-150L pot, *Roughly 520-540cm tall
(RB)Girth 8-10cm: Standard, rootball, buy Nov to Mar only. *Roughly 240-300cm tall.
(RB)Girth 10-12cm: Standard, rootball, buy Nov to Mar only. *Roughly 300-360cm tall.
(RB)Girth 12-14cm: Standard, rootball, buy Nov to Mar only. *Roughly 360-420cm tall.
(RB)Girth 14-16cm: Standard, rootball, buy Nov to Mar only. *Roughly 420-480cm tall.
(RB)Girth 16-18cm: Standard, rootball, buy Nov to Mar only. *Roughly 480-500cm tall.
(RB)Girth 18-20cm: Standard, rootball, buy Nov to Mar only. *Roughly 500-520cm tall.
(RB)Girth 20-25cm: Standard, rootball, buy Nov to Mar only. *Roughly 520-540cm tall.
*Heights 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.
Once a mature Black Walnut Tree Juglans Nigra is over 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 (roughly 12-18months growth), 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.
Rootball means it will not come in a pot but will have the roots wrapped which you need to remove before planting and are available for delivery only between November and March. If listed in a pot, they are available to purchase and plant all year round.
Standard and Half Standard means lollipop shape. There is a more clear stem with a Standard.
Mature Black Walnut Tree Juglans Nigra
The Black Walnut (Juglans nigra) hails from the eastern regions of North America. Relatively rare in Britain, it is an extremely impressive fast-growing tree. This is a large tree with a broadly pyramid-type form, and given that its final height is 20m (66ft 8in), it is a tree well-suited to a large garden. Black Walnut produces a good crop of walnuts in a season. Also of note is the pleasant aroma of the crushed foliage.
Message card included at no additional cost if required.
If you are looking for more than one tree e.g. setting up an orchard then take a peek at WHOLESALE WALNUT TREES where you will receive large discounts for bulk purchases.
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 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.