Sorbus 'Joseph Rock' (Joseph Rock Mountain Ash) - 9L Pot

Code: TR02039L
Sorbus 'Joseph Rock' (Joseph Rock Mountain Ash) - 9L PotSorbus 'Joseph Rock' (Joseph Rock Mountain Ash) - 9L Pot
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Sorbus 'Joseph Rock' (Joseph Rock Mountain Ash) - 9L PotSorbus 'Joseph Rock' (Joseph Rock Mountain Ash) - 9L Pot
Sorbus 'Joseph Rock' (Joseph Rock Mountain Ash) - 9L Pot

The Sorbus Joseph Rock is a small yet visually striking upright tree with pinnate foliage that turns shades of vibrant red and purple in autumn. Corymbs of creamy white flowers appear in spring, shortly followed by vibrant yellow berries.

This deciduous tree requires little pruning and is tolerant of pollution. It's upright habit and small spread makes it a fine addition to any sized garden.

  • Comes in a: 9L polypot (not a rigid pot)
  • Approx. Height on Arrival: 130-150cm
  • Tree is approx 2 years old with a 4 year old rootstock
  • Flower Colour: White
  • Foliage Colour: Green in spring and summer, red/purple in autumn
  • Approx. Growth Height: 12m
  • Flowering Period: Spring
  • Growing Habit: Bushy
  • Hardiness: Fully hardy
  • Exposure: Sheltered, exposed
  • Rate of Growth: Max. height in 10 years
  • Scented: No
  • Wildlife friendly - attracts bees and other pollinating insects


  • Light Requirements: full sun, partial shade
  • Soil Requirements: acid, neutral, clay, loamy, sandy
  • Moisture: well-drained, moist but well-drained, moderately fertile

Optional Extras
  • 60g Empathy rootgrow™ Mycorrhizal Fungi
    Add +
  • 1L Grow Your Own Liquid Seaweed Fertiliser by Empathy™
    Add +
  • One Tree Stake and Tie Kit - 1.2m
    Add +
  • All-purpose Liquid Seaweed Stimulant by Empathy - 1L
    Add +
Selected items will be included with your purchase

See alternative Joseph Rock trees below:

Q:Does Height Really Matter?

A: Not As Much As You Might Think...
One stand out specification that customers often use to judge the value of a tree is the height. So should height directly correlate with the price of a tree? No, not necessarily.
To an extent the height of a tree can give you a good indication of its maturity but you must not forget: To grow a productive, well shaped, healthy tree you must prune it back regularly, especially when young.
Our trees often grow up to 2m in the fields before we prune them back and package them ready to send out. This pruning encourages the tree to grow more, stronger branches and ensures there is a good balance between the root size and top growth. This ensures that your tree puts energy into establishing a healthy root base instead of supporting top growth, providing a better foundation for your tree in the future.
So, in summary: Don’t let the extra 10/20cm you may find elsewhere sway you. You are likely to be paying extra for the delivery costs and, if you want a healthy tree in the long run, you’re going to have to chop it off anyway!

Caring and Maintenance

Water young trees regularly until roots are well established. Trim annually from mid to late summer. Apply some fertilizer in spring in order to promote healthy growth. Optionally, mulch in spring. Check tree ties regularly and loosen any if necessary to avoid rubbing of the stems.


  • Planting Distance: 8m

Suited to almost all well-drained and moderately fertile soils in either an exposed or sheltered location with either full sun or partial shade.
Before planting your tree, clean up all wandering weeds and keep a clean ring around the tree base. Water well during the first year until well established.

Autumn is the best season for planting trees, as the soil moisture and heat allow easier and faster root establishment and regeneration of damaged root systems.

This is an example of our polypot - note the fruit/ornamental trees we stock will vary in appearance according to species and season.
Customer Reviews
Rating: 5/5

"I love Rowans and this is a colourful example"

Reviewed Wednesday, 14 November 2018

Rating: 5/5

"Well packed, looked healthy - time will tell!"

Reviewed Monday, 5 November 2018

Rating: 5/5

"Beautiful and healthy tree. Husband loved it"

Reviewed Wednesday, 27 June 2018

Rating: 5/5

"Excellent tree, lovely shape and well packaged for delivery"

Reviewed Tuesday, 15 May 2018

Rating: 5/5

"I bought the tree for my daughters birthday. It has now been planted and we are both looking forward to see it in leaf. Thank you."

Reviewed Wednesday, 13 December 2017

Rating: 5/5

"Lovely tree"

Reviewed Monday, 10 April 2017

Rating: 5/5


Reviewed Tuesday, 18 October 2016

Rating: 5/5

"excellent size tree"

Reviewed Monday, 2 May 2016

Rating: 5/5

"I was a little wary of ordering a tree online since you can't choose the particular one that you prefer, but the tree that I was sent is lovely - a very good specimen and a well balanced shape. I would be happy to order from Primrose again."

Reviewed Friday, 17 October 2014

Rating: 5/5


Reviewed Tuesday, 17 December 2013

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