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Yellow Berried Rowan Sorbus Joseph Rock

Description & features

British Grown - The British Grown logo denotes plants and trees that have been both propagated and grown in the UK. Read more

Select plant type

Bare root guide

Size and quantity

Photo
Size / Height
Price
Quantity
 
15L pot size / 1.75-2.75m
£60.00
30L pot size / 2.4-3.5m
£180.00

All prices include VAT

All prices include VAT

All prices include VAT

All prices include VAT

British Grown - The British Grown logo denotes plants and trees that have been both propagated and grown in the UK. Read more

Product description

SORBUS JOSEPH ROCK – Yellow-berried Rowan

Characteristics

There are many types of ornamental rowans, less common are the yellow berrying varieties of which Joseph Rock is the best. Upright at first and broadening with age this lovely garden tree provides the typical open nature of a rowan tree, casting light shade in the summer months. The ultimate height is approximately 8m (25ft). The late summer green leaves contrast nicely as a backdrop to the creamy-yellow berries, with the foliage turning a fiery orangey-red to dark purple in autumn producing a very colourful display. The berries remain on the tree after leaf fall as birds tend to prefer red and orange fruits. Bees and other insects are attracted to the white clusters of small flowers in spring.

Where to grow

Sorbus Joseph Rock prefers a sunny location in fertile, well-drained soil. This would make a good choice as a feature tree in the smaller garden or a colourful addition to the border in larger planting schemes.

Did you know?

Joseph Rock was an Austrian born botanist and amateur anthropologist who introduced a number of plants to Europe and America in the early 1900’s. He was reported as being an eccentric character, always carrying with him a canvas bathtub and silver cutlery on his many excursions across China.
 

Features

Mature height
Small - 5-10 metres
Spread
0-5 metres
Shape / habit
Round Headed
Conifer
Growth rate
Medium
Soil type
All soil types
Sun levels
Full sun
Partial shade
Difficulty / hard to grow
Medium
Evergreen / Deciduous
Deciduous
Season of interest
Autumn
Autumn colour
Orange
Purple
Leaf
Green
Foliage
Small leaves
Flower colour
White
Flowering month
May
Scent
Scented Flowers
Berries / fruit colour
Yellow
Uses
Screening
Garden Tree
Small garden Tree
City/Urban Sites

Features

Mature height
Small - 5-10 metres
Spread
0-5 metres
Shape / habit
Round Headed
Conifer
Growth rate
Medium
Soil type
All soil types
Sun levels
Full sun
Partial shade
Difficulty / hard to grow
Medium
Evergreen / Deciduous
Deciduous
Season of interest
Autumn
Autumn colour
Orange
Purple
Leaf
Green
Foliage
Small leaves
Flower colour
White
Flowering month
May
Scent
Scented Flowers
Berries / fruit colour
Yellow
Uses
Screening
Garden Tree
Small garden Tree
City/Urban Sites

Aftercare

For the continued healthy growth of your trees, shrubs or hedging it is vital that you follow the advice below.

Watering

The main reason that plants die within 12 months of having been planted is lack of water.  It is essential throughout the spring and summer, to give a heavy enough watering to enable the water to penetrate right down to the deepest root level of the tree.  In hot dry spells give the equivalent of 2 bucketfuls every three days.

Weed Control

One of the most common causes of lack of water is competition from grass.  When trees are first establishing, the grass roots would be at the same level as the tree roots and are far more efficient at taking up water and thus choke the tree.  It is vital for 3 years after planting that your tree or hedge has a circle or strip one  metre wide completely free of grass.  The way to eliminate grass in order of effectiveness is:

  1. Spray off the grass with a glyphosate based weed killer such as Roundup.  Apply each year for the first 3 years.  It is best applied when the tree is dormant as it is absorbed through green leaves and kills the plant off at the roots.
  2. Firmly fit a mulch mat around the base of the tree by tucking the edges into the soil and put a thick layer of bark mulch on top of this.  This can be done after the initial spraying with glyphosate and should avoid the need for further spraying.

Mowing or strimming is NOT an answer to the problem.  Each time you mow, the grass will grow back more vigorously and strimming invariably leads to lacerated trunks.

Staking

If trees are not correctly secured they will rock in the planting pit. Roots not firmly in contact with the soil are unable to take up moisture and nutrients, resulting in die back or death of the tree.  Check, particularly after windy weather, that stakes are still solidly in the ground keeping the base of the trunk firm.  The purpose of the stakes is to anchor the roots.   Flexing in the wind, higher up the trunk, is not necessarily a problem if the roots are firm.

Bellow is list of the correct system to use to secure your trees.

  • 40/60, 60/80, 80/100 whips - Unless rabbit/deer problem no need to stake.
  • 100/125, 125/150  1.2m Cane and Easi tie.
  • 150/175  1.2m square stake and a buckle tie and spacer.
  • 175/250, 6/8, 8/10 15L 1.65 Tree stake and a buckle tie and spacer.
  • All larger trees. 2 x 1.65 Tree stake and cross rail with 38mm cushion spacer and 1m of 38mm strapping.

Ties

Always use our recommended tree ties or strapping.  These are designed and manufactured with the correct amount of give to hold the tree firm without strangling it. They should be checked at the end of each growing season for adjustment as the trunk thickens.  Non proprietary materials such as baler twine will cut into the bark and should not be used.

Protection from Animal Damage

Rabbits, deer, sheep, cattle and horses can all potentially damage trees.  Ask us for advice on the most appropriate guards for your trees or hedge.  Squirrels are also a terrible pest when trees get to about 20ft tall but there is no protection available.


Comments

By Brenda Mostyn on 10/04/2014

Thank you for your info.  Mosty useful.  I hate to see trees bought and then die because people do not know how to look after them.  Your short instructions for Whitebeam and Sorbus Joseph Rock have been very helpful.  Thank you

By Cherril Castle on 24/01/2015

Would Joseph Rock be suitable to be planted in our high street. Can the roots be restrictrd by planting surrounded by a membrane(to avoid drains etc)? I have one in my garden and after 15 yrs it is still quite upright with a spread of about 4 mtrs. Is this typical. How long before it reaches its full height?

By Simon on 29/01/2015

Hello Cherril,

Sorbus are not a perceptually invasive tree so I am sure that it would be OK for street planting. Yes I would have said the one in your garden is typical of the Sorbus Joseph Rock. the amount of time before a tree reaches its full height is very dependent on conditions but I would say at 15 it still has some growing to do.

By Jo on 14/09/2016

I planted a Sorbus Joseph Rock about 20 years ago, and up until 3 years ago it provided spectacular autumn colour. It continues to flower and berry well, but the leaves now dry up and fall in September.

By Simon on 21/09/2016

Hello Jo,

What a shame the leaves are falling so early on your Joseph Rock rowan. It is possible that the early leaf drop is just due to weather conditions, especially dryness in the soil, but there could be another reason. Are there any other clues to help pinpoint the cause? For example, are there signs of insect infestation in the leaves, or brown leaf spots? I would also check for any cracking or oozing on the bark, which could point to a canker or fungal infection. Depending on the cause, there may or may not be a remedy, I’m afraid. Rowans aren’t terribly long lived trees, so if you find it is dying, you may want to think about replacing it.

By Jo on 29/09/2016

Thank you for your response, Simon. There are certainly brown, rusty-looking spots on the leaves before they fall, but I haven’t been able to spot any sign of insect infestation -nor any sign of oozing or cracking on the bark. I did wonder about dry weather, but thought the tree too mature to be unable to get sufficient water - but perhaps not. I think I will give it another year anyway before deciding on anything too drastic, and maybe give it a good few buckets of water if we should have a long, dry spell next summer. Any further comments welcome.

By Alice on 13/04/2020

Hi there at present we have a turf filled garden and are looking to design a planting scheme that brings colour, wildlife and interest to the garden. We do not want enormous trees but looking for something medium sized that wildlife love. Would you recommend this particular tree? Thank you so much
Alice

By Simon on 13/04/2020

Hello Alice,

yes this Rowan sounds like a really good choice for you as it is more compact than other rowans, but just as good for wildlife. Other small trees to consider would be Crab Apples, Amelanchier and Hawthorn.

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