Yellow Berried Rowan Sorbus Joseph Rock

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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

Autumn Colour

Orange
Purple

Leaf Colour

Green

Foliage

Small leaves

Flower Colour

White

Flowering Month

May

Berries / Fruit Colour

Yellow

Uses

Screening
Garden Tree
Small garden Tree
City/Urban Sites

Scent

Scented Flowers

Season

Autumn

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 that for at least 3 years after planting your tree or hedge has a circle or strip one metre wide completely free of grass.

  1. Mulch mats are an effective way to stop grass and weeds, although they will require a careful eye to make sure they continue to work. After clearing the ground around the tree, firmly fit the mat by tucking the edges into the soil and put a thick layer of bark mulch on top of this. Be careful not to allow the woodchip to touch the stem as it can cause rot.
  2. Weed killer is very effective, however it is harmful to the environment. Organic weed killers usually do not kill roots. Weed killer needs to be applied each year for the first 3 years, preferably when the tree is dormant, or just once before applying a mulch mat.
  3. 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.

Are the delivery costs the same no matter how many plants I order?

Yes the delivery costs are the same no matter how many plants you have on your order. They are worked out based on your distance from our nursery and can be found here.

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