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Weeping Scotch Laburnum Laburnum alpinium pendulum

Description & features

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Product description

LABURNUM ALPINIUM PENDULUM – Weeping Scotch Laburnum

Characteristics

This is a weeping form of the Scotch Laburnum.  Scotch Laburnum has been present in the UK for about 300 years and is not from Scotland, but the Southern Alps.  This form is grafted onto a stem to create a weeping very small tree.

The very long chains of yellow flowers are 30cm (12’’) in length and make a stunning display in May.

Where to grow

Good as a specimen tree for a sunny position with a well-drained soil.  Laburnums do not like permanently wet, very heavy or waterlogged soils.

Did you know?

First recorded at the famous Loddiges nursery in Hackney in the early 19th century.

 

 

Features

Mature height
Very Small up to 5 metres
Spread
0-5 metres
Shape / habit
Weeping
Growth rate
Medium
Soil type
All soil types
Sun levels
Full sun
Difficulty / hard to grow
Medium
Evergreen / Deciduous
Deciduous
Season of interest
Spring
Leaf
Green
Foliage
Cut leaf
Small leaves
Flower colour
Yellow
Flowering month
May
Uses
Garden Tree
Small garden Tree
City/Urban Sites
Flower Arranging
Suitable for Containers
Suitable for Patio

Features

Mature height
Very Small up to 5 metres
Spread
0-5 metres
Shape / habit
Weeping
Growth rate
Medium
Soil type
All soil types
Sun levels
Full sun
Difficulty / hard to grow
Medium
Evergreen / Deciduous
Deciduous
Season of interest
Spring
Leaf
Green
Foliage
Cut leaf
Small leaves
Flower colour
Yellow
Flowering month
May
Uses
Garden Tree
Small garden Tree
City/Urban Sites
Flower Arranging
Suitable for Containers
Suitable for Patio

Aftercare

Pruning Laburnum alpinium Pendulum

Laburnum alpinium Pendulum, with its chains of yellow flowers, looks wonderful as a specimen tree and also trained over a framework. When training on a framework, tie shoots early in the season as this is when they are at their most flexible.

To grow as a tree, train as a central leader and clear the stem to around 1.5 metres as this will accommodate for the weeping branches and hanging flowers. Once established, do not prune into old wood. Removing some of the current year’s shoots at the end of the season will encourage new flowering shoots.

What time of year should I prune? Prune between late summer and mid-winter. 

 

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.


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