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Expert Advice on Growing Berberis thunbergii


Berberis thunbergii are deciduous (drop their leaves in winter) shrubs which provide not only highly coloured leaves in autumn but often berries which last well into winter. They range in size from half a metre to one and a half metres high and spread. They grow well in full sun or partial shade and are often used as a tough barrier hedge because of their vicious spines. They are often referred to as barberry bushes.

They originate from Japan and parts of Eastern Asia but are commonly grown in almost all countries around the world. For some odd reason they are rarely found in Australia.

Use the checklist below to decide if Berberis thunbergii the correct plant for you and your garden:

  • They grow to a maximum height / spread of 1.5m / 5ft although there are dwarf forms which rarely exceed 50cm high such as "Tiny Gold" and "Lutin Rouge".
     
  • The leaf colours vary according to the cultivar and variety. The regular Berberis thunbergii tend to have green leaves in spring and summer turning red / purple in autumn. The cultivar Berberis thunbergii f. atropurpurea has purple leaves at first which turn to red / darker purple in autumn.
     
  • The flowers are normally yellow and they appear in mid to late spring time lasting for about a month. Each flower is small but the overall appearance of a Berberis full flower is impressive.

  • They grow best in full sun but also tolerate partial shade very well. They can survive in most soil types but prefer a well drained moist soil for most of the time. They can survive drought conditions for short periods of time.
     
  • They grow well in almost all soil types but avoid highly acidic or alkaline ones.
     
  • Established plants require no attention other than an tidy up and a prune to keep them to shape and size if required.
     
  • They are hardy down to far lower temperatures than even the coldest parts of the UK will ever encounter, -20°C or lower is not a problem for Berberis thunbergii.
     
  • They can be grown in containers and some of the dwarf forms are ideally suited to this. "Lutin Rouge" is a variety we would thoroughly recommend for a medium sized pot plant.
     
  • They make an excellent impenetrable hedge. Hedges can be of varying heights if regularly pruned.
     
  • No specialist knowledge is required to grow them and they are rarely affected by pests or diseases.

A low level berberis hedge
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Berberis hedge

WHERE TO BUY BERBERIS


Many garden centres sell Berberis thunbergii especially from April to May when they are in flower. They are also commonly sold online. Click the picture below for buying Berberis online at our recommended supplier.

Top value Berberis plants

See lower down this article for a few varieties which we can recommend from personal experience but almost all varieties grow well in the UK so choice comes down to personal preferences.

Berberis grow very easily from semi-ripe cuttings taken in mid August to mid-September.

HOW TO PLANT BERBERIS


Follow the steps below to ensure your Berberis is planted correctly:
  • Choose a position in full sun or partial shade - Berberis are very adaptable shrubs for shade and full sun. They can be planted in almost all soil conditions except extremely acidic or alkaline conditions.
     
  • This is a strong growing plant in good conditions. Different varieties of Berberis grow to very different sizes so check the plant label for planting distances.
     
  • It can be planted all year long if the soil is not frozen and you can water well when conditions are dry. Mid March to April and mid September to October are the best times to plant.
     
  • Dig a hole twice the width of the rootball. Sprinkle in a handful of blood, fish and bone and work into the ground.
     
  • Place the plant into the hole, filling in with soil so that it is at the same depth as was in the pot. Fill around the rootball and firm the soil down gently but firmly. Water well to settle the surrounding ground around the rootball.

CARING FOR BERBERIS


When established a Berberis will look after itself. There is no need to feed them unless the ground is very low in nutrients. Neither is watering required except in severe drought.

They do appreciate a mulch of well-rotted organic matter applied in late spring. Anything from grass cuttings to well-rotted compost will do fine.

For younger plants up to two years old, water if conditions become dry. A twice yearly feed with blood, fish and bone in spring and autumn will help it to establish a good root system. Keep the area around the base of the plant free from weeds and grass. Clear leaves and other debris which falls around them. There are no common pests or diseases of this plant.

RECOMMENDED VARIETIES OF BERBERIS


The varieties below are our own personal favourites.

Berberis thunbergii f. atropurpurea 'Admiration'


Red-orange foliage with a yellow edge to each of the leaves. The foliage appears in early spring through too the first frosts and deepens throughout the year. It forms a very attractive and firm mound shape, often with small yellow flowers followed by purple-crimson berries in autumn.

Berberis thunbergii atropurpurea Admiration

This variety is almost maintenance free requiring only a five minute prune in spring top keep it in shape. It grows to a maximum height and spread of 50cm / 20ins making it ideal for small gardens or container growing. Click here to buy this variety online now from our recommended supplier.

Berberis thunbergii f. atropurpurea 'Dart's Red Lady'


Dart's Red Lady has three distinct colour phase throughout each season. When the the leaves form in spring they are red-purple. As summer approaches they turn to deep green and finally to bright red from early autumn to early winter. They also produce tiny flowers in spring and berries in autumn. The variety reaches a maximum size of 1.5m but can be kept smaller with regular pruning.

Berberis thunbergii 'Golden Torch'


The leaves are a beautiful shade of green for much of the time, with a pink flush to them autumn. The branches are upright and with an annual prune this shrub can fit into even small gardens. Eventual height if not pruned is 1.2m with a similar spread as the picture below shows.

Berberis thunbergii 'Golden Torch'
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Berberis thunbergii 'Golden Torch'

The flowers are not very noticeable however red berries appear in autumn. It does well in both full sun and partial shade.

Berberis thunbergii 'Lutin Rouge'


Only introduced in 2012, Lutin Rouge is our favourite small berberis. It was found in a garden in France by chance, the parents are unknown. Mature height is 50cm / 20in with a spread of about 60cm / 24in. The leaves first appear in early spring and last to late autumn, bright red, they bring a splash of colour far better than many flowering shrubs.

Lutin Rouge requires only an annual prune to keep it to shape. It is unusual amongst Berberis in that it doesn't produce any flowers or berries but the foliage more than makes up for that.

Berberis thunbergii Lutin Rouge

Click here to buy this variety online now from your GardenFocused recommended supplier.

GROWING BERBERIS IN CONTAINERS


The main need of berberis in containers is to water them so that the compost is kept moist but not water-logged. Rainwater collected from a water butt is the best source of water for hebes in containers.

From April to September a feed once every two months with a small handful of blood, fish and bone worked into the surface of the compost. In winter place the plants where they out of the wind and have some frost protection - against the wall of a heated house will do fine or in an unheated greenhouse.

BERBERIS SUMMARY


Below we list the key strengths and weaknesses of this shrub.
 
 
HARDY 5 star hardiness rating(to -15°C)
   
CLAY SOIL Yes 
SANDY SOIL  Yes 
   
DRY SOIL Yes
   
SHADE  Partial, full sun
   
EVERGREEN  No
   
EASY CARE 5 easy care rating 
SMALL GARDENS  Yes
   
POT / CONTAINER Yes
   
FLOWERING  4.5 star flowering rating(very colourful foliage)
   
FLOWER TIME Foliage April to November

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