Tuesday, 4 September 2012

Leylandii hedging


Cupressocyparis - leylandii -  are evergreen, quick growing conifers. They respond well to being trimmed as long as trimming is confined to the young growth. as regrowth is unlikely if the plant is cut back into the old wood. Leylandii form a dense living hedge which is ideal for providing privacy or screening off unsightly areas. A leylandii hedge makes a great addition to any garden - increasing security, reducing noise and filtering out pollution.

By trimming your leylandii every year you can control it's growth, keeping it at the preferred width and height. 



Planting Leylandii

Planting a leylandii hedge is a fairly simple job but it is important to get it right. This will give your Leylandii the best start in their new home - where they can live for over 150 years.


  • To plant your leylandii you first need to rid the ground of any weeds, you can do this by using a weed killer such as Roundup (this is glyphosate based and, once dried has no effect on the leylandii.)
  • Dig a hole to about twice the width of the plants rootball and deep enough for the top of the rootball to sit just below the surface of the ground.
  • Using a fork, break up the soil at the bottom of the hole - this will allow the roots to penetrate the earth with ease and will allow any excess water to drain.
  • If your soil is poor you can add compost to the soil. Mix the compost in with the soil from the hole. (I would recommend adding the same amount of compost as the size of the pot. ie. if the leylandii came in a 15 litre pot, add 15 litres of compost.)
  • If your leylandii are over 4 feet high and they are not in a sheltered location, I would recommend staking them as this will stop the plants from rocking in the wind, causing the roots to break. It is recommended to stake the plants to about 40 cm from the ground with the stake at a 45 degree angle to the ground. Tie the tree to the stake with a tree tie and remove the stake after 12 months.




Maintenance of Leylandii

Leylandii can grow up to three feet a year so they need to be trimmed to keep them under control. It is advisable to trim the tree  once a year (trimming more than this can damage the leylandii and leaves the plant more susceptible to disease) in Spring or Summer. This gives the Leylandii the chance to recover before the colder Winter months.
To trim your hedge, all you need is a good pair of secateurs. Trim the tree to the desired height and then remove any dead or broken branches.


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