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Trimming leylandii.

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Trimming leylandii.

Postby Bluelungbutter » Fri Apr 03, 2009 9:19 pm

Hey guys. The leylandii hedge out the back has been left too long before being cut down to size. They are about 12-14 ft high and i want them down to around 6-7 ft. Have i left it too late to cut them down this year or can i do it now with no ill affect to them.

Cheers

DunK
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Re: Trimming leylandii.

Postby humperdingle » Fri Apr 03, 2009 10:13 pm

I'm in the same position. We planted some out the back around 15 years ago and they've grown way taller than what the blurb on the label said! They're easily 20ft tall, and are blocking light into a neighbour's house... Dreading them asking me to trim them!
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Re: Trimming leylandii.

Postby Born Again » Sat Apr 04, 2009 1:02 am

Birds will be nesting in them by now, maybe best to leave them until next winter.
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Re: Trimming leylandii.

Postby Oaken » Thu Apr 09, 2009 8:23 pm

Leylandii can be topped quite hard but if you cut the sides back beyond the green growth it is unlikely that they will grow back.
Good luck
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Re: Trimming leylandii.

Postby rossandjet » Thu Apr 09, 2009 8:52 pm

humperdingle wrote:I'm in the same position. We planted some out the back around 15 years ago and they've grown way taller than what the blurb on the label said! They're easily 20ft tall, and are blocking light into a neighbour's house... Dreading them asking me to trim them!


They are only shallow rooted trees and I bet you could pull them down with a rope onto your landy :thup:
Best bloody place for them too :kill: :kill:
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Re: Trimming leylandii.

Postby Greyhair » Sat Apr 11, 2009 8:31 am

Now is not a bad time to trim, (although BA's advice should be heeded regarding nesting birds).
You need to cut them down to about 18" - 2ft below where you want the ultimate height to be, as the lateral branches just below the cut, will in a short time turn upwards and become 'alternative' trunks.
These are then easier to keep under control and will form a less unsightly top to the hedge, but will need trimming themselves every year, --- without fail!
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Re: Trimming leylandii.

Postby Lumbago » Wed Jul 29, 2009 10:29 am

Been wondering if half ring-barking them or making cuts in the trunk might stunt their growth.
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Re: Trimming leylandii.

Postby basil46 » Wed Aug 26, 2009 10:35 pm

Bluelungbutter wrote:Hey guys. The leylandii hedge out the back has been left too long before being cut down to size. They are about 12-14 ft high and i want them down to around 6-7 ft. Have i left it too late to cut them down this year or can i do it now with no ill affect to them.

Cheers

DunK

Trim them hard................................................................................................. about six inches from the floor. :lol: :lol: :lol:
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Re: Trimming leylandii.

Postby Macca » Fri May 21, 2010 5:05 pm

Lumbago wrote:Been wondering if half ring-barking them or making cuts in the trunk might stunt their growth.


Getting at their bases with a cordless drill and a 1/2" spade bit and then squirting Glycol-phosphate down the conveniently placed hole certainly stops them in their tracks. What's more if you do it in the bit that's then hidden when you shove the dirt back means no ones any the wiser. Takes about 4 months for the " growth stunning" treatment to have worked its magic.
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Re: Trimming leylandii.

Postby shotgun sam » Sat May 22, 2010 2:19 pm

best thing you can do with then is take them OUT
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Re: Trimming leylandii.

Postby termin8r » Sat May 22, 2010 2:51 pm

shotgun sam wrote:best thing you can do with then is take them OUT


What calibre would you recommend? :lol:

Doug 8-)
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Re: Trimming leylandii.

Postby shotgun sam » Sat May 22, 2010 7:31 pm

agricultural roundup works wonders do not tell the wife she thought it was just past its best
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meteor mk2
ruger 12/22 stainless synthetic 22lr
cz 452 style 16 inch 22lr
tikka t3 lite stainless 223
308 howa 1500 varmint
CZ 455 22 Lr/17 Hmr
BSA Lightning XL (0.22)
Lanber Over and Under
Baikal mp153
AYA Cosmos 410
1917 BSA SMLE 303
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Re: Trimming leylandii.

Postby Dean0 » Mon May 20, 2013 9:42 pm

Trim them? KILL them! Leylandii are almost indestructable, cut them down to a stump and they will grow again. They are too vigorous in my opinion to be used for a hedge, unless you are willing to trim them 3 times a year. Getting rid of the waste is a pain too, it takes forever to compost and the compost is of an inferior quality. Cut them to a stump and drill a 1" (25mm) hole in each stump with a spade end bit. Then pour 10ml of neat glyphosate concentrate in each hole and plug with a tapered piece of dowel made from one of the branches. Do some research and plant an alternative hedge that better suits your needs.
Aye, no bad for a sassenach !
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