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6 votes
Accepted

Making a leylandii hedge more bushy and thick

It seems your trees (yes, Leyland cypresses are trees) were never properly trimmed, more likely planted once and then left alone. Which means they behaved like all trees planted closely together: ...
Stephie's user avatar
  • 16.9k
4 votes

Cupressocyparis with double leader

Leave them as they are - Leylandii often have more than one apically dominant shoot, and attempting to reduce the number of them may encourage even more to form. Generally, Leylandii are used as ...
Bamboo's user avatar
  • 135k
3 votes

When are the best times to prune or trim leylandii?

The recommended time for cutting back mature leylandii hedges in the UK is two or three cuts between April and August, so its a little late now, though you could risk taking some off if you're ...
Bamboo's user avatar
  • 135k
3 votes
Accepted

Cupressocyparis with double leader

Leyland Cypress are able to form multiple leaders but we always chose one and suppressed the other or others easily just by cutting the leaders completely off from the main branch or trunk or where it ...
stormy's user avatar
  • 40.5k
3 votes

Making a leylandii hedge more bushy and thick

Everything that Stephie said is fine. However, the trimming would most likely work for the right side of the hedge (right side of the last photo), but for the left hand side, it would be a difficult ...
VividD's user avatar
  • 5,850
2 votes

Making six leylandiis bushy

The advice is to leave hessian in place when planting (though I personally never do unless the roots have already penetrated the hessian). You now need to go out and reduce the height of the plants by ...
Bamboo's user avatar
  • 135k
2 votes

Will my Leylandiis thicken up?

Cupressus x leylandii, AKA Leyland Cypress and until recent years it was × Cuprocyparis leylandii. New genetic research has found that one it's parents was misnamed, resulting it being given a new ...
GardenGems's user avatar
  • 2,398
2 votes

Will my Leylandiis thicken up?

Leylandii trees are fast fast growing and always sparse when young. These trees need a good 5' diameter of soil per tree. I always offset the trees which makes for a more predictable screen as well ...
stormy's user avatar
  • 40.5k
1 vote

Why would a Leyland cypress needles brown after 1 month transplant?

That's a pretty big tree to transplant. especially in May, it would have had an extensive root system which you will have inevitably damaged just as the weather is warming up, making it difficult for ...
Bamboo's user avatar
  • 135k
1 vote
Accepted

How can I prune a dead brown inside overgrown confider leylandii hedge

Normally the way to fill in gaps where growth will not naturally occur is to bend branches from more densely foliated areas to the empty spots. This may mean constructing some kind of rigid grid to ...
Colin Beckingham's user avatar

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