Questions tagged [leylandii]

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Leyland Cypress dieback

Approx 3 years ago I planted a row of 13 Leyland Cypress as a screening hedge at the back of my garden (London, UK). Over the years the trees have been growing well and have approximately doubled in ...
4 votes
2 answers
9k views

Making a leylandii hedge more bushy and thick

I have this long, very tall leylandii hedge, I guess the taller ones are approaching 40 feet high and one for thick trunks. Especially the older ones are quite sparse... Fine as trees but this is my ...
3 votes
0 answers
42 views

Reducing Leyland cypress to several lateral upward branches

I do have 12 years old, 9 meters (30 ft) tall, 4.5 meters (15 ft) wide, not-ever-pruned Leyland cypress. As you can guess, it threatens touching utility lines, and I think I have to remove it because ...
5 votes
2 answers
809 views

Will my Leylandiis thicken up?

I recently purchased these leylandii trees from an online garden center to form a hedge at the back of our garden. I am concerned they are quite wispy at the moment. I recently saw a neighbors young ...
4 votes
1 answer
72 views

Making six leylandiis bushy

I have just planted 6 leylandii at approx. 3 ft apart. They were 6 ft tall when I bought them last month. I want to grow them to about 15 ft and want them to merge together with a nice thick healthy ...
2 votes
1 answer
2k views

When are the best times to prune or trim leylandii?

We have a row of quite mature leylandii trees as a privacy screen which we wish to have shortened and trimmed, to turn into more of a hedge. Part of it was already done this summer but when are the ...
3 votes
1 answer
5k views

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

As you can see form the picture there are 4 leylandii trees that have grown into the hedge.it was getting difficult to maintain these so in my own head I thought it better to see if instead of getting ...
4 votes
1 answer
2k views

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

I transplanted a ~7 foot tall leyland cypress two months ago (in May, I'm located in Maryland) and the needles began to brown after about 1 month. Browning started mostly near the bottom but now has ...
5 votes
2 answers
1k views

Cupressocyparis with double leader

I have two cupresocyparises (aka leylandiis) that each developed two leaders. They are both around 8m (25ft) high now, the leaders start at appr. 2m above ground, so I guess it is too late just to ...
5 votes
1 answer
3k views

A fire burnt my Leylandii hedge, what should I do?

We just moved to a new house. The which previous owner used to take good care of his garden. A few days ago I was pruning the hedge and which I believe is a Leyland Cypress. I found some brown patches ...
5 votes
1 answer
4k views

How should I do about dry patches in my Leylandii hedge?

I trimmed my Leylandii hedge some weeks ago. And one day I went outside and found this: What can I do? I am new at gardening.