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By Catman

i have just brought some leyllandi conifers 2 ft tall, where i was going to plant them, turns out its a concrete bed about a foot deep and a foot wide if i plant them will they grow to be 20ft tall or will they be limited by their root space? please help



Conifers are relatively shallow rooted plus the roots will travel horizontally meaning as well as growing to 20 ft high as you say,these roots will spread out further than normal from the base of the tree/s

Meaning you won't be able to grow plants for some distance from the base of the trees

11 Jun, 2012


If these are to be planted on a boundary many councils have restrictions on how high you can grow them - often only eight feet. If this is no problem you would probably be better bringing your planting holes eighteen inches or so forward to avoid the concrete altogether.

11 Jun, 2012


you have to get planning permission in a lot of places now because of all the problems they have caused so id definatly look into that first .

12 Jun, 2012


These are real thugs, they block light, they starve the garden of water and nutrients, they upset neighbours and can cost a fortune to remove and they grow 3-5 ft per year. The laws around here limit them to 2 metres which could mean an awful lot of cutting 2-3 times per year.
Your 20ft is a conservative height as they can reach 45-75 ft in 15 years depending on conditions.

12 Jun, 2012


I take it you hate them as much as I do Drc. Shouldn't be allowed to be grown or planted.

12 Jun, 2012


there not without permission anymore . they took one down near me 45` tall and probably 30` wide at the bottom .

12 Jun, 2012


Poor old Catman, and you've already bought them...
but are you sure they are leylandii? there are lots of other varieties of similar looking hedging that are more reasonable.

12 Jun, 2012


better to know now than when there huge .

13 Jun, 2012

How do I say thanks?

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