Posted by Richard on March 25, 2011, 4:31 am
I've used paving stones (flags) to create a root barrier. When I dug up
the garden there were tree roots just below the surface emanating from a
row of trees that were planted about 20 years ago. Don't know what
trees they are, but they are those fast growing evergreen types. Look a
bit like Christmas tress.
Anyway, the flag barrier is 61 Cm deep(2 ft)from the surface of the
garden. But, between sections there is a gap between the flags of about
4mm or 5mm.
QUESTION: Do I need to plug the gaps between flags, or will I be okay
leaving the gaps? Thanks.
Posted by shazzbat on March 25, 2011, 6:11 am
> I've used paving stones (flags) to create a root barrier. When I dug up
> the garden there were tree roots just below the surface emanating from a
> row of trees that were planted about 20 years ago. Don't know what trees
> they are, but they are those fast growing evergreen types. Look a bit like
> Christmas tress.
> Anyway, the flag barrier is 61 Cm deep(2 ft)from the surface of the
> garden. But, between sections there is a gap between the flags of about
> 4mm or 5mm.
> QUESTION: Do I need to plug the gaps between flags, or will I be okay
> leaving the gaps? Thanks.
I'm doing a similar thing on the allotment. I'm putting the slabs in
alternate ways round, so that the ends meet nice and snug because of the
chamfers. Another option would be to overlap the slabs. But I expect some
roots will always find a way through unless you use concrete.
Steve
Posted by Bill Grey on March 27, 2011, 8:30 am
> I've used paving stones (flags) to create a root barrier. When I dug up
> the garden there were tree roots just below the surface emanating from a
> row of trees that were planted about 20 years ago. Don't know what trees
> they are, but they are those fast growing evergreen types. Look a bit like
> Christmas tress.
> Anyway, the flag barrier is 61 Cm deep(2 ft)from the surface of the
> garden. But, between sections there is a gap between the flags of about
> 4mm or 5mm.
> QUESTION: Do I need to plug the gaps between flags, or will I be okay
> leaving the gaps? Thanks.
I assume they are "old" flag stones, otherwise why not use short pieces of
"old" corrugated iron sheet which could be hammered into the ground. Could
be cheaper and easier.
Bill
Posted by Mike Lyle on March 28, 2011, 3:54 pm
On Sun, 27 Mar 2011 13:30:16 +0100, "Bill Grey"
>> I've used paving stones (flags) to create a root barrier. When I dug up
>> the garden there were tree roots just below the surface emanating from a
>> row of trees that were planted about 20 years ago. Don't know what trees
>> they are, but they are those fast growing evergreen types. Look a bit like
>> Christmas tress.
>>
>> Anyway, the flag barrier is 61 Cm deep(2 ft)from the surface of the
>> garden. But, between sections there is a gap between the flags of about
>> 4mm or 5mm.
>>
>> QUESTION: Do I need to plug the gaps between flags, or will I be okay
>> leaving the gaps? Thanks.
>>
>>
>I assume they are "old" flag stones, otherwise why not use short pieces of
>"old" corrugated iron sheet which could be hammered into the ground. Could
>be cheaper and easier.
The roots will find the gaps with the greatest of ease. But running a
sharp spade down every year should keep them at bay. They're probably
Lawyer's Friend cypress: ought to be available only under licence, and
to those who can prove they'll plant them at least a furlong from
their nearest boundary.
--
Mike.
XML site map
> the garden there were tree roots just below the surface emanating from a
> row of trees that were planted about 20 years ago. Don't know what trees
> they are, but they are those fast growing evergreen types. Look a bit like
> Christmas tress.
> Anyway, the flag barrier is 61 Cm deep(2 ft)from the surface of the
> garden. But, between sections there is a gap between the flags of about
> 4mm or 5mm.
> QUESTION: Do I need to plug the gaps between flags, or will I be okay
> leaving the gaps? Thanks.