Hi - I have the opposite problem - how to keep them under control!

From my experience, by trimming the sides, all the 'growth energy' goes to
the fewer shoots that are left, and they do increase in height faster, but I
suppose it depends on the spread you require.

I'm in West of Scotland, acidic soil, and they seem to really flourish in
that. Not sure if adding acidity to the soil might help. But if 'Rodders' is
a contraction of Rhododendrum, that I assume you already have that!

Jack.


"Rodders" wrote in message
...
We have a rown of 3-year old Laurel bushes that we want to grow as high as
possible, as quickly as possible.

They're growing very well, but seem to grow "outwards" as well as
"upwards".
Should I trim / prune them to promote upward growth??

Any advice would be most welcome please