UKTC Archive

Re: Suitable tree

Subject: Re: Suitable tree
From: Jonathan Mills
Date: Jan 08 2007 23:01:14
On 07/01/07, Pete Hughes <> wrote:

I think a lot of what's important from the arb point of view will be
related to the factors that determine whether a particular
specie/cultivar can thrive (or otherwise) in an urban environment - soil
compaction, tolerance to salt, tolerance to pollution, tolerance to
urban microclimates etc. etc.

There is already a lot of research on these factors, but what I would
like to see is information for a wider range of species, with the aim of
increasing the 'palette' of species available to landscape designers. At
the moment there is something of a chicken-and-egg situation (or Catch
22??) - designers can currently only be confident specifying a limited
number of species/cvs that have a history of success in urban plantings,
therefore nurseries only grow what they know will sell, therefore
designers are limited to specifying species that they know are readily
available at a reasonable cost....... (I have to say, Barcham Trees have
made sterling efforts in widening the range of species available). It
would be nice to know the experiences of arb professionals as this help
improve our knowledge and hopefully this would allow us to take a few
more risks in planting less common trees.


Tahir wrote:
> One thing I'd really like to know are what susceptibilities and
> tolerances are important for the arb world that we may not have
> previously considered looking at it from an orchard perspective.
> Tahir

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It can get more complicated for varities sorbus are normally grafted onto
hawthorn root stock. So are the soil conditions been selected for Sorbus or
Hawthorn? I think this fairly common for other varities of tree.

If you have good species knowledge they should transfere through to varity
in most intances. What would be great to know is all the quirks a tree
varity has such as Prunus cereferia 'pissardii' that has large messy
fruits and apt to decay after 30 odd years.

Your best source of referance would be the nurserys like Barcham Trees,
Coles, Wyvale, Hilliers, Nottcuts and Beeches.(I think that is all the main
ones)  I am sure given the amount of money they make out of selling trees to
LAs they can spare the odd bob ot two. As the feed back on tree performance
will be invaluable marketing.

Also some trees perform better if they are containeriesed and others makes
no real differance. Cherrys seems to transplant very readily bare
rooted/rootball or containerised, while things like birch are a bit harder.

Thanks for offering to do this.
Jonathan Mills
17 Westhead Road North
01562 XXXXXX
07944 XXXXXX

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