Hedera helix (Ivy or known as English Ivy in the US..)
Pick a cultivar from the huge number here..
Take your pick from the ones coded as 'Cl' (for climbing) Once you;ve
chosen one I'm sure the group can help you track down a supplier in your
Modern cement render 'should' be OK providing it is checked on a regular
basis for maintainance purposes.. A lot of the myth of ivy being
'damageing' comes from instances where its supporting striucture (be it
wall, house, tree etc) has already been allowed to come into a state of
disrepair through neglect.. Either through complete neglect or because
people do not bother to check up close whilst the structure is covered
by the vine..
It won't kill trees... It CAN compete with trees for light and food if
it gets into the crown and becomes arborescent itself..
It WILL add 'sail' area to trees making them have a much greater weight
and wind resitancce than normal so any weak trees will be more likley to
fall or be blown over by strong winds..
IVY is not a thug, but SHOULD be treated with respect.
Noting your original post you may wish to check on suitability/tolerance
of cultivars to sun, as Ivy is originally a plant of UK European
woodlands. There are plenty of cultivars that will tolerate and thrive
in full sun once established though.
Given enough time and unchecked growth, yes, English ivy can kill trees. It
can form a canopy dense enough so that the tree is unable to photosythesize
properly, as well as rendering the tree top heavy and subject to increased
wind damage. It is a pretty common phenomenon here in the PNW, where English
ivy has invaded greenbelts and natural areas to a huge degree.
pam - gardengal
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