Roofs are also vulnerable and plants should NEVER be allowed to grow to the height of the eaves. Wall damage by climbing or trailing plants If it is a large plant with a very thick “trunk” or base, and its base is very close to the wall, the roots can dig deep down, very close to the house and in some cases, can cause settlement or undermine the foundations, meaning shockingly expensive repairs.
What other damage can a climbing plant do? Hydrangea petiolaris, which is a climbing version of this plant.
There are many different species but as I don’t run a gardening website (!), here’s a few to look out for and potentially avoid. These destructive climbing plants are often known as “self clingers”. It doesn’t take a professional gardener, or a building surveyor, to tell you that plants entering the fabric of the building will suck natural moisture which is present in walls and undermine adhesion of the parts of the wall that make up bricks and blocks etc,īasically if you want a plant climbing up the wall of your house, choose carefully, as the wrong choice could end up weakening the structure of the house. Millions of these penetrations into the wall can amass to one big incursion into the exterior wall surface. The sort of plants to avoid having trailing up your wall are often the ones that have “suckers” or little mini branches like spikes, that burrow under the paint or pebbledash, into the render of the wall for a foothold. It’s worth noting that it’s not all doom and gloom if you have, or you would like, plants trailing up the outside walls of your house, but what plants are usually best, and what ones are best avoided? What climbing plants to avoid, and why If left unchecked, they could eventually cause serious structural problems. Having plants winding their way up your outside walls can look very pretty but the actual damage some plant life does to your house exterior walls could make some people think twice in allowing the plant to grow in the first place.īy no means are ALL climbing plants bad for your house, some can genuinely provide benefits in terms of style and eco-friendliness, however some climbing plants are very aggressive in the way they anchor themselves to your walls.
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