So if your goal is to permanently cover a stucco wall with vines, go right ahead! At any rate, why would you remove them? After all, they’re making the wall last longer. Climber on a stucco wall: not a problem! Source: You’ll also hear that you shouldn’t grow vines on stucco walls, that they can pull off chunks of stucco when you remove them, but actually, no, they won’t. So, in the very, very long term, probably not during your lifetime, it may be necessary to remove the vines temporarily so the wall can be repainted. On the other hand, when paint peels or fades, it is impossible to repaint a wall covered with plants. Initially, vines protect the wood and make paint last for decades, much more than paint on walls exposed to the elements. In the case of walls made of wood, the answer is not as clear. It likely won’t crumble if your house was built since the 1930s, as modern mortars are much more durable than older types. The age-old trick is to run a house key over the mortar and if it doesn’t crumble, all is well. You should test the mortar on stone or brick walls to make sure it is solid before letting climbing plants grow on it.
One Oxford University study calls self-clinging climbers a “thermal shield.” If the mortar is damaged, repair it before installing a climbing plant.
#PLANTS TO COVER WALL WINDOWS#
Yes, they should be trimmed back if they start to invade windows or climb onto roofs, but they protect walls from what really does damage them: sunlight (notably ultraviolet rays), rain, air pollution and temperature contrasts. Source: We now know that, in most cases, climbing plants are beneficial to structures. Don’t hesitate to prune back climbers when they go too far, such as obstructing windows. And it was abundantly clear that walls covered with climbing plants actually lasted longer – much longer, such as hundreds of years longer in some cases – than walls exposed to the elements.
It is interesting to note that, even as “experts” were advising against using climbing plants on buildings, there were always plenty of examples of them being used that way. There are many examples of buildings that have been covered with climbing plants for decades, even hundreds of years. Rather than resulting in excessive humidity that could damage the wall, vine-covered walls actually tend to remain at a fairly constant, safe level of humidity and this actually preserves walls. However, it turns out climbing plants actually protect against excessive humidity by keeping rain off the wall to start with. It was also once believed that vines grown on walls could damage them through excessive humidity and it does seem logical that a wall covered in foliage would remain more humid than a wall exposed to the sun. Aerial roots (here on English ivy, Hedera helix) cling to surfaces, but don’t grow into them. Like adhesive pads, they always remain strictly limited to the outer surface. This is also true of aerial roots: old beliefs to the contrary, aerial roots of temperate zone climbing plants are a specialized type of root, nothing like the roots that grow in soil: they never turn into true roots that could “dig into the mortar”. In fact, adhesive pads don’t root into anything: they simply cling to the outer surface of the surface they climb. Today we know self-clinging vines don’t root into mortar. How true is that? Adhesive pads don’t root into anything. However, old gardening books long advised against allowing climbing plants to grow on houses under the pretext that they would “root into the mortar” and pull it out. Other vines have twining stems or tendrils and need a trellis to wrap around, but self-clinging vines will attach to almost any surface, even flat ones such as a house wall. tricuspidata, zone 5), English ivy ( Hedera helix, zone 7), wintercreeper ( Euonymus fortunei, zone 6) and climbing hydrangea ( Hydrangea anomala petiolaris, zone 5), are self-clinging: they climb via adhesive pads or aerial roots, depending on the species. Some vines, such as Virginia creeper ( Parthenocissus quinquefolia, zone 2), Boston ivy ( P. Boston ivy ( Parthenocissus tricuspidata) on a wall is a common enough sight… but does it harm the wall in any way? Source:
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