Garden plants that are ‘high risk’ and devalue a home by 15% – ‘not easy to eradicate’

These plants are nothing like the stylish garden ideas you’ve implemented, like the roses in your back garden or the neatly planted hydrangeas beside your driveway. Surveying experts at Stokemont.com have revealed that there are a handful of specific garden plants that could have an insidious effect on your home, potentially reducing your property value by up to 15%. So, which plants could ruin the value of your home? These are the ones you need to watch out for if you’re looking to sell your home – in order of potential damage.

Japanese knotweed

First on the list is Japanese knotweed. An infamous weed among home buying and selling circles, it could seriously damage the foundations of your property.

Aaditya Bhatta, editor and founder of Plantscraze, explained that if left to its own devices, it will cause costly damage.

She said: “The massive root system of Japanese knotweed uses weaknesses in building foundations and connecting drainage systems, and causes progressive damage, resulting in a faulty structure over a long period of time.

“Japanese knotweed poses a high risk to foundations, sidewalks and gardens because its fast-growing root system can cause costly damage.”

Naturally, this can be an extremely unattractive prospect for potential buyers.

Unfortunately, it is also quite difficult to remove.

Experts suggest it’s infinitely better to call the experts – before people start visiting.

READ MORE: Homes Under the Hammer buyer raises value by £34,000 in impressive update

giant hogweed

While this one may look like a bouquet of pretty white flowers, it’s deceptive – because it’s actually just as bad for your home as its rather terrifying name might suggest.

Giant hogweed spreads quickly, but it does not cause structural damage to your home.

In fact, it can cause severe skin irritations instead.

It is also difficult to remove, and therefore expensive to dispose of (going to professionals can cost up to £15,000).

Claudia de Young, landscape and garden consultant, explained: “It is not easy to eradicate it by simply cutting it down.

“It is a very hardy plant and should be dug up with its roots attached, leaving no part of the plant in the ground.”

This, and its danger to your skin, can absolutely put off potential buyers, who may be less inclined to buy your property until it’s gone, lest they have to shell out for it themselves. move.

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poplars

Large trees such as poplars (and willows or oaks) near your home can also be detrimental to the sale.

Indeed, their roots can extend up to 40 meters, potentially disrupting the structure of the building.

Claudia said: “Certain tree roots have the potential to penetrate under foundations, lifting paving, blocking drains and causing serious settlements or structural cracks.

“Not all mature trees cause structural damage if planted near buildings, but it can happen.”

Bradley McKenzie, a Stokemont property surveyor, clarified: “Their age, soil type, location and depth are all important in deciding if your tree is a problem. If so, the repair could cost you between £5,000 and £25,000.

It’s no wonder, then, that they can risk the overall value of your home.

Himalayan Balm

Himalayan balsam can look lovely, with striking purple flowers. But if you find this plant in your garden, it’s probably best to remove it as soon as possible.

Its potential damage to nearby ecological systems makes its presence risky.

Claudia explained: “Himalayan Balsam is another non-native species, aggressively competitive, finding its way into gardens and shading out our native plants.

“It is illegal to plant it and let it grow wild. Although its nectar-rich flowers attract pollinating insects, it will deter them from visiting native species.

“Due to its rapid growth, it can also block waterways and increase the risk of flooding.”

Bradley added: “Its significant ecological impact on nature and associated laws are not favored by buyers.

“It is therefore recommended to keep this plant controlled or eradicated.”

Fortunately, however, it is easier to remove than the plants above, with Claudia suggesting that pulling and cutting the plant by hand before it freezes is a good first step.

Ivy

Yes, this climbing plant might look perfect, especially when it’s in an old English country house, but if you have the wrong type, Ivy could create cracks in your structure, allowing moisture to seep through.

Aaditya explained, “While ivy can improve the look of a home, its strong attachment to walls can be a concern for some homeowners, as it can damage wall surfaces or block drains and gutters.

“To avoid structural damage to the house, large ivy plants attached to the walls should be removed.”

She suggests using clippers to prune Ivy to the ground first.

The expert added: ‘If you have ivy on your walls, they will dry out when cut from below.

“In order to clean up the remaining vines properly, remove them after they dry out.”