What is the maximum distance hedges and shrubs should be from a building to remain effective?

Maintaining an effective distance for hedges and shrubs from a building is crucial for several reasons, including proper air circulation, sunlight exposure, and overall plant health. A distance of not more than 4 meters is generally recommended, as it balances the benefits of landscaping—with regards to aesthetics, privacy, and windbreak qualities—while ensuring that the plants do not impede on the structural integrity or functionality of the building.

When hedges and shrubs are positioned too close, they can trap moisture against the building, which may lead to issues such as mold, rot, or damage to the building's facade. Additionally, an ideal distance allows for easy maintenance, including pruning and pest control, without needing to interfere with the building itself. A maximum distance of 4 meters typically allows for these factors to be effectively managed while ensuring the plants continue to thrive without posing any risks to the structure.