Four 'danger' plants that must be removed from your garden immediatelyProperty experts have warned that four common plants can cause serious damage to homes if they aren't dealt withView Image Ivy being removed from a section of wall as it's named one of the 'red flag' plants that must be eradicated from gardens (Image: Joseph Raynor/ Nottingham Post)Four 'danger' plants must be removed from your garden immediately, according to property experts. The seemingly innocent greenery can cause serious damage to homes, from cracked brickwork and damaged drains to costly legal headaches. ‌READ MORE:Below, Kevin reveals the four plants that should never find their way into your garden, explaining why they're so troublesome and what you can plant instead. ‌Four plants that must be removed if you have them in your garden1. "Those roots get into the smallest cracks and expand as they grow, causing serious damage to brickwork."