By Mariam Khan With spring well and truly here, those lucky enough to have a garden will have one thing on their minds – a perfect lawn. However, a perfect lawn can be easily sabotaged by pesky moss and weeds. Thankfully, one expert has said there is a showstopper product gardeners need to remove unwanted plants in just seven days. Moss and weeds are arguably the most concerning issues for gardeners who want to make their lawns look brilliant. Expert Stuart Staples, head of technical at Westland Horticulture shared his top tips on tackling weeds, moss and how to keep your grass healthy this sp…