Gardener’s World star Monty Don is one of the best-known horticulturalists in the country – but has been vocal about his struggles with his mental health. Don suffered a turbulent childhood, battled cancer, suffered a stroke and was diagnosed with SAD (seasonal affective disorder) – a type of depression that comes and goes in a seasonal pattern – but continues to work on his recovery. The BBC star has said in the past that his gardening and passion for horticulture have helped, but it was his wife Sarah Don that gave him the push. Working on his mental health has been an uphill struggle and Do…