This week’s plant, Pulmonaria saccharta ‘Sissinghurst White’, is commonly known as Lungwort or Spotted Dog. Originally native to France and Italy, it is an early-flowering herbaceous perennial with spotted leaves that persist all year round – a good ground-covering plant. There are many varieties which come in shades of blue, red and white. Tolerant of shady conditions, it prefers humus rich soils. This variety of the plant was created at Sissinghurst in Kent – the home and garden of the poet and garden writer Vita Sackville-West, now in the care of the National Trust. You can see it along the North Walk in the University Parks.