Let it grow

Pulmonarias are easy to grow and there is more variety of colour than you might think. Pulmonaria ‘Opal’ has delicate sky-blue flowers and leaves richly speckled with silver. Lowgrowing and semi-evergreen, it provides ground cover in a shady border or pot. £5.50 for a 9cm pot from Wildegoose Nursery (01584 841890; wildegoosenursery.co.uk).