Polemonium 'Northern Lights' 16052016 |
The label says that Polemonium 'Northern Lights' is a clump-forming, compact, fully hardy plant with delightful pale-blue fragrant flowers from May to July. It regrows from ground level every year. It achieves a height of 35cm (14in) and spread of 30cm (12in). It likes fertile, well-drained and moist soil in full sun or partial-shade. when the flowers have faded, cut back to encourage a second flush of flowers.