GARDEN Q&A: My calla lilies will not flower

Whether you're a gardening beginner or expert, Irish Examiner columnist Peter Dowdall has the answer to your questions  

When they produce leaf after leaf but no flower, it usually means they’ve plenty of food and energy but no incentive to bloom.

Question

My calla lilies have not flowered for three years. Beautiful, healthy leaves, but alas, not a flower. Have you a solution?