Waltham Forest: Coriander, Sow-By-Date and Perennials

How do you grow coriander successfully from seed? Do seeds have a sow-by-date? And will your treasured perennials thrive in the challenging Scottish climate? Kathy Clugston hosts from the beautiful St Mary’s Church in Walthamstow, where a lively audience puts their gardening dilemmas to an expert panel. Joining Kathy are renowned garden designer and botanist James Wong, horticulturalist Matthew…