Success with delphiniums, easy early summer cuttings, and peculiar plums

As the summer holiday season begins, David Maxwell is joined in studio by Ann FitzSimons and Mary Doris who are full of summer gardening inspiration. Ann explains how to make more plants for free right now by taking semi-ripe cuttings. Mary makes the best of the gardens summer bounty including, chive pesto, honeysuckle syrup and lemon balm cookies. Together they answer listener questions including how best to grow delphiniums, rejuvenating old box hedging and a tree producing peculiar plums. Contact the programme on gardenerscorner@bbc.co.uk