Nunhead gains a pop-up apothecary bar full of flowers that are literally good enough to eat. The bartenders will create colourful cocktails made from herbs and flowers grown in the bar's planters: the ultimate in locally sourced ingredients. Performers will be on hand to take guests on guided tours of the Edible Flower Garden (2-8pm), during which they'll be able to pick tasters from the floral borders. Tickets for the tours (£10, £6 concs) include a cocktail and should be booked in advance. Entry to the bar is free. Suitable for ages 12 and over.