June is the transition from the spring garden, with woodlanders in their race to bloom against the tree canopies, to the summer garden of swelteringly hot days, clement nights and borders crammed to bursting with heady scents. This transition period we refer to as the ‘June gap’ - the lull before real summer beauties can show off their stuff. So what to do if you find your borders a bit flat at this time of year? Well there are plants that span the seasons.