June brings us the weather that we’ve been waiting so long to indulge in, so what should we focus on in the garden to help it thrive in the sunlit warmth?In this monthly episode, Josie Lewis shares the biennials you should be sowing to plug next year’s May gap, and Sarah lauds the appearance of rhubarb with a lovely cordial recipe.We also look at a new way that we’ve developed for picking sweet peas at this time of year, how to know when your pots need watering, and what makes this the month ...