With warmer weather on the horizon, Monty Don makes a start on getting some tender vegetables underway, recommends plants which thrive with very little water and gives tips on the spring maintenance of houseplants. Nick Bailey spends the day at Kew Gardens exploring its cacti and succulent collection, Adam Frost helps family members in Lincolnshire transform their front garden into a more interesting and usable space, while Arit Anderson travels to Faversham in Kent to find out how the town has used innovative ideas to reduce its plastic use.