With spring just around the corner, Monty makes a start on his bog garden and demonstrates how to divide perennials and get plants for free.Rachel de Thame visits a garden in Kent, a labour of love where meticulous planning, discipline and precision have cleverly extended the season, and Arit Anderson plants up a seasonal container inspired by the colours of spring.We meet an allotmenteer in north west London who loves to experiment with growing unusual and heritage vegetables to use in her cooking, and a couple of plantaholics with a passion for rare and unusual plants show us around their garden, created on the site of a former nursery in Cambridgeshire. Viewers also share their gardening exploits.