Josh Byrne gives his tomatoes a head start, Tino Carnevale discovers some living plant fossils, Costa Georgiadis visits a super-productive small garden, and Jane Edmanson explores an amazing succulent garden.

Costa Georgiadis gives a compost masterclass, Jane Edmanson tours a tiny food garden, Tino Carnevale attracts more wildlife neighbours, Sophie Thomson meets a group who've taken their love of gardening to the streets.