As October progresses and nights become colder, Monty advises on what plants need protection and how to protect tender plants over the coming months. Carol Klein celebrates ornamental grasses as her plant of the month, Adam Frost travels to Peterborough to find out about the work of a Children in Need project for disadvantaged and vulnerable children and Nick Bailey gives a step-by-step guide on how to build a cold-frame for a budget price. We visit Mark Diacano in Devon, who shows us how to grow our own szechuan pepper, and we go to Surrey to talk to an enthusiast who grows thousands of South African succulents in his back garden in Surrey.