Overview: Alan is in Harlow in Essex, where he shows how the smallest of gardens can be turned into a private sanctuary. He also transforms a tiny hot tub area into an intimate tropical garden. Matt James demonstrates how to make the very best out of a humble basement and, as autumn arrives, Laetitia Maklouf uses dried petals to keep the summer alive, and there is a look at the ultimate garden status symbols, from deluxe hanging baskets to five-star hot tubs.