Luscious lemons, tangy tangerines, awesome oranges - all so delicious and all so overlooked in the garden. We think they deserve a place, not only for their deliciousness, but also for their health benefits and the little-known fact that they can indeed also be grown no matter your climate!

In this week's episode, Ben starts his own citrus collection and pays a visit to a rather marvellous citrus expert Dr Shahnaz Camatchee to take a deep-dive into all things zingy and zesty...