The Gritty Mindset and Extreme Fitness It Takes to Fight Megafires

The sun is out, the sky is blue; there's not a cloud to spoil the view and have you seen what that's doing to the herbaceous border? Botanist Alastair Culham explains how to make the most of watering as Britain continues to experience a hot spell. First published on Thu, 05 Jul 2018 as When is the best time to water during a heatwave?. To find out more visit The Open University's Openlearn website