If you’re one of those people who goes to the garden centre for a bag of compost and comes out with a trolley full of plants and accessories, you may need help with your budget. Conserving resources and considering the long-term when it comes to creating a sustainable garden that is resilient to our changing climate will all help make the gardener more thrifty, says gardening broadcaster, designer and author Mark Lane. When selecting plants, see what’s growing well in your area, says Lane, who has presented on BBC Gardeners’ World and Morning Live , and whose new book, The Thrifty Gardener, shows how to reduce waste and save money. “Look at the larger environment, whether that’s the countryside or a park or places you might visit and see what grows there naturally. If you can mimic those plants or sow seeds of the same plants or just grow the same plants, you are introducing species you know are going to grow well in your environment. “That doesn’t cost a lot.…