Seed more plants!
March and April are ideal months to plant seeds and add some new plants to your garden. The images are from Sunflower seedlings but you’ll be surprised how many plants are available in seed. Have a look at Chiltern Seeds, for example. Not just veg but many annuals, perennials, cut flowers and grasses. For wild flowers I often use John Chambers Wildflower Seeds. They have many native species and wildflower seed mixes for specific soil conditions so you can seed the right native plants at the right places. For smaller quantities try Landlife Wildflowers. They also have mixes for specific conditions.
I am going to try out a wildflower seed mix for dry soils, which should just be the ticket for the area along the North Downs. I’ll keep you posted.