There is more spring colour to enjoy in the garden, and Carole Baxter is looking at bedding plants, which are safe to plant out now that the risk of frost has hopefully gone. Carole also has an update on the yellow rattle that was sown last year. Yellow rattle inhibits grass growth and is a great way to encourage and assist other wildflowers to progress in a grassy area. It is also time to plant out the dahlias, and new Beechgrove expert Ruth Vichos is tackling pests in the greenhouse. There is a visit to East Lothian to visit the plot of father-and-daughter gardeners Erin and Joe Armstrong, while Brian Cunningham has the latest from his garden at Old Scone.