Can you suggest flowering plants for a bed against south-facing walls? One gets little rain; the other gets it all. The former bed is in constant shade under eaves; the latter gets summer morning and evening sun and is a retaining wall. The former bed wall is red-brown clinker brick; the latter is a pale green plastered concrete and has a massive star magnolia tree. Hoping for perennials of contrasting colour, and bee & butterfly friendly. Can you help? Thank you

Hi Lynne, look to impatiens for both spots, they thrive in full and part shade, you will find low growing types and then mid-sized versions too which reach about one metre in height. Other options could be mimulus, pansies and violas. Or you could consider hydrangeas. Happy planting!