1Put crocks in the base of the container and half fill it with compost. Arrange the osteospermums in the centre of the pot and surround them with the foliage plants. We used Helichrysum petiolare 'Limelight' for its soft, furry leaves, plus it will cover the pot and its sides very quickly, as well as Lantana camara, which is a tender shrub with fascinating flowers that change colour as they age.