Nothing Beats This Old Spring Favourite. Wallfl Owers Produce Big Clusters Of Colourful fl Owers & Are Perfect For Planting In Any Sunny Spot In The Garden, But Look Their Very Best When Planted Casually In Dry Walls Or Rockeries. on Top Of That, They’re Scented & Bee-friendly Too!planting Bare Roots In Autumn Is The Traditional Way, Because They Produce Much Stronger, More floriferous Results Earlier In The Spring.plant The Bare Roots Into Weed Free, Well Cultivated Soil In Sun Or Part Shade. Space Plants around 15-20cms Apart. Keep Moist Until Established.