You can source screened top soil from Brickkiln Waste - they offer small loads from 1 tonne up delivered kerbside.
In the bed we have planted Sunflowers, Dahlias, Livingston Daisys, Night Scented Stock, Cosmos and Marigolds - all plants the guys are grew from seed as part of their City and Guilds Horticulture Course.
The bit to the left is just being set up for some paving to be done there...