Printed from: https://www.conservationhandbooks.com/the-urban-handbook/grasslands/basic-rules/
Poor soils are an advantage. On rich, fertile soils, wildflowers are rapidly smothered by strong growing grasses, vigorous plants such as nettle, dock and thistle, and by bramble and scrub. Where conditions are very dry, sandy, rocky or contain a high proportion of industrial wastes, slower growing plants and those adapted to specialised conditions are...