Why is yellow rattle good?
Yellow rattle helps keep more dominant grasses in check by attaching to and drawing nutrients from their root systems, which in turn gives less pioneering wildflowers more opportunity to gain a foothold and thrive. If you are looking to transform grassland into a wildflower meadow, introducing yellow rattle is your first step. As a semi-parasitic plant, it leeches nutrients from the root systems of grasses, giving less robust wildflowers an opportunity to thrive.