How do you propagate quaking grass?
Quaking grass seeds should be sown in spring or autumn, either outside, where they are to flower, or in seed trays and covered lightly with compost. Quaking grass seeds are usually easy to germinate and the seedlings, which are quick to develop, can be pricked out and grown on, for planting out later in the year.
Is quaking grass invasive?
But be warned, it seeds so freely and so fast that it can easily become an annoying weed. Quaking grass, Briza maxima, falls into this category, so we have stopped growing it. Lyme grass, or Leymus arenarius, has fabulous blue foliage and flower heads like wheat. It is invasive, but too good to ignore.