When Bria was here in September, she helped me begin sheet mulching the flower field. Sheet mulch is cardboard laid on soil and weighted down with organic matter -- straw, compost, etc. The mulch prevents weeds from growing (being deprived of sunlight), and adds organic matter to the beds. This project involved cardboard followed by straw. Next spring I will poke holes in the partially decomposed cardboard and plant the starts I've grown in the greenhouse. Eventually all the straw and cardboard will turn into soil.