In the nursery, plant boxes are filled with pots of wildflowers and covered with a thick layer of leaves. Our plant boxes are made of 2 by 6s, with hardware cloth (wire grid) bottoms and removable lids made of hardware cloth in a wooden frame. We need to protect our plants this way, because otherwise small animals uproot some and hide their stashes in others, dramatically reducing our inventory of native plants for next year's sale.