Last fall I tilled up an area in my front lawn and planted a Midwest wildflower mix*. Before the snow came, I covered with some burlap to keep the leaves and weed seeds away. Just wondering if the burlap will prevent the mix from growing - will it be able to get through the gaps, or will it stunt the growth. Should I keep it or remove? Photo attached. *Sweet William Tall Single, Prairie Coneflower, Mexican Hat, Red Corn Poppy, Lance Leaf Coreopsis, Shirley Poppy Mixed Red and Pink, Cosmos Wild Sensation, Blanket Flower, Black Eyed Susan, Wild Perennial Lupine, Purple Coneflower, Russell Lupine, Plains Coreopsis, Siberian Wallflower, Scarlet Flax, Annual Red Phlox, Cosmos Bright Lights, Cornflower Dwarf Mix, Cornflower Tall Mix, Daisy Gloriosa Mix, California Poppy Orange, Perennial Blue Flax, Candytuft Mix