Bumper Crop Natural & Organic Soil Builder is a premium soil amendment. It contains only the finest natural and organic ingredients including: composted chicken manure, earthworm castings, bat guano, and kelp meal. This is a versatile mix that may be used as a natural and organic soil builder or mulch. Think of it as boosted up compost!

One bag will amend 8 square feet of our native-Napa soil or tired raised bed soil. Mix it in and you’re ready to plant! OR spread it thin (over 12-24 square feet) for a little pick-me-up for existing plantings. This is ideal for ‘freshening-up’ raised beds for other containers.