Neptune's Harvest Organic Crab & Lobster Shell (5-3-0) Fertilizer 4lb Bag

Made in USA

Neptune's Harvest Organic Crab & Lobster Shell is a natural, nutrient-rich plant food packed with essential calcium (17%) and magnesium (1%) to support strong, healthy growth. This 5-3-0 slow-release formula enhances your overall fertilization program, benefiting flowers, vegetables, lawns, and turf. As it breaks down, it continuously feeds the soil, improving plant resilience and vitality.

More than just a fertilizer, Crab & Lobster Shell helps aerate soil, allowing roots to expand and establish deeper, stronger systems. When mixed into garden beds or potting soil before planting, it provides a long-lasting nutrient source that encourages robust root development and higher yields. The high calcium content promotes nutrient absorption, discourages weed growth, and helps prevent common plant issues such as blossom end rot, powdery mildew, and black spot.

Rich in chitin, this organic amendment naturally fosters beneficial bacteria that break down chitin-based pests, making it an eco-friendly way to manage soil-dwelling nuisances like grubs, nematodes, ants, and ticks. As a top dressing, its sharp shell edges deter slugs and snails while discouraging burrowing pests such as moles, voles, and rodents from disturbing bulbs and root crops.

Easy to use, Crab & Lobster Shell can be tilled into garden beds or mixed into potting soil before planting. For established plants, simply scratch it into the soil surface. It's also an excellent lawn amendment and can be applied with a broadcast spreader to keep turf strong and healthy. Best of all, it's completely safe for kids and pets.