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

Made in USA

Neptune's Harvest Organic Crab & Lobster Shell is an all-natural, slow-release plant food that's packed with essential nutrients. With 17% calcium and 1% magnesium, this 5-3-0 formula improves soil health while feeding flowers, veggies, lawns, and turf. As it breaks down, it boosts organic matter, helping plants grow stronger and more productive.

Adding this shell-based amendment to your garden is an easy way to improve soil aeration, giving roots plenty of room to stretch and grow. When mixed into garden beds or potting soil before planting, it provides a steady food source that helps plants develop deep roots and produce bigger yields. The natural calcium strengthens plant cells, improves nutrient absorption, and helps prevent common problems like blossom end rot, powdery mildew, and black spot.

One of the best things about Crab & Lobster Shell is its natural pest-fighting power. It's rich in chitin, which encourages beneficial bacteria that break down chitin-based pests like grubs, nematodes, and ants. When used as a top dressing, the sharp shell fragments deter slugs and snails while keeping burrowing critters like moles and voles from digging up bulbs and root crops.

It's easy to use—just mix it into garden beds or potting soil before planting, scratch it into the soil around established plants, or apply it with a spreader for lawn care. And since it's completely safe for kids and pets, you can garden worry free.