Neptune's Harvest Organic Crab & Lobster Shell (5-3-0) Fertilizer 4lb Bag
Neptune's Harvest Organic Crab & Lobster Shell (5-3-0) Fertilizer 4lb Bag
Zone compatibility details
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Zone compatibility details
This variety’s zone range
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My hardiness zone
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The USDA hardiness zones offer a guide to varieties that will grow well in certain climates. Each zone corresponds to the minimum winter temperatures experienced in a given area. Make sure that your hardiness zone lies within the zone compatibility range of this variety before ordering.
Spring Shipping Schedule
Spring Shipping Schedule and Zone Opening Earliest Ship Dates
Note: At Park Seed, we are committed to shipping healthy live plants at the ideal planting time for your zone. In order to ensure our plants are shipped at the optimal conditions, we regularly adjust our shipping timeframes as needed. The below table reflects our current estimate of timing for rose, live plant and bulb shipping this season.
| Zone | Bareroot Roses | Container Roses | Plants & Bulbs | Sweet Potato & Avocado | Citrus | Blooming Blocks |
|---|---|---|---|---|---|---|
| 1-3 | Early-Mid May | Mid May | Mid May | Late May-Mid June | Early-Mid May | Early-Mid May |
| 4-5 | Early-Mid Apr | Late Apr-Early May | Late Apr-Early May | Mid-Late May | Late Apr-Early May | Early-Mid May |
| 6 | Mid-Late Mar | Mid-Late Apr | Mid-Late Apr | Early-Mid May | Early-Mid Apr | Early-Mid May |
| 7 | Early-Mid Mar | Mid-Late Apr | Late Mar-Early Apr | Late Apr-Mid May | Early-Mid Apr | Early-Mid May |
| 8 | Mid-Late Feb | Mid-Late Apr | Late Mar-Early Apr | Mid-Late Apr | Early-Mid Apr | Early-Mid May |
| 9-13* | Late Jan-Mid Feb | Mid-Late Apr | Late Mar-Early Apr | Mid-Late Apr | Early-Mid Apr | Early-Mid May |

Grow Zone
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Mature Height
Mature Width
Sun / Shade
Bloom Size
need bloom size meta
Tomato Fruit Set
Days To Maturity
Fruit Weight
Soil Tolerance
Moisture
Description / 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 usejust 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.
WARNING: This product can expose you to chemicals that are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Product Details
SKU: 44508
Special Features:- Fertilizer
- Indoor Growing
- Made in USA
- Tomato aids
- Soil Amendments