Chitin is most commonly recognizable as the hard whitish parts of a crab shell although it is one of the the main substances in many exoskeletons (creatures that are hard on the outside-- like crabs, lobsters and many insects-- have exoskeletons rather than internal bones).

When putting a plant in the ground, should this be put around the roots or near the top of the soil? All tips appreciated!

Hi there, we generously applied the shells to the top of the soil of our raised beds and then tilled in to a depth of about 6-8". We found that this product really helped us with the calcium deficiency we were having here in Colorado, causing end-rot on our tomatoes and peppers. I think we will try applying it around the base of our plants as needed (after big rain events) next year too because, even though it helped tremendously, a few of our plants still had some problems. I think either application of the shells, around roots or top, will work, depending on the severity and nature of your problem or your fertilizing needs. Hope this helps a little.

I assume the crab has been cooked in some way before the shell is removed. Does anyone know how the shell is processed?

I doubt it's been processed. It's simply crushed crab and crab shell. Smells like it too. Ingredients: Crushed crab and crab shell.

Can this product be used as fertilizer for my spring bulbs ?

Yes, it is a fertilizer. A light fertilizer. IngredientsNitrogen Total N (2.63%), Phosphate Total P205 (3.23%), Potash K20 (0.28%), Sulfur (0.2%), Magnesium (1.33%), Calcium (22.95%), Sodium (0.53%), Iron (3239 ppm), Manganese (56 ppm), Copper (23 ppm), Zinc (45 ppm), moisture (10.29%), pH (6)

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Neptune’s Harvest Organic Crab & Lobster Shell Multi-Purpose Plant Food (5-3-0) - 4 LB Resealable Bag - Rich in Nutrients Soil Fertilizer - Plant Food for Lawns, Gardens, and Vegetables

Neptune’s Harvest Organic Crab & Lobster Shell Multi-Purpose Plant Food (5-3-0) - 4 LB Resealable Bag - Rich in Nutrients Soil Fertilizer - Plant Food for Lawns, Gardens, and Vegetables

Product ID: 3935029

Details

Brand
Neptune's
Item Form
Flake
Item Weight
4 Pounds
Liquid Volume
1.8 Kilograms
Specific Uses For Product
Plant Growth

🌱Slow-release organic N-P-K 5-3-0

🌾Covers 1,000 sq.ft. per 10 lbs

🦀17-23% Calcium boost

₨1398

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Description

🦞 Elevate your garden game with ocean-powered growth!

KID PET SAFE FORMULA - Organic, non-toxic, and OMRI-approved—grow your garden with peace of mind.
ECO FRIENDLY SOIL SAVIOR - Improves soil structure, moisture retention, and carbon sequestration for sustainable gardening.
CRAB LOBSTER POWERHOUSE - Harness the natural mineral-rich shell meal for superior soil nutrition and pest defense.
VERSATILE GARDEN ESSENTIAL - Perfect for lawns, veggies, flowers, and indoor plants—one product, endless green possibilities.
SLOW RELEASE NUTRIENT MAGIC - Feeds your plants steadily all season long, promoting deep root growth and vibrant yields.

Neptune’s Harvest Organic Crab & Lobster Shell Multi-Purpose Plant Food is a premium 5-3-0 organic fertilizer made from natural crab and lobster shell meal. Rich in calcium (17-23%) and magnesium, it supports long-term soil health, pest resistance, and steady nutrient release. Ideal for lawns, gardens, vegetables, and indoor plants, this OMRI-approved formula enhances soil structure, moisture retention, and root development while being safe for kids and pets.

Specifications

ASIN	B006GK5ON6
Best Sellers Rank	#10,879 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #368 in Garden Fertilizers
Brand Name	Neptune's Harvest
Coverage	Medium
Customer Reviews	4.8 4.8 out of 5 stars (1,279)
Global Trade Identification Number	00081435506046
Included Components	Neptune's Harvest Crab & Lobster Shell, 4 lb
Item Form	Flake
Item Type Name	Neptune's Harvest Crab & Lobster Shell, 4 lb
Item Weight	4 Pounds
Liquid Volume	1.8 Kilograms
Manufacturer	Neptune's Harvest
Mixing Ratio	5-3-0
Model Number	CS604
Number of Items	1
Part Number	CS 604
Specific Uses For Product	Plant Growth, Root Development, Seed Development, Soil Conditioning
Target Species	Bird
UPC	081435506046 617407739725
Unit Count	64.0 Ounce
Warranty Description	Warranty

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