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)

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

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 nutrition

🦀17-23% Calcium boost

🛡️Natural pest & fungus defense

318.73 DT

Duties & taxes included

In stock

Sold byAmazon TunisiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Tunisia.

Secure transaction

Description

🦞 Feed your roots, fend off pests, and grow like a pro with Neptune’s Harvest!

NATURAL PEST CONTROL - Chitin-rich formula helps manage root nematodes, grubs, ants, slugs, and fungus without chemicals.
CRAB LOBSTER POWERHOUSE - Harness 17-23% calcium and 1.3-1.7% magnesium for robust plant growth and soil vitality.
ORGANIC SOIL HEALTH BOOSTER - Improves soil structure by aerating and retaining moisture while sequestering carbon naturally.
SLOW RELEASE NUTRIENT MAGIC - Feeds your garden steadily all season long, promoting deep root development and healthier plants.
VERSATILE EASY APPLICATION - Covers up to 1,000 sq. ft. per 10 lbs, perfect for lawns, gardens, seedbeds, and indoor plants.

Neptune’s Harvest Organic Crab & Lobster Shell Multi-Purpose Plant Food is a premium 4 lb resealable bag of slow-release, nutrient-rich fertilizer made from natural crab and lobster shells. Packed with 17-23% calcium, magnesium, and chitin, it supports long-term soil health, enhances root development, and naturally controls pests and fungi. Ideal for lawns, gardens, vegetables, and indoor plants, it covers large areas efficiently while improving soil aeration and moisture retention—all certified organic and safe for kids and pets.

Specifications

ASIN	B006GK5ON6
Best Sellers Rank	#10,963 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #395 in Garden Fertilizers
Brand Name	Neptune's Harvest
Coverage	Medium
Customer Reviews	4.8 4.8 out of 5 stars (1,287)
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

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

1 month ago

Anita G.

Good experience, but the tracking updates could be better.

2 months ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

318.73 DT

Duties & taxes included

In stock

Sold byAmazon TunisiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Tunisia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Reema J.

Perfect platform for hard-to-find items. Delivery was prompt.

1 month ago

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

View all Trustpilot reviews