Using Lobster Shells In The Garden: Learn How To Compost Lobster Shells

Using Lobster Shells In The Garden: Learn How To Compost Lobster Shells

By: Darcy Larum, Landscape Designer
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In Maine, where a majority of the U.S. lobsters are caught and processed, lobster producers have considered many ways to dispose of lobster byproducts. For example, a few professors and students at the University of Maine invented a biodegradable golf ball made from ground lobster shells. Named “Lobshot,” it was specifically created for golfers on cruise ships or boats, as it breaks down within a few weeks of being lobbed into water. Generally, though, lobster byproducts are legally dumped back into the ocean or used in the production of compost. Since the early 1990s, many lobster producers in Maine and Canada have jumped on the compost bandwagon.

Using Lobster Shells in the Garden

A will be localized and personalized by its gardener. In the Midwest, where everyone loves their lush green lawns, a gardener’s compost pile will probably contain a lot of ; but in arid desert-like areas, grass clippings can be sparse in a compost pile. Coffee lovers, like myself, will have plenty of and filters to compost; but if you start each day with a healthy, homemade smoothie, your compost bin may contain a lot of fruit and vegetable peels. Likewise, in coastal areas where seafood is a common staple, naturally, you would find clam, shrimp and lobster shells in compost bins.

What you put in your compost bin is up to you, but the key to great compost is In order for a compost pile to heat up and decompose properly, it should be comprised of about 1 part “greens” for every 4 parts of “browns.” In composting, the terms “greens” or “browns” doesn’t necessarily describe colors. Greens may refer to grass clippings, weeds, , alfalfa, coffee grounds, eggshells, etc. Browns may refer to , , paper products, , etc.

It is also very important to , so it can evenly decompose.

How to Compost Lobster Shells

Like , lobster shells in compost bins are considered “greens.” However, because they breakdown slower than grass clippings or weeds, it is recommended that you grind or crush them before adding lobster shells to compost. You should also rinse lobster shells thoroughly before composting them to remove any excess salts. When mixed with grass clippings or yarrow, decomposition time can be sped up.

Lobster shells add calcium, phosphates and magnesium to compost piles. They also contain a carbohydrate called Chitin, which retains moisture and deters harmful insects. is important because it helps plants develop string cell walls and can help prevent and other vegetable diseases.

Some plants that will benefit from the extra calcium from composted lobster shells include:

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