How Eggshells Benefit the Garden

Learn how to benefit the garden soil using eggshells year-round. It's easy and you can begin right now.

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How eggsshells benefit the garden

Eggshells have this great way of benefiting the garden and how we feed the soil is where we begin to calculate our successes and failures.

When composting eggshells into the soil, we’re adding calcium, this is especially important for plants growing produce. Calcium can help build cell walls which allows a plant to grow faster.

Have you ever noticed rot at the bottom of tomatoes prior to harvesting?  This is due to lack of calcium in the soil.

This happened to me several years ago; it was a simple error that could have avoided.

I failed to pay attention to where I was adding shells, then went ahead and planted tomatoes in the same location as the previous year and every single piece of fruit had bottom rot.

When I figured out what was wrong, I started adding eggshells immediately and my fall harvest that same year was better.

Plants are always pulling nutrients from the ground and if the soil isn’t fed the right nutrition it will have an impact on your garden.

Eggshells offer additional perks and we’re going to take a look at those benefits and how to add this ingredient to any space.

Eggshells to Amend Soil

How to add Eggshells to the Garden

Free-range chickens lay eggs with thick shells, which means they hold a lot of nutrients and why our eggshells always end up in our raised beds.

You can add any kind of eggshells to your garden we just prefer farm raised becasue they taste amazing!


Over the Fall and Winter, add Shells via Direct Composting Like This:

  • I first rinse the eggshells then dig a hole in any raised bed.
  • Add the shells to the hole and crush with my shovel.
  • Finally, cover them up.

This takes just a few minutes and it works like a charm.

To learn more about direct composting and how I garden check out my book Startle Garden Now.


If you have resting beds and already have an idea where you’ll be planting peppers, squash and tomatoes the next season then add eggshells directly to those areas.

This step will detour bottom rot the next growing season.

With that being said you can also add eggshells where existing plants are growing year-round.  I even add them to my rose beds.

Adding directly to the soil allows nutrients to begin breaking down instantly and while they’re breaking down, nourishment is being released into the soil.

If you’re a compost bin gardener then it’s easy enough to just add eggshells directly to bins as you visit the garden. Make sure that compost is added to all planting areas prior to spring planting so your plants can benefit.

Adding eggshells to planters

Eggshells in Containers

Eggshells can also be combined into planters.  A good time to do this is when your establishing new containers or transplanting.

Shells can even be added to houseplants because guess what?  They need nutrients too and will benefit from calcium.

I’m no expert on houseplants so make sure to do your research ahead of time.


To Add Eggshells to Containers, Follow These Steps:

  • Add crushed eggshells to the bottom of the container.
  • Cover with soil.
  • Add new plants, seeds or bulbs
  • Finish securing plant with soil and water as needed.

Working eggshells into the soil like mulch

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Adding Eggshells to Detour Pests

The final way I like to add eggshells is to mix within mulch, I normally use a combination of mulch chips, leaves, small sticks and eggshells.

Some people use a food processer to break shells for this mixture, I’m a little more practical and just use my spade.

If I have garden gloves on, I just crush in my hands.  I found this to be faster and there’s no dishes to wash afterwards.

This step is another way to benefit the soil and detour some pests including slugs.

This isn’t a pleasant detour as it can result in pest cuts where they bleed out.  I know that’s kind ugly, but it is natural…

You’ll notice I only add a few eggshells to my mixture and this is mainly for the nutritional value.

However, I think this actually helps keep the racoons and possums from messing in the garden more than it keeps bugs out.

Adding natural nutrition to improve the soil is the best way to help your plants grow their best.

This is a simple activity, easy to implement year-round by just visiting your garden, digging a hole, and emptying eggshells in the mix.



How eggsshells benefit the garden


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  1. daisy says:

    I learned about how important egg shells are last year when growing tomatoes. I added eggshells, worm castings and coffee ground to every hole in which I put my transplants and never had any issue with blossom end rot. Best tomatoes I’ve ever grown. Now I add these three items liberally to everything I plant. I’ve even added them to my straw bales!

    Enjoy your weekend. Hope y’all are getting some fall weather.

    1. Carole says:

      Thank you for sharing that, it’s helpful for others to see that it really does work. Well we’re still in the low 90’s but the mornings are nice and in the 80’s. Looks like October things will mellow out. Hope you have a great weekend too.

  2. Christine says:

    Happy belated anniversary sweet friend!! I hope you and Robert enjoyed the day!! Cracker Barrel is one of my favorite breakfast stops!! As for egg shells I’ve been using them in my rose gardens for years and love the results!! I’ve never tried them in my planters but that’s a great idea!!

    1. Carole says:

      Thank you Christine, it was a fun day. Eggshells are pretty awesome and it just makes sense to place them into the ground instead of tossing in the garbage. Hope you have a great day!

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