How to Make Eggshell Tomato Fertilizer

Chickens are gifts that keep on giving! Nothing they create goes to waste. Save your eggshells and add them to the compost pile to make an excellent and enriching addition. OR you can also use them for the best eggshell tomato fertilizer to give your plants a boost of calcium!

Eggshell Tomato Fertilizer Recipe:

  • 2-3 dozen crushed eggshells
  • 2 cups bone meal
  • 1/2 cup Epsom salts
  • 14 crushed aspirin (a natural rooting hormone!)

First, wash your eggshells with soap and water and let them dry completely on a window sill before adding them to the mixture. You can also bake them for a couple of hours at 100 degrees Fahrenheit if you don't want to wait. Make sure they are dry and brittle before using them.

Next, Combine all the ingredients in a large container to keep dry while storing.

How much fertilizer should you feed your tomato plants?

To start off, add about 1/4 cup of the mix at the bottom of the new hole you're putting your tomato plant in. Tomatoes need to be buried deep, so plan on digging a hole covering 2/3 of the plant. This makes for a robust root system and a productive plant. Don't forget to mulch your new plants as well. This will help keep moisture in the ground longer, and since tomatoes are prone to several diseases that live in the soil, mulch helps keep the dirt from splashing up on the bottom of the plant's leave.

How often should you fertilize my tomato plants?

You can use the fertilizer throughout the growing season by feeding your plant every 6 weeks. Just sprinkle a handful loosely at the base of the plant and water. Enjoy your monster plants this summer--and think about sharing some of your delicious tomatoes with the "girls" that helped them grow!

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Prajna Faux
10 years ago

Question: What is bone meal and where can I find it?

Bonnie
10 years ago

I save all my egg shells, put them on a parchment paper lined cookie sheet and bake them for about a half hour-45 minutes in a 250 degree oven then run them through the blender until ultra fine. I mix this with the chicken food for extra calcium for my chickies!! It sure helps prevent those soft shells. Yes, I love that I can recycle them like that!!

10 years ago

can you use this on corn

LindaG
10 years ago

Thanks for this tip!

Michelle
10 years ago

I love this! Now to get started.... One question, why do you wash the eggshells if they are going into the dirt? Is it bc of the smell during the grinding process?

Susie
10 years ago

I have used washed and dried crushed eggshells for years now around my plants to keep slugs and snails away, especially for my hostas. Soon I'll be able to have help from my chicks, I am so looking forward to when they can go outside...

10 years ago

I love my home growen tomato 🙂 thank you 🙂

Michele Kennedy
10 years ago

Love the tips on the fertilizer. Thank you for sharing. I do have a question. What do you use as mulch on your tomato plants? Here in the city I only find decorative mulch and I heard that is not good for veggie plots.

10 years ago

I add egg shells to my compost, foliar feed with Epsom salts, and use bone meal as a regular soil additive... but I have never heard of using aspirin as a natural rooting hormone! And, I like the idea of adding extra "help" to the planting hole for transplants... Thanks for the tip!!

Amanda
10 years ago

By aspirin, you mean ASA but what strength? Regular (325mg) or baby (81mg)? Uncoated (I would presume)...don't want to over- or under-dose my tomatoes 🙂

sherri burkett
10 years ago

Are you sure bone meal is healthy? I was thinking of using it for the nutritional benefits until someone told me it is made from animals that may have had cancer and other sicknesses, including mad cow. Is this absurd or not?

Rebecca
10 years ago

I have feed eggshells to my hens for years. I break them and just toss them out right away to them. Some people say that encourages them to eat eggs but never in over 30 years have I had egg eating hens. They seem to know the difference between a firm whole egg and broken pieces of shell. And the egg shells never last uneaten long enough to develop bacteria.

vicki
10 years ago

I made a dry recipe with epson salts and another ingredient(bone/corn meal??). I can't remember the other ingredient or the measurements. Can you help me with this? Thank You

10 years ago

Yeh! Another great use for eggshells. I already use them in my worm bin so they become compost there and also help the worm's digestive system.

vicki lynne jordan
10 years ago

can u use the tomato fertilizer for peppers?

Carole
10 years ago

Hi, I talked with a lady that had been gardening for many years and she used a handful of the cheapest dry dog food at the bottom of the hole when planting tomatoes, said they were 2 or more times as big as without. What in the dog food would cause this?

Evie
10 years ago

Question for Bonnie--

Has running egg shells thru the blender dulled the blender blades at all?

10 years ago

Rinse and microwave the shells in a paper cup for about 30 seconds. Works well and fast. Calcium also stops blossom end rot.
Since pets and neighborhood cats like bone meal, be sure to bury it. I use it under the 4-6" of leaf mulch, kitchen scraps and newspaper I put on when putting the garden to bed for winter. I really like the idea of mixing the amendments together so all the good things go into the soil at once.

9 years ago

What kind of mulch do you use, bark, leaves, hay, or pine straw? I use leaves from my many oak trees, in my flower beds, because its free, but are leaves ok for my raised vegetable garden?

Cathy
9 years ago

What mg of aspirin do you use?

Kenny
9 years ago

How much chicken manure do you use.

Ann
9 years ago

Have you ever used or heard of using ground cinnamon as a rooting hormone? Was considering using instead of aspirin, any thoughts?

9 years ago

Nice recipe. It has a little bit everything you need for the tomato plants ... have you ever considered adding in some fish emulsion?

Amy Osborn
9 years ago

Just bought some tomato plants-and this will be a perfect recipe to help them grow into Monsters-It just seems like my tomato plants could use this help. I am going to try it this weekend.

Bebe
9 years ago

Thanks for the recipe!! Will definitely try it. I mix Epsom salt in a sprayer also, have had great results with it boosting size of tomatoes and peppers we produce!

9 years ago

Thanks to all really gd info. I have grape tomato plants that reseeded themselves. There was a cluster, split them, now have 10 plants. Wish me luck!

BratMunchkin
9 years ago

Your recipe sounds interesting.I am keen on trying it on my mortgage lifter tomatoes. but i do have some questions tho. i sowed those tomato seeds last March2013.Now they are around 7 Ft. tall,supported all 10 plants with stakes.I've treated the soil with chicken manure,fresh kitchen scraps (any & all fruits&veggies i can get at any time), epsom salts, fish emulsion (10ml/5 liters water). this compost i did at the same time i sowed the seeds on pots. after 6 weeks, i transplant the tomato plants into the treated soil. Plants had first blooms last June, its just a few blooms yet the blooms were big. But before the flowers bloom, they dry out and just fell off, one by one. This frustrates me. Last week, new blooms started to show and i wish not to be frustrated again. do you think your fertilizer recipe, i can mix it in a pail of 5 liters of water,10ml fish emulsion (this acts as substitute for bone meal-hard to get here in kuala lumpur), some fresh blended bananas and alfalfas. but i do not have idea on to how much chicken manure needed to add into 5 liters of water, highly appreciate your thoughts on this.

BratMunchkin
9 years ago

Hi Shannon,
Thanks for replying, But what do you think is best to replace bone meal then? I've called up every single hardware, garden shop & supplier here in Kuala Lumpur but to no avail,I could'nt find not a single one.Thanks again.

BratMunchkin
9 years ago

Hi Shannon,
Just got your response right now, and still I didnt find any bone meal in town.What I found and bought was a bag of ESPOMA TRIPLE PHOSPHATE FERTILIZER. It says 0% Nitrogen, 45% Phosphate & 0% Potassium. do you think this is good enough?. I've cracked 3 dozens of eggs and now all out under the sun for drying. Epsom Salts are more than ready. Now, there's another issue that I faced with, there's no available 85mg of Aspirin that I can get here ( Malaysia sucks most of the time ). I bought 100mg's coz thats the only thing available over the counter. I am not even sure coz the pharmacist asked me if its for BLOOD THINNING or FOR PAIN. yet they only have the one's for blood thinning. I am thinking of reducing the aspirin tabs into 10 instead of 14 from your recipe. Once the eggshells are ready, I'm gonna follow your recipe and mix it with 2 liters of fresh blended banana. the banana peels i'll burry them around the tomato plants and cover with a handful of soil. do you think this will work?.. I am really desperate to see the tomato flowers turns into red tomatoes!!.

Sue
9 years ago

I read with interest your concoction for monster tomatoes plants, but it's all about tomatoes, not plants. What is your success with producing more than a great plant? I am interested in increasing my yield with every season! Thanks.

BratMunchkin
9 years ago

Hi Shannon,
Apologies for my late reply, we had a long holiday here recently. Anyway, I started to use your "monster fertilizer" on the 6th August, and just after 2 days, I saw some good changes tho. the leaves looked more healthier and saw much more bigger blooms as well. I was away from home from 9th-12th August. and i just got back early this morning, surprised!!!!...some blooms are now flowers...hahaha...tho I was dog tired from holiday trip, ( barely had 4 hours sleep and now at work!) the flowers made me smile.YOUR MONSTER FERTILIZER WORKED LIKE MAGIC!!!!..and the good thing about it is i used a little of the banana puree with monster fertilizer on Habanero seedlings & Jalapeno seedlings & Eggplant seedlings and Kale, Rocket Salads, Red Mustard, Broccoli, spinach, Thai & Red Basil, Marigolds that I have and they kindda like it tho.And let me share to you a thread that I found from the web about aspirin as fertlizer. the information is actually amazing!.
http://www.fivedockorchids.com/Aspirin%20and%20Growing%20Orchids.pdf

BratMunchkin
8 years ago

Hi Shannon,
The monster fertilizer is working just fine,tomato plants looks more healthier, there are more blooms this time, and blooms turns into flowers but that's just it!!..I've tried electronic toothbrush as alternative pollination as i dont see any bees around. But flowers just turned dry and fell off!!..what do you think could possibly go wrong this time??

BratMunchkin
8 years ago

Hi Shannon,

How to lessen the nitrogen from soil?..I'm getting crazy with those tomatoes really.

BratMunchkin
8 years ago

Today I came home from work and saw all 15 flowers nicely sleeping on the soil...they've fallen off!!!..and now I can see some buds sprouting again..this is gonna be the 3rd cycle of not seeing any single tomato at all..just some dead..dried and fallen flowers..so frustrating and depressing that i feel like just cutting all tomato plants and sow again..perhaps mortgage lifter tomatoes isnt the right tomato variety that i could grow here in tropical malaysia!!!..there must be something wrong..not the cold temperature then, cameron highland which is thousands feet above sea level produces the best tomatoes,strawberries and teas here, temps can be no more high than 77'F and nightime can go be as low as 48'F..i wanna grow tomatoes so i can have fresh from the pick tomatoes of my own but looks like having them would cost my pocket a lot more before even 1 single tomato will appear..as to when..i got no idea!!

BratMunchkin
8 years ago

Hi Shannon,
I think I know now the "culprit" causing too high nitrogen, my very own fault. I'm raising kitchen scraps compost in the same raise bed where my tomatoes are!!. I figured this out today when I gave the compost a little dug & turn, has seen and wondered where the roots came from, pointed none but from tomatoes. The roots has grown about 3 feet more towards the compost. And so I dug up all out the compost soil and kept them in 5 separate buckets. Yes, some roots were cut tho as I dont have any choice. I hope that removing the compost pile and soil will help my tomatoes to produce more healthy buds..turns into flowers and finally so..tomatoes. Yet also I think high nitrogen and your monster fertilizer are sending my basils crazy!.They never stop from producing flowers a lot!. And how I wish my tomatoes will just like be the same way the basils does.

BratMunchkin
8 years ago

I just killed those useless tomato VINES..i've decided to do so because I dont see any positive results anymore..it's just a waste of time and money. And now i'm treating the soil again..

Charles G Foster
8 years ago

We are on the same page with the chicken poo. I also cut water oak leaves and put this mix in about the first of Feb. Last year I put down black landscape to experiment with...I place the holes 3 feet apart...it also allow me to plant early...the plastic warms the soil. I went from 6 or 7 to the cluster to 10 to 12...the plastic made the difference...I also plant celebrity tomatoes they get from 8 to 12 feet...I have pictures of last year crop if anybody would like to see proof.

roy
8 years ago

think...willow trees grow very fast....so aspirin is likely to be a good root hormone
think...preventing diseases is a lot easier than fighting it later...like us....eating healthy grown food (hi brix) and little sunshine will keep us healthy...

Wallace McBride
8 years ago

Charles, I would love to see those pictures of your Celebrity Tomatoes.

Thanks, Wallace

Claude
8 years ago

I used regular rooting powder instead of the asprin , I used about 1/2 teaspoon to the measurements of bone meal, epsom salt, egge shell's , I have an old coffee grinder and i used it to grind my egge shell's to a consistency of powder sugar. Wow!! what a surprise to my tomatoe plant's , my neighbor said she had never seen tomatoe plants grow that big and strong. I also use it on some Hen and chick plants and they have grown as big as soft ball and now are blooming. Thanks for the info on this amazing fertilizer.

Wallace McBride
8 years ago

Shannon, where is the source for nitrogen for the plants. I notice most fertilizers for tomatoes usually contain 5, 8, or 10 percent nitrogen. I am still going to try your recipe. Just curious about the nitrogen. Thanks.

Wallace McBride
8 years ago

Shannon, I appreciate the information. I will try your recipe for sure. I will try and let you know how much sucess is achieved. Thanks again,

raghav
7 years ago

thank you sooooooooooooooo much for advicing these tips if my plant grows then that is only because of you let all the plants grow well

Dan Martin
7 years ago

Used 1/3 cup of that fertilizer as a transplant/starter for my tomato plants four weeks ago. The plants are beyond belief. The foliage is a green I've never seen before and the plants themselves are thick and very robust.

Will side-dress with another batch in two weeks.

Dan Martin
7 years ago

Made another batch and side dressed each plant with 1/3 of a cup. I prepared the egg shells by drying them out in my oven. I omitted the aspirin. One thing that I did last batch and this, I used a coffee grinder to reduced the shells to a uniform size and I also ground the bone meal and Epsom salts.

marie
7 years ago

I never wash the eggshells with soap ,only water and it never get smell.The washed water from eggshells also used for watering the plants.

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