How to Increase your Tomato, Pepper and Eggplant Harvest

Results using Aspirin and Baking Soda spray on tomatoes

How to Increase Your Tomato, Pepper, and Eggplant Harvest

After researching and testing using Aspirin and Baking Soda spray I can attest that you will increase your harvest of these nightshade plant’s fruit.

These pictures were taken after 3 weeks of using Aspirin Spray on the tomato, where when I first sprayed there were no tomatoes and very few blossoms

I had a few plants that were not blossoming and setting much fruit on for my tomatoes so I started spraying with a mix of Aspirin and Baking Soda within a few weeks, they were not only blooming more but also setting on tomatoes.


1 gallon of water

600 mg aspirin tablets (uncoated aspirin)

2 T Baking Soda

Blend aspirin until dissolved in 1 cup of water, and add baking soda blend again before mixing with the gallon of water.

Treating Plants

put aspirin/baking soda mixture in a sprayer and spray plants (douse the plants when spraying).  It is alright to spray leaves, blossoms, and fruit with the mix.  The leaves will absorb the mixture and send energy to defend themselves.

You should spray every 7-10 days and you can start after the plant is established usually beginning in early summer.  Apply the spray in the morning so that it has time to dry and not in the heat of the day.  If you live in a cool and more moist climate you can spray more often to reduce the chance of diseases.

Why does this work

The spray tricks the plant into thinking it is under attack by pests and diseases and so it produces a hormone similar to salicylic acid found in aspirin.  This has the plant go into high gear to defend itself blossoming and setting on fruit.

The plants will start producing more blooms and fruit within a few weeks.

What Plants can you use this on

The Aspirin spray works on all nightshade plants, which are tomatoes, peppers, and eggplants.  It can be sprayed on other vegetable plants without harming them but it will not improve those plants performance.


I have 4 plants that were not producing many blossoms and were not setting on any fruit until I sprayed them with the aspirin and baking soda mix.  After 14 days and 2 sprayings, they are producing blossoms and fruit even though we had a long hot spell with temperatures above 90 degrees and several days over 100 for over a week.

I have tested it on my tomato plants and now will start using this mixture on my peppers and eggplants to see if I get similar results.  I will post these results in a few weeks to let you know the changes.  (See results below)

Throughout the summer I used the spray every 10-14 days on my plants and as a result, I had one of the largest crops of tomatoes and peppers I have had.  I also noticed fruit setting on my eggplants after applying the spray.

The fruit was setting on at a much better rate than before when compared to those plants I did not spray with the aspirin solution.  I would highly recommend using this spray on your tomatoes, peppers, and eggplants to increase fruit setting on.

I hope you found this trick in How to Increase your Tomato, Pepper, and Eggplant Harvest beneficial and part of your gardening routine going forward.

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