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32-fl oz Rot-Stop Blossom-end Rot Preventer

Ratings & Reviews for Bonide 32-fl oz Rot-Stop Blossom-end Rot Preventer

3.9
107
Review
 3.9 out of 5
107 Reviews


60% Recommend this product

Ratings may include incentivized customer reviews.

What Customers Are Saying

The product had mixed results, with some customers reporting it effectively stopped blossom end rot on their tomatoes, while others experienced severe plant damage or even complete destruction. The product seemed to work better on certain tomato varieties, and proper application technique was crucial to avoid plant damage. Overall, the product carried a high risk of damaging or killing plants if not used extremely carefully.

Customer review summary generated by AI, including incentivized reviews.
107 Customer Reviews

Zero stars was not an option.

Would Not Recommend

Doesn’t work. Easily burns plants.

August 7, 2025
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Start early adding calcium or bone meal to preven.

Would Recommend

So far it seems to be ok- true test will be if I get tomatoes this year without blossom end rot.

July 30, 2025
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Best value and availability

Would Recommend

Product easily applied and spray bottle application

July 14, 2025
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Dont know...

Only used once so far, & cannot tell if its helping me. I still have fruit of the vine with end rot.

July 13, 2025
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On time

Would Recommend

Everything was exactly like I ordered

July 11, 2025
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Root rot

Would Recommend

Solved my root rot problem

June 28, 2025
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Do not Buy!!

Would Not Recommend

I purchased this after lots of rain and my tomatoes were developing blossom rot. I followed instructions on bottle. 20 plants dead the next day. Please research this product on Google and YouTube. Most people have same results as I did. It's devastating to see your hard work go up in smoke overnight

June 20, 2025
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Burned up tomato plants

Would Not Recommend

I bought this because my Cherokee purple tomatoes had blossom end rot. I followed the instructions and waited until the sun was down and temps were in the mid 70(s) and applied per the instructions. The next day my plants are fried… stems, blossoms, and leaves all dead. The plant was well watered before the application, so that is not the reason, even though that is the typical “Team Bonide” response. I’m sure they will say “sorry that the product didn’t meet your expectations,” but who expects ...

June 19, 2025
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Didn’t work and nearly killed our tomato plants

Would Not Recommend

We used it exactly like the directions stated. Not only did it not help with the blossom end rot it caused most of the leaves to turn yellow and fall off. We sprayed in the late afternoon on a 80 degree day. We have used another product in the past with great success but bought this one because it was premixed and we only have a couple of plants this year. I would not recommend this product and would not buy it again.

June 3, 2025
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killed all my pepper plants

Would Not Recommend

like many others I applied as the directions stated. got home from work the next day to find all 12 of my pepper plants nearly dead with the leaved dried up. I regret applying this product.

May 29, 2025
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Waiting to see

Don’t know yet if it works

May 8, 2025
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Great new product

[This review was collected as part of a promotion.] First time for me to try this product but my mom has used before and I feel it has been helpful for us this year. I love that it comes in an easy to use spray bottle and was easy to apple to the garden.

August 13, 2024

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