The Q&A Archives: tomato blossoms

Question: I have a tomato plant (Brandywine) that is in a planter. This pot is about a 2 gallon pot with a water resevoir on the bottom. My problem is that each time that my plant puts out blossoms as soon as the flowers start to fade shortly after the blossoms yellow and drop. They are pollinated as I have seen bees around several times and have also hand pollinated but to no avail. I also thought that might be too much water because of all the rain so have emptied out h2o, but no help.

Plant is not root bound, and have successely used same pot sever times in past. Plant has mostly green leaves and looks overall healthy. Has a few more dying leaves than should but is not over much or under productive of folige ether way. Have tried to explain as best I could and would really apperate any help or advise that you could give.

Thank you for your time and consideration and any help or advice you could give would be both helpful and followed.

Answer: I don't think you're doing anything wrong with your tomato plant. Tomato blossoms will drop off when temperatures fluctuate below or above the required temperature zone for any extended period of time. In order to hold blossoms and set fruit, tomatoes need night temps above 55 degrees and daytime temps below 90 degrees. Blossoms will also dry up and fall off if plants do not receive enough water, if they're getting excessive nitrogen and receive too much shade. Regularly monitor soil moisture levels, especially during hot spells. The top inch or two of soil can be allowed to dry out, but consistent moisture should always be available to the roots. You'll just need to be a little more patient with your plant. I'm sure the right combination of temperature and insect activity will occur and you'll eventually have some luscious tomatoes to harvest. Enjoy!

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