« Back to all News

Why are the flowers falling off my tomato plants

My tomato plant grew to over 5 feet high, and produced many flowers, not one single flower turned into ANY type of tomato. I was extremely disappointed as this is the one vegetable I love to eat fresh.

They did not lack water as I made sure they were always maintained. I also gave them Miracle Grow tomatoe fertilizer and bought a special dirt to plant them in when I recieved them. As I mentioned, this is the one thing I look forward to every year. I look forward to your response to learn why I never got any tomatoe. As soon as the flower would fall off, normally this is when the tomato begins growing, nothing came. I appreciate your time and help. Thanks, Darlene

3 Responses to “Why are the flowers falling off my tomato plants”

  1. Karen says:

    Darlene,

    I’m very sorry you did not get to enjoy lots of great, juicy tomatoes this year. Without having witnessed your season, I am going to take a stab at this and label it a condition called blossom drop. The flowers of the tomato are actually pretty picky about temperature and pollination and they vary from variety to variety. Generally they will not pollinate or develop if daytime temps exceed 92 degrees and nighttime temps are above 68 degrees. Temperatures falling below 55 degrees in the evening can also inhibit pollination, which is why it is important to not set them out too early. It seems the heirloom or older varieties are more sensitive to temperature extremes.

    If you’ve had an extended period of warm days, it will aggravate the situation, as will hot, dry wind and low humidity. Dry soil can also cause poor fruit-set, so make sure that you mulch the plants and water deeply once or twice a week.

    Another factor might be too much shade: make sure they are receiving at least six hours of full sun daily.

    You mentioned your tomato plants were quite vigorous growers and that you added a “special” soil and fertilized them often. There is also the possibility that you have given them way too much nitrogen, meaning lots of plant activity but few blooms that fruit. Even though Miracle Grow fertilizer is supposed to be balanced for the plant, it’s 18-18-21, meaning high nitrogen and high phosphorous and even higher potassium. The nitrogen makes the plant grow lots of leaves, the phosphorous is for blooms, and the potassium is for root development and photosynthesis. Plus, I am guessing the soil was a compost or manure mixture which will also supply lots of nitrogen to your plants. It’s very possible you may have thwarted bloom development by trying to be nice to the plants.

    Add your compost to your soil this fall. Mix it in thoroughly and let it sit over the winter. Next spring add a small amount of Plant-tone 5-3-3 to the garden bed when you prep for planting. Add some organic mulch around the plants and then just let them grow, water as needed when nature doesn’t provide enough moisture, and fertilize sparingly with a higher phosphorous fertilizer to encourage blooming, adding nitrogen only if your plants are looking a little pale or yellowish or are not growing vigorously. If the temperatures are above average, back off the chemical fertilizers and switch to a milder organic variety. The hot weather will cause the tomato plants to be under stress and they can’t absorb the nutrients properly.

    Oh yes: stop being so nice to them :)

    Hope this helps, and better luck next summer.

    Karen

  2. jstutzman says:

    Dear Darlene,

    I can’t tell you how much I appreciate your feedback, and I share in your disappointment. Seeing your plants grow to five feet tall, and then not produce fruit, had to be frustrating. I didn’t hear of this problem from anyone else, so I don’t believe you received faulty plants, but I also don’t like knowing that you’re an unsatisfied GHS customer.

    I hope you’ll give us another try next spring. I believe in our plants and I know they’re superior to those started in typical commercial greenhouses. If our Master Gardener’s hunch is correct, try monitoring your soil’s balance of nutrients, add mulch and compost now to get your garden ready for next season, and make sure to use fertilizer in harmony with your soil needs.

    To win you back as a happy GHS customer, I’d like to offer you a $– gift certificate for any purchase from our site. If you use it toward tomato plants in the spring, please send comments about their production throughout the season. I will be anxious to hear of your success in nurturing our plants to outperform anything you’ve ever grown.

    Thanks, Joe

  3. Darlene says:

    Hi Joe!

    I would like to thank you for your genuine concern, and I would be happy to give it another try in the spring. As mentioned previously, I purchased a special soil for these plants as I do every year for my tomatoes, miracle grow tomato fertilizer, and they were not planted in the ground, but in 5 gallon pots. I really do cherish my garden fresh tomatoes each year, and give them preferential treatment. I am particular to the “ugly” tomatoes, and look forward to giving it another try in the spring and perhaps a few other items. Again, thank you for your concern, and your outstanding customer service. I will be sure to recommend your website to others. Have a warm and healthy winter.

    Sincerely, Darlene

Leave a Reply

 

Discount Coupons
Ask a Master Gardener
Blog Archives
  • 2014
  • 2013
  • 2012
  • 2011
  • 2010
  • 2009
  • 2008