Ask a Question
Notify Me On Question Update
Email this Question
Why are tomatoes turning black (dark) from the bottom up when they begin to ripen. They are also dark on the inside.
Rate This FAQ
The condition that you are seeing is called blossom end rot. Blossom-end rot is a physiological disorder caused by a calcium deficiency in the young fruit. Utah soils have plenty of calcium so even though technically it is the problem, the real issue is fluctuation in the amount of water available to the plant that makes the plant unable to transport the calcium as needed. Tomatoes, squash, peppers, eggplants and melons are all vulnerable to this problem. The good news is that normally only the first few fruits to ripen are damaged.
There are a couple of different things that you can do to help prevent this condition. Overwatering your plants can aggravate this condition, especially if your plants are in a heavier clay soil. Keep a close eye on how much water you apply and how much moisture is in the soil. Mulching around your plants can also help to reduce the amount of water lost to evaporation and can help keep soil moisture levels more consistent. In addition, over fertilizing your plants can also contribute to this condition. I have included a link below to our tomatoes fact sheet.
Submit Your Suggestion
Other Questions In This Topic
- We have been putting the dog poop in the composte pile. Is this going to be bad for our composte or for our garden?
- when should I spray a cherry tree to get rid of the little white worms. What is the best product to use in controling this problem
- Why do my tomatoes have brown spots on the bottom?
- Tomato tutorial
- I have just discovered an ant colony in my outdoor herb pot. I noticed soil build up around a couple of the herbs, thyme and rosemary and also soil build up around the drain holes. This pot is 20 inches across and 15 inches deep. How can I get rid of the ants without damaging the herbs or poisoning my family? Thank you.
- Where can I find a vegetable garden planting schedule guide for the Salt Lake Valley area?
- What is the secret to getting carrots to germinate?
- I understand you have a service where you email spraying and care schedules to homeowners for home gardens and fruit trees. If so I would like to sign up. Please send me the info. Thanks, Mike