![]() So mulching deeply around your plants with straw, wood chips, or your other favorite organic mulch will help to lengthen the amount of time needed between watering and protect the plants from quick changes in soil moisture. Mulching helps maintain an even moisture in the soil. Calcium nitrate is a great choice for side dressing tomato plants. Instead, try using a fertilizer that is low in nitrogen and high in phosphorous. These are ammoniacal nitrogen fertilizers such as ammonium nitrate, ammonium sulfate and most all in one fertilizes like the 10-10-10 mix. But that’s will only harm your tomato plants in the end.įertilizing with too much nitrogen can also cause your plants to not absorb the calcium they need. You might be tempted to use a high nitrogen fertilizer so your tomato plants look large and bushy. Plants should not be sitting in soggy soil as this can also stress them and stop the proper uptake of calcium or cause tomatoes to split open. Make sure to water them deeply so the soil is moist down to about 6 inches (15.24 cm).ĭeeper watering encourages the roots to grow deep into the ground where the moisture level is more consistent. When the hot summer weather arrives, water your tomatoes 1 to 2 times a week as needed. It’s very important to water your tomato plants regularly to maintain a consistent level of moisture in the soil over your growing season. Tomatoes starting to ripen with blossom end rot on the bottoms. However, it’s also possible to have blossom end rot problems from cold soil, high salt levels, root damage, excess nitrogen, or the wrong soil pH. This causes the plant to not be able to absorb enough calcium for good fruit development. The main cause of blossom end rot is improper watering it can be from changes in natural rainfall or irrigation making the soil too wet or to dry. What Causes Blossom End Rot In Tomatoes? 1. Eventually, it turns into a brown, scab-like patch with a leathery texture. You can recognize this problem easily as it starts to form on tomatoes either green or ripe.Īt first, it looks like a soft, watery spot on the end of the tomato. It’s caused by a calcium imbalance happening inside of your tomato plant but it’s easy to prevent, control, and cure with the right care. ![]() But blossom end rot is a physiological problem, not a disease. When you start seeing black spots starting to form on the end of your tomatoes, your first thought might be that you have a disease problem. Blossom end rot starting to form on half grown tomatoes.
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