How to identify blossom end rot in tomatoes
Just as your tomatoes start to ripen, you notice a mushy, sunken spot at the bottom of the fruit. Blossom end rot starts as water-soaked spots on the blossom end of the fruit, then quickly darkens, sinks in and turns leathery. While there’s no saving the affected tomatoes, the rest of your crop still has a chance.
What causes blossom end rot?
Blossom end rot is caused by a calcium deficiency that happens when plants can’t absorb enough of this essential nutrient. It’s most common on early-season tomatoes or after an extremely dry period in summer. Even if the soil has plenty of calcium, inconsistent watering can make it harder for plants to take it up, leading to dark, sunken spots on the bottom of the fruit. Too much nitrogen, root damage from rough planting or fertilizer burn can also interfere with calcium uptake.
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How to solve blossom end rot in tomatoes
Consistent watering is key. Water deeply whenever the soil is dry. A layer of mulch helps retain moisture and regulate soil temperature, reducing stress on the plant. Avoid high-nitrogen fertilizers, and be mindful when planting to prevent root damage. If your soil dries out quickly, consider using soaker hoses or drip irrigation to maintain steady moisture levels. Since calcium uptake depends on healthy roots and a steady water supply, these simple steps can make all the difference in keeping your tomatoes firm and blemish-free.
