So what is blossom end rot? Essentially, blossom end rot is a brown or black leathery spot that forms at the bottom of a tomato. While it looks like a classic sign of disease, this is actually caused by a lack of calcium brought on by dry conditions in the soil. In addition, inconsistent watering also contributes to blossom end rot.  Tomatoes usually grow at a rapid rate, and need calcium to ensure healthy development. When there are low calcium levels in the soil, the fruit’s tissue breaks down and forms the sunken lesion at the bottom. Since that’s where the tomato’s growing point is, any sign of deficiency will show up in that area.  Luckily, there are a few simple things you can do to prevent tomato blossom end rot, and save your beloved fruit. So, if your ripe tomatoes are ruined by unsightly blotches, here’s how to get rid of tomato blossom end rot for a healthy harvest. It’s also handy to know how to prune tomato plants using the best pruning shears to keep them in top shape. We’ve also covered how often should you water tomato plants and when should you do it?

How to get rid of tomato blossom end rot 

Sadly, once blossom end rot happens to a tomato, there’s not much you can do to save the fruit. Eventually, the rot will cover the lower half of the developing tomato, leaving it flat and inedible. Remove all affected tomatoes and throw them into the compost, before following these steps to get rid of tomato blossom rot.  

1. Check your soil condition

2. Add a source of calcium to soil  

Since tomato blossom end rot is caused by calcium deficiency,  add a source of calcium to the soil if needed. Homemade, organic sources of calcium include bone meal, ground oyster shell or finely crushed eggshells directly into the soil around tomato plants. This will help to maintain a steady calcium level during the growing season. Bone meal is particularly high in calcium and phosphorus, which are both essential nutrients for plant growth.  

3. Water tomato plants well  

Water tomato plants daily, so the soil gets plenty of moisture to prevent blossom end rot. During a heatwave or in warm regions, you may need to increase your watering to twice a day. Experts recommend watering to a depth of six inches to give the roots a deep watering, but don’t overwater. As well as underwatering, too much water could also lead to rot. In any case, it may take a few weeks of consistent watering to see results, so don’t despair. 

4. Apply mulch to base of plant 

Add a layer of 2 to 3 inches of organic matter over the soil around tomato plants. Mulch helps to lock in moisture, keeping the levels stable for your tomato plants to thrive. Other good sources of mulch include straw, grass clippings, peat moss and shredded leaves. This will also keep weeds at bay, so you won’t have to keep removing dandelions.

5. Use a tomato fertilizer 

In addition, nourish your tomato plants with a liquid tomato fertilizer that includes calcium. Before fertilizing, always make sure your tomato plant is watered well. If the soil is dry, it can absorb too much fertilizer, and burn the plant. After watering, spread the fertilizer on the ground approximately 6 inches away from the base of the plant. Fertilizing too close to the tomato plant can lead to fertilizer running off onto the stem, and burning the plant. 

Tips for growing tomato plants 

Water tomato vines regularly for at least an inch of moisture each week, and more in the summer Ensure you prune tomato plants often to boost new growthStakes or a trellis will support your tomato plants and keep them off the ground. These also help them grow vertically, and save space in your backyard  If you don’t have a garden but are using outdoor planters, avoid plastic pots. These prevent natural air circulation to the plant which can result in root damage or mold. Terra cotta pots are good for maintaining tomato plant growth

Before you get pruning, check out the 7 pruning mistakes you never knew you were making. And if you’re new to the world of growing food, check out the 9 easiest vegetables to grow for beginners and see our guide on how to plant potatoes and when to do it. If you want a home project, you should also check out how to grow an avocado tree from a seed.    

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