An example of this is high-calcium limestone, applied to correct the soil pH at least two months prior to planting. Water your tomato plants with it. Dig or till the lime into the top 1 foot of soil. Amend your soil periodically with lime to increase pH and provide calcium. Commercial calcium sprays are available, but for an economical alternative, consider a milk spray. The first thing you should do … So instead of tossing into the trash, I put 1 tablets each per plants. In addition, tomato plants also need some nitrogen… but not too much. Tomatoes perform best when their soil has a pH level of 6.5 to 7.2. Wait until your tomato plants begin to grow. Use 3/4 cup of lime per plant, and work it into the top 8 inches to 1 foot of soil. As your eggshells start to break down, they provide slow-release calcium, restructure the soil to make it porous and improve your soil's drainage. Use a hand trowel to mix the eggshell powder into the soil. Add Epsom salts to restore the calcium in the soil for your plants. Place your collected eggshells in a blender and blend until you have a dry powder. Blend more eggshells into a powder. Most soils that have been cultivated for some time have enough calcium to meet the needs of plants. If you provide too much your plants will be big and bushy and green but you won’t have any flowers and therefore no fruit! Perform a soil test to discover if your soil is deficient in calcium. When planting tomato plants, you’ll need to make sure that you give them all the proper nutrients you need, and it isn’t just the usual water and sunlight.They will also need other vitamins and minerals, including calcium, which can help prevent blossom-end rot. Eggshells contain such an abundance of calcium that they can be used almost like lime, though you would need a lot of eggshells to make a measurable impact. Late in the season use an Epsom salt spray to increase tomato and pepper yield and keep plants green and bushy; early in the season add Epsom salt to the soil to aid germination, early root and cell development, photosynthesis, plant growth, and to prevent blossom-end rot. These help prevent or correct low calcium levels in tomato plants. All Rights Reserved. It also may cause blossom-end rot, in which sunken dark-brown or black spots appear on the lower ends of tomato fruits. per 100 feet of tomato plants or 340 grams per plant by tomato producers. If you didn’t add lime in fall or early spring, then do so just before you plant the tomatoes, though the lime won't be as effective as it would have been if given more time to incorporate into the soil. With Soil Additives. Good garden soil should have a pH between 6.5-7.2. Tomato plants require much more calcium than other fruits and vegetables. What Is the Amount of Calcium to Add to Tomato Plants? Using wh… A former master gardener with a Bachelor of Arts in writing from Houghton College, Audrey Stallsmith has had three gardening-related mysteries published by WaterBrook Press, a division of Random House. If your ground is extremely acidic and hasn’t been limed for several years, then an option is to increase that amount to up to 2 cups per plant. For instance, it loosens soil to allow it to absorb more water, and it increases the strength of a plant's cells. Adding Calcium Late. Royal Horticultural Society: Lime and Liming, Fine Gardening: How to Grow Tomatoes in Containers. Calcium is an essential secondary nutrient for all plants. Copyright Leaf Group Ltd. // Leaf Group Lifestyle. Wait until your tomato plants begin to grow. Multivitamin / Calcium pill One spring, I happen to have some old and expire multivitamin and calcium pills. Foliar calcium sprays contain calcium nitrate or calcium chloride. Use soil additives to enhance its calcium content. If your soil's pH level is lower than that range, which means it is more acidic, then add garden lime, also known as calcium carbonate, to your vegetable bed's soil in fall. How Often Should You Add Calcium to Zucchini Plants? How to Add Calcium to Plants Using Epsom Salt Step 1. Eggshells contain 95 percent calcium carbonate making them an ideal calcium additive. After blending 9 parts water with 1 part skim or powdered milk, put the liquid in a clean spray bottle. A vital part of cell wall structure, it helps other nutrient elements move through the plant and strengthen it. If your tomatoes have already developed blossom-end rot, you can provide more balanced nutrition using a foliar spray of calcium nitrate mixed with water. Calcium absorption problems can be prevented by mulching the soil around the tomato plants when it is damp, using straw, plastic or newspapers to keep the soil moisture level consistent. She has received awards for being a top content producer. The latter problem is most common early in the growing season, when tomato plants put out lots of new growth, and the problem may correct itself later. Repeat every two weeks during the growing season. She has produced thousands of articles for online publications such as Demand Studios, GoBankingRates and WiseGeek. Calcium promotes the healthy growth of plants in a wide variety of ways. Soil that is not already rich in calcium will allow disease such as blossom end rot to infect your tomato plants. Sprinkle the powder around the tomato plant. One tablespoon is enough per plant. Plan the perfect garden with our interactive tool →, Colorado State University: Improve Your Garden Soil This Fall, University of California Statewide Integrated Pest Management Program: Blossom End Rot, UC Davis Good Life Garden: Tomato Troubles, University of California Agriculture & Natural Resources: Growing Tomatoes in the Home Garden, North Carolina Cooperative Extension Service: Blossom-End Rot of Tomatoes in the Home Garden, Journal of Horticulture and Forestry: Uptake of Calcium Nitrate by Tomatoes, University of California Agriculture & Natural Resources: Fresh Market Tomato Production in California, University of Missouri Extension: Growing Home Garden Tomatoes.