The best thing to put around tomato plants is an organic mulch like straw, shredded leaves, or grass clippings. This retains soil moisture, suppresses weeds, and prevents soil-borne fungal diseases from splashing onto the plant's leaves.
Sprinkling baking soda around tomato plants is a common, often debated, gardening hack used to increase the sweetness of the fruit and reduce fungal disease. It works by slightly lowering soil acidity (raising pH) and, when used in sprays, creating an alkaline surface that hinders fungi like powdery mildew.
Straw: Straw makes great mulch for tomatoes. But stay away from hay, as it's full of seeds. Spread a 3-6” layer around tomatoes. Newspaper or Cardboard: Newspaper is best for blocking weeds.
The grounds help speed decomposition and add nitrogen that your finished compost (and eventually your tomatoes) will appreciate. Don't dump entire bags of grounds in one spot. Layer them throughout your compost, mixing well with other materials.
Baking soda can sweeten tomatoes and deter pests, but must be used sparingly to avoid harming plants. A light sprinkle around the base wards off slugs, ants, and aphids, and a diluted spray mix helps prevent fungus.
Epsom salt can help tomato plants thrive if they have a magnesium deficiency, but overuse can harm them. Always test your soil before using Epsom salt to ensure your plants truly need the extra magnesium.
Never plant fennel, brassicas (like cabbage, broccoli, and kale), potatoes, or corn near tomatoes. These plants can stunt tomato growth, compete aggressively for nutrients, or spread devastating diseases and pests.
The best homemade tomato fertilizer is a nutrient-rich, liquid compost tea. It delivers a gentle, balanced boost of essential macronutrients (nitrogen, phosphorus, and potassium). To make it, steep a shovelful of aged manure or compost in a 5-gallon bucket of water for 24 hours, strain the liquid, and water your plants.
Yes, eggshells are great for tomato plants. They are rich in calcium, which tomato plants need to build strong cell walls and prevent "blossom end rot" (a condition that causes black, sunken spots on the bottom of the fruit).
To give your tomatoes the best start, place a mix of compost (or worm castings), a handful of bone meal (for phosphorus), and a tablespoon of Epsom salts (for magnesium) at the bottom of the hole. Always cover these amendments with an inch of dirt before placing the plant in so the roots aren't directly burned.
10 Best Companion Plants for Thriving Tomatoes
Use 10–20% horticultural vinegar (stronger than kitchen vinegar) in a spray bottle. Apply on a sunny, calm day, spraying only the weed foliage to avoid drift onto your vegetables. Target seedlings and small weeds.
To grow bigger tomatoes, maximize the fruit's size by pruning excess branches, restricting the plant to just one or two main stems, and plucking off early blossoms. This diverts the plant's energy into sizing up the remaining tomatoes rather than spreading resources across too many fruits.
Hydrogen peroxide can be highly beneficial for tomato plants if used correctly. It is a cheap, effective, and readily available remedy used to control fungal diseases, manage pests, and aerate waterlogged soil. However, because it is a strong oxidizer, using too much can damage your plants.
To protect your tomato plants, use Neem oil for common pests like aphids and whiteflies, or Btcap B t𝑩𝒕 (Bacillus thuringiensis) specifically for caterpillars and tomato hornworms. For a quick DIY option, mix 1 teaspoon of mild liquid dish soap and 1 cup of vegetable oil per gallon of water.
Wrong: Although tomatoes are heavy feeders, fertilizing the crop too much can be fatal. Especially when the seedlings are still very small! Too much nitrogen means that the plant has to put more energy into leaf growth - but the fruits fall by the wayside. They suddenly ripen much more slowly and have less flavor.
Regardless of what you might read or see in nursery promotions, planting tomatoes in October or November is not a fruitful experience, literally. The night temperatures are too low for the flowers to set fruit. Tomatoes planted in August or early September will grow quickly in the warm soil, warm nights and long days.
I'm sure you have heard the old saying that snow is “poor man's fertilizer.” The saying comes from the idea that snow storms deliver small but meaningful nutrients to the soil and there is real science behind that. As snowflakes fall, they collect nitrogen and ammonium and release them during the melt.
It is important to make sure the tomatoes receive sufficient water during the season. The soil should be soaked 6 to 8 inches deep at 7-day intervals. Mulches such as wheat straw or composted leaves around the tomato plants will prove to be a real asset in conserving soil moisture during July and August.
Urea fertilizer is the most important nitrogenous fertilizer. There are two main reasons for urea fertilizer to be the king of fertilizers. Firstly, it has high nitrogen content about 46 percent. Secondly, it is a white crystalline organic chemical compound. It is neutral and can adapt to almost all the land.
When growing tomatoes, avoid planting before the danger of frost has passed, as cold temperatures stunt growth. Do not plant shallowly; bury stems deep in the soil for stronger roots. Never water from above—wet leaves invite blight—and avoid over-fertilizing with nitrogen, which creates bushy leaves instead of fruit.
When tomato plants grow large and lush but produce no fruit, the most common culprit is a nutrient imbalance (too much nitrogen), extreme temperatures, or poor pollination.