Tomato plants are hungry vines, gobbling up high levels of both water and soil-borne nutrients to support foliage growth and fruit production. For the biggest tomato yield, supply each plant with regular fertilization. When it comes to picking a fertilizer, Miracle-Gro products come recommended by horticulturist Ron Smith, who says brands like Miracle-Gro will "improve growth and fruit set" in your backyard tomato garden. The exact amount of Miracle-Gro you need varies depending on the product you use.
Miracle-Gro offers a water-soluble 18-18-21 plant fertilizer specifically tailored for tomato plants. It's designed to be mixed with water at a rate of 1/2 tablespoon for every 1/2 gallon of fresh water. Stir the mixture until the granules are dissolved, then pour 8 ounces of the mixed fertilizer at the base of each tomato plant. Repeat the fertilizer application every one to two weeks.
Some gardeners simply don't have the time to constantly tend and fertilize their tomato plants. For those who want a more hands-off take on fertilization, consider a continuous release product. Instant of providing instant, soluble nutrients, continuous release products let the nutrients slowly trickle out for long-term feeding. Miracle-Gro's continuous release tomato food comes in a 9-4-12 formulation and fertilizes your tomato plants for 90 days. Shake it out at a rate of 2.25 tablespoons for every 2 square feet of your tomato garden.
If you have many other vegetables besides tomato plants, you may not want to buy a tomato-specialized product. Instead, use an all-purpose vegetable fertilizer that you can use throughout your garden. Spread Miracle-Gro's 24-8-16 all-purpose product at a rate of of 1/2 packet for every 250 square feet. If you prefer to apply your fertilizer via watering instead, mix 1 tablespoon in every gallon of water and apply 8 ounces to each tomato plant.
As its name suggests, this 7-1-2 Miracle-Gro product comes designed for people who want to rear chemical-free tomato plants. It's 100 percent organic and also works in a slow-release format, feeding your tomatoes for 60 days. Spread it on your tomato garden's soil at a rate of 1.5 pounds for every 52 square feet of your gardening area