Peppers and tomatoes are part of the nightshade family and have similar needs for light, water, and nutrients in the garden. They can be grown together, but keep an eye on them because they attract the same pests and disease problems. Rotate their planting location in the garden every year to help keep plants well-fed and to reduce disease. If you love the idea of planting a salsa or an Italian red pepper and tomato sauce garden, you might be wondering how these plants will affect each other while growing. Here, we'll show you how to have healthy tomatoes and peppers in the same garden space, plus a few things you should consider each growing season. Can You Plant Tomatoes and Peppers Together? Yes, you can plant tomatoes and sweet or hot peppers together in the garden. Both are members of the nightshade family and have similar watering, light, and nutrient needs. Sweet peppers mature from seed to harvest in 60-90 days, hot peppers can take up to 150 days, and tomatoes mature in 60-100 days. Their similar growth period is ideal for food preparation and preservation. Growing the two vegetables in the same garden plot helps with pollination and insect control because they attract the same type of pests. You'll be able to see at a glance any issues that need addressing. 5 Tips for Planting Tomatoes and Peppers Together Prep your garden soil. Neither plant is going to grow or produce a bountiful harvest if they are grown in poor soil. Aim for a slightly acidic pH level of 6 to 7 and plenty of organic matter to provide nutrients. Don't overcrowd. If you are planting in containers, add only one plant to each 10-gallon container. In the garden, give each plant a 2-foot clearance on all sides. Skip the sprinklers. Neither vegetable benefits from frequent overhead watering that can lead to diseased foliage. Water by hand at the soil level or use drip irrigation to make sure the moisture is reaching the root systems where it is needed. Add some support. Most varieties of tomatoes and peppers will benefit from a support system of cages, trellises, or stakes in the garden. Allowing the plants to sprawl or fall over will damage fruit and block the sun for other plants. Feed to keep them healthy. These are fast-growing, heavy feeders that require plenty of nutrients to produce vegetables. Side-dress with fertilizer when fruits first form. 6 Common Mistakes to Avoid Limiting air flow. If you've planted seedlings too close, air flow and growing space become limited which could lead to disease and rot. You can help the situation by pruning away the bottom leaves and suckers on tomato plants to increase air circulation. Planting too soon. Everyone is eager to plant a garden on the first warm spring day, but planting before the chance of a late spring frost has passed will stunt or kill your peppers and tomatoes. Selecting the wrong planting location. Both plants need full sun to thrive, so make sure you account for shadows of fully grown plants. Not planting disease-resistant varieties. Whether you start your plants from seeds or purchase seedlings, look for disease-resistant varieties if possible. Forgetting to rotate crops. Pests and diseases can build up in the soil near plants, so rotating the locations where annual vegetables are planted can reduce pest and disease problems. Not harvesting regularly. Peppers and tomatoes mature quickly, so you should check the garden every day. Leaving overripe fruit on the plant reduces production and invites pests (including rabbits) into the garden to enjoy the fruits of your labor. Pests and Plant Diseases to Look Out For Since tomatoes and peppers are part of the same plant family, they do attract many of the same pests and succumb to the same diseases. Common pests include cutworms, hornworms, aphids, spider mites, and tomato fruit worms. Insecticidal soaps and removing the worms by hand will usually take care of the problems. Blight and wilt are common nightshade diseases affecting the foliage and cellular system. Good gardening practices like watering correctly, removing diseased material, and using neem oil can usually keep diseases under control.