What Flowers Help Keep Horn Worms from Tomato Plants?

Tomatoes are a staple in most vegetable gardens, but they're also a favorite of hornworms. These pests can devour entire tomato plants in a matter of days, leaving gardeners frustrated and wondering how to control them. One way to deter hornworms is by planting flowers that they don't like. Here are some flowers that can help keep hornworms from tomato plants:

Marigolds

Marigolds are a popular flower to plant in vegetable gardens because they help repel various types of pests, including hornworms. They contain a chemical compound called alpha-terthienyl, which is toxic to many insects. This compound is released into the soil around the marigold, creating a protective barrier around your tomatoes.

Petunias

Petunias are another flower that can help keep hornworms away from your tomato plants. They contain a substance called solanine, which is toxic to many pests. This compound is released into the air around the petunias, creating a barrier that can deter hornworms from approaching your tomato plants.

Nasturtiums

Nasturtiums are known for their bright orange and yellow flowers, but they can also be a useful companion plant for tomatoes. They contain a substance called linalool, which is toxic to many pests, including hornworms. In addition, nasturtiums attract beneficial insects like ladybugs and lacewings, which can help control pest populations in your garden.

Alyssum

Alyssum is a low-growing flower that can be planted as a border around your tomato plants. It contains a substance called isothiocyanate, which is toxic to many insects, including hornworms. Alyssum also attracts beneficial insects like hoverflies and braconid wasps, which can help control pest populations in your garden.

Zinnias

Zinnias are a colorful addition to any garden, but they can also help keep hornworms away from your tomato plants. They contain a substance called coumarin, which is toxic to many insects. Zinnias also attract beneficial insects like butterflies and bees, which can help pollinate your tomato plants and control pest populations in your garden.

If you're struggling with hornworms in your tomato plants, consider planting some of these flowers as a natural deterrent. Not only will they help control pest populations in your garden, but they'll also add a pop of color and beauty to your landscape.