How to Companion Plant Tomato & Dill


It is possible to grow tomatoes alongside dill, but you should use extreme care. Tomatoes (Solanum lycopersicum) are the only plants that may benefit from dill (Anethum graveolens) if the plants are still young. When dill reaches maturity, it might have a negative impact on the development of tomatoes. You may locate better companion plants for tomatoes and dill if you have adequate room in your garden to segregate them and grow them in different areas.

Growing Tomatoes Next to Dill

The technique of cultivating two different types of plants next to each other for the benefit of either one or both of the plants is known as companion planting. For instance, tomatoes work as a windbreak for dill, and dill, in turn, helps to ward off tomato hornworms and spider mites, all while luring in helpful insects like praying mantises. According to research conducted by Cornell University, immature dill may stimulate the development of tomato plants that are located nearby. However, by the time dill has reached maturity, it is capable of causing damage to tomatoes and may actually slow down their development.

There is no universally accepted definition of what constitutes a “mature” dill plant. Even though it will be fully developed by the time it blossoms, there is a chance that dill may begin to inhibit the development of the tomato plant even before it blooms. It may come down to simple observation to determine when the dill plant you have growing in your tomato garden should be pulled out. Keep an eye on the development of the tomato, and harvest the dill when it seems to be slowing down.

The roots of dill are allelopathic, which means that they secrete chemicals that have an effect on the roots of tomatoes. If you want your dill to produce seeds, you should plant it in a location that is quite distant from where your tomatoes will grow. Plant dill at a distance of at least 4 feet away from tomatoes, even if you don’t have a large garden area to deal with. You also have the option of planting dill in a container so that its roots do not have the potential to “communicate” with the roots of your tomato plants.

Better Dill Companion Plants

Planting dill among cabbage family plants, such as broccoli (Brassica oleracea var. italica), cauliflower (Brassica oleracea var. botrytis), Brussels sprouts (Brassica oleracea var. gemmifera), kale (Brassica oleracea var. sabellica), and, of course, cabbage, is a great idea. Dill is an excellent companion plant (Brassica oleracea var. capitata). Dill has been shown to be effective in warding off pests that feed on members of the cabbage family, such as the cabbage looper and the imported cabbageworm. Growing dill in close proximity to members of this plant family may help promote the family’s overall development. It is not quite apparent if cabbage offers any benefits to dill, other than maybe acting as a windbreak.

When grown in close proximity to dill, lettuce (Lactuca sativa) and onions (Allium cepa) may also experience growth benefits. Because onions, in particular, may deter aphids from dill and because they grow well with cabbage, they are an ideal option for interspersing in the cabbage patch with dill. Aphids are little insects that feed on plant sap.

Carrots, scientifically known as Daucus carota, are likewise incompatible with dill, although not for the same reason that they stunt growth. Since dill is such a near cousin of the carrot, it is possible to cross-pollinate carrots and produce plants with strange hybrid characteristics. If you want to harvest seeds of either carrots or dill from your garden, you need keep these two things apart.

Better Tomato Companion Plants

When growing tomatoes, there are a wide variety of companion plants that may be used that do not need constant attention from the gardener. Tomatoes, like dill, grow well in close proximity to plants belonging to the onion family (Allium spp. ), which may help prevent aphid infestations. Marigolds (Tagetes spp.) and nasturtiums (Tropaeolum spp.) are tried-and-true options for keeping pests away from tomatoes. Carrots and parsley (Petroselinum crispum) do well when planted next to tomatoes. Carrots and parsley (Petroselinum crispum) perform well when planted next to tomatoes.

The capacity of young dill to ward off the tomato hornworm is one of the many advantages of putting it in close proximity to tomato seeds. However, many other plants, such as borage (Borago officinalis), calendula (Calendula officinalis), and herbs that like shade, such as thyme, give the similar benefit to tomatoes (Thymus vulgaris). Try growing cilantro (Coriandrum sativum), basil (Ocimum basilicum), bee balm (Monarda spp.), or sage beside your tomato plants to encourage faster and more abundant development (Salvia officinalis).

Tomatoes should be maintained apart from all members of the cabbage family, as well as potatoes (Solanum tuberosum), fennel, and any other plant that belongs to the genus Solanum (Foeniculum vulgare). According to Tomato Dirt, another mistake that may lead to tragedy is planting maize (Zea mays) near to tomatoes. This is because both the tomato fruitworm and the corn earworm are attracted to these plants.