Tomatoes are a beloved staple in many gardens , but not all plants are good neighbors for them . While tomato plant mature well in sure environments , pairing them with the ill-timed fellow traveller can result in poor increment , pest problem , or disease irruption . Knowing which plants to avoid can help you protect your tomato plants and ensure they thrive .

Certain plants can compete with tomato for nutrients , water , and sunlight , while others appeal harmful pests or increase the risk of diseases like blight . For model , plants in the brassica family , like moolah or broccoli , can stunt tomato growth by sharing similar alimentary requirement . to boot , flora that harbor plague like aphids or attract disease can create unnecessary challenges .

In this article , we ’ll uncover 17 plants that you should never grow alongside tomatoes , concord to experient gardeners . realize these relationships will help you produce a healthier , more productive garden while ensuring your tomato get the best charge potential .

17 Plants You Should Never Grow With Tomatoes, According to a Gardener

Potatoes

Potatoes and tomatoes may seem like natural collaborator in a garden due to their similar growing conditions , but this pairing can take to disaster . Both being members of the nightshade kinsfolk , they deal vulnerabilities to certain diseases , specially blight . implant them together can aggravate these offspring , leading to a paste that ’s hard to contain . Additionally , they compete fiercely for stain nutrients , which can stunt growth . Keep them separate to defend a healthy garden . By distancing them , you ’ll reduce the risk of disease and ensure both crops have admittance to the nutrients they need to thrive .

Fennel

Fennel is infamous for inhibit the maturation of many plant life , including love apple . It free chemicals into the filth that can stunt the development of tomato plants , make it a inadequate comrade choice . This allelopathic effect is in particular strong , leading to reduce life force and yield production . For those attend to maximize their tomato yield , keep Florence fennel far by is all-important . Consider planting common fennel in a separate area of the garden where it ca n’t interfere with others . This separation ensures that your tomatoes can grow strong without any undesirable chemical interference .

Cabbage

Cabbage and tomatoes might seem like they would get along well , but they in reality compete for like nutrient in the soil . This competition can top to stunted increment for both plants , as they vie for essential resources . Moreover , cabbage can attract pestilence that are harmful to tomato , increasing the risk of infestation . For a more symmetrical garden , plant kale away from tomato beds . This legal separation help see that both plants have access to the nutrient they require , and reduces the chance of pestilence - related matter , leading to a more fertile grow time of year .

Dill

While dill is often used in culinary dishes , it does n’t make a good garden companion for tomatoes . Young Anethum graveolens can actually indorse love apple emergence , but once matured , it can inhibit their development . Mature dill tend to attract pests such as tomato hornworms , which can devastate your crop . Moreover , Anethum graveolens ’s vigorous growth can shadow young tomato plant plants , stunt their advancement . To benefit both herb and Lycopersicon esculentum , conceive institute dill weed in a freestanding area . This ensures your tomato reach their full potential drop , loose from pest interference and competition . It ’s dependable to keep them apart for a flourishing garden .

Corn

Corn and tomatoes together might sound like a garden dream , but they can really create a nightmare . Both plant pull in exchangeable pests , admit the dreaded corn whisky earworm and tomato fruitworm . When plant together , they create a counter for these pests , lead to increase infestation . Indian corn also contend for sunlight and quad , which can overshadow and stunt your tomatoes . For a healthier garden , give these works plenty of distance . By doing so , you reduce the peril of pest infestations and see each plant has the outer space it needs to arise robustly and make plentifully .

Walnuts

Walnut trees produce a chemical call off juglone , which is toxic to many plants , including tomatoes . This substance can strip into the soil and inhibit the ontogeny of your tomato works , causing wilting and yellowing of leave . The shade from walnut trees can also deprive tomatoes of the sunlight they need to brandish . To protect your garden , avoid planting tomatoes near walnut trees or any area where the ancestor might scatter . By proceed these plants apart , you see to it that your tomatoes obtain ample sun and remain gratis from the harmful essence of juglone .

Pepper Plants

Peppers and tomatoes belong to the same flora kinfolk , Solanaceae , and divvy up standardized susceptibilities to pests and diseases . When grown together , they can easily spread issues such as blight and aphid . This penny-pinching law of proximity can conduct to a rapid outbreak , affecting your entire garden . what is more , both plant require similar nutrient , leading to competition that can stunt growth . For optimum resultant role , consider planting peppers in a separate area of the garden . This legal separation help in managing disease and ensures that both crops have access to the nutrient they involve to fly high without intervention .

Eggplant

Eggplant , like tomato , go to the nightshade kinsfolk and shares common pest and diseases . When set together , the danger of spreading these subject increases importantly . The competition for nutrients can also be savage , lead to stunted growth and concentrate yields for both plant . To prevent this , it ’s heady to plant eggplants in a unlike surgical incision of the garden . By doing so , you reduce the peril of pest and disease spread and provide each industrial plant with the chance to get at the nutrients they need . Keep them apart to ensure a healthier , more fat garden .

Brussels Sprouts

Brussels sprouts and tomatoes do n’t make the honest neighbour in a garden . Both plants are fleshy feeders , contend for critical nutrients in the soil . This competition can lead to undernourished plant with slim down growth and yields . Brussels bourgeon can also pull in pests that are damaging to tomato plants , increase the risk of plague . For a more successful garden , it ’s advisable to plant these crops at a length from each other . This detachment ensure that both plants have sufficient admittance to nutrients and reduce the likelihood of pest - related issues , allow them to flourish independently .

Kale

Despite its popularity as a superfood , simoleons is n’t a super fellow traveler for tomatoes . Both plants ask similar food , leading to competition that can hinder growth . to boot , kale can draw in pests such as aphids , which can well spread to nearby tomato plants . To ensure a healthy garden , it ’s best to institute lolly in a disjoined area . This legal separation not only cut nutrient competitor but also assist manage gadfly populations . By giving these plants their own space , you promote goodly growth and a more big harvest for both kale and tomatoes .

Cauliflower

Cauliflower and tomatoes are not the respectable companions in a garden setting . Both require ample nutrients , which can lead to rival in crowded garden bed . This nutrient battle can result in stunted growth and lower yield . Cauliflower can also attract sure plague that are harmful to Lycopersicon esculentum , further elaborate their coexistence . For a booming garden , take planting these crops apart . This scheme ensures that each plant has access to the resources it call for and minimise the risk of pest infestations , head to more rich and healthy garden growth overall .

Broccoli

Broccoli , when grown near tomatoes , can lead to bowelless rival for territory nutrients . Both plants are overweight feeders , and their close law of proximity can ensue in stunted development and reduced yields . Additionally , broccoli can hold pest that are harmful to tomato plants , increasing the endangerment of infestations . To optimise garden winner , it ’s best to set Brassica oleracea italica at a distance from tomato . By doing so , you ensure that both plants have ample access to nutrients and reduce the likelihood of pest - related job , fostering a more balanced and productive gardening environs .

Kohlrabi

Brassica oleracea gongylodes , though a unique gain to any garden , does n’t match well with love apple . The two compete for all important food , which can stunt growing for both . Additionally , kohlrabi can pull in pests that are prejudicious to tomato plants , create extra challenge . Planting them individually can palliate these issue . By kick in each plant its own space , you quash competitor and give them a better chance to thrive . This breakup helps ensure that your Lycopersicon esculentum produce substantial and levelheaded , free from the pressures that kohlrabi might otherwise introduce .

Bok Choy

Bok Choy and tomato may not seem like competitors at first coup d’oeil , but they both demand similar nutrients , leading to potential resource battles . Bok Choy can also attract pests that easily spread to tomato plant , complicating your gardening exploit . To hold a harmonious garden environment , it ’s advisable to implant these two at a distance from each other . This spatial detachment helps reduce the risk of nutrient challenger and pest infestation , ensuring that both industrial plant can produce robustly and produce abundantly , free from the other ’s hinderance .

Apricot Trees

Apricot Sir Herbert Beerbohm Tree , while delightful for their fruit , can be troublesome neighbors for tomato plant . The trees ’ roots can compete for dirt nutrients , and their canopy can mold unwanted shade , depriving tomato plant of much - needed sunlight . Furthermore , apricot trees can appeal certain pests that may also target tomato plants . For a successful garden , it ’s idealistic to institute tomatoes well off from apricot tree . This aloofness ensures that your tomatoes receive ample light and bring down the competition for nutrients . By celebrate them aside , you could delight healthy , thriving tomato plants alongside your apricot crop .

Sunflower

helianthus , with their loom heights , can dwarf tomato plants , deprive them of necessary sunshine . This want of light can lead to weaker growth and reduced yields . sunflower also compete for dirt nutrients , which can further obstruct tomato development . For a more in force garden scheme , ensure that sunflowers and tomatoes are planted far apart . This breakup allow tomatoes to bask in the sunlight they take and reach the nutrients required for robust growth . By managing their placement carefully , you could enjoy both sunflowers ’ ravisher and a openhanded Lycopersicon esculentum harvest .

Black Walnut Trees

bleak walnut tree diagram are notorious for producing juglone , a chemical substance toxic to many plants , include tomato . This nitty-gritty can strip into the soil , stimulate wilting , yellowing , and even dying in love apple flora . Additionally , the tint cast by walnut trees can limit the sunshine usable to tomatoes , further bear upon their growth . To safeguard your garden , plant tomatoes well out from bootleg walnut trees . This distance ensures that they are free from juglone ’s harmful effects and can invite the sunshine they call for . With careful provision , your tomato can thrive without the shadow of walnut tree trees .

Potatoes

© Treehugger

Potatoes

Fennel

© UT Gardens

Fennel

Cabbage

© Koppert

Cabbage

Dill

© Growfully

Dill

Corn

© Britannica

Corn

Walnuts

© Handy Farms

Pepper Plants

© Martha Stewart

Pepper Plants

Eggplant

© Wikipedia

Eggplant

Brussels Sprouts

© Territorial Seed

Brussels Sprouts

Kale

© Kekoa Foods

Kale

Cauliflower

© Koppert

Cauliflower

Broccoli

© Health

Broccoli

Kohlrabi

© Wikipedia

Kohlrabi

Bok Choy

© Sow Right Seeds

Bok Choy

Apricot Trees

© Better Homes & Gardens

Apricot Trees

Sunflower

© Gardeners’ World

Sunflower

Black Walnut Trees

© National Park Service

Black Walnut Trees