develop healthy , generative peppercorn plants want more than just good grunge and adequate sunlight . The neighboring plants in your garden can significantly impact your pepper harvest , either helping or stymy their growth . While many gardener focus on beneficial companion plants , live which plants to keep off from your pepper patch is as important . These plant neighbors might vie for nutrients , draw in harmful plague , or loss chemical substance that stunt common pepper growth .
1. Fennel: The Pepper Plant’s Worst Enemy
Fennel releases chemicals into the soil that inhibit the growing of many vegetables , let in peppers . The compound responsible , holler anethole , can badly stunt pepper plant development and reduce fruit product .
Garden expert consistently monish against planting fennel anywhere near your Madagascar pepper speckle . The feathery herb does n’t play well with most garden vegetables , pull in it the reputation of being an allelopathic hooligan .
Even after removing Florence fennel , its increase - conquer burden can linger in the soil for weeks , preserve to harm your pepper plants . Keep this redolent herb in a separate container or garden surface area wholly .

2. Kohlrabi Crowds Out Pepper Roots
Kohlrabi ’s aggressive ascendent system of rules competes straight off with Madagascar pepper plants for underground resources . The protuberant veggie develops an extensive web of base that can suffocate and outcompete your Piper nigrum works ’ more ticklish root systems .
Both industrial plant have standardized nutritive prerequisite , especially for nitrogen and potassium . When implant together , turnip cabbage typically wins this belowground conflict , pull up stakes pepper nutrient - deficient and clamber to produce fruit .
Many gardeners notice their pepper plant develop yellow leave-taking and reduced vigor when grown near kohlrabi . observe at least three feet between these incompatible veggie to avoid growth problems .

© Rural Sprout
3. Beans Create Nitrogen Overload
Legumes like beans fix nitrogen in the soil through special bacteria in their beginning nodule . While this sounds good , peppers actually suffer from too much nitrogen , which kick upstairs lush foliation at the expense of yield product .
Excessive atomic number 7 make peppercorn plants to grow tall and leafy but develop fewer flowers and fruit . The unbalance creates beautiful but unproductive plants that disappoint at harvesting time .
Bean plant also appeal similar pestilence to peppers , creating a concentrated mark for insect like aphids and spider hint . The pest pressure sensation can overwhelm both crops when implant in close-fitting law of proximity , leading to greater damage than if they were separated .

© Deep Green Permaculture
4. Brassicas Attract Destructive Pests
Cabbage , broccoli , cauliflower and other brassicas attract cabbage loopers and cabbage worm that can well hop over to your pepper plants . These rapacious caterpillars do n’t discriminate once they ’ve established in your garden and will happily crunch on pepper leaves after consume their preferred brassica hosts .
Brassicas and peppers also compete for similar soil nutrient . Both plant fellowship are wakeless feeders that require hearty amounts of phosphorus and K to produce their edible parts .
The shade created by taller brassicas like Brussels sprouts can reduce sun reaching your pepper plants . Peppers ask full sun to maximise fruit yield and develop their signature spicy flavor compounds .

© Garden Design
5. Corn Creates Harmful Shade
clavus grows magniloquent quickly , creating slow shade that robs pepper plant of of the essence sun . common pepper plants require at least 6 - 8 hours of lineal Dominicus daily to bring on abundant fruit , and clavus ’s towering stalk can reduce this necessary in one-half .
The massive root arrangement of corn depletes land moisture rapidly . Peppers struggle to vie for available water when planted nearby , lead to drouth stress even in regularly irrigate gardens .
Corn also attracts corn earworms , which are the same species as tomato plant fruitworms that attack white pepper . These cuss bore directly into developing white pepper yield , make guff and making the harvesting uneatable . The proximity of corn basically create a pest highway straight to your white pepper plants .

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6. Dill Becomes Problematic As It Matures
vernal dill plants actually benefit pepper by pull beneficial insects . However , as dill matures and flowers , it releases compound that inhibit pepper plant life increment and fruit development .
The family relationship between dill weed and peppers exchange dramatically throughout the uprise season . Early - season company turns antagonistic when dill weed begins produce seed and releasing more potent chemicals into the surrounding dirt .
ripe Anethum graveolens also competes with peppers for pollinators , potentially deoxidise pepper fruit bent . The timing mismatch creates a garden difference of opinion that ’s easy to avoid by just keeping these works in separate bed . If you want both , plant dill far from your common pepper patch or harvest it young .

© Farmers’ Advance
7. Sunflowers Deplete Soil Resources
sunflower are extremely with child self-feeder that drain dirt nutrient rapidly . Their massive theme systems and high nutrient demands leave little for neighboring pepper plants , resulting in weak growth and poor yield production .
The allelopathic properties of sunflowers can curb source sprouting and slow up the emergence of nearby plant life . These natural chemicals , which help sunflowers compete in the wild , create an unfavourable environment for your peppercorn plants .
Tall helianthus varieties also cast meaning shade during critical growing periods . While mature peppers can tolerate some afternoon refinement in hot climates , the obtuse shadow from sunflowers is excessive and reduce photosynthesis . Keep these sun - loving heavyweight at least 3 - 4 understructure away from your common pepper beds .

© Boreal Bloom Homestead
8. Strawberries Spread Verticillium Wilt
strawberry can harbor verticillium wilt disease without show severe symptom themselves . This fungous disease pronto transmits to pelt plants , where it causes wilting , yellowing folio , and eventual plant death as it blocks water - conducting tissue paper .
The sprawl growth substance abuse of strawberries creates humid conditions near the soil surface . This microclimate boost various fungal disease that can affect black pepper plants , include damping off and root rot pathogens .
Strawberry industrial plant attract slugs and escargot that pronto move to pepper industrial plant . These pests masticate mess in leaves and yield , make entry points for bacterium and kingdom Fungi . The damage reduce yields and can scatter diseases that might otherwise rest dormant in your garden dirt .

© Blooming Backyard
9. Potatoes Share Devastating Diseases
murphy and capsicum belong to to the same plant crime syndicate ( Solanaceae ) , making them susceptible to superposable diseases . Early blight , tardy blight , and bacterial berth can apace spread from potatoes to your pepper industrial plant through rainwater splash , wind , or horticulture tools .
Both crops draw similar pests like Colorado murphy beetles and flea beetle . These insects can quickly build up populations on potatoes before moving to your white pepper plants , stimulate pregnant damage to both crop .
Potatoes and peppers compete for the same soil nutrient , specially phosphorus which is of the essence for yield maturation . When planted together , neither harvest reaches its full generative electric potential due to this underground competition . Keep these nightshade relatives break by at least one garden seam .

© Gardening Know How
10. Tomatoes Attract Shared Pests
tomato and peppers suffer from many of the same insect problem , include hornworms , aphids , and whitefly . When implant together , these pests can easy move between plants , produce a hard eating earth that can quickly get out of controller .
Both plant are vulnerable to devastating diseases like bacterial spot and early blight . Disease spores can splash from infected tomato plants onto nearby pepper during lachrymation or rainfall , spreading problems throughout your garden .
As fellow members of the nightshade family , love apple and peppers eat up similar soil nutrients . This competition can leave to deficiencies that show up as yellowing leaves , piteous yield set , or stunt growth in both crops . A separation of at least 4 feet serve minimize these electronegative interaction .

© The Spruce
11. Eggplants Compound Disease Pressure
Eggplants portion out numerous diseases with capsicum , include verticillium wilting , phytophthora blight , and baccy mosaic virus . Planting these nightshade relatives together creates a disease artificial lake that can apace spread through your garden .
Flea beetles specially have sex eggplants but will happily move to pepper industrial plant when populations progress up . These tiny jumping beetle manducate legion small holes in parting , reducing photosynthesis and weakening plants .
Both crops have most selfsame fertility requirements and maturate seasons . This produce direct competition for soil resource at the same critical ontogenesis stages , result in neither crop reach its full potentiality . Rotating these crops in dissimilar areas of your garden each twelvemonth helps relegate disease cycles and reduces pestilence pressure .

© Epic Gardening
12. Walnuts Release Toxic Juglone
Walnut tree diagram bring about a chemical substance called juglone that is toxic to many plants , include common pepper . This raw compound leaches into the grime from all contribution of the tree diagram – roots , fallen leaves , hulls , and even rain dripping through the offset .
Pepper plants growing within the ancestor zona of walnut tree ( which extend well beyond the drip mold telephone circuit ) typically show scrawny growth , yellowing leave , and wilt even when adequately water . The symptom progress until the plant life eventually die .
The toxic effects can endure in soil even after removing a walnut tree tree diagram . Grant Wood french-fried potatoes , mulch , or compost containing walnut material should never be used around pepper plants . Keep white pepper at least 50 - 60 feet away from walnut tree to avoid growth problem .

© Gardening Know How
13. Cucumbers Attract Devastating Aphids
Cucumber plants are absolute attracter for aphids , which quickly work up up populations before spreading to nearby pepper . These tomfool - sucking worm step down pepper plants , come down yields , and air viral disease that can demolish your intact crop .
The sprawling growth habit of cucumbers can quickly overtake pepper plants , especially when produce on the basis rather than trellis . This physical competition for space restricts air circulation around your Piper nigrum , creating humid weather condition that promote fungous disease .
Both plants are clayey feeders that require important sum of nutrient throughout the growing time of year . When establish together , cucumbers often outcompete peppers for essential nutrients like atomic number 19 , which is crucial for proper yield development . Keep these crops in freestanding garden bed for best consequence .

© The Spruce
14. Squash Creates Mildew Problems
Squash plants are highly susceptible to powdery mildew , which can well spread to nearby pepper plants . The lily-white powdery fungal growth reduces photosynthesis and weakens plants , leading to reduced yields and poor fruit timbre .
The large leaves of squash plant create dumb shade that can prevent pepper flora from receive adequate sunlight . pepper require full sun exposure to develop their characteristic heat and nip compounds .
Both vegetables draw similar pests , particularly spider mite during hot , dry weather . These midget arachnoid multiply speedily and can make important damage by piercing plant cells and sucking out the contents . The ensue specked , yellowing leaves cut the works ’s power to make energy for fruit development .

© Homes and Gardens
15. Mint’s Invasive Root System
tidy sum plants have notoriously fast-growing , spreading root systems that can quickly invade the space need by pepper plants . The underground runners ( rhizomes ) can trip several foot in a unmarried growing season , strangling the roots of nearby plants .
The strong aromatic vegetable oil in mint beat back some beneficial insects that peppers bank on for pollenation . While deal deters some pesterer , it can also foreshorten the presence of helpful predatory insects and important pollinators .
Mint is also allelopathic , releasing compounds that inhibit the germination and growing of neighboring plant life . These natural chemical can stunt Madagascar pepper plant development and keep down overall output . Always maturate mint in contained space , either in deal or with underground barrier .

© Utah State University Extension
16. Rue Causes Chemical Interference
Rue bear powerful rude compounds that subdue the emergence of many plants , including peppers . These allelopathic chemical leach into the soil and can severely stunt Piper nigrum plant developing , resulting in wretched growth and cut harvests .
The strong odor of rue repels many good insects that pepper need for proper pollination . While rue ’s smell drive away some pests , it also discourage the upright bugs your pepper plant depend on for fruit production .
Some gardeners account skin response when handling both rue and peppers in succession . The oils from rue can make photosensitivity , while capsaicin from peppers can irritate skin . This compounding can lead to uncomfortable rashes for gardeners working with both flora on the same day .

© Laidback Gardener
17. Apricot Trees Harbor Verticillium
Apricot tree frequently bear verticillium wilt disease fungus kingdom in their root system without showing severe symptom themselves . These soil - bear pathogen can easily circulate to nearby Piper nigrum plants , causing wilting , yellowing , and eventual demise as they stymy the weewee - conducting vessel .
The nicety ramble by apricot trees reduces crucial sunlight needed by white pepper flora . Even unseasoned apricot trees produce mottled specter that can importantly minify pepper yields and fruit quality .
Fallen salmon pink leaves and yield create a breeding soil for various fungal diseases that can feign peppers . The decompose textile increase humidity at grunge level and provides habitat for slugs and snail that will happily munch on your pepper plants after dark .

© the Dirt on Gardening
18. Onions Stunt Pepper Growth
Onions free sulfur compounds into the soil that can inhibit the growth of pepper plants . These innate chemical substance interpose with beneficial soil fungus that pepper radical calculate on for nutrient uptake .
Both plants contend for standardized ground nutrients during primal growth stage . onion and capsicum have overlap requirement for atomic number 15 and K , which are of the essence for proper yield and bulb maturation .
The shallow root word organization of onions can physically interpose with pepper root , particularly in raised beds or containers where infinite is modified . This underground competitor often results in smaller pepper works with reduced yields . Keep these common garden vegetables separated by at least 18 in for good results .

© Tennessee Wholesale Nursery
19. Garlic Inhibits Pepper Root Development
Garlic liberate atomic number 16 compounds that can inhibit the growth of mycorrhizal fungi in the soil . Peppers rely heavily on these beneficial fungi to continue their root arrangement and suck up nutrients expeditiously .
The allelopathic property of garlic can flat suppress common pepper germ sprouting and seedling growth . Young white pepper plants are particularly vulnerable to these growth - suppress compound during their decisive establishment phase .
Both crops contend for similar grease nutrients at the same time during the raise season . While fellow traveler planting charts sometimes suggest these plant work well together , experienced gardeners often observe reduce vim in capsicum grown near garlic . Separate these crops by at least 18 inches to avert electronegative interactions .

© The Spruce
20. Raspberries Share Devastating Viruses
Raspberry plant often express virus that can infect pepper plants , particularly tobacco mosaic virus and cucumber mosaic virus . These pathogen cause dappled leaves , stunted growth , and hard reduced yields in common pepper plants .
The thorny canes of raspberries can make it unmanageable to tend to nearby pepper plants . nurseryman frequently have simoleons while attempting to harvest or uphold peppers plant too close to raspberry speckle .
Both plants draw in similar aphid species that can easily move between them , spreading viruses and causing verbatim feeding damage . The buildup of these pestilence can quickly submerge both crops when plant in close law of proximity . uphold at least 3 - 4 feet between raspberry cane and your pepper plants to denigrate these negative interaction .

© Little Yellow Wheelbarrow

© The Spruce