GarlicAllium sativumrepels pests
Garlic deters pests like aphids and nematodes, protecting radishes.
What to plant with Radish
Raphanus sativus
Radish grows best when paired with plants that repels pests, attracts pollinators, lives as mulch. We've catalogued 30 beneficial companions and 4 antagonists to avoid. Every pairing below cites its mechanism — pest deterrence, nitrogen fixing, allelopathy, or shared disease.
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Plant near these for better growth
30 plantsAnise HyssopAgastache foeniculumattracts pollinators
Lower-confidence guild pairing: insectary flowers support pollinators, hoverflies, and parasitic wasps around mixed vegetable beds.
BorageBorago officinalisattracts pollinators
Lower-confidence guild pairing: insectary flowers support pollinators, hoverflies, and parasitic wasps around mixed vegetable beds.
Pot marigoldCalendula officinalisattracts pollinators
Lower-confidence guild pairing: insectary flowers support pollinators, hoverflies, and parasitic wasps around mixed vegetable beds.
Fagopyrum esculentumFagopyrum esculentumattracts pollinators
Lower-confidence guild pairing: insectary flowers support pollinators, hoverflies, and parasitic wasps around mixed vegetable beds.
YarrowAchillea millefoliumattracts pollinators
Lower-confidence guild pairing: insectary flowers support pollinators, hoverflies, and parasitic wasps around mixed vegetable beds.
ChivesAllium schoenoprasumrepels pests
Lower-confidence guild pairing: aromatic foliage can confuse pests in dense polyculture beds when spacing and airflow are maintained.
Artemisia dracunculusArtemisia dracunculusrepels pests
Lower-confidence guild pairing: aromatic foliage can confuse pests in dense polyculture beds when spacing and airflow are maintained.
HyssopHyssopus officinalisrepels pests
Lower-confidence guild pairing: aromatic foliage can confuse pests in dense polyculture beds when spacing and airflow are maintained.
GarlicAllium sativumrepels pests
Lower-confidence guild pairing: aromatic foliage can confuse pests in dense polyculture beds when spacing and airflow are maintained.
White CloverTrifolium repenslives as mulch
Lower-confidence guild pairing: low ground covers protect soil, reduce bare patches, and can be cut back if they compete.
Amaranthus cruentusAmaranthus cruentusacts as a trap crop
Lower-confidence guild pairing: trap crops can draw aphids or flea beetles away from the main crop when monitored and removed if overloaded.
Amaranthus hypochondriacusAmaranthus hypochondriacusacts as a trap crop
Lower-confidence guild pairing: trap crops can draw aphids or flea beetles away from the main crop when monitored and removed if overloaded.
PigweedAmaranthus retroflexusacts as a trap crop
Lower-confidence guild pairing: trap crops can draw aphids or flea beetles away from the main crop when monitored and removed if overloaded.
CeleryApium graveolensacts as a trap crop
Lower-confidence guild pairing: trap crops can draw aphids or flea beetles away from the main crop when monitored and removed if overloaded.
AsparagusAsparagus officinalisacts as a trap crop
Lower-confidence guild pairing: trap crops can draw aphids or flea beetles away from the main crop when monitored and removed if overloaded.
Wild CabbageBrassica oleraceaacts as a trap crop
Lower-confidence guild pairing: trap crops can draw aphids or flea beetles away from the main crop when monitored and removed if overloaded.
TurnipBrassica rapaacts as a trap crop
Lower-confidence guild pairing: trap crops can draw aphids or flea beetles away from the main crop when monitored and removed if overloaded.
Cucumis meloCucumis meloacts as a trap crop
Lower-confidence guild pairing: trap crops can draw aphids or flea beetles away from the main crop when monitored and removed if overloaded.
Cucumis sativusCucumis sativusacts as a trap crop
Lower-confidence guild pairing: trap crops can draw aphids or flea beetles away from the main crop when monitored and removed if overloaded.
Pumpkin / ZucchiniCucurbita pepoacts as a trap crop
Lower-confidence guild pairing: trap crops can draw aphids or flea beetles away from the main crop when monitored and removed if overloaded.
Daucus carotaDaucus carotaacts as a trap crop
Lower-confidence guild pairing: trap crops can draw aphids or flea beetles away from the main crop when monitored and removed if overloaded.
Abelmoschus esculentusAbelmoschus esculentusacts as a trap crop
Lower-confidence guild pairing: trap crops can draw aphids or flea beetles away from the main crop when monitored and removed if overloaded.
CressLepidium sativumacts as a trap crop
Lower-confidence guild pairing: trap crops can draw aphids or flea beetles away from the main crop when monitored and removed if overloaded.
Pastinaca sativaPastinaca sativaacts as a trap crop
Lower-confidence guild pairing: trap crops can draw aphids or flea beetles away from the main crop when monitored and removed if overloaded.
NasturtiumTropaeolum majusacts as a trap crop
Lower-confidence guild pairing: trap crops can draw aphids or flea beetles away from the main crop when monitored and removed if overloaded.
TomatoSolanum lycopersicumacts as a trap crop
Lower-confidence guild pairing: trap crops can draw aphids or flea beetles away from the main crop when monitored and removed if overloaded.
PotatoSolanum tuberosumacts as a trap crop
Lower-confidence guild pairing: trap crops can draw aphids or flea beetles away from the main crop when monitored and removed if overloaded.
SpinachSpinacia oleraceaacts as a trap crop
Lower-confidence guild pairing: trap crops can draw aphids or flea beetles away from the main crop when monitored and removed if overloaded.
Lactuca sativaLactuca sativaacts as a trap crop
Lower-confidence guild pairing: trap crops can draw aphids or flea beetles away from the main crop when monitored and removed if overloaded.
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Keep away from these they fight
4 plantsFennelFoeniculum vulgareinhibits growth
Management warning: fennel is traditionally grown apart because it can inhibit neighbouring crops and disrupt guild balance.
Jerusalem artichokeHelianthus tuberosuscompetes for resources
Management warning: vigorous spreaders or allelopathic plants are best isolated from productive beds unless contained.
SpearmintMentha spicatacompetes for resources
Management warning: vigorous spreaders or allelopathic plants are best isolated from productive beds unless contained.
FennelFoeniculum vulgarecompetes for resources
Management warning: vigorous spreaders or allelopathic plants are best isolated from productive beds unless contained.
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How these mechanisms work
pest repellent
Strong aromatics like basil, garlic, and marigold mask the olfactory cues that pests use to find their target crop.
pollinator attractor
Flowering herbs draw bees, hoverflies, and parasitic wasps — improving fruit set and biological pest control.
living mulch
A low-growing perennial covers bare soil under taller crops, reducing evaporation and weed pressure.
trap crop
A sacrificial crop draws pests away from the main harvest.
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Frequently asked
What are the best companion plants for Radish?
The top companions are Garlic, Anise Hyssop, Borage. 27 more pairings are catalogued above with their mechanisms.
What should I NOT plant near Radish?
Avoid Fennel, Jerusalem artichoke, Spearmint, and 1 other antagonists. Reasons vary — allelopathy, shared pests, or resource competition. See the section above for each plant's specific issue.
Can companion planting reduce pest damage on Radish?
Aromatic companions deter many pests through scent masking and alarm pheromones. Effect varies by pest species and density — most effective as part of a polyculture, not a one-plant solution.
Is companion planting scientifically proven?
Some mechanisms are well-documented (legume nitrogen fixation, allelopathy in walnut and fennel, nematode suppression by marigolds). Others are traditional pairings with anecdotal support. We cite both, but mark mechanism strength where available.
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