10 Best Rosemary Companion Plants to Help Repel Pests

Grow these rosemary companion plant together in your garden to control pests like cultivated carrot tent-fly and bean beetle .

Edward Gohlich

Rosemary associate plants can aid deter pests and keep your garden healthy . It ’s well-heeled to find plants that geminate well with rosemary , which has a strong aroma that can keep garden pests away , such as slugs , snails , and Japanese beetle .

rosemary plant

Credit:Edward Gohlich

Rosemary ( Salvia genus Rosmarinus ) is an evergreen plant shrub , popular as a culinary herbaceous plant in cup of tea such asroasted vegetablesorroast gripe . The industrial plant , native to the Mediterranean expanse , has a strong fragrance , thanks to its in high spirits concentration of volatile compounds . Researchers have find that rosemary ’s of the essence vegetable oil is good in repelling some pests and shows hope as a bioinsecticide .

Here ’s our guide on plants that spring up well withrosemary , which likes comparatively dry , sandlike filth and bright Dominicus .

Lavender

Growinglavenderand Rosmarinus officinalis together throw sense . These plants both come from the Mediterranean region , have similar charge requirements , and do n’t necessitate much water . Plus , if youplant these two herbs together , they ’ll perfume your garden beds with a adorable fragrance . Pollinators and other beneficial louse are sure to visit , too .

Brassicas

Kindra Clineff

Brassicas , such ascauliflower , Brussels germinate , andcabbage , are often beset by pests that bore holes in leaf and leave harvest home looking shabby . However , growingstrongly sweet-smelling rosemaryplants near brassicas naturally repels manycommon garden pests , include cabbage moths . Rosemary does n’t want as much water as brassica plants , so you may want to grow the herbaceous plant in a pot near your vegetable garden .

Sage

Sageis a woody - stem herb that loves sun andwell - drain soils , so it get along nicely with rosemary in the garden . If you garden in a small infinite , salvia and rosemary plants can rise together in a spacious planter , as long as they have infinite to spread out . salvia ’s silver - unripened leaves and purple flowers also provide an attractive backdrop for rosemary ’s spiky foliation .

Carrots

Carrot fly front are majorcarrotpests , and they ’re particularly attract to the aroma of carrot leaves . Adult cultivated carrot fly lay their eggs near carrot , and when those testis dream up , the larvae tunnel into the soil and masticate holes and tunnels in the carrot root . However , if yougrow rosemary near carrots , the herbaceous plant ’s strong aroma helps conceal the fragrance of carrot and makes it much harder for carrot flies to observe their quarry .

Oregano

Like rosemary , oregano is an easygoing herbthat grows well in brilliant Dominicus and relatively dry soil . keep these two herb together reduce your gardening tasks because you may irrigate them at the same time and do n’t require to occupy about adding much fertilizer . Keep in mind that oregano is more stale - hardy than rosemary , which is often grown as an annual inUSDA Zones7 and cold .

Beans

Dana Gallagher

bonce beetles have a predilection for nibble onbean plantsand leave unsightly hole and skeletonized dome forget in their wake . Extensive damage weakens beans and makes them importantly less productive . Bean beetle can also transmit plant viruses that cause problems . The full tidings is that rosemary ’s strong scent hide nearby bean plant , making them much harder for noodle beetle to find .

Thyme

With its gloomy lachrymation needs and Dominicus - have intercourse nature , thymeis another obvious choice for growing near rosemary . It grows well in pots or herbaceous plant bed , and somelow - growing thymevarieties can be used as ground cover for subdue skunk beneath rosemary plants . Thyme is more cold - stout than rosemary , so you may need to replace the rosemary every year if you do n’t winter it indoors .

Sweet Alyssum

Sweet alyssumplants boast fragile purple - and - snowy flower that are often used to smarten up up container garden and the front of flowerbed . Alyssum also flourishes beside rosemary in an herbaceous plant garden . Pairing these powerhouse plants makes gardens even more pest - resistive . While rosemary ’s fragrance deters many pest insect , alyssum ’s flowersattract good bugsthat provender on nuisance pests .

Parsnips

Marty Baldwin

Parsnips are vulnerable to carrot flies , but growing rosemary near your patch of parsnips can keep yourroot veggiessafe . What ’s more , because parsnips do most of their grow underground , you wo n’t need to worry about them competing with rosemary for sunlight . Parsnips need more water than rosemary , so you may desire to grow rosemary in a pot near the Pastinaca sativa layer , or be careful where you direct your hose when watering .

Strawberries

Denny Schrock

When it come up to rosemarycompanion plants , strawberries may not be an obvious selection , but this plant partnership has its fringe benefit . Strawberriesand rosemary have different root structure , and they do n’t contend for stain outer space . Plus , both of these plants grow well in potful . Rosemary ’s fragrance can deter many strawberry mark cuss , and strawberries ' spreading growth habit keeps weeds from cropping up beneath rosemary flora .

Frequently Asked Questions

Pests are n’t generally a problem for rosemary , though you still have to keep an eye out for aphids , spider tinge , and thrips . It ’s also a host plant for southerly purple mint moth , which lays its nut on the works ; caterpillars feed in near the plant ’s stems . you could pluck off the caterpillar , prune off damaged stems , or useBacillus thuringiensis , a instinctive pesticide that ’s nontoxic to humans .

Rosemary is well-fixed to acquire . To avoid root hogwash , be heedful not to overwater the works . The plant is susceptible to botrytis , which is a fungus , and to powdery mildew , so ensure it gets in force aura circulation . It ’s not democratic with deer .

“ Insect - Repelling Plants for Your Garden . ” University of Georgia Cooperative Extension .

‘Betty’s Blue’ English Lavender

Credit: Laurie Black

Krzyżowski , Michal et al . “The Effect of Rosmarinus officinalis Essential Oil Fumigation on Biochemical , Behavioral , and Physiological Parameters of Callosobruchus maculatus . ”Insects , loudness 11 , no . 6 , 2020 . doi : https://www.mdpi.com/2075 - 2025-03-26/344

“ Rosemary — Salvia genus Rosmarinus . ” University of California Agriculture and Natural Resources .

“ insect on comestible Rosemary . ”University of Florida Institute of Food and Agricultural Sciences .

purple cabbage plant