Marigolds, radishes, and alliums like garlic and onions are effective in repelling pests and attracting beneficial insects to the cucumber garden. Learn which flowers, herbs, and veggies work best. · cucumber companion plants will ward off pests and help cucumber growth. · discover the 20 best cucumber companion plants and 6 to avoid. Companion planting with cucumbers offers numerous benefits, including improved soil health, enhanced pest control, and increased productivity. Includes herbs, vegetables, flowers, and a downloadable planting chart to plan your garden better. · the cucumber companion plants featured here promote healthier plant development and increased yields by trapping or deterring cucumber pests and attracting beneficial insects to the garden.