Bay leaves: Repel flies. When you grow this plant, you won’t have to rely on the dried leaves from stores to add flavor to roasts and soups. Just pick the leaves as you need them.
Chives: Repel carrot flies, Japanese beetle and aphids.
Dill: Repels aphids, squash bugs, spider mites, cabbage loopers and tomato hornworms.
Fennel: Repels aphids, slugs and snails.
Lemon balm: Repels mosquitoes.
Oregano: Repels many pests and will provide ground cover and humidity for peppers.
Parsley: Repels asparagus beetles.
Thyme: Repels whiteflies, cabbage loopers, cabbage maggots, corn earworms, whiteflies, tomato hornworms and small whites.
Alliums
Chrysanthemums
Marigolds
Nasturtiums
Petunias
Common lantanas: Repel mosquitoes.
Four o’clocks: Attract but poison Japanese beetle.
Geraniums: Repel leafhoppers.
Narcissus: Repel moles.