Herbs That Repel Spiders Indoors

Rosemary, lavender, and basil deter spiders. Place 1‑inch rosemary sprigs on shelves, under appliances, in closets. Lavender containers at entrances repel flies and spiders. Cedar oil on closet rods and baseboards adds protection. Lavender also promotes sleep—try a drop on a stuffed toy for fussy babies. These herbs create a pest‑unfriendly environment without chemicals.