Herbs That Deter Slugs: Myth or Reality?

A gardener asked if any herbs truly repel slugs, noting they've seen slugs on rosemary.

No Magic Herb—But Physical Barriers Work

Leroy knows of no herb that reliably deters slugs. Slugs hate abrasive surfaces: sand, crushed eggshells, diatomaceous earth, or glass shards.

Slugs swarm this plant, which numbs their mouthparts and causes them to slide off. It's a sacrificial trap, not a repellent.

Herbs: Impatiens Under Pine Tree: Less Is More for Party-Perfect Blooms; Slugs on Herbs in Melbourne: Escar-Go, Ammonia, Coffee; Do Culinary Herbs Need Fertilizer? Organic Feeding Advice; Drying Fall Herbs: Species-Specific Methods for Maximum Flavor; Should You Eat Herbs Treated with Fungicide? A Cautious Perspective; How Many Mini Calla Lilies and Hydrangea Stems for a 3.5-Inch Square Vase?; Southern PA Garden Plan: Herbs, Vegetables, and Weed Control; Organic Slug Control for Hawaiian Gardens; Herb Harvest & Preservation: Maximize Flavor & Shelf Life; Growing Herbs at Home: From Windowsill to Garden Abundance

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