Quick answer
ReptilesAway keeps snakes off the patio by banding the travel corridors they use to cross from the mulch into living spaces. Most yard snakes are non-venomous and useful — the goal is to keep them in the cover. Shake the powder along the patio edge, pool-cage threshold, and fence line.
A snake in the mulch bed is almost always a good sign — it means you have rodents or insects under control. The problem is only when the same snake ends up on the patio or in the pool cage.
Why they're in the mulch
Mulch holds moisture, which draws insects, which draw the small rodents snakes eat. The edge of a mulch bed against the lawn is a perfect travel corridor.
Keep the corridor, lose the patio crossing
You don't want to clear every snake out of the yard — you want them to stay in the cover and not cross into the living spaces. A band of granular powder along the patio edge, the pool-cage threshold, and the fence line gives them a reason to stay in the mulch and the canal-edge cover instead of crossing your patio.
For the full species guide, see our snakes page. Shop the powder or book a treatment.