If you're finding your urban planter boxes turned into miniature excavation sites by squirrels, you're not alone. These agile creatures can be a significant nuisance for city gardeners. Fortunately, several effective and humane strategies can protect your plants.
Start by creating physical barriers. Cover the soil in your planter boxes with a layer of chicken wire or hardware cloth. Squirrels dislike the feeling on their paws and will be discouraged from digging. Ensure the mesh has holes large enough for your plants to grow through but small enough to be an effective deterrent. For added protection, consider placing a few large, smooth stones on top of the soil around your plants.
Another powerful method is the use of natural repellents. Squirrels have a strong sense of smell, which you can use to your advantage. Sprinkle cayenne pepper, crushed red pepper flakes, or commercially available capsaicin-based sprays on the soil. The spicy scent is offensive to squirrels but harmless to your plants. You will need to reapply these after watering or rain. Used coffee grounds are another excellent option; they not only deter squirrels but also add nutrients to your soil as they decompose.
Modifying your watering schedule can also make a difference. Squirrels are often attracted to dry, loose soil that is easy to dig in. By keeping the soil slightly more moist (but not waterlogged), you make it less appealing for their activities. Watering in the morning is often best.
For a more proactive approach, provide a distraction. Set up a dedicated squirrel feeding station away from your prized planters with a mix of nuts and corn. This can often convince them to leave your garden alone in favor of an easier meal.
Consistency is key. Squirrels are persistent and intelligent, so a single solution may not work forever. Often, a combination of these methods—like using a physical barrier alongside a scent repellent—will yield the best and most lasting results for your urban garden oasis.