If you share your urban space with curious feline friends, you know the struggle of keeping them out of your precious plant soil. The good news is, yes, there are several effective planter box designs and modifications that can help. The key is to make the soil surface inaccessible or unappealing.
Start with the structure. Opt for tall, raised planter boxes or elevated stands that are difficult for cats to jump into. For existing planters, add a physical barrier. A sturdy metal grid or mesh (with openings large enough for plants but too small for paws) placed securely over the soil is highly effective. You can also embed blunt, plastic bird spikes or specially designed "scat mats" on the soil surface; these are uncomfortable to walk on but harmless to cats and plants.
Consider covered planters, like those with built-in trellises or arches that obstruct access. For a decorative touch, tightly pack large, smooth stones or pine cones on the soil surface. This method allows for watering while deterring digging.
Always avoid using anything sharp, toxic, or sticky. The goal is to deter, not harm. Combining these planter strategies with providing your cats with their own attractive alternatives, like a pot of cat grass, can successfully protect your urban garden and keep your pets safe and happy.