URBAN PLANTER BOXES

As winter approaches, many urban gardeners wonder how to protect their planter box investments. Overwintering plants in containers requires different strategies than in-ground gardening due to increased exposure to temperature fluctuations. Start by selecting cold-hardy plants suited to your USDA zone, as these have the best survival chances. When frost threatens, move tender perennials to protected areas like garages or against building walls where temperatures remain more stable. For plants that must remain outdoors, employ insulation techniques such as wrapping containers in bubble wrap or burlap, and mulch heavily around plant bases. Grouping containers together creates a microclimate that reduces wind exposure. Reduce watering significantly during dormancy, but don't allow soil to completely dry out. For extreme climates, consider building simple cold frames or using horticultural fleece during particularly harsh nights. Come spring, gradually acclimate your plants to warmer temperatures and resume regular watering as new growth appears. With proper preparation, your urban garden can thrive year after year.