Successful urban gardening begins with strategic planter box placement. The single most important factor is sunlight exposure. Most edible plants and flowering species require 6-8 hours of direct sunlight daily. Observe your space throughout the day to identify areas receiving adequate light, typically south-facing locations in the Northern Hemisphere.
Consider microclimates created by buildings and surfaces. Light-colored walls can reflect additional sunlight, while dark surfaces may generate excessive heat. Position planters where they receive morning sun when possible, as it's less intense than afternoon rays that can scorch delicate leaves.
Wind exposure significantly impacts plant health. Tall buildings create wind tunnels that can damage plants and dry soil rapidly. Place planters near walls or barriers for protection, but avoid completely enclosed spaces where air cannot circulate. Elevating planters slightly improves drainage and prevents waterlogging.
Accessibility matters for consistent maintenance. Ensure you can easily reach all plants for watering, pruning, and harvesting. Group planters with similar water needs together to streamline care routines. Rotate containers seasonally as the sun's angle changes throughout the year.
Proper placement combined with quality soil, appropriate container size, and regular care creates an ideal environment for urban plants to thrive, bringing nature's beauty to even the smallest city spaces.