Choosing the right spot for your urban planter boxes is crucial, and sunlight is the key factor. Here's a straightforward guide to determine if your location gets enough sun.
First, understand what "enough sun" means. Most vegetables and flowering plants need 6-8 hours of direct sunlight daily. Leafy greens and some herbs can manage with 4-6 hours.
The most reliable method is to perform a simple sun map. For 2-3 typical days, observe and record the sunlight on your chosen spot. Note the time when direct sun first hits the area and when it leaves. Mark these times hourly. This "sun map" reveals your total daily light hours.
Pay attention to obstacles. Buildings, walls, fences, and even large trees can cast significant shadows, especially in the morning or afternoon. Remember, the sun's path changes with seasons; a spot sunny in summer might be shaded in spring or fall.
If your spot gets less than ideal sun, don't despair. Select plants suited for partial shade, like lettuce, spinach, kale, mint, or parsley. You can also use reflective materials (like white walls or foil) to bounce extra light onto your plants. For deep shade, consider supplementing with grow lights.
Finally, be ready to adapt. Urban environments change. The beauty of planter boxes is their mobility. If you find a sunnier spot later, you can often move your garden to follow the light.