While convenient, portable and functional, grow tents are designed and optimized for controlled environment indoor use to create ideal concentrated lighting, dialed humidity, and stable air temperatures that plants thrive in. Grow tent exteriors lack adequate waterproofing or structural stability for permanent placement outdoors fully exposed to the elements. However, you can safely use grow tents for seasonal or temporary stretches in sheltered transitional environments like garages, patios or greenhouses to take advantage of natural sunlight while monitoring conditions regularly.