POSITIVE CIRCULATION: When a plant is outside, the positive circulation of air helps to distribute water and nutrients evenly throughout the plant. In contrast, when a plant is in a pot or container, the leaves are unable to get as much sunlight and can become dry and stunted.CHLOROPHYLL: Plants use chlorophyll to convert light into energy. Chlorophyll absorbs blue and green light more than other colors, which helps plants grow best in indirect sunlight because this type of light provides most of the energy they need.DRY CONDITIONS: Outdoors, there are better conditions for drying out leaves due to evaporative cooling (the transfer of water vapor from the air to things like skin cells). Indoor plants often have wet soil that causes them to wilt instead of cool down.