Successful indoor gardening requires a balance of environmental control, proper hydration, and nutrient management. The provided texts emphasize that light quality, air circulation, and temperature are fundamental drivers of biological processes like photosynthesis and transpiration. Managing Vapor Pressure Deficit (VPD) is highlighted as a sophisticated method to optimize growth by balancing humidity and temperature. The sources also warn against overwatering and fertilizer burn, noting that excess salts or stagnant water can cause root rot and nutrient deficiencies. Furthermore, choosing high-quality water and identifying specific pests or diseases are essential steps for maintaining plant health. Experts recommend tailored care, such as using larger pots for rootbound plants and following pesticide labels strictly to prevent injury.