Container plants are overfed more often than garden beds because nutrients have nowhere to escape. A little extra fertilizer in a pot can concentrate quickly around roots and create toxic conditions fast. Pot plantations laying waste to national forests KNKX Public Radio Sugar baby watermelon growing on my trellis! : r garden Building Trellis Cedar Planters Brooks & Stone Some of the natural fertilizers for your houseplants: Coffee Grounds: Great for acidic loving plants like Fiddle Leaf Fig, Peace Lily, and Calathea. Plus, it's a wonderful way to repurpose your morning brew! Clearance garden finds and plant holder deals