Free Garden Seed Catalogs Check Out This Big List! One Hundred Dollars a Month Growing Coffee Beans at Home Growing Self Heal Plant For Your Homestead Medicine Cabinet Wildflower Seeds Shaded Woodland Partial Shade Mix Flower Seed Mixes Colocasia esculenta (taro, elephant ear) is a heavy feeder, meaning it needs rich soil and regular fertilizer to grow those big lush leaves (and edible corms, if you're growing for food). Here's Garden Safe 24 fl oz Insecticidal Soap Garden Insect Killer Trigger Spray HG 10424X at Lowes.com