Purple Glow Castor Bean Seed Annuals from Gurney's Seed & Nursery Co. Canoe plants are a group of plants that the first Polynesians introduced to Hawaii. There are approximately 24 species that survived long periods at sea while avoiding damage from the sun and Difference Between Annuals and Perennials Plants Best Indoor Plant Food Organic & Liquid Fertilizers Plants are a kingdom of life forms that includes familiar organisms such as trees, herbs, bushes, grasses, vines, ferns and mosses. Through photosynthesis, they convert water and carbon dioxide into the oxygen