Nutritional Requirements of Plants General Biology I Fiveable Gardening in zone 9b means my hot pepper plants can be perennials. I grew these Thai pepper plants from seed and we will be going into our 4th year this coming spring. Putting them to rest (a little How to Tell and Fix Too Much Light on Plants? I keep a plant journal, where I keep track of my plants growth, needs and watercolor how the look at the time of the entry : r houseplants File:Acanthus mollis01.jpg Wikimedia Commons