It’s obvious that plants need both heat and light to grow, but have you ever wondered why exactly this is the case? Or maybe you’re not sure why hardiness zones are important and how your local climate affects the ability of plants to grow.

Plants need sufficient heat at every stage of their life cycle, from seeds to mature plants. However, the optimal temperature required for healthy growth will differ from plant to plant and depend on factors such as their native habitat. This also impacts the regions in which plants can grow, so it’s worth familiarizing yourself with what can grow in your country. American Hardiness Zone.