It's obvious to say plants need both warmth and light to grow, but have you ever wondered why exactly this is the case? Or, perhaps you're unsure why hardiness zones matter and how your local climate affects the ability for plants to grow.
Plants need sufficient warmth at every stage of their lifecycle - from seeds to mature plants. However, the optimal temperature required for healthy growth will differ between plants and depend on factors such as their native habitat. This also impacts which regions plants can grow in, which is why it's worth familiarizing yourself with what can grow in your US hardiness zone.
