What the climate zone map can tell you about a plant’s growth potential

Travel is always a gratifying experience for us plant lovers because of the many opportunities to learn something new about the botanical world. Not only are we introduced to plants that don’t grow in our climate, but we also see familiar plants in a new light when we find them thriving in locations where the conditions for growth are so much different from our own.  

When you take Biology 101 in college, one of the first terms you learn is “limiting factors to growth.” Where plants are concerned, the primary limiting factor is cold.