What are the key differences between polyethylene and polypropylene outdoor planters in terms of durability?

When choosing outdoor planters, durability is a critical factor. Polyethylene and polypropylene are two popular plastic materials, but they differ significantly in performance. Polyethylene planters are known for their flexibility and impact resistance, making them less prone to cracking in cold weather. However, they may degrade faster under prolonged UV exposure. Polypropylene planters, on the other hand, offer superior UV resistance and rigidity, but they can become brittle in extreme cold. Both materials are lightweight and waterproof, but polypropylene generally lasts longer in harsh sunlight. For long-term outdoor use, polypropylene is often the better choice, while polyethylene suits moderate climates. Consider your local weather conditions when selecting the right material for your planters.