Frost and freezing temperatures pose significant risks to outdoor plants, especially during hard freezes. When temperatures drop below 28°F (-2°C), plants can suffer severe damage or die. Gardeners in regions prone to cold winters should take precautions to protect their plants, particularly those that require a dormant period to thrive. Without proper shelter, plants may experience frost damage, which can hinder their growth and flowering in the next season. The longer freezing temperatures persist, the greater the risk to plant health.