Is heat or cold really bad for the plant?

Both extreme heat and cold can be detrimental to plants, but the effects vary by species. Excessive heat can lead to dehydration, sunburn, and stress, while freezing temperatures can damage or kill plant cells. Most plants thrive within specific temperature ranges, so conditions outside of these limits can hinder growth and development. Proper care, including shading or insulation, can help mitigate these temperature extremes.