Hydrangeas and Afternoon Sun: Why the “Shade or Die” Claim Is Wrong — and What Actually Kills Them

https://www.scribd.com/document/993515852/Stop-Killing-Your-Houseplants-A-Practical-30-Day-Rescue-Plan-for-Homeowners-in-Their-30s-50s-169836

People toss around a simple rule: hydrangeas need afternoon shade or they’ll die. That line is catchy. It is also dangerously oversimplified