Stop applying the same care rule to every pot. This practical digital checklist helps beginner houseplant owners work through yellow leaves plant by plant, so you can narrow down whether light, water, pests, or repotting is the likely cause. Use the checklist to observe the plant, check its growing conditions, identify warning signs, and choose a sensible next step before making changes. It is designed for households with several houseplants, where each plant may need a different diagnosis. Instead of guessing or overcorrecting, you get a simple repeatable process for sorting symptoms and preventing common care mistakes. Use it whenever yellow leaves appear, when a plant’s condition changes, or when you want to review your current care routine. Delivered digitally for immediate use, this checklist gives you a clear starting point without requiring advanced plant-care knowledge.