Do you know an infallible rule to remmeber which plants prefferan acid siol and does adding vinegar to tap wat

Question:for indoor plants?

Answers:
The best thing you can do for yourself(and your plants) is to purchase an inexpensive book on houseplants. You will not regret it, and it will be invaluable. I am an avid gardener, but have never heard of using vinegar to amend soil to become alkaline.(not that it is not true). I have many books, and my favorites are dog eared and used constantly. I write certain information on the inside flaps, and stick small post-its to the pages that I reference frequently.I also jot down info on pages, and highlight useful details with marker for easy access. There are three factors that all plants need in fertilizer. These essential nutrients create the correct PH (potential hydrogen) balance that are required to achieve healthy thriving plants. NITROGEN: promotes leaf growth, PHOSPHORUS;stimulates both root growth, and the formation of flowers, POTASSIUM; contributes to stem strength, as well as increasing resistance to diseases. Your soil must be balanced for your ensured success. There are also inexpensive soil test kits that are great, no guess work required. Happy Gardening!