Citrus in alkaline soil
I've read here that citrus like acid soil. Our house is built on a former citrus grove, and our tangerine tree has done marvelously well for decades.
Yet, our soil is alkaline (confirmed by our sizzling-HOT PINK Hydrangea). My mom's soil is acidic and sandy (blue hydrangea, thriving Azaleas and Camellias) and her house is also on a former citrus grove (many years ago) yet her citrus trees don't appear any happier than ours in alkaline clay.
Our Brunfelsia (likes acid soil, I'm told) is happy as a clam (fed with cottonseed meal several years ago but not since) yet the acid-loving Azaleas (long gone) failed to thrive.
I'm curious about these inconsistencies and wonder if anyone can explain them.