The most common type, formed when calcium combines with oxalate in the urine. - Calcium Phosphate Stones: These stones develop in alkaline urine. - Uric Acid Stones: Formed when urine is excessively ...
Though tolerant of most growing conditions, acidic soil is a must. Why we love it: The pin oak attracts butterflies and hummingbirds and provides food for the gray hairstreak butterfly and squirrels .