calcium and acidity question
hello,
(zone 5)
i use vinegar in certain acid requiring plants' water (hibiscus, azalea)
to maintain (or get to) a pH 7... the vinegar / water's pH is ~ 5 or
6...
have heard that certain elements are unAvailable in acidic environments
for ex calcium and wonder whether i should supplement these with calcium
containing fertilizer (even though the soil pH is only minimally acidic
(since i am assuming that the tap water is the calcium source)
thank you!
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