A Univ. of Nev. School of Medicine, Family Medicine answered. No, there are times where you can have small releases of bacteria into your bloodstream that last only a few minutes, for example, after you have your teeth cleaned.
The addition of lime to the soil around the hydrangea wonât change the flowerâs color overnight. Depending on the soilâs texture, it may take months or even up to three years, according to Reeves. Monitor the soilâs pH twice a year.
There are many different varieties of hydrangea, including small and large shrubs and strong climbers. They all do well in dappled shade. Hydrangeas bear large heads of multiple florets in white, pink, or blue. You can actually change their colouring by the addition of chemicals.