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.
Unless your soil is defficient in minerals like phosphate, I would not apply more. Hydrangeas are not heavy eaters of fertilizers and amendments like other plants are. An amount as specified in the product label would be safe assuming your soil needs phosphate. Too much of it can eventually decrease mycorrhizal activity. Phosphorus helps roots and blooms develop.