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.
Maintain consistent soil moisture; mulch to help preserve it and keep soil temperatures down. Apply a hydrangea fertilizer that encourages soil acidity. Liquid seaweed and molasses sprays can help ward off fungal problems. You also can fertilize leaves and soil with diluted fish emulsion.