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.
The way you prune hydrangeas depends on the type of hydrangea and how it blooms. Some types (such as yours) bloom on old wood, so they shouldnât be pruned severely other than to remove dead branches. Other types bloom on new wood, so some strategic pruning can help them thrive.Here are some tips for pruning the hydrangeas in your yard. 1  Mophead or Lacecap Hydrangeas: (Hydrangea macrophylla) All hydrangeas with colored flowers (pink, purple, and blue) fall in this category, as well as some types of white hydrangeas.ther types bloom on new wood, so some strategic pruning can help them thrive. Here are some tips for pruning the hydrangeas in your yard. 1  Mophead or Lacecap Hydrangeas: (Hydrangea macrophylla) All hydrangeas with colored flowers (pink, purple, and blue) fall in this category, as well as some types of white hydrangeas.