Gardening is not an exact science so whatever works for you is OK If you want to put a diluted bleach in,then fine,but I don't think it does any good but it won't do any harm.As for Roses ,they are something I don't grow but bashing the stems would,I think,damage the tissues the natural way is to take water up through the stem.I could be wrong.but my chrysanths take it up OK and they have woody stems
Are late deals a thing of the past ?



