According to a expert, pine needle mulch is good for garden soil but does nothing to the acidity. Gardeners have been putting pine needle mulch, also known as pine straw, on acid-loving plants ...

Definitely an organic mulch: wood chips, rice hulls or pine needles. All mulches should be ... It does, however, require part to deep shade and acidic soil that is moist and rich in organic ...

In a nutshell, if the soil is acidic, the flowers will be ... hydrangea blooms to stay blue, due to the pine needles that make such a terrific mulch. This is a common myth that's not true and ...

you could use the leftover pine needles and even the bark to mulch hydrangeas, as both will help make the soil more acidic. The gardener said: “Hydrangeas prefer slightly acidic soil (pH 5.5 ...