This can help with pest control as well as improve hydration, which helps plants, including hydrangeas, thrive.
Coffee grounds can be beneficial for hydrangeas, especially if you want to enhance blue blooms, but I use them as a feed.
Simply sprinkle coffee grounds around the base of the plant, creating a thin layer around half an inch thick.
They can also be added directly to the soil, or even your compost pile, to enrich it further.
What’s more, my local National Trust and some coffee shops offer free leftover coffee grounds, a great way to prevent waste and make the garden thrive.
When fed with coffee grounds, my hydrangeas bloom for longer periods and are stronger.
I’ve also tried banana peels, but I prefer coffee grounds because I have more available.
It’s important to use coffee granules sparingly and only use them on plants which will benefit from it.
Some plants which will not benefit from coffee grounds include lavender, rosemary, thyme and most Mediterranean herbs.
Certain flowering annuals, such as geraniums and petunias, may also struggle with coffee grounds.
Tomatoes, on the other hand, benefit from a diluted coffee feed, but avoid going overboard.
