[Question] Hello, I want to use a topical solution to increase soil acidity.  I have happy blueberry bushes in OH clay so I wanted to add something this spring to keep them happy.  I have azalea acidifier from the store but thought I would rather make something.  My idea is to spread wood ash on top to increase acidity?  Any other suggestions?

[Answers]

• The wood ash would increase the alkalinity.
• You could use pine needles or oak leaves or coffee grounds.
• Peat moss will increase acidity.  Learn more >