Wondering why a certain plant isn't thriving? Well, it might just be your soil.
Just like humans, plants need nutrients too.
Do you want your hydrangeas blue? Knowing your soil's PH will help you achieve that.
For true blue blooms in a hydrangea, the PH needs to be 4.5
This kit will allow you to test your soil's PH, nitrogen, phosphate, and potassium levels.
Instructions for use can be found here.