Soil sample - Ask Extension
2 years ago a large group of hydrangeas died, we water and fertilize and they’ve been there for more than 30 years although some new bushes have bee...
Knowledgebase
Soil sample #928145
Asked April 12, 2026, 1:21 PM EDT
2 years ago a large group of hydrangeas died, we water and fertilize and they’ve been there for more than 30 years although some new bushes have been added. I’d like to test the soil before I replant- how do I obtain a mailer?
Benzie County Michigan
Expert Response
Hello and thank you for reaching out to MSU Extension. Here is some information about the soil testing:
What soil test results/fertilizer information will you receive?
- pH value
- Nutrient levels for phosphorus (P), potassium (K), calcium (Ca) and magnesium (Mg)
- Soil organic matter (OM) percentage
- Personalized recommendations for fertilizer and any needed pH modifications
Note: Purchase of this product (the Soil Test Kit Mailer) does not include testing for soil contaminants (e.g. lead, arsenic, pesticides) or water contaminants (e.g. harmful bacteria).
You can purchase a soil test kit here:
