Blueberry problem

Asked May 16, 2020, 2:18 PM EDT

Hello! I was wondering if you could help me with this problem? My blueberries started getting brownish colour on their leaves, marginal. What can be the problem?
Thank you for the answer!

Michigan

1 Response

If those blueberries are from Michigan they must be inside. I think that is a potassium deficiency. It could also be fertilizer burn from too much fertilizer which have burned the roots, or drought stress. Here is a link to some information of potassium deficiency. https://www.canr.msu.edu/uploads/files/Potassium%20deficiency.pdf
I generally recommend fertilizing potassium sulfate not, potassium chloride the common potash fertilizer. For small plantings I recommend using a rhododendron/Azalea mix such as Mir-Acid which has the correct blend of nutrients.