Knowledgebase
Raspberries failing to thrive and grow #867642
Asked May 08, 2024, 5:52 PM EDT
Yamhill County Oregon
Expert Response
It looks like a nutrient deficiency and/or pH problem. My first suggestion when a plant fails to thrive, is to get a soil test done, so we know the soil's nutrient status, then we can make some informed decisions. OSU Extension publication, "Analytical Laboratories Serving Oregon" lists the laboratories which they recommend.
Once you choose a soil testing laboratory, you can go to their website for the specifics on how to prepare the sample and how much soil to collect, (typically around 2 cups of soil). For a small additional fee, they will give you fertilizer recommendations.
Once you have that information, and apply the needed nutrients, if in fact any are lacking, and the plants still are doing poorly, we will look for a disease.
Cornell University has a wonderful on-line diagnostic tool for berries. Here is the link to the raspberry page.