Hi There,

Looks like the raspberry bush is in a container. I wonder if you had applied any fertilizer. Marginal scorching on the leaves can be a sign of potassium deficiency or insufficient watering or both. Plants in containers need to be watered everyday, kind of like hanging baskets. A slow release fertilizer is the way to go.

Here is a pretty good article  online: https://www.bhg.com/gardening/container/plans-ideas/berries-in-containers/#:~:text=Start%20with%20three%20to%20six,after%20planting%20in%20the%20spring.

I have tried these dwarf raspberry cultivars in containers. I found that it was too hard to keep them well watered. If i missed one day, they will turn completely dry. I like bigger containers better, 5 to 10 gallons to be exact.  

I still prefer growing raspberry bushes in a raised bed so I only need to water them every 3 days or so. Here is our fact sheet on raspberries: https://ohioline.osu.edu/factsheet/hyg-1421 

Hope this helps.

Thank you for the quick response! :)

I fertilized it with Winchester Gardens Berry Granular Fertilizer; not sure if that has potassium or not. It's in a 24" pot. I definitely was underwatering at first, but have started using a moisture meter now and have been trying to be good about keeping it in the right range. It hasn't gotten appreciably healthier since I started watering more, but maybe it just needs more time? It's been about a month.

Hi There,

You are welcome! This is good to know. You are on the right track. The bush looks quite good. Hopefully, you will get it in tip top shape soon.