About a month ago I planted some Canby raspberries, but not being much of a gardener, I didn't do anything to prepare the soil. It was my impression that raspberries were an extremely hardy plant that need little care.
I'm guessing that I was wrong. First I noticed that plant 2, six feet from plant 1, was looking pretty wilted days after planting. Yellowing and drying leaves. All the while plant 1 seemed to be doing great. Both plants were starting to produce the small white flowers expected. I pinched off some of the lower yellow leaves and increased watering a bit. While P2 seemed to perk up a little, it still wasn't doing nearly as well as P1.
As the yellowing issue seemed worse, a friend advised reduced watering. This produced extreme wilting and drying, even of green leaves, not to mention the yellow ones. Bad plan. Neither plant responded well to this. Now P1 is starting to show some of the same symptoms that P2 started out with.
The local nursery advice sprinkling some ferrous sulfate around the plant to help it green up. So we sprinkled some around the base of the plants and watered it in, but leaves are still drying up, turning yellow and falling off. All the while, new short canes at the bottom seem to be strong and looking nice. Older longer canes, now with small berries developing, aren't looking so good still.
Thankfully we are getting some rain today so I won't water, but I'm becoming very worried about these plants. Most advice I read says they need more water while fruiting but watering so much worries me and refraining from watering worries me as well.
I think the plants were improperly pruned, or not pruned at all, at the nursery, in order that they might sell them. It seems this variety should be pruned in early spring and these clearly weren't pruned, but they looked pretty well, at least until I took them home and planted them.
I understand now that I should have better prepared the ground, and probably planted further from the brick wall they are near, but my choices were limited and the wall is only on one side.
I would greatly appreciate any ideas about how to help this unprepared soil support these berries. I think they might do better if pruned correctly next time, if I can only keep them OK until Oct.