20+ Raspberry Leaves Turning Brown. Leaf burn occurs in raspberries when any number of essential nutrients are in low supply, so you may not be able to determine which specific nutrient is needed unless you test your soil using a home test. In the last few days i've noticed the edges on my raspberry plants are turning brown and it doesn't seem to be improving.
If new leaves that come in are healthy, you know you are on the right track.
· raspberry curd tart makes a stunning and delicous dessert! Leaves may dry, turn brown, and become brittle. In the last few days i've noticed the edges on my raspberry plants are turning brown and it doesn't seem to be improving. Don't use regular soil, it doesn't breathe as much and may lead to root rot (and, in turn, more brown leaves).