We have raspberry plants in our backyard garden and have successfully harvested berries for a couple of years. Last year was a great season - and we had a successful harvest. I pruned the plants to ground level, as in the past, and this year they grew beautifully - tall and strong - but no berries. Don't understand what happened. Here it is July and not one berry in the entire garden.
This has been a difficult growing season for gardeners. If you are getting flowers with no fruit, this is typically a pollination issue. These articles may help:
If you are not seeing any flowers, then it is likely due to a lack of phosphorus in the soil. This can be remedied by using a phosphorus rich fertilizer or adding bone meal to the soil around your plants.