Lemon tree in a container
Hi. My lemon tree has lots of flowers and bees love it. It also produces lots of lemons but they never ripen. They stay green and hard but don’t fall off. Any suggestions will be appreciated. Renée
Certified GKH Gardening Expert
This will usually happen when there is too much nitrogen, or not enough phosphorus and potassium in the soil. You can fix this by adding potassium phosphate, or any fertilizer high in potassium and phosphorus.
It is also very good to keep dolomitic lime and iron sulfate handy. You will want to apply this every few months. This will prevent many problems before they start.