The cycad prefers water with little lime, preferring rainwater, but not too much of it. He also does not need large quantities of fertilizer. Even if you didn't react immediately to the discoloration of the leaves, there is still hope for your sago palm.
Plant the cycad in unfertilized soil and stop watering and fertilizing completely for some time. The sago palm should be really bright. Then water and fertilize sparingly until the plant has recovered.
Common causes of yellow leaves on the sago palm:
- too much water
- too much fertilizer
The sooner you react to the yellowing of the fronds, the faster your sago palm will recover.