I have been out of my place for more than one month but I asked a friend to give water to my plants, including my beautiful Cycas revoluta. I don't think my friend gave the plant too much water (since he came only three times in one month), but now the leaves at the bottom of my cycas are entirely yellow as you can see from the attached pic.
Now, I don't see any fungus and the soil was very dry when I came back home, so I gave the plant a bit of water. Living in London the rain can be an issue but till now the plant was great! So I am not sure what to do (not watering can be the solution), but then the leaves will stay yellow? Shall I cut them? Thank you for any advice!