My Crocrosmias are turning yellow!

Hi guys, me again. The leaves on my Crocrosmias are turning yellow in one pot. No idea why because the ones in a pot really close to them are lush green. I water them twice weekly and feed them every fortnight. I treated all my pots for vine weevil two months ago. Should i up the watering? Worried that i might lose them. They get sun from 10-7 every day. Any advice would help. Thanks

 

Hi Gareth,

Looking at your photos I would say that it's just natural as it seems to be only on the lower leaves.

You seem to be doing the right things, but. as to watering, only you can tell that, by feeling the weight of the pot or sticking your finger ( sorry about the phrasing I couldn't think of another way if putting it ), and seeing how damp it is.

 

Thanks, just a bit worried as it's only happening in this pot. I'll keep an eye on it and hope they improve