Normal yellowing or cause for concern?

[Slap]

The last week my plant has been yellowing towards the bottom. Mostly small leaves.
I'm in So. Cal. Haven't had any issues with them for the grow season. Appears to be in early flowering stage. Haven't given any flowering nutes yet. Any suggestions ? ph is ok! In a 5 gallon fabric pot. Pro mix and perlite and verm.
mix.

 

[Slap]

The last week my plant has been yellowing towards the bottom. Mostly small leaves.
I'm in So. Cal. Haven't had any issues with them for the grow season. Appears to be in early flowering stage. Haven't given any flowering nutes yet. Any suggestions ? ph is ok! In a 5 gallon fabric pot. Pro mix and perlite and verm.
mix. View attachment 1018973

Some of the white spots on leaves are from D.E.