Leaves yellowing at bottom of plant

Looks nitrogen deficiency. If it's in flower, that's to be expected due to aggressive growth.

Hello,she is in need of a good full spectrum feed . If you have time ,give her a spray down with seaweed/kelp or Epson salts ,🙏for a quick source of magnesium. If your all organic you should make her up some high Nitrogen tea,and apply to roots and leaves, Organics release nutrients a lot slower,that why it would help quickly if foliar fed.

step up N 5-10% as best you can without changing anythng else if possible. i see some yellowing on mid-level leaves too. it can def handle more N safely from what i see, so no problem trying it out....

grannie's got you.

This is just a natural dying off and there's nothing to worry about... you can trim those leaves as they're not contributing to the plant's growth any longer. Now, if the yellowing was in the MIDDLE of your plant, it would indicate some problem you'd need to address... this is nothing but a natural die-off. Good luck!

2 reason it can happy 1 lack of nitrogen. 2 lack of light causing the plant to defoliate itself. Your case I believe would be natural defoliation.