That plant WILL finish, relax.
What is your pot size? Very sudden yellowing like that makes me think that you hit pot-bound just recently and your soil conditions are getting twitchy.
Flush well and check/adjust pH to eliminate salt tox and pH problems as a source.
Re=pot into a larger container.
Enjoy your harvest in a few short weeks!
stinkyattic Reviewed by stinkyattic on . rapid yellowing? As you can see in the pictures below, an otherwise healthy plant that I have is starting to yellow out and just look sickly. This has happened before with a couple other plants, and the thing is the change is extremely fast, and these other plants went from green and thriving to completely yellowed out, crunchy, and basically too far gone to finish flowering within 3-4 days! I'm gonna flush out this plant and hopefully (fingers crossed) even out whatever problems it had, just wondering if Rating: 5