Just stop fertilizing. I would only do flushing with hydroponics if I had been going heavy on the feed. I always back off N right before flower, and taper it down to just P. The last couple weeks I give just plain pH’d water. I live in a legal state so I can experiment a bit after my jars are full. The 3 plants I have hanging now went to almost 90 days. It’s really strain dependent.
The kind of growth I’m referring to is looking green and happy. Towards harvest it should start to cannibalize it’s lower leaves and fade.
Lower leaves start to wither; Trichs are still clear with a hint of cloudy. It still get’s fertilizer but I’m thinking about flushing her soon.
Just stop fertilizing. I would only do flushing with hydroponics if I had been going heavy on the feed. I always back off N right before flower, and taper it down to just P. The last couple weeks I give just plain pH’d water. I live in a legal state so I can experiment a bit after my jars are full. The 3 plants I have hanging now went to almost 90 days. It’s really strain dependent.