Nothing changes

[Deepsea]

Leaves turning yellow. Two plants, always outside. Planted in early June, 15 liter pot. Cannibus specific soil. Unfiltered tap water. The weather has been hot and dry. Average 1.5 liters water daily, top 1 ½-2 inches dry before watering. 1ml fertilizer per liter added every third day. First three pictures one plant last two are the second plant. All advice welcome.

 

[Need2Know]

I know everyone will say, I'm an idiot, but I've found that giving the plants a little nitrogen fertiliser through out flowering helps keep your plants green. Not a lot of nitrogen because you're out of veg, but just a little. That will get you through the middle of flowering, but then, at the end of the plants life, the leaves will start to yellow anyway starting at the bottom. Good luck...

 

[Chipmunk]

Yes, on the nitrogen part. The idiot part not from me

 

[Allotrope1000]

My outdoor, in ground plants have had their lower leaves turning yellow and dropping for a month. It's normal. I don't worry about it. Summer temps hit 115°F! One is almost eight feet tall and healthy.
You might check the pH and adjust if necessary. I like the little bit of nitrogen idea.

If it were my greenhouse grow. where almost everything is controlled, I would probably check the pH and nute levels. But, I find there is usually nothing going wrong.

 

[Deepsea]

Thank you everyone. I've started adding a small amount of nitrogen. We'll see how they react.