Any idea what this is?

[Surfer Joe]

Some of the lower fan leaves have started doing this in the last week. The plant has 3-4 weeks to go.
Any ideas what it might be?
Thanks for any advice.

 

[pute]

Looks like it is turning purple. If so it is a normal fade.

 

[ROSTERMAN]

Have you done any cal/mag

 

[pute]

I always drop the cal/mag 30 days out...stuff makes the smoke harsh if you don't. What strain?

 

[ROSTERMAN]

I always drop the cal/mag 30 days out...stuff makes the smoke harsh if you don't. What strain?

No one ever said that before

 

[leafminer]

Old age. There is a way to prevent this but it takes a while. When the plant is young and good looking paint a picture of it. Put the picture out of view in a wardrobe. As long as you don't look, the picture will get pests on it, turn brown, and rot away. But that plant... it will crop forever and never die. But if you DO look... all those things will happen to YOU.

 

[Surfer Joe]

It's a wedding cake auto. I have two growing and they are as different as night and day.
It's amazing what breeders can get away with calling the same strain. I suspect that many of the odd issues that arise in some plants while growing are due to incompetent breeders and Murphy's law.
I use calmag and canna nutes in soil and they live outdoors in the day and in the greenhouse at night.

 

[pute]

IMO nothing is wrong and I think that is what leafminer said. Natural fade.