Potassium Deficiency or Excess?


Autumn Haze Autoflower
Indoor Tent
Temperature: about 65- 70 degrees
Humidity: 60%
Ph: ?
LED lights (300W and 1,500W)

I raised the lights as the Sativa has grown higher. It is about 12” above.

A little over a week ago, I added Miracle Gro Organics for Edibles (7-6-9)

I’m seeing this on the leaves. What should I do?

You say you raised the light to 12”, what were they at before ? Looks like some of your leaves are folding up on the side which could indicate heat stress/ light stress. This could also be why your seeing yellowing, Also seems like most of the damaged is towards the top closest to light.

Miracle grow not the best chose for cannabis, but I have seen successful grows with it.

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They were around 8”-10”, but mostly because they grew faster than I thought. I’m growing a Blueberry as well that is about 2 weeks ahead and is now smaller.

The color on the edge of the leaves, plus some yellowing of other leaves made me think something might be off. I only used a small amount of the Miracle Grow. I didn’t want to introduce too much in terms of nutrients.