Heat stress from hot shed

[GnomishViking]

I had to stick my outdoor grow in the shed for a little less than two days while I was away and had a grow light on a timer for them while I was gone. Needless to say it got about 26C outside with full sun and the plant got a little hot under the grow light, when I came home to stick it outside the shed was really warm. Obviously there is now some damage from said heat.

I have never dealt with heat stress and was wondering how bad does it look? The buds still looks nice and healthy and the plant has about 4 weeks left to harvest. Am I more at risk now if it's a hot sunny day now that they are damaged? Or just I just leave it full sun as normal?

It's a really great plant and I would love for it to make it to harvest, but im worried the fan leaves are going to get worse on hot sunny days.

 

[MJmadscientist]

I don’t know that that’s entirely heat stress. The yellowing makes me think there may be some deficiency going on as well. Basically the dead leaf tissue isn’t just at the edges it’s on the interior of the leaf as well or not on the edge in places. I’ll have to do some digging but someone like @RoadKillSkunkHunt will probably beat me to it
It’s not going to dye the way she is though. Weeds a hardy plant.



Edit: I’ve looked a bit and potassium may be the culprit.

What are you feeding her currently and last she was fed?

 

[GnomishViking]

I don’t know that that’s entirely heat stress. The yellowing makes me think there may be some deficiency going on as well. Basically the dead leaf tissue isn’t just at the edges it’s on the interior of the leaf as well or not on the edge in places. I’ll have to do some digging but someone like @RoadKillSkunkHunt will probably beat me to it
It’s not going to dye the way she is though. Weeds a hardy plant.



Edit: I’ve looked a bit and potassium may be the culprit.

What are you feeding her currently and last she was fed?

Yah I know the yellowing isnt anything new. She is a rather large plant in a bit too small of a pot. I didnt think she would get his big, so I imagine she is sucking back the nuts a little hard.

I am fairly sure I put her in premix hp and she gets fed liquid nutrients every other feed with a ph of 6.2-6.5. Her last water was a feed.

Do you think she needs more or less potassium?

 

[MJmadscientist]

Yah I know the yellowing isnt anything new. She is a rather large plant in a bit too small of a pot. I didnt think she would get his big, so I imagine she is sucking back the nuts a little hard.

I am fairly sure I put her in premix hp and she gets fed liquid nutrients every other feed with a ph of 6.2-6.5. Her last water was a feed.

Do you think she needs more or less potassium?

I would think more. It looks like a nute deficiency.
You have any magnesium and some nitrogen?

That’s where I think the yellow may be coming from as well as the K contribution to the color. Maybe add some cal/mag combo. If your local farm store not tractor supply. Like a co op or ag store. If they have some calcium nitrate and you have epsome salt that would probably help with cal/mag and nitrogen.

Idk what you have for potassium but a potassium silicate, Muriate of potash, or other source would be of help there.

 

[GnomishViking]

I would think more. It looks like a nute deficiency.
You have any magnesium and some nitrogen?

That’s where I think the yellow may be coming from as well as the K contribution to the color. Maybe add some cal/mag combo. If your local farm store not tractor supply. Like a co op or ag store. If they have some calcium nitrate and you have epsome salt that would probably help with cal/mag and nitrogen.

Idk what you have for potassium but a potassium silicate, Muriate of potash, or other source would be of help there.

Yup I have cal mag, I think I have given it once or twice already, but I will again next time I water. Potassium it gets from my FloraBloom.

 

[MJmadscientist]

Yup I have cal mag, I think I have given it once or twice already, but I will again next time I water. Potassium it gets from my FloraBloom.

You should try out the 2-part mega crop and look at some of the other nutes I’m using. As well and a Hum/Fulvic acid silica blend. I’ve had far less hassle from deficiencies and burn with MC 2-part. Plus the extra hormones really make for a vigorous plant.
I’m using the sea-k with it as well. All this feeds the soil as do products like sweet candy which helps during flower stages as well. My autos thrives with the addition.
The combo also helps with many plant stressors.
As does the tri-microbes used in great white powder.
I think this is why I can do so much stressful training techniques and get little to no response from the plants. They never have really stalled on me. Just keep trucking along like a diesel engine

It’s an easy cover all and I’ve done over 30 strains in recent years on it. Like it better than anything I’ve ever used. Plus it completely dissolves and leaves nothing for the filter to catch on my fertilizer injection water gun. With the proper concentration primarily being careful on the nitrogen aspect you can even use same water nozzle to foliar water with a soil drench. This really gets everything to the nodes immediately and those hormones go to work on growing whatever stage your in with nodes. Including white hair production and fattening of blooms.

 

[GnomishViking]

You should try out the 2-part mega crop and look at some of the other nutes I’m using. As well and a Hum/Fulvic acid silica blend. I’ve had far less hassle from deficiencies and burn with MC 2-part. Plus the extra hormones really make for a vigorous plant.
I’m using the sea-k with it as well. All this feeds the soil as do products like sweet candy which helps during flower stages as well. My autos thrives with the addition.
The combo also helps with many plant stressors.
As does the tri-microbes used in great white powder.
I think this is why I can do so much stressful training techniques and get little to no response from the plants. They never have really stalled on me. Just keep trucking along like a diesel engine

It’s an easy cover all and I’ve done over 30 strains in recent years on it. Like it better than anything I’ve ever used. Plus it completely dissolves and leaves nothing for the filter to catch on my fertilizer injection water gun. With the proper concentration primarily being careful on the nitrogen aspect you can even use same water nozzle to foliar water with a soil drench. This really gets everything to the nodes immediately and those hormones go to work on growing whatever stage your in with nodes. Including white hair production and fattening of blooms.

Thanks, I will keep that in mind when I start growing next spring, Ill keep on with the nuts I am using for this outdoor grow and hopefully it can maintain a healthy plant for the next month.