Need help with some sort of deficiency..

Hey guys, a little background first I guess...

Second time ever growing, first one was fairly successful, maybe just luck, but this time around I am starting out pretty rough and by no means an expert.

The strain is indoor White Widow, potted in Fox Farms soil, with a 300W LED full spectrum panel on her, and she is just a few weeks old. The lighting schedule is 18 on and 6 off.

The new leaves seem to start out very nice looking, then as they grow there seems to be some serious cupping upwards along with brown and yellow tips that eventually spreads to over the whole leaf. I can try to give anymore information that is needed to anyone with some knowledge on what is going on.

I posted pics to show.

Thoughts? Ideas? Help!!

How far is your light panel? What is the highest temp you have seen in your grow area? Which fox farms soil? Have you fed her yet?

SPLFreak808 said:

How far is your light panel? What is the highest temp you have seen in your grow area? Which fox farms soil? Have you fed her yet?

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At first I started just a few inches above the plant, but have since moved the panel up.

I need to get an accurate digital thermometer I guess, but the grow area doesn't feel too hot and I do have a fan blowing directly on her when the light is on.

The Fox Farms soil was Ocean Forest.

About one week ago I did feed her some fox farms nutes, but a very lite amount. About a 1/4 of what the instructions said...the growth seems to have helped in size, but the leaves keep curling and wilting. You thinking heat and nutes??

PlantsAreNeat said:

At first I started just a few inches above the plant, but have since moved the panel up.

I need to get an accurate digital thermometer I guess, but the grow area doesn't feel too hot and I do have a fan blowing directly on her when the light is on.

The Fox Farms soil was Ocean Forest.

About one week ago I did feed her some fox farms nutes, but a very lite amount. About a 1/4 of what the instructions said...the growth seems to have helped in size, but the leaves keep curling and wilting. You thinking heat and nutes??

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Thats what im thinking. If you added fox farms big bloom i think you would be okay,Also try to get your fan to circulate the air around the space, not directly at the canopy, that can cause some weird shit. Just hang in there for the more experienced to chime in

SPLFreak808 said:

Thats what im thinking. If you added fox farms big bloom i think you would be okay,Also try to get your fan to circulate the air around the space, not directly at the canopy, that can cause some weird shit. Just hang in there for the more experienced to chime in

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Yes it was Fox Farms Big Bloom, but again a small dose. Any thought on whether giving a bit more nutes may help, or no? Thanks for the input!

my only advise is to not have too much air blowing directly at it. Plants seem to like higher humidity in Veg too much direct airflow could dry em out

Honestly i cant tell if she is hungry from your pics, i vegged for 2 months in ffof before finding any deficiencies. What is your PH in? Is it getting worse?

PlantsAreNeat said:

Yes it was Fox Farms Big Bloom, but again a small dose. Any thought on whether giving a bit more nutes may help, or no? Thanks for the input!

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Don't give it more nutes if you dont know it's in need. It is rare to have a true deficiency so early it is mkmore likely that your ph needs adjustment which would make the nutrients usable as certain nutrients are more or less available at certain ph levels. here is a chart that might come in handy for ya

Ya thats light burn, or nute burn. Too bad because the plant looks to be off to a good start, or was off to a good start. Itll grow outta it when you fix the problem.

Thanks for the replies guys!

So questions. 300W LED panel, how close to the plant you think it should be? Fan is going circulating air around the area.

Would it help to bring her outside and put the hose in the pot and give her a good long flushing?

I recommend 24" as a good starting point for the distance from the top of your plant to your 300w led. Wouldn't recommend the garden hose flush

DWC enthusiast said:

I recommend 24" as a good starting point for the distance from the top of your plant to your 300w led. Wouldn't recommend the garden hose flush

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Oh man, maybe that is my problem, I have had my LED panel WAY closer than that. Moving up now!!

PlantsAreNeat said:

Oh man, maybe that is my problem, I have had my LED panel WAY closer than that. Moving up now!!

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ya the "back of the hand" test does not apply to leds. They can pound the canopy with light to the point of burning leaf without even feeling warm

DWC enthusiast said:

ya the "back of the hand" test does not apply to leds. They can pound the canopy with light to the point of burning leaf without even feeling warm

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You sir must have been reading my mind! I have been thinking to myself this whole time that it doesn't "feel" hot down by the canopy, but I have the lights moved up now.

Any thoughts on anything I can do to help give her a quick turnaround now that the lights are up higher?

The best thing to do would be to keep the environment as stable as possible. she will bounce back just fine and the stress could be considered "hardening" the plant to make it less susceptible to heat damage/ "sunburn" in the future

DWC enthusiast said:

The best thing to do would be to keep the environment as stable as possible. she will bounce back just fine and the stress could be considered "hardening" the plant to make it less susceptible to heat damage/ "sunburn" in the future

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Thanks for the help and advice. I will keep everyone updated with more pics soon to see if she gets any better!

PlantsAreNeat said:

Thanks for the help and advice. I will keep everyone updated with more pics soon to see if she gets any better!

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Always happy to help any way I can I look forward to seeing her bounce back and out of curiosity how low was your light?

DWC enthusiast said:

Always happy to help any way I can I look forward to seeing her bounce back and out of curiosity how low was your light?

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In all honestly the panel was like six inches above the plant lol

PlantsAreNeat said:

In all honestly the panel was like six inches above the plant lol

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Holy cow ya that's light burn i have very little doubt about it. My 400w Hid could cause light burn at 10 in. (And it was not heat related) and 300w led has monstrous light output compared to 400w mh

DWC enthusiast said:

Holy cow ya that's light burn i have very little doubt about it. My 400w Hid could cause light burn at 10 in. (And it was not heat related) and 300w led has monstrous light output compared to 400w mh

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Wow hopefully it is an easy fix then!! Thank you for the input, sir.

I am glad to hear the LEDs are that strong, hopefully at the right distance I can get some good yields.