Upper leaves of Durban Poison skinny and drooping 1 month into flower

About three weeks into flowering, the upper fan leaves of the Durban Poison became very narrow and drooping. The Golden Haze next to it has no such issues, and they both had exactly the same watering and nutrition schedule.
I have tried under- and over-watering to see if there was any change. There wasn’t. I had been giving them Fox Farm Big Bloom liquid plant food, but have paused fertilizing.
Any thoughts about what could cause this in one plant, I would appreciate it. I have had a difficult time getting Durban Poison to germinate, so I hate to lose this one.
Thanks.




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Looks like a nutrient excess. Probably N.

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It’s almost certainly an issue related to the nutes, you have very yellow leaves below the colas. A bit more info will help.

Do you check your runoff ph and if so what is it at?
What substrate are you using, potting soil or coco?
Any other nutes like calmag?

Droopy leaves to me usually means there’s too much of something in the leaves but with the yellowing leaves down bellow it could be some imbalance as well, needing a bit more calmag to use the nutes already in the leaves more efficiently.

Gl gromie!

4 Likes

I would doubt an excess of N. I stopped adding any to the soil shortly after turning to flower.
I have used the same well water for both plants. I have not checked the pH. The soil is Fox Farm Ocean Forest Potting Soil. I have used Fox Farm for all of my plants fo the last year, but that was Happy Frog. The only nutrients were the Fox Farm Big Bloom (0.01-0.3-0.7) up until about a week ago.
I will add some calmag.
Thanks.

3 Likes

def check that

2 Likes

Definitely want to check that runoff PH, if it’s out of range, your plants are starving, or absorbing only specific minerals which causes a greater imbalance and ultimately lockout. Fox Farms soil is kinda famous for PH tanking.:+1:

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Dark green, clawing, narrow leaves at the top of plant all indicate N excess. Whether this is due to PH or simply high salt levels it would be wise to measure runoff TDS and PH. How about filling this out:

COPY/PASTE the below list into your forum post.

Answer these simple questions the best you can.
If you do not know, or do not use something; Just say so; Or post
NA (non applicable)

-What strain, Seed bank, or bag seed (photo or auto)
-Age of plant
-Method: Soil w/salt, Organic soil, Hydroponics, Aquaponics, KNF
-Vessels: Type and capacity of container (fabric, plastic, etc)
-PH and TDS of Water, Solution, runoff (if Applicable)
-PPM/TDS or EC of nutrient solution if applicable
-Method used to measure PH and TDS
-Indoor or Outdoor if indoor, size of grow space
-Light system List brand and wattage/spectrum
-Actual wattage draw of lights
-Current Light Schedule
-Temps; Day, Night
-Humidity; Day, Night
-Ventilation system; Yes, No, Size
-AC, Humidifier, De-humidifier,
-Co2; Yes, No

If growing Hydro some additional questions:

-DWC? RDWC? Autopots? Ebb and Flow? Other?
-Distance of liquid below net pot (DWC)
-Temperature of reservoir
-TDS of nutrient solution
-Amount of air to solution

Always try to upload a clear picture in white light of any issues you may have to allow the community to assist you.

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