Leaf Curl - Over watering??

I've posted some pics of my cheese planted which is in day 26 of flower now. This is my 3rd closet grow but first under a decent light.

1.5m h x .75m w x .4m d
600w hps
John Innes No.3 mixed with pearlite
Feeding Hesi Bloom & Top Maxx every other feed.
Temp at top of plant 86C
Light is .4m from top of plant


I have been watering every 3 days and allowing a good run off, is this too much for the plant? The buds are looking lovely but the leaves are not looking healthy at all, leaf curl & yellow spotting and I was wondering if this is normal for this stage or if it could be due to over-watering or over-heating? I do have a fan on the plants but it doesn't have much oomph!

I've also noticed how skinny the leaves are looking, as if they're yearning to be size zero :o

Any advice greatly appreciated, I've still got so much to learn!

Andie :hippy:

looks like its from too much heat.....86 is pushing it.....any chance of bringing down the temp.

I did wonder about 600w being too much in my small space, was given the light though so beggars can't be choosers.

I have another fan I can put in there, gonna have to invest in a decent one I think, the ones I have are just blow heaters but on the cold setting.

Thanks Keeko :hippy:

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Originally Posted by andie666

...I have been watering every 3 days and allowing a good run off, is this too much for the plant? The buds are looking lovely but the leaves are not looking healthy at all, leaf curl & yellow spotting and I was wondering if this is normal for this stage or if it could be due to over-watering or over-heating? I do have a fan on the plants but it doesn't have much oomph!

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There's almost a science to watering, but at least it's not rocket science. Grab an empty bucket the same size as the one your lady is in. Add some drainage rocks and fill with soil. Now lift the pot. When the pot your lady is in feels almost as light as the one you just set-up, it's time to water.
Another method is to stick your finger in up to the second nuckle. If there is damp soil under your finger nails, it's not yet time to water.

By drenching your plants every three days, you are not letting the bottom third of the soil get the fresh air they need, and thusly the roots will rot in the stagnant goo this causes.
Also, the more run-off you allow, the more you spend on nutes, additives, and time spent online asking why the ladies look ill.

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Originally Posted by andie666

I've also noticed how skinny the leaves are looking, as if they're yearning to be size zero :o

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Likely a sativa dominant hybrid. Tiz normal.

I'm in the desert, and speaking from experience, cannabis plants are more forgiving than most folks give 'em credit for. 86 isn't too bad, but a good fan is a real good idea regardless.

Roots a rotting in stagnant goo, noooo!! I definitely don't want that.

I stuck my finger, up to the 2nd knuckle and it's quite wet (why does sound sooo wrong???) Gonna leave to dry out a bit in future me thinks, and as you said rusty I am literally throwing my nutes away!

She now has 2 fans on her and the temp is down to 79, quite ineffective fans but every little helps.

She smells beautiful and is oh so sticky now, guess all I need now is patience....

Cheers for the advice :thumbsup:

:hippy:

Rusty Trichome has the right answer on this one.

and damm UR plant look killer. how did U get her so dam bushy.

cuz sativas love to strech in veg and flower flower cycle.

so yah just let the soil dry out between waterings and plantie should be fine.

she looks nice as hell now. I bet she'll look beautifuler soon.

peace Hydroc.

Not sure how she got so bushy, she was one of a few clones I took from my last attempt, her mother was extremely lanky but grown under cfls, reckon the hps makes alll the difference.

I can already taste the end result, ooo so sweet.

I'll make a new post of my grow log with updated pics every few days then anyone interested can keep up with the progress :)

cheers hydro :thumbsup:

:hippy:

Awesome looking tree you got there :)

Thats under a 600 watter ? ..those buds are going to be huge :)

heat and/or overnute

Quote:

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Originally Posted by andie666

I did wonder about 600w being too much in my small space, was given the light though so beggars can't be choosers.

I have another fan I can put in there, gonna have to invest in a decent one I think, the ones I have are just blow heaters but on the cold setting.

Thanks Keeko :hippy:

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just took a closer look at your pics......your grow cab seems really small for the light, what kind of ventilation are you working with?.....i was hoping to see some intake vents at the bottom of your cab but i dont see any.

remeber, fresh cooler air coming in, hot stale air going out.

I forgot to mention that i don't close the doors of the wardrobe, posted more pics so you can see the full set up. The room that it's all in is in is 4.2 x 4m.

Gotta feeling someone's gonna laught at my set up now:D

Keep finding myself sat in front of Planty admiring her lovingly for ages, zoned out haha!!

:hippy:

The things I notice about your set-up...
A) Everything in your growroom will hold excess heat. (Boxes, plastic stuff...) Especially if blocking airflow.
B) Anything electrically powered will add heat.
C) A tad extra humidity is provided by the grow media, and also transpires from the plant itself.

I believe that a more unobstructed airflow is preferable to all that stuff in front. If you keep the door open, try placing a fan outside the room, (close to the floor) pointing the main focus of the breeze between the light and the top of the plant. (a slight upward angle will help blow the heat upwards, instead of just blasting it against the walls) If necessary, possibly a fan up top blowing hot air out of the room would help, too. If need be, could always place thre humidifier behind the fan.

RT is right about air flow.
The cause of that symptom is a high heat and a low humidity. Bring the heat down to ideally 78'F and the humidity to 30-40% RH, and the edge curl should go away.
The plants look healthy overall. Should be a simple fix.

will adding oxygen plus provide the necessary air if overwatering is the problem?

I'm not rusty, but plants need CO2 in their atmosphere. If you are talking about oxygenating the fertilizer solution, that's not normally done in soil. It's easier to add more holes in the pot, and water less frequently.

thanks for info stinky the ? is if i`ve overwatered and now am letting dry out does adding oxygenplus also help by getting oxygen to soggy root system? i understand making some holes in the container will also air out excessive water

I've never used something like that myself. Maybe someone with more experience will chime in. In general, it shoudl not be necessary; however, it would be interesting to find out if it would at least be beneficial.

i recently read that by cutting a whole 3/4 the way down my grow container would reveal if there was mud from overwatering or dryness from lack of water my trainwrecks were drooping and yellowing of the lower leaves it`s so easy to over react with solutions or worry about the health and do toooo much as a remedy i discovered i wasn`t giving my girls enough water i thoroughly watered and they look much better

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Originally Posted by misterjersey

will adding oxygen plus provide the necessary air if overwatering is the problem?

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Ummm, no. It's not air, it's a liquid. I still have my first and only bottle. I noticed no improvements till I learned how to properly water. You'd think watering is so simple, but I do remember being frustrated early on, too. If you lift the pot, and it almost feels like it's empty, likely should have watered the night before. (lol...does that help...?) Or there's the bakers method... Stick your finger up to the second nuckle, if the dirt under your fingernail is moist, wait.

Anyway, doubtful you want to add a liquid, to solve overwatering. It does provide the oxygen molecule, but so does letting it dry between watering. Without researching, I heard from a friend that has a friend that said it's base is hydrogen peroxide, but I can't vouch for it being fact.

Quote:

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Originally Posted by misterjersey

thanks for info stinky the ? is if i`ve overwatered and now am letting dry out does adding oxygenplus also help by getting oxygen to soggy root system? i understand making some holes in the container will also air out excessive water

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The product's intent is to provide oxygen to the roots, but the suction created within the soil, when adding water does the same thing for free. Adding more Oxygen Plus solution will keep the roots wetter for longer. Do the benefits outweigh the negatives...? I don't risk it. It looked like a great idea on the store shelf, but I've got a whole storage shed filled with crap I really thought I could use, lol.
When plant is ready to be watered, add slowly, (add a pint, wait a minute...add a pint, wait a minute...) and measure how many pints or quarts (or cups if small pot) it takes to start seeing the run-off out of the bottom. Write that number down, and use it for future reference. Do this for a couple of pots, and see if similar results occour. If so, that's a good place to start on quantity to add in the future.

Quote:

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Originally Posted by misterjersey

i recently read that by cutting a whole 3/4 the way down my grow container would reveal if there was mud from overwatering or dryness from lack of water my trainwrecks were drooping and yellowing of the lower leaves it`s so easy to over react with solutions or worry about the health and do toooo much as a remedy i discovered i wasn`t giving my girls enough water i thoroughly watered and they look much better

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Yup, poking holes in sides is fine for larger pots and 5 gallon pails. Does tend to dry-out a day or so quicker, but better a tad too dry, than a tad too rotten.

HTH

p.s. Sorry, guess I had deleted this from my favorites, so didn't get back in a timely manner. My bad. (thanks Stinky) :smokin: