why are my leaves curling like tacos

superstoner1

superstoner1

Well-Known Member
taco means they cant move enough water to compensate for the heat. try to give them some shade and water good.
 
Slipon

Slipon

Well-Known Member
weed need temps between 75F and 85F to do well .. 85F is actualy at the high end .. 80F is more like it .. nght temp schould be 65-75F or so ..

cant realy see them pictures .. what did you use to take em with ? a miniture camara ?

but if it is the very edges at the leaves .. mostly at the top grow .. that curl slightly upwards it is a sign of heat stress ..

do you have em in pots or in the ground ? (would suggest in the ground .. strongly if you have the option to do so ?)

well .. nomather what .. if you have high temps .. try to provide it with some shade at mid day/hottest hrs ...

if in pots .. try to chatch morning and evening sun .. keep em in the shade doing mid day ..

if you plant in the ground .. find a spot wher it get sunn from early morning and untill mid day .. or a place wher it get sun most day but maybe underneed a tree so ther is some shadow .. a windy place might also help ..
 
DeeTee

DeeTee

Well-Known Member
Def heat stroke, do as superstoner says, You could put some kind of netting ( not too fine ) over them so they can get some sun but not too harsh.
 
D

degz

Member
same exact shit happened to my leaves when the temps got too hot. they are turning brown now and bout to fall off .but the new growth looks ok since ive gotten my temps lower
 
DSB65

DSB65

Well-Known Member
[h=1]Solving Marijuana Plan Leaf Curl/Cupping Problems[/h]Plenty of first time and experienced marijuana growers will suffer at some point in their cannabis growing career marijuana plants that begin to show leaf damage.
Often they write emails or post on forums.
“Help, my leaves are cupping and the leaf edges are turning brown!”
or
“My plant's leaf tips are curling down and turning black ....what's wrong?”
Unless another marijuana grower inspects the damage a true assessment might not be possible. It's hard to tell "exactly" what the culprit is. Unfortunately the “solution” the marijuana grower chooses many times is not the right one.
A misdiagnosis only serves to make matters worse by promoting further decline.
The ultimate and correct solution is in the hands of the marijuana grower.
Here are some common problems when marijuana leaves are curling.

  1. Too much marijuana fertilizer
    The most common cause of marijuana leaf cupping aka leaf margin rolling, leaf margin burn, and leaf tip curl/burn is overzealous use of marijuana plant food. In relationship to factors such as marijuana plant vigor and rate of growth. Leaf burn is often the very first sign of too much marijuana fertilizer.
    A hard, crispy feel to the marijuana leaf frequently occurs as well, as opposed to a soft and cool feel of a happy pot leaf. Back off on the amount and/or frequency of using marijuana fertilizer. Too much marijuana fertilizer can also burn the roots, especially the sensitive root tips, which then creates another set of problems. Note - as soil dries, the concentration of the remaining salts rises further exacerbating the problem.
  2. High Heat
    The marijuana plant is losing water via it’s leaves faster than what can be replaced by the root system. The marijuana leaf responds by leaf margin cupping or rolling up or down (most times up) in order to conserve moisture. A good example is reflected by the appearance of broad-bladed turf grass on a hot summer day, high noon, with low soil moisture levels - the leaf blade will roll upward/inward with the grass taking on a dull, greyish-green appearance. Upon sunrise when moisture levels have returned to normal, the leaf blade will be flat. Lower the heat in the marijuana grow-op and concentrate on developing a large robust root system. An efficient and effective root system will go a long way to prevent heat induced pot leaf dessication or marijuana leaf margin curling. One short episode of high heat is enough to permanently disable or destroy leaf tissue and cause a general decline in the leaves affected, which often occurs to leaves found at the top of the cannabis plant. The damaged pot leaf (usually) does not fully recover, no matter what you do. Bummer in the summer. One can only look to new growth for indications that the problem has been corrected.
  3. Too much light
    Yes, it’s true, you can give your marijuana plant too much light. Cannabis does not receive full sun from sunrise to sunset in its natural state. It is shaded or given reduced light levels because of adjacent plant material, cloudy conditions, rain, dust, twilight periods in the morning and late afternoon, and light intensity changes caused by a change in the seasons. Too much light mainly serves to bleach out and destroy chlorophyll as opposed to causing marijuana leaf cupping, but it often goes hand-in-hand with high heat for indoor marijuana growers. Turn down the time when the lights on in your marijuana grow room. If you're using a 24 hr cycle, turn it down to 20 hrs. Those on 18 - 6 marijuana growth cycle can turn their lights down two or three hours. Too much light can have many adverse effects on marijuana plants. Concentrate on developing/maintaining an efficient and robust root system.
  4. Over Watering
    For marijuana growers using soil, this practice only serves to weaken the root system by depriving the roots of proper gas exchange. The marijuana plants roots are not getting enough oxygen which creates an anerobic condition inducing root rot and root decline with the end result showing up as leaf stress, stunted growth, and in severe cases, death. Over watering creates a perfect environment for damp-off disease, at, or below the soil line. Many times marijuana growers believe their cannabis plant is not getting enough marijuana fertilizers (which it can't under such adverse conditions), so they add more marijuana fertilizers. Making the problem worst. Not better. Often problem 1 and 4 go together. Too much marijuana fertilizer combined with too much water. Creating plenty of marijuana plant problems.
  5. Not Enough Water
    Not only is the marijuana plant now stressed due to a low supply of adequate moisture, but carbohydrate production has been greatly compromised (screwed up). Step up the watering frequency, and if need be, organic marijuana growers may need to water from the bottom up until moisture levels reach a norm throughout the medium. One of the best methods in determining whether a marijuana plant requires watering is lifting the pots. The pots should be light to lift before a water session. After watering the marijuana plants lift the pots to get an understanding how heavy they've become fully watered. If the pot feels light to the lift - it’s time to water. Don’t wait until the soil pulls away from the side of the pot before watering. And of course, leach, once in a while to get rid of excess salts. These are the five most common problems marijuana growers encounter when growing cannabis. Correcting the problems early will save the marijuana plants, but may reduce overall yield. With practice and experience these problems are easily overcome which will then enable the marijuana grower to produce fantastic marijuana plants. With heavy yields.

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Unbreakable

Unbreakable

Member
Hello there-Rookie Here ;-)
I have 22 XXX-Og's, vegging wonderfully in 65gallon SmartPots, on a concrete patio in me back yard. They are in the sun 9-10hrs per/day but; doesn't get above 85*. HOWEVER, I woke up today and noticed that the leaves, well; they've all gone and "taco'd" on me... =(
I have read through MILES of online opinions; here's what the growing community has to say:
1.) TOO HOT!
2.) TOO MUCH H2O!-->Although I was made to believe it was fairly impossible to 'over'-water in SmartPots?
3.) NOT ENOUGH H2O-->I've been watering every-'other' day; as when I stick me digit into the soil, almost up to me 2nd knuckle; it's still a lil' moist/damp; which is all I was told to look for.
4.) NOOT BURN?
5.) NOOT-deficiency?
6.) Calmg deficiency?
-->FLUSH/LEACH?
-->Epson Salts?
Whaduh am supposed to do?
They look and are growing very nicely; except for this Taco effect.
Any suggestions?
 
Unbreakable

Unbreakable

Member
Hello mrblu and thank you so very much, for your prompt response! :clap: -->As you may imagine, (this being my 1st 'ever' grow); when I awoke to a "field of tacos" o_O, (which were BEAUTIFUL, VIBRANT Ladies when I went to sleep last night); my jaw melted to the ground and was forced into 911-panic mode...

Although I cannot shove our lil planet, any further away from the Sun, I did however, go with your second piece of advice, which is what my "gut" council'd me to do. So after sifting through miles and miiiiiiiiiles of thread I found today in various grow forums-(pertaining to "Taco Gardens"; I just 'flooded' my girls with H20; for 3minutes a piece/'til a fairly decent lil' tidal pool of runoff began gathering and then running down and off my patio.
Tomorrow when I awake, they'll have fully recovered and their leaves will be large, wide open and healthy again. How do I know? I don't? however; I expect success until otherwise notified. Worrying about everything'll give ya stroke eh! ;)

Thanks again mrblu!
-Train Hard/Rest Deep/Eat 'Clean'-->Be Well...

-Unbreakable 'J
 
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