What's Wrong Now?

What’s wrong with this marijuana plant and how can you fix it?  A worried reader asked me to post this.  I sure as heck haven’t a clue.  They said it was indoor but it looks like it was photographed outdoors.

Any suggestions?

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46 comments

  • i`d like to know that one also ???

  • first glance at the pic says overwatering, but that’s really all the info to go on anyway. Dead soil (no nutrients at all in too much light, this plant is on it’s own with plain water in plain dirt) would be a second guess. It looks like there’s at least one healthy plant next to it, so if they’re getting the same treatment, something physical has happened to the roots? Chemicals, animals, bugs, interfering roots from other plants…a veritable plethora of possibilities…

  • first glance at the pic says overwatering, but that’s really all the info to go on anyway. Dead soil (no nutrients at all in too much light, this plant is on it’s own with plain water in plain dirt) would be a second guess. It looks like there’s at least one healthy plant next to it, so if they’re getting the same treatment, something physical has happened to the roots? Chemicals, animals, bugs, interfering roots from other plants…a veritable plethora of possibilities…

  • Uniform chlorosis is normal. Overfert causes the ram’s horning.

  • Uniform chlorosis is normal. Overfert causes the ram’s horning.

  • mr nice is right. fertilizer burn. don’t worry about it as it won’t make any difference in the end.

  • mr nice is right. fertilizer burn. don’t worry about it as it won’t make any difference in the end.

  • I wouldnt suggest fertilizer burn because….assuming the grower is using a single or balanced food (i.e. assuming they know “the very basics”)…no brown edges or tips, yet it affects the whole plant and it’s uniformly yellowed. A single or at least typical store bought food source would literally burn the leaves…there’d be crispiness on the leaf tips or edges for sure. Granted you can’t see the veins on the leaves in the pic…if they’re incinerated then yes, fert burn…but it looks like the veins are clean. If you still want to insist that’s the problem, what element would you say is doing it?

    I bet if you Googled overwatered cannabis, you’ll see similar pics. I guessed so off the bat because of that telltale leaf curl plus the uniform yellowing without burn. The topmost leaves are healthy…the plant is generally okay and wants to do good…just too much dang water around the rootball. Or not enough food so the leaves aren’t greening up and it now can’t keep up with the rate it wants to grow in that light. Or something foreign under the soil. The plants near it look better…it’s an isolated incident.

    Don’t let anybody convince you it’s more than guesswork based on a pic alone. I know Mr. Nice has snubbed overgrow.com as having been a sales forum, but having spent some solid years there looking at uploaded pics, reading problems and diagnostics and bla bla bla…tuning out the forum bullshit, drama and knowitallism that is the human condition…there was a lot to learn. You show that same pic above to 10 people who grow their own superior quality marijuana flawlessly, you’ll still get at least 5 different confident answers as to what’s wrong with those plants.

  • I wouldnt suggest fertilizer burn because….assuming the grower is using a single or balanced food (i.e. assuming they know “the very basics”)…no brown edges or tips, yet it affects the whole plant and it’s uniformly yellowed. A single or at least typical store bought food source would literally burn the leaves…there’d be crispiness on the leaf tips or edges for sure. Granted you can’t see the veins on the leaves in the pic…if they’re incinerated then yes, fert burn…but it looks like the veins are clean. If you still want to insist that’s the problem, what element would you say is doing it?

    I bet if you Googled overwatered cannabis, you’ll see similar pics. I guessed so off the bat because of that telltale leaf curl plus the uniform yellowing without burn. The topmost leaves are healthy…the plant is generally okay and wants to do good…just too much dang water around the rootball. Or not enough food so the leaves aren’t greening up and it now can’t keep up with the rate it wants to grow in that light. Or something foreign under the soil. The plants near it look better…it’s an isolated incident.

    Don’t let anybody convince you it’s more than guesswork based on a pic alone. I know Mr. Nice has snubbed overgrow.com as having been a sales forum, but having spent some solid years there looking at uploaded pics, reading problems and diagnostics and bla bla bla…tuning out the forum bullshit, drama and knowitallism that is the human condition…there was a lot to learn. You show that same pic above to 10 people who grow their own superior quality marijuana flawlessly, you’ll still get at least 5 different confident answers as to what’s wrong with those plants.

  • …also, I’ve seen similar happenings using recycled soil that hasn’t been flushed.

  • …also, I’ve seen similar happenings using recycled soil that hasn’t been flushed.

  • What’s wrong is people are being shot over this. Shot and killed. Shot and left for dead. Shot and hunted through the night. Murdered in cold blood. Shot in the face. And in the back. And sometimes buried all over the hills.

    That’s what’s wrong.

  • What’s wrong is people are being shot over this. Shot and killed. Shot and left for dead. Shot and hunted through the night. Murdered in cold blood. Shot in the face. And in the back. And sometimes buried all over the hills.

    That’s what’s wrong.

  • If you still want to insist that’s the problem, what element would you say is doing it?

    H+-K+-ATPase. Google that.

    Ram’s horning in the first few weeks of flowering is usually high ppm flowering ferts. Not over watering is always good advice but “not enough food” is misleading. Yes the plant has low xylem loading but that “not enough” is a function of availability, not amount. Burning happens when newbies fert more after they see early overfert signs. You don’t wait to see if the leaves turn brown to decide how to correct curl.

    • I googled that. Honestly, that’s a complicated way of looking at a simple problem but I get what you’re saying…99/100 problems are very simple (not taht you didn’t simply describe it…)…and probably 9/10 people overcorrect. I stand by overwatering as a good start because the plant shows the symptoms and I don’t know what they’re feeding it and I don’t see any burn (which I also stand by as a great warning of that). Is this person just dropping the garden hose on this plant and letting it run? How deep is the soil? Is this really inside? Are they really in pots and is the soil always soaked? What kind of fertilizer(s) is being used? This person is asking what’s up based only on a photo, is probably a beginner, and probably isn’t creating their own jungle juice diet for their plants (food = a pretty good abbreviation for discussing all things fertilizer, I think so anyway) If they are jungle juicing their plants with multiple SuperPowerCrystalizerBoosters, fancy grow shop specials, and spotted albino bat guano in TurboBoost Brand soil, and they’re a beginner…it wouldn’t be worth my time to set them straight other than to tell them to Keep It Simple, Stupid…they’re getting advice from either the wrong or too many people. Plants work WITH us, not against us….we fuggitup by overcomplicating things.

      With that…regardless, depending on the environment of the plant above etc…I’d let it chill for awhile, ease up on the water and food…give it about a week and see how it’s feeling compared. Don’t expect the problem to correct itself in one or two days…damaged leaves usually die, so it might start to look worse even though it’s getting better…keep eyes peeled to the new leaves coming in. If they keep coming in healthy, that’s good. If they keep coming in healthy then right away curling and yellowing….use process of elimination to figure it out, don’t overcorrect or you will learn nothing except not to overcorrect next time.

      Let us know what’s up wtih this later! My curiousity has been piqued with this plant. For all we know, their cat might use the base of that plant as it’s litterbox.

      • I hear you on the crazy fert products. The ones I seen where people do dumb with are those PGR products. Folks dose on paclobutrazol or that chlormequat cl or whatever and then keep feeding. The burn from that is weird looking and hard to diagnose without knowing they sprayed some lab product on their plants. In general even if they using GA in veg they should prolly flush out the ferts first as the plants skip hella days right afterwards which magnifies the defs.

        • I could tell you some stories of things I’ve seen with my own two eyes. Who hasn’t seen more than one person look at powdery mildew and say “that’s the THC”…or question the quality of a headnug more frosty than they’ve ever seen, because they think the crystals are mold.

          More confusing than anything to me has been plant disease…especially communicable. It’s a very serious affliction in agriculture…citrus cancer, sudden oak death etc…to think that marijuana cultivation could be immune to its own. Some (ganja) plants just don’t get along with other plants…one will cause the other’s leaves to do strange things, cycle to get screwey, whatever. If it’s a disease, the plant will continue to grow poorly even after it’s seperated from the others, as will any clones and (potentially) seeded offspring. Almost entirely uncurable. But since it’s not talked about, it’s usually diagnosed as nutrient deficiencies or environmental error, and remedied with lots of store bought stuff…to no avail.

          You could talk circles around me on the microbionics of it…not my area of knowledge at all.

          • Cannabis disease passed through generations is rare. PM sure but that’s completely curable. SHMV is very rare… who’s even seen it except in pictures?

            Not really tryna argue about disease, I know weed gets sick from all types of things. Diagnosis is pretty easy though when you’ve seen every messed up thing possible.

            Quats will fix any clone issues. Good practice to sanitize everything that touches plants with quats to avoid having to use them on the plant later.

            Is this crop flushed yet? Needs new pics with no ram’s horning.

            • I wouldn’t read that you’re arguing, good reads…I’m just ramblin’ myself…

              About five years ago people were complaining all over the state about romulan clones carrying disease, I saw the hassle first hand. While the romulans grew fine, symptoms didn’t show on the neighbors until flowering, when the hairs would brown immediately and form dark, hardened clusters that never fully ripened. Once infected, the only option was to throw it out. A couple years ago there a popular kush variety circulating that gave plants that touched it symptoms identical to rust. It would spread over say 25 square feet in a few weeks. Curable through selective cloning…the list goes on..think of how many people drilled their brains out trying to figure out why their crops were failing so bad.

              Diseases and systemic problems are rare, yeah, but considering how rapidly the plant is evolving thanks to humans, and in how many of what kind of crowded unskilled conditions…being distributed by people who don’t know any better and clubs that don’t care (who also hasn’t heard of people ending up with a room full of mildew or bugs because of plants they introduced from a supposedly reliable source…so often I’d almost call it a conspiracy) etc. etc…

              I liken most of what I’ve seen in the grow world to the typical story about the dirty backwoods farmer who doesn’t know a lick about npk yet is growing chronic footballs on sticks while the mad scientist using all kinds of chemical methods and jungle juices gets the same results but with twice the work and cost.

              • Romulan as a strain is prone to mold like no other. The actual soil mixes Mendocino Joe used were the artsy types. He couldn’t have known that the sterile bullshit used today contained no silica content.

                You say NPK and I think that is the major malfunction when it comes to plant knowledge. Regular ass farm dirt has roughly (no pun intended) 100 times more silicates than potassium. This sandy, scratchy stuff was for many years considered non-essential as princess pamper plant could survive without it and have this beloved “good drainage.” We should all know now… bullshit.

                Romulan as a strain isn’t so great anymore. There are higher yielding strains with the same acid garlic taste that lack the mold.

                The kush strain you speak of was Hindu Kush and that was one of the rare instances of the SHMV.

                • as far as npk goes, non-mad scientists trust that they’re at least properly labeled…how much should the beginning gardner know? My advice on fertilizers is to pick a brand and they’re suggested formula and stick with it before confusing things with addatives.

                  I don’t understand what you’re talking about silicates…don’t get me started on a rant about overuse of perilite and such…could you elaborate?

  • If you still want to insist that’s the problem, what element would you say is doing it?

    H+-K+-ATPase. Google that.

    Ram’s horning in the first few weeks of flowering is usually high ppm flowering ferts. Not over watering is always good advice but “not enough food” is misleading. Yes the plant has low xylem loading but that “not enough” is a function of availability, not amount. Burning happens when newbies fert more after they see early overfert signs. You don’t wait to see if the leaves turn brown to decide how to correct curl.

    • I googled that. Honestly, that’s a complicated way of looking at a simple problem but I get what you’re saying…99/100 problems are very simple (not taht you didn’t simply describe it…)…and probably 9/10 people overcorrect. I stand by overwatering as a good start because the plant shows the symptoms and I don’t know what they’re feeding it and I don’t see any burn (which I also stand by as a great warning of that). Is this person just dropping the garden hose on this plant and letting it run? How deep is the soil? Is this really inside? Are they really in pots and is the soil always soaked? What kind of fertilizer(s) is being used? This person is asking what’s up based only on a photo, is probably a beginner, and probably isn’t creating their own jungle juice diet for their plants (food = a pretty good abbreviation for discussing all things fertilizer, I think so anyway) If they are jungle juicing their plants with multiple SuperPowerCrystalizerBoosters, fancy grow shop specials, and spotted albino bat guano in TurboBoost Brand soil, and they’re a beginner…it wouldn’t be worth my time to set them straight other than to tell them to Keep It Simple, Stupid…they’re getting advice from either the wrong or too many people. Plants work WITH us, not against us….we fuggitup by overcomplicating things.

      With that…regardless, depending on the environment of the plant above etc…I’d let it chill for awhile, ease up on the water and food…give it about a week and see how it’s feeling compared. Don’t expect the problem to correct itself in one or two days…damaged leaves usually die, so it might start to look worse even though it’s getting better…keep eyes peeled to the new leaves coming in. If they keep coming in healthy, that’s good. If they keep coming in healthy then right away curling and yellowing….use process of elimination to figure it out, don’t overcorrect or you will learn nothing except not to overcorrect next time.

      Let us know what’s up wtih this later! My curiousity has been piqued with this plant. For all we know, their cat might use the base of that plant as it’s litterbox.

      • I hear you on the crazy fert products. The ones I seen where people do dumb with are those PGR products. Folks dose on paclobutrazol or that chlormequat cl or whatever and then keep feeding. The burn from that is weird looking and hard to diagnose without knowing they sprayed some lab product on their plants. In general even if they using GA in veg they should prolly flush out the ferts first as the plants skip hella days right afterwards which magnifies the defs.

        • I could tell you some stories of things I’ve seen with my own two eyes. Who hasn’t seen more than one person look at powdery mildew and say “that’s the THC”…or question the quality of a headnug more frosty than they’ve ever seen, because they think the crystals are mold.

          More confusing than anything to me has been plant disease…especially communicable. It’s a very serious affliction in agriculture…citrus cancer, sudden oak death etc…to think that marijuana cultivation could be immune to its own. Some (ganja) plants just don’t get along with other plants…one will cause the other’s leaves to do strange things, cycle to get screwey, whatever. If it’s a disease, the plant will continue to grow poorly even after it’s seperated from the others, as will any clones and (potentially) seeded offspring. Almost entirely uncurable. But since it’s not talked about, it’s usually diagnosed as nutrient deficiencies or environmental error, and remedied with lots of store bought stuff…to no avail.

          You could talk circles around me on the microbionics of it…not my area of knowledge at all.

          • Cannabis disease passed through generations is rare. PM sure but that’s completely curable. SHMV is very rare… who’s even seen it except in pictures?

            Not really tryna argue about disease, I know weed gets sick from all types of things. Diagnosis is pretty easy though when you’ve seen every messed up thing possible.

            Quats will fix any clone issues. Good practice to sanitize everything that touches plants with quats to avoid having to use them on the plant later.

            Is this crop flushed yet? Needs new pics with no ram’s horning.

            • I wouldn’t read that you’re arguing, good reads…I’m just ramblin’ myself…

              About five years ago people were complaining all over the state about romulan clones carrying disease, I saw the hassle first hand. While the romulans grew fine, symptoms didn’t show on the neighbors until flowering, when the hairs would brown immediately and form dark, hardened clusters that never fully ripened. Once infected, the only option was to throw it out. A couple years ago there a popular kush variety circulating that gave plants that touched it symptoms identical to rust. It would spread over say 25 square feet in a few weeks. Curable through selective cloning…the list goes on..think of how many people drilled their brains out trying to figure out why their crops were failing so bad.

              Diseases and systemic problems are rare, yeah, but considering how rapidly the plant is evolving thanks to humans, and in how many of what kind of crowded unskilled conditions…being distributed by people who don’t know any better and clubs that don’t care (who also hasn’t heard of people ending up with a room full of mildew or bugs because of plants they introduced from a supposedly reliable source…so often I’d almost call it a conspiracy) etc. etc…

              I liken most of what I’ve seen in the grow world to the typical story about the dirty backwoods farmer who doesn’t know a lick about npk yet is growing chronic footballs on sticks while the mad scientist using all kinds of chemical methods and jungle juices gets the same results but with twice the work and cost.

              • Romulan as a strain is prone to mold like no other. The actual soil mixes Mendocino Joe used were the artsy types. He couldn’t have known that the sterile bullshit used today contained no silica content.

                You say NPK and I think that is the major malfunction when it comes to plant knowledge. Regular ass farm dirt has roughly (no pun intended) 100 times more silicates than potassium. This sandy, scratchy stuff was for many years considered non-essential as princess pamper plant could survive without it and have this beloved “good drainage.” We should all know now… bullshit.

                Romulan as a strain isn’t so great anymore. There are higher yielding strains with the same acid garlic taste that lack the mold.

                The kush strain you speak of was Hindu Kush and that was one of the rare instances of the SHMV.

                • as far as npk goes, non-mad scientists trust that they’re at least properly labeled…how much should the beginning gardner know? My advice on fertilizers is to pick a brand and they’re suggested formula and stick with it before confusing things with addatives.

                  I don’t understand what you’re talking about silicates…don’t get me started on a rant about overuse of perilite and such…could you elaborate?

  • Rose – you nailed it. A native son has murdered a Guatemalan and attempted to do the same to two other ’employees’ (slaves?) of his. I am sickened that the world blithely goes on…as if this is normal. What IF he had found the two men in the night? We are all lost.

  • Rose – you nailed it. A native son has murdered a Guatemalan and attempted to do the same to two other ’employees’ (slaves?) of his. I am sickened that the world blithely goes on…as if this is normal. What IF he had found the two men in the night? We are all lost.

  • Fiance here:

    I am a big fan of the KISS rule too…”Keep it Simple Stupid.” I try.

  • Fiance here:

    I am a big fan of the KISS rule too…”Keep it Simple Stupid.” I try.

  • I don’t understand what you’re talking about silicates…don’t get me started on a rant about overuse of perilite and such…could you elaborate?

    Silicates occur abundantly in regular dirt from rocks and sand. Fabricated soils and mediums tend to contain almost none. Scientists once theorized that silicon was not needed for plants because plants could be grown in medium completely devoid of it. Now that theory has been flipped on its head.

  • I don’t understand what you’re talking about silicates…don’t get me started on a rant about overuse of perilite and such…could you elaborate?

    Silicates occur abundantly in regular dirt from rocks and sand. Fabricated soils and mediums tend to contain almost none. Scientists once theorized that silicon was not needed for plants because plants could be grown in medium completely devoid of it. Now that theory has been flipped on its head.

  • Google:
    Over watered cannabis
    Soil Aeration
    Perlite
    Phythium

    for your answers.

  • Google:
    Over watered cannabis
    Soil Aeration
    Perlite
    Phythium

    for your answers.

  • don’t get me started on a rant about overuse of perilite…

    Indeed, please indulge us with your anti PERLITE rant….I will debate your point of view.

    • (lack of) soil airation probably not the issue. You’ll usually see leaves canoe, not curl downward like that. I’m not against perilite at all, I just think it’s used in unecessary abundance…with me it’d turn into a rant all right…

    • Perilite is very costly and pollutive to make. It’s inventive purpose (and primary use) is within heavy duty industrial machinery, but happens as a marketable byproduct as well. Perilite is more akin to a chemical name than a product or brand. It would be easy to rant “anti” about perilite, especially against anybody who uses it but claims to grow all organic style.

  • my friend sent me this :
    hey man, The problem I was having was low nitrogen. and too much water. But things have greened up again. thanks for you help. Here is pic i took today.

    http://sphotos.ak.fbcdn.net/hphotos-ak-snc4/hs430.snc4/47295_1335968252799_1638889940_767507_186912_n.jpg

  • my friend sent me this :
    hey man, The problem I was having was low nitrogen. and too much water. But things have greened up again. thanks for you help. Here is pic i took today.

    http://sphotos.ak.fbcdn.net/hphotos-ak-snc4/hs430.snc4/47295_1335968252799_1638889940_767507_186912_n.jpg

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