Do these looking ok for 3 weeks 5 days off flower? (First Grow)

[Logan Burke]

At this stage in flowering, Cal-mag is almost as likely to trigger an N toxic reaction because of the Nitrogen. Yes you're right on with the packs, in a perfect world, you wouldn't add moisture packs until your humidity inside the jar is at about 60%,(1 or 2 weeks after you jar them). You can pick up cheap analog hygrometers at almost any pet store and throw them in your jars so that you're not guaging it by the feel so much. But you've got it pretty dead on if you do it the way you just mentioned You should turn out with some incredible bud, you've done your homework and it's so close to paying off! As far as flush goes, it really is something to experiment with a little. I've never tried products made for the end flush, but I would imagine that unless you've been going pretty heavy on fertilizer, you shouldn't even have that much salt build up...not if you've been giving nutes as you've said. So you not giving too much nutes will help you out a ton in regards to how long to flush for it to be effective. Flushing is only about leaching the nutrients out of the roots....once heavy metals and etc get inside the bud mass, it's near impossible to remove them...they're there to stay.

*EDIT* Steve, I'm not seeing anything seriously wrong with your plants man. I mean. I saw that very mild nute burn, but at this stage in your plants life, just keep doing what you're doing, it is clearly working with those beasts. At this stage, I also almost always have to reduce my nutrients by about 1/3 or 1/2, and I'm almost willing to bet that this is in some way related to the mild nute burning and really light yellowing (or maybe that was just light reflecting badly). It always makes my canopy leaves yellow, then get necrotic spots like a cal-mag deficiency, then the whole leaf would turn crunchy....if this starts to happen, more than likely it's because you're overfeeding or haven't reduced your feed for late bloom. To an untrained eye it looks like cal-mag def.

 

[Logan Burke]

Cheers for your advice buddy some good stuff you have told me there, The reason why I didn't use bloom nutes was because i have a few pals who grow and they just use canna a+b all the way through their grow and get some good results with it to (I've seen and smoked their weed) Like you say you learn as you go, What im going to do is run the full canna range next time and print off the chart (per 2litre) I didn't realise you could do that on their website but anyway what I'm going to do is print the grow chart off on my next run and do everything properly, I just hope i can get these 2 lady's over the line first they have around 3 weeks left by my calculations, I was going to upload a few pics tonight but I got held up at work I've just got in its half 2 in the morning and lights went off for 12 lol I'll upload some in the morning

Oh I think you'll get these over the finish line just fine!! A healthy plant can withstand a lot of abuse lol. As far as nutes go, if it's working for you then keep with it man, the most simple solution is oftenly the right one! The toughest part of growing is that there are few things that have a set standard...what works for me probably won't work for you, and vice versa. I've grown to love the line of nutes called Floranova by General Hydroponis....it's two bottles, one for grow, one for bloom. No mixing a A bottle with a B bottle or any of the stuff, really fool-proof nutrients! Not trying to convert you or anything, just sharing what works for me I rarely need to add anything else to this base, and keeps a stable PH unlike some others (*Cough Cough* Advanced Nutrients PH Perfect *Cough Cough*). About forgot to mention, yeah your plants have a bare minimum of three weeks to go, and maybe more. A cheap 30x digital microscope will save you so much fretting over when to harvest, jewelers loupes will work but just not quite as effectively. Your beautiful babies still have at least one more stage of 'swelling' to go through, so no worries! I'm rambling again lol, I look forward to the new pics though bud have a good one!

 

[Smithy1]

6.) Root Problems, Root Rot or Bad Watering Practices

Chronic overwatering can sometimes cause unusual deficiencies even if the pH is spot on, like this plant grown in muddy soil. The biggest sign that these symptoms are caused by overwatering and not pH (or something else) is that the plant is always droopy. Another example of a deficiency that's actually caused by overwatering

7) Bugs or Mold

If your plant gets bugs, it can cause lots of symptoms including dry, crispy leaves! . Dry, crispy, yellow leaves caused by a fungus gnat infestation

8.) Other Possible Causes

If you accidentally spill full-strength nutrient filled water on some of your leaves and don't wipe it off, it's possible that they will get burned from this as well, either from the nutrients or the lights being magnified by the water.


Another thing to think about is, "Did anything different happen right before you started seeing problems?" Was there a hot day, a new supplement, or some other change? Sometimes this might give you a hint to the cause!


Did Anything Different or Unusual Happen Recently?

Hey smileybizz, Cheers for your advice there is a website where you put the leaves symptoms in I think its ilovegrowingmarjuana I might be wrong but i think it may off Been a little bit off ovetfeeding I was giving them 5Ml off A and 5ml off b at one point per 2 litre off water and after I fed them once they started going a bit yellow and crumbling, I have also looked at the possibility of pests being in my grow room but I take my plants out and clean my grow cupboard every week with disinfectant so I don't think that's the problem, Anyway after i noticed the leaves going yellow I immediately half my dose off A+B so it was on 2.5ml off each and I didn't give it any for a week and immediately flushed my plants for a week straight I fed them pure water until it drained into the circular thing I have in the bottom them emptied it, Anyway I fed th water 3 times that week until it drained I didn't want to feed it water to much in case I looked it and killed it or something but I still think it hasn't solved the problem So I'm stuck lol I think the damage has been done to be honest I just hope I can get them over the line with some decent sizable buds to smoke. Again thank you for advice.

 

[Steve7878]

At this stage in flowering, Cal-mag is almost as likely to trigger an N toxic reaction because of the Nitrogen. Yes you're right on with the packs, in a perfect world, you wouldn't add moisture packs until your humidity inside the jar is at about 60%,(1 or 2 weeks after you jar them). You can pick up cheap analog hygrometers at almost any pet store and throw them in your jars so that you're not guaging it by the feel so much. But you've got it pretty dead on if you do it the way you just mentioned You should turn out with some incredible bud, you've done your homework and it's so close to paying off! As far as flush goes, it really is something to experiment with a little. I've never tried products made for the end flush, but I would imagine that unless you've been going pretty heavy on fertilizer, you shouldn't even have that much salt build up...not if you've been giving nutes as you've said. So you not giving too much nutes will help you out a ton in regards to how long to flush for it to be effective. Flushing is only about leaching the nutrients out of the roots....once heavy metals and etc get inside the bud mass, it's near impossible to remove them...they're there to stay.

*EDIT* Steve, I'm not seeing anything seriously wrong with your plants man. I mean. I saw that very mild nute burn, but at this stage in your plants life, just keep doing what you're doing, it is clearly working with those beasts. At this stage, I also almost always have to reduce my nutrients by about 1/3 or 1/2, and I'm almost willing to bet that this is in some way related to the mild nute burning and really light yellowing (or maybe that was just light reflecting badly). It always makes my canopy leaves yellow, then get necrotic spots like a cal-mag deficiency, then the whole leaf would turn crunchy....if this starts to happen, more than likely it's because you're overfeeding or haven't reduced your feed for late bloom. To an untrained eye it looks like cal-mag def.

Are you referring to my plants? No there isn't any nute burn on them. Maybe your seeing the hps light that gives a yellow tint. I'm pretty obsessive about checking for any problems on the plants lol. Sorry if the lights on gave you that impression I guess it would of been better to take the lights off but it's kind of an pain to do that since they're on timers.

 

[Steve7878]

Hey smileybizz, Cheers for your advice there is a website where you put the leaves symptoms in I think its ilovegrowingmarjuana I might be wrong but i think it may off Been a little bit off ovetfeeding I was giving them 5Ml off A and 5ml off b at one point per 2 litre off water and after I fed them once they started going a bit yellow and crumbling, I have also looked at the possibility of pests being in my grow room but I take my plants out and clean my grow cupboard every week with disinfectant so I don't think that's the problem, Anyway after i noticed the leaves going yellow I immediately half my dose off A+B so it was on 2.5ml off each and I didn't give it any for a week and immediately flushed my plants for a week straight I fed them pure water until it drained into the circular thing I have in the bottom them emptied it, Anyway I fed th water 3 times that week until it drained I didn't want to feed it water to much in case I looked it and killed it or something but I still think it hasn't solved the problem So I'm stuck lol I think the damage has been done to be honest I just hope I can get them over the line with some decent sizable buds to smoke. Again thank you for advice.

I dont use cal mag at all. Never had a mag problem with my water. I do use botanicare sweet grape though which is kind of the same as giving them molasses every other watering. I purify my tap water with a big berkey carbon filters and they seem to love it. I dont ph my water either since it's about 6.8 everytime.

 

[Smithy1]

Oh I think you'll get these over the finish line just fine!! A healthy plant can withstand a lot of abuse lol. As far as nutes go, if it's working for you then keep with it man, the most simple solution is oftenly the right one! The toughest part of growing is that there are few things that have a set standard...what works for me probably won't work for you, and vice versa. I've grown to love the line of nutes called Floranova by General Hydroponis....it's two bottles, one for grow, one for bloom. No mixing a A bottle with a B bottle or any of the stuff, really fool-proof nutrients! Not trying to convert you or anything, just sharing what works for me I rarely need to add anything else to this base, and keeps a stable PH unlike some others (*Cough Cough* Advanced Nutrients PH Perfect *Cough Cough*). About forgot to mention, yeah your plants have a bare minimum of three weeks to go, and maybe more. A cheap 30x digital microscope will save you so much fretting over when to harvest, jewelers loupes will work but just not quite as effectively. Your beautiful babies still have at least one more stage of 'swelling' to go through, so no worries! I'm rambling again lol, I look forward to the new pics though bud have a good one!

Hey Logan Burke, I hope I get them over the finishing line I think this grow has just been a learning curve for me to be honest, Yes your right a place t can withstand a lot off abuse I choose northern lights because I read it is a "robust" strain and can handle mistakes and is good for beginners hence why I choose it. Yes you're right what works for you might not work for me but still appreciate your advice like I said I was a bit sceptical with posting things and talking about growing openly but it has helped massively with my growing, I was surfing this forum for around 3-4 months before actually signing up, Plus i write things down in my notebook that gets left in my grow room like advice wise i get off people on here and on the net, Is that weird lol? I just find it helpfull because I'm not the sharpest tool in the toolbox specially after a smoke or 2 lol, I will look Into them nutrients you have mentioned to me am I right is saying you can get soil that has all the nutes in and you just have to water the soil every few days? Yeah I've looked into buying a jewellers loop on Amazon ill buy one over the weekend and start to check the trichomes with it, So overall can I clarify I have done okay considering its my first grow? Just you seem to me like a experienced grow who know your stuff so I'd rather ask lol, Cheers for the reply buddy, Also did you see the new pics I posted this morning? You can see on a few pics where the leaves are yellowing, I don't know if you where referring to them pics when you mentioned my pictures lol

 

[Smithy1]

I dont use cal mag at all. Never had a mag problem with my water. I do use botanicare sweet grape though which is kind of the same as giving them molasses every other watering. I purify my tap water with a big berkey carbon filters and they seem to love it. I dont ph my water either since it's about 6.8 everytime.

That's something I've never really bothered with to be honest a PH meter for my water, I've heard loads off people go on about it but I mentioned it to my buddy's who i know that grow and they said I wouldn't worry about things like that as long as your plants look healthy to the eye then they are fine.

 

[Steve7878]

That's something I've never really bothered with to be honest a PH meter for my water, I've heard loads off people go on about it but I mentioned it to my buddy's who know that grow and they said I wouldn't worry about things like that as long as your plants look healthy to the eye then they are fine.

Ya that's really for hydroponics, with that you definitely want to ph the water or they die like instantly lol. I'm using fox farms ocean forest soil right now and honestly they went gangbusters right from the start with it. FF ocean forest has organic nutes in it already so you can go really light on nutes. I didn't even start giving nutes until the 4th week of growth. FF is a tried and true soil for cannabis. If your going to go with soil next round in would definitely go with that. I got it off of amazon for like 30 bucks for 11.2 gallons.

 

[Logan Burke]

Are you referring to my plants? No there isn't any nute burn on them. Maybe your seeing the hps light that gives a yellow tint. I'm pretty obsessive about checking for any problems on the plants lol. Sorry if the lights on gave you that impression I guess it would of been better to take the lights off but it's kind of an pain to do that since they're on timers.

Yes cal-mag should never be used as a 'preventative' measure, only as a reaction, as both of you have pointed out it's not all that commonly needed for soil growing and is still not needed all that much in hydro. It is easily one of the most commonly over-used nutrients I've ever seen. And I was just referring to Smokey's post saying it looked like a cal-mag deficiency, just saying that the only thing I see is the brown tips of the leaves, but it's nothing to worry about and by no means indicates anything is wrong, just a little too much ferts, but I could've been seeing that wrong sorry Steve, my bad!! But back on point...no, there is definitely no need for calmag products, or at least for either of these situations...it would more likely do your plant harm than help it. I, too, just started using Botanicare Sweet Raw (The unflavored version), while idk how much it helped the aroma, I do know that it contains an extra kick of sugars and even a little Magnesium to boot Fox Farm is definitely the golden standard of soil from what I've seen! Back when I grew soil I used Ocean Forest with 1/4th - 1/8th Happy Frog and a little Dolomite Lime...does wonders! And rarely needs ferts until mid bloom as well.

 

[Smithy1]

Ya that's really for hydroponics, with that you definitely want to ph the water or they die like instantly lol. I'm using fox farms ocean forest soil right now and honestly they went gangbusters right from the start with it. FF ocean forest has organic nutes in it already so you can go really light on nutes. I didn't even start giving nutes until the 4th week of growth. FF is a tried and true soil for cannabis. If your going to go with soil next round in would definitely go with that. I got it off of amazon for like 30 bucks for 11.2 gallons.

Not bad that like buddy but I've already started buying the additives for my next run all I need is the tent now which is £1995.95 it comes with everything a new light a carbon filter, I haven't got a bad grow room at the minute but I would prefer a tent upstairs where it's out the way off things, My cupboard is currently downstairs where my lady's are.

 

[Steve7878]

Not bad that like buddy but I've already started buying the additives for my next run all I need is the tent now which is £1995.95 it comes with everything a new light a carbon filter, I haven't got a bad grow room at the minute but I would prefer a tent upstairs where it's out the way off things, My cupboard is currently downstairs where my lady's are.

Just be careful with the height if your plants in veg. I made the mistake of begging them too long and I ran out of room so I converted my room into a growroom, it worked out in the end though but you may not have that option. When you factor in the light, the pots, etc I wouldnt veg past 12 inches or so because of the strech in flowering. Just be careful.

 

[Steve7878]

Not bad that like buddy but I've already started buying the additives for my next run all I need is the tent now which is £1995.95 it comes with everything a new light a carbon filter, I haven't got a bad grow room at the minute but I would prefer a tent upstairs where it's out the way off things, My cupboard is currently downstairs where my lady's are.

Just be careful with the height of your plants in veg. I made the mistake of vegging them too long and I ran out of room so I converted my room into a growroom, it worked out in the end though but you may not have that option. When you factor in the light, the pots, etc I wouldnt veg past 12 inches or so because of the strech in flowering. Just be careful.

 

[Steve7878]

At this stage in flowering, Cal-mag is almost as likely to trigger an N toxic reaction because of the Nitrogen. Yes you're right on with the packs, in a perfect world, you wouldn't add moisture packs until your humidity inside the jar is at about 60%,(1 or 2 weeks after you jar them). You can pick up cheap analog hygrometers at almost any pet store and throw them in your jars so that you're not guaging it by the feel so much. But you've got it pretty dead on if you do it the way you just mentioned You should turn out with some incredible bud, you've done your homework and it's so close to paying off! As far as flush goes, it really is something to experiment with a little. I've never tried products made for the end flush, but I would imagine that unless you've been going pretty heavy on fertilizer, you shouldn't even have that much salt build up...not if you've been giving nutes as you've said. So you not giving too much nutes will help you out a ton in regards to how long to flush for it to be effective. Flushing is only about leaching the nutrients out of the roots....once heavy metals and etc get inside the bud mass, it's near impossible to remove them...they're there to stay.

*EDIT* Steve, I'm not seeing anything seriously wrong with your plants man. I mean. I saw that very mild nute burn, but at this stage in your plants life, just keep doing what you're doing, it is clearly working with those beasts. At this stage, I also almost always have to reduce my nutrients by about 1/3 or 1/2, and I'm almost willing to bet that this is in some way related to the mild nute burning and really light yellowing (or maybe that was just light reflecting badly). It always makes my canopy leaves yellow, then get necrotic spots like a cal-mag deficiency, then the whole leaf would turn crunchy....if this starts to happen, more than likely it's because you're overfeeding or haven't reduced your feed for late bloom. To an untrained eye it looks like cal-mag def.

Hey Logan, ok now I'm having some yellowing leaves on the top leaves, the leaves also seem to be curling down just slightly, they use to be totally perked up. I'm only giving them half the dose of all nutes like usually so nothing has changed.

Also it's only affecting the middle plants closest to the lights. From the highest cola the lights are 21 inches away. The rest of the canopy is a healthy green color. They are all the same strain and get exactly the same amount of nutrients. Is this normal? I dont think it is. Im also still giving them grow big so they get some nitrogen but only 1 teaspoon, half the dose. I also give them botanicare grape flavor and that has mag in it.

It's strange that it's only affecting the middle plants, what could cause this? Temps are really good at about 72-76f during lights on and 61-65f lights out. RH is at 45-55. I would really appreciate any input you could give me, I included some pics for you to see, thanks. The last pic shows the color of the rest of the plants that are not yellowing. Also keep in mind that the hps lights are kind of giving a little yellowing color to the pics. This last pics is a close up of the rest of the plants that are not directly under the lights and are not yellowing.
Here is a pic of the yellowing not under the lights so you can see it in natural light.

 

[Logan Burke]

Well, it being the plants that are seemingly getting the most intense light, it leads me to believe that they need more bloom nutrients, as the leaves that are producing the most energy are the ones yellowing. Do you have a thermometer that you could hang at the canopy level to check the temps? The leaves in that very last pic are really dark green, which can be a sign of nitrogen toxicity, if you are giving them their bloom phase nutrients than there should be no need for the grow nutes...I'd totally cut them out, especially at this stage, N toxicity can really hurt yields. With those leaves not getting dry and crunchy, I'm really leaning towards not having too much Nitrogen and not enough PK. I could be totally wrong here, but that's just my take. How long have you had them on this dose of nutrients?...Has it been a while since you've increased their bloom nutrients? I'd start there, maybe increase the bloom nutrients by about 15-25% and see if they perk up. The leaves might not recover, however, the new growth will be green and normal again, and that's how you'll know you fixed the problem We'll figure it out! You're almost to the finish line!

 

[Steve7878]

Well, it being the plants that are seemingly getting the most intense light, it leads me to believe that they need more bloom nutrients, as the leaves that are producing the most energy are the ones yellowing. Do you have a thermometer that you could hang at the canopy level to check the temps? The leaves in that very last pic are really dark green, which can be a sign of nitrogen toxicity, if you are giving them their bloom phase nutrients than there should be no need for the grow nutes...I'd totally cut them out, especially at this stage, N toxicity can really hurt yields. With those leaves not getting dry and crunchy, I'm really leaning towards not having too much Nitrogen and not enough PK. I could be totally wrong here, but that's just my take. How long have you had them on this dose of nutrients?...Has it been a while since you've increased their bloom nutrients? I'd start there, maybe increase the bloom nutrients by about 15-25% and see if they perk up. The leaves might not recover, however, the new growth will be green and normal again, and that's how you'll know you fixed the problem We'll figure it out! You're almost to the finish line!

Thanks, I really appreciate your input. Ya those really dark leaves happened after I gave them a full dose of botanicare grape flavor so I'm going to lower to 5ml from 8ml. I'm now at the start of the 5th week so maybe 4 weeks left or so.

The last 2 feedings I gave them only 1 teaspoon of big bloom, the normal dose is 3 teaspoons. I also gave them 1 teaspoon of tiger bloom, the normal dose is 2 teaspoons. I also give them 1 teaspoon of grow big and the normal dose is 1 teaspoon.

I think your right, since its only the ones with the most light the leaves are putting out more energy for the buds causing them to have a deficiency of ok, that makes sense. I will try giving them higher levels of the bloom nutes, maybe 1 teaspoon more if each bloom nute for just those plants. What about the slight curling of the leaves that's also seems to be just affecting the plants directly under the lights? Would that be the same reason?

 

[Steve7878]

I have an infrared laser temp gun to check the leaf temperature and they range from 72- 78f and I check several times a day. I do have a hygrometer but it's not hanging and it's in the mid 70s during light and low to mid 60s lights off.

 

[Logan Burke]

Sounds like you've got a game plan! That's really weird that the dark green happened after the Raw Grape, since it only has Mag. Do the instructions call for you to use the Grow Big in combination with the Bloom? I've never used Fox Farm before, but if it says to use it during flower then stick to what they're saying, and just as you said, add a bit more of something high in P and K like the Big Bloom or Tiger Bloom. As far as the leaf curl goes...it could be a few things, it's the reason I'm curious about what your canopy temps are. But either way, I'm sure it's related to the leaves not having the proper amount of nutrients. Are the stems weak-ish?...I just now saw your second post there, but that humidity can't be helping! Leaves release excess moisture like a wick, wicking it out into the air. And, just like when we get hot in humid weather, when it's that humid the plant can't properly wick out that moisture and it kind of gets trapped. I'm betting that the problem is a combo of too high of humidty and perhaps needing a little boost of phosphorous and potassium. This also makes since with the leaves getting the most light being the ones that need to transpire more, causing them to yellow first. Do you have a dehumidifier?

 

[Steve7878]

Sounds like you've got a game plan! That's really weird that the dark green happened after the Raw Grape, since it only has Mag. Do the instructions call for you to use the Grow Big in combination with the Bloom? I've never used Fox Farm before, but if it says to use it during flower then stick to what they're saying, and just as you said, add a bit more of something high in P and K like the Big Bloom or Tiger Bloom. As far as the leaf curl goes...it could be a few things, it's the reason I'm curious about what your canopy temps are. But either way, I'm sure it's related to the leaves not having the proper amount of nutrients. Are the stems weak-ish?...I just now saw your second post there, but that humidity can't be helping! Leaves release excess moisture like a wick, wicking it out into the air. And, just like when we get hot in humid weather, when it's that humid the plant can't properly wick out that moisture and it kind of gets trapped. I'm betting that the problem is a combo of too high of humidty and perhaps needing a little boost of phosphorous and potassium. This also makes since with the leaves getting the most light being the ones that need to transpire more, causing them to yellow first. Do you have a dehumidifier?

Oh ya I always use a dehumidifier, I thought 45-55 RH is good? I looked it up and for gdp 50% RH is perfect.

Yes fox farm feeding schedule calls for 2 teaspoons of grow big throughout the flower stage but I only give them 1 teaspoon.

No as far as I can tell the stems are not weak but they are also being supported by a scrog net.

 

[Steve7878]

Sounds like you've got a game plan! That's really weird that the dark green happened after the Raw Grape, since it only has Mag. Do the instructions call for you to use the Grow Big in combination with the Bloom? I've never used Fox Farm before, but if it says to use it during flower then stick to what they're saying, and just as you said, add a bit more of something high in P and K like the Big Bloom or Tiger Bloom. As far as the leaf curl goes...it could be a few things, it's the reason I'm curious about what your canopy temps are. But either way, I'm sure it's related to the leaves not having the proper amount of nutrients. Are the stems weak-ish?...I just now saw your second post there, but that humidity can't be helping! Leaves release excess moisture like a wick, wicking it out into the air. And, just like when we get hot in humid weather, when it's that humid the plant can't properly wick out that moisture and it kind of gets trapped. I'm betting that the problem is a combo of too high of humidty and perhaps needing a little boost of phosphorous and potassium. This also makes since with the leaves getting the most light being the ones that need to transpire more, causing them to yellow first. Do you have a dehumidifier?

Oh I think you were looking at my temps and thought I was referring to RH. Temps are 72-77f lights on and 62-65f lights off.

RH is always between 45-55. Juat to clear that up.

 

[Logan Burke]

Ohhhhh ok nevermind haha my apologies, yeah 45-55 should be just fine! Keep in mind that if you can get it even lower, say 35%, your plants will transpire faster, and uptake water even more quickly, which will make them process their nutrients and grow faster Anyways, enough random trivia haha. And ah I see what you mean with the Grow Big now, I was wrong to suggest cutting that out! I'd just add a little more of the Tiger Bloom to your feedings than usual and see if your plants respond to that well. I'm sorry man I wish I had better advice for ya, I can't help but get the feeling that I'm missing something in this situation.