So it looks like I have nute burn and deficiency

[ridgelind]

So, first grow here.

TL;DR: To make a long story short I'm in week 6 of flower, I got symptoms of either a nute deficiency or nute burn, and I dont know which way to go, since I'm at a critical time period of bud development

Vegged for a month. Fimmed once, LST's and supercropped about twice.

Coco with perlite, Canna Coco A+B, 2 liter pots. Mystery bag seed, I think the guy who sold it to me said it was Lemon Something. To be on the safe side i am assuming 9 weeks flower (either its sat or indica dom hybrid) (maybe someone recognizes the strain?)

PH of water/nutes is kept between 5 and 6, closer to the 6 side (got them drops to test). Temp 28 deg C humidity in the 40's. Got a fan blowing across the top canopy.

Now 3 days ago i noticed some leaves turning purplish/dark brown - these were bud leaves, so I flushed. But kept progressing, the purple/brown turned a bleached yellow, so i cut that. Looked like a Boron deficiency, but leaves are just plain yellow now, i cut most of the dead parts to prevent shading below




I also noticed that one of the calyxes on my plant has turned brown and crispy. Da fuq? Couldn't even google that (or take a pic my camera is liek 15 years old)

The fan leaves tips are yellowing/browning, the serrated edges are browning, plus some of the bud leaves are REALLY dark and green - meaning and overabundance of N, so here I think to myself - nute burn.





Theres spotting here and there, some of it like rust spots making me think it wants calcium. One leaf shows a magnesium deficiency.



But looking lower on the plant seems like all the leaves below the top canopy are much brighter, drooping, some of them fall off when touched. So...seems the plant is using its mobile nutrients here to supplement, so makes me think - deficiency. No too worried about these though, cause i heard this is normal - they're not getting much light.



Gotta say that the trichomes started to show about a week ago, but have stalled the past 3 days. Bud growth seems stalled as well. Too early to start flushing IMO.

So whats the best damage control strategy here?

Less nutes - could be ok or stunt growth

Same nutes - could be ok or kill the plant or stunt the growth

More nutes - Seems like overkill, i'm at max dosage, so I'd say definately not.

Like I said its my first grow, so I'm learning a lot here, but also stressing.

 

[ridgelind]

Just a few more pics

Browning of tips



More random spotting



And some more images of the rust spotting/tip burn and tip curl

 

[GreeeeN GRassss]

what medium are you using ? 2L pots is very small.

probably to late to re pot, start to cut back on feed,

how much canna are you feeding it ?

 

[RetroGrow]

2 liter "pots"? That is very small. Probably root bound, and might be a pest problem. I would up pot them, and check the roots for root aphids.

 

[lost in a sea]

yeah more medium, more light and less nutrients probably Nitrogen,, you might find it easier to do soil for a first attempt i think the result would be of a higher quality anyway.. you can use very little soil if you use organic nutrients and promote the soil life and get a fantastic result.

 

[ridgelind]

what medium are you using ? 2L pots is very small.

probably to late to re pot, start to cut back on feed,

how much canna are you feeding it ?

I was mixing 6mL Canna A+B in 1.5 liter bottles, and feeding that. A 1.5 liter bottle would be good for 4 days.

I planted them in a 2L pot because I wanted to keep it short, and my grow room is only 30x30x60. Besides, ive seen people do grows in 2 liter bottles or milk jugs.

Checked for bugs but have none, maybe it is root bound. But just hit week 7 of flower, so not sure whether to repot and stress, or just flush with pH'd water for the next 2 weeks.

Plus, I missed watering it for a day (was away for the weekend) and almost had a heart attack, cause came back and had a droopy little girl (she's fine now, but still stress is stress), so dont want to stress her further. Trich productions is nt where i'd like it to be.

 

[GreeeeN GRassss]

there are other methods to keeping a plant small rather then putting it in a small pot. Low Stress Training or LST as its known, cropping your plants is another ( stem pinching).

so lets get this straight that is 6ml of A and 6ml of B ? if that is the case its way to much. when i was using canna A+B the most id give a big plant in flower was 4ml of each per L.

ye people get amazing results growing in coco with smaller pots using drip system and feeding multiple times per day.

learn from this experience, next time use bigger pots. at the moment im using 7L pots handwatering them and i cant go away for one night because like yours they would be dropping by the time i got back.

flush them with just plain water i never ph my final flush solution. no need to add more chemicals to your smoke. so late in flower you have what you have and you cant do much about it now only start more seeds.

 

[ridgelind]

there are other methods to keeping a plant small rather then putting it in a small pot. Low Stress Training or LST as its known, cropping your plants is another ( stem pinching).

so lets get this straight that is 6ml of A and 6ml of B ? if that is the case its way to much. when i was using canna A+B the most id give a big plant in flower was 4ml of each per L.

ye people get amazing results growing in coco with smaller pots using drip system and feeding multiple times per day.

learn from this experience, next time use bigger pots. at the moment im using 7L pots handwatering them and i cant go away for one night because like yours they would be dropping by the time i got back.

flush them with just plain water i never ph my final flush solution. no need to add more chemicals to your smoke. so late in flower you have what you have and you cant do much about it now only start more seeds.

Thanks for the comments.

Yeah I'd love to grow in a bigger pot, unfortunately, space is precious. My pot right now is 12 cm high, my lights take out about 8 cm, so i got a max clearance of 40 cm to grow my plant. I definitely LST'd as much as I could, and super cropped, but didn't feel comfortable super cropping aggressively in flower, cause wanted her to focus on buds not healing, and you know, once your baby is growing into the lights, she gets burned even if they're CFL's. And there is only so much lateral room you have to LST in a 30x30cm Box

But I have already found a 4 liter pot that is wider than higher, so that should help on the next grow. I am also considering chopping this bucket i have down to size since its got a diameter of 28 cm and would fit perfectly, but I dont have any idea so far on how to provide a plate underneath it to catch the overflow

As far as the amount of feed - I just followed canna coco feed chart, where as the tank size i'd give my water bottle size, and selected heavy feeding which put me at 6. I actually did post about this before, cause i was confused on how to dose the feed when hand watering from a bottle, but didn't get a conclusive answer.

Anyway, the girl is back to 90% of what it was before the water crisis, and i even think some more trichs are showing up. I read somewhere that its not even that bad to stress her out at this stage, since she might produce flowers more heavily in the hopes of still procreating before dying off. But opinions are mixed

I'm pHing the water with citric acid, it literally takes a tiny pinch to get the water right - the water around where i live is HARD its like 8.5 lol. Plus adding some molasses cause i heard that helps with the flavor.

Just hope its not some sativa dominant breed, since i already started to flush on week 9, and she doesn't turn out to be a crazy 12 week breed.

I already got a feminized Mazar seed that i'm going to germinate in a week and a half and have it go in right after i harvest this girl.

 

[Coconutz]

there are other methods to keeping a plant small rather then putting it in a small pot. Low Stress Training or LST as its known, cropping your plants is another ( stem pinching).

so lets get this straight that is 6ml of A and 6ml of B ? if that is the case its way to much. when i was using canna A+B the most id give a big plant in flower was 4ml of each per L.

ye people get amazing results growing in coco with smaller pots using drip system and feeding multiple times per day.

learn from this experience, next time use bigger pots. at the moment im using 7L pots handwatering them and i cant go away for one night because like yours they would be dropping by the time i got back.

flush them with just plain water i never ph my final flush solution. no need to add more chemicals to your smoke. so late in flower you have what you have and you cant do much about it now only start more seeds.

Fuk I hate doing math when Im high. Sorry if Im off here, but...
Isnt 6ml per 1.5L the same as 4ml per L?
Anyway, you can grow soilid coco plants in yogurt cups.
They wont get rootbound as long as you keep them moist.

 

[ridgelind]

Isnt 6ml per 1.5L the same as 4ml per L?
Anyway, you can grow soilid coco plants in yogurt cups.
They wont get rootbound as long as you keep them moist.

Haha you are right!!!

So whats this i hear about growing in yogurt cups

Do tell more

 

[Coconutz]

Ive never used canna, but that sounds like a lot of food.
Whats the EC?
https://www.icmag.com/ic/showthread.php?t=270697
https://www.icmag.com/ic/showthread.php?t=257977
https://www.icmag.com/ic/showthread.php?t=257266

 

[GreeeeN GRassss]

what ever the math its still to much my plants were huge at that rate of feeding. the high ratio of N in canna doesnt help either.

have you any pictures of the over all plant to see what size it is.

lol cool thread growing in yogurt cups ill have to take a look later.

 

[ridgelind]

what ever the math its still to much my plants were huge at that rate of feeding. the high ratio of N in canna doesnt help either.

have you any pictures of the over all plant to see what size it is.

lol cool thread growing in yogurt cups ill have to take a look later.

Dont have a picture on hand but its tiny. Its basically 30x30cm canopy, and its 40 cm tall.

Ive just been doing water for the past 2 days and i noticed that the leaves that were really really dark green are getting lighter colored.

Some of these spots though look like burn although I have about 5 cm to CFL's - temp inside is 28 celcius and got a fan blowing over the top. Plus the hand test says its fine.

Oh well, first grow first learning experience right?

 

[GreeeeN GRassss]

of course it is learning, im growing in coco nearly three years and i still feel like i dont have a clue even though i have had some great grows. around every corner there is another problem another thing to learn

 

[ridgelind]

of course it is learning, im growing in coco nearly three years and i still feel like i dont have a clue even though i have had some great grows. around every corner there is another problem another thing to learn

Sometimes i get the feeling I should stop reading too much Cannabis problem symptoms because then I think I have everything.

I'm now on the stage where I think I have light burn/stress.

Cause my thermoter is showing 32 deg C. Even though I have a fan blowing over the top canopy, and the hand test is fine.

Arrgh

 

[GreeeeN GRassss]

you should have no trouble with cfls, i use them for veg all the time.

ye its so stressful i feel your pain lol

 

[ridgelind]

Just and update...

Damn, i am starting to find seeds in the buds Just noticed some yesterday on the lower buds, tiny tiny tiny seeds in the calyxes.

Searched for nanners but didn't find a single one. I see very bud has these seeds.

This sucks. Big time. From what I understand the stress itself couldn't have formed the seeds, but could have formed a male flower somewhere and caused pollination.

Trichomes are still not developing proper, they're barely frosted. Not sure if I should keep growing another 2 weeks or not.

Tops are foxtailing, although temps there are 28C, so have no clue why - could be cause the dealer said it was lemon something, i looked up lemon strains and super lemon haze is said to foxtail quite a lot.

I\ll give them another look today. Hopefully something is salvageable.

But where my frosties at?