Let's grow Super Silver Haze

pleased420 said:
Thanks for the quick reply @longball ! I watered the plants on saturday, so I will check this afternoon if I can get a little runoff without overwatering my plants. Never checked the PH until now... Especially not the PH of my soil... But I will try to test what comes in and what goes out and report here as soon as possible!
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I'm with @longball in his recommendation.
It looks like a pH problem from my vantage point.
Hope you can get it sorted.
TF
 
Hello pleased420! :)

We don't have a 'No Start Trouble Shooting Tree' for plant problems here, that would be awesome, right? :) When you are a newer grower with inexperience, PH is really a good place to learn and start. Most likely the first question when you are looking for help is 'what is your PH'? And for good reason. Yellowing leaves may be caused by many things, most likely too many or too few nutrients. You can buy all the nutrients in the world and throw them on the plant but if you are having a PH nutrient lockout, all the nutrients in the world won't help. Only a simple PH change will. If PH are great everywhere, we move onto the next step. Just like any good trouble-shooting flowchart would do. So far, this is all I've learned about growing, hopefully other forum members will chip in after you post PH numbers.

Fun Fact #1: According to the Laws of Physics and Chemistry, it is impossible to over water a MJ plant or hydrophonics would not be possible. They are soaked in water their entire life. Like swamps in real life.
Fun Fact #2: It is very possible to over water the medium a plant is in(soil, coco.etc,.) And kill the plant. Why is this?

Longball
 
longball said:
Hello pleased420! :)

We don't have a 'No Start Trouble Shooting Tree' for plant problems here, that would be awesome, right? :) When you are a newer grower with inexperience, PH is really a good place to learn and start. Most likely the first question when you are looking for help is 'what is your PH'? And for good reason. Yellowing leaves may be caused by many things, most likely too many or too few nutrients. You can buy all the nutrients in the world and throw them on the plant but if you are having a PH nutrient lockout, all the nutrients in the world won't help. Only a simple PH change will. If PH are great everywhere, we move onto the next step. Just like any good trouble-shooting flowchart would do. So far, this is all I've learned about growing, hopefully other forum members will chip in after you post PH numbers.

Fun Fact #1: According to the Laws of Physics and Chemistry, it is impossible to over water a MJ plant or hydrophonics would not be possible. They are soaked in water their entire life. Like swamps in real life.
Fun Fact #2: It is very possible to over water the medium a plant is in(soil, coco.etc,.) And kill the plant. Why is this?

Longball
Click to expand...
Hey @longball.
An answer to fun fact 2 is oxygen. If the medium is too wet for too long the roots/plant will suffocate, and/or then the weakened/stressed plant will come under attack from what ever is around. Sodden roots equal - damping of disease, usually first.
I’m with you though on starting with pH and moving from there.

Cheers
Fish
 
Thanks so much @Fish! :) That is absolutely the correct answer backed by the best science we have! I was taking too much CBD medication and Bourbon to type all that! You rule! :)
Hydrophonics with bubbling pumps and circulating water is continually creating Oxygen. Roots mainly care about Oxygen and nutrients. In soil, etc, the Oxygen is used up almost immediately due to no water flow or new Oxygen. If you solve the problem with Oxygen and nutrients, soil is great. Soil is all I use!
Longball
 
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longball said:
… You can buy all the nutrients in the world and throw them on the plant but if you are having a PH nutrient lockout, all the nutrients in the world won't help…
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As far as nutrients go, consider Von Liebig’s Law of the Minimum; “plant growth is limited by the least abundant mineral, no matter how abundant the other minerals happen to be.” pH plays an important role here in maximizing nutrient availability.

mu
 
often you get air trapped in the soil. when plants are still in small containers like this, i dunk them under water once in a while, so that all the stale air gets pushed out, and every part of the soil is remoisturized and therefore available for the roots. dont hold them under for much more than 5 or 10 seconds and let them drain completely after. when you grow organically, measuring ph isnt very important i think (as long as you are sure that whatever you are giving them is healthy). The plant in conjunction with microbes take care of ph in the soil and it will fluctuate accordingly.
 
longball said:
It is very possible to over water the medium a plant is in(soil, coco.etc,.) And kill the plant. Why is this?
Click to expand...
Fish said:
Hey @longball.
An answer to fun fact 2 is oxygen. If the medium is too wet for too long the roots/plant will suffocate, and/or then the weakened/stressed plant will come under attack from what ever is around. Sodden roots equal - damping of disease, usually first.
I’m with you though on starting with pH and moving from there.

Cheers
Fish
Click to expand...
exactly, you get anaerobic circumstances, and the plant doesnt prefer a lot of those microbes. hydroponic system has extremely good drainage, - thats why it works there i think.
 
@pleased420 said: "As I really have no clue about what that could mean... Feel free to comment on that "

Did you calibrate your tester correctly? We need accurate numbers to make accurate guesses! ;)

Here is a decent article explaining runoff PH and to some degree PH for plants general. I did not see a soil PH number but it should generally be somewhere between the water PH and the runoff pH. As a rule of thumb, soil/water PH should be between 6.0-7.0 As plants are living things, there is variation in the preferred PH of plants and strains. Some strains can be quite fussy and insist on PH of 6.1, others, 6.8 I have not grown SSH so not sure what she likes. This comes from experience. Maybe someone who has grown it will chime in?

Ok, while you are reading this article, I am going to make dinner and then take a walk! :)

Explaining Runoff PH

Longball
 
Yep, the tester is calibrated, as long as "CAL" is shown, the readings should be fine...In general I'm aware that our beloved plant likes the PH to be somewhere between 6-7, when grown in soil. I wonder: shouldn't RO water be quite neutral at PH 7? My theory right now is, that the compost I used might be the problem... I bought it last year and it was stored on my balcony in a bag... I put inside for a few days to "warm it up" before I used it... Maybe the micro life is off or something?
 
RO water is slightly acidic with a PH of 6.0 - 6.5. Remember RO water is stripped of all contaminants, nutrients, and minerals. You are not getting Calcium or Magnesium that is usually in tap water. You might want to look into that. I've never had a Cal-Mag deficit so not sure how to check for it. Hopefuly, someone with experience with a Cal-Mag problem will chime in.

"Calcium & Magnesium Supplements

When using RO water for growing cannabis, it is important to use a Cal-Mag (Calcium and Magnesium) supplement along side your regular cannabis nutrients. This is because you need to make up for some of the trace minerals that are normally found in regular water. CaliMagic is a popular Cal-Mag supplement from General Hydroponics, but other Cal-Mag supplements (made for plants) will also work."

Some of your leafs look a little too yellow for your plant size. Calcium Deficiency

Leaves should be looking happy and healthy from top to bottom.
NL.jpg

Longball
 
I’m with @longball when in doubt a repot with some more fresh soil/medium helps I find.
Also this is a good read:
www.mdpi.com

Characterization of Nutrient Disorders of Cannabis sativa

Essential plant nutrients are needed at crop-specific concentrations to obtain optimum growth or yield. Plant tissue (foliar) analysis is the standard method for measuring those levels in crops. Symptoms of nutrient deficiency occur when those tissue concentrations fall to a level where growth...
www.mdpi.com www.mdpi.com
It’s a research paper but easy to understand and has lots of photos to compare with your own problems.
Cheers
Fish
 
Thank you so much for your input @longball , @Fish 😍 until now I didn't feed any nutrients. My plan is to uppot them in some time into my pre mixed "super soil" according to the "True living organics" book and then RO water should be fine as kelp and alfalfa should supplement the calcium and magnesium... They should regenerate after that.. My last grow went really well with that soil mix. We'll see how this round turns out.
 
Today I uppotted my plants into 5,5l pots with my "true living organics soil". We will see how this turns out 😂 I added some mycorrhizae and mulched the pots and watered with RO water. The plants were then moved into a bigger tent and under my Sanlight EVO4-80 (250watts) dimmed to 100 watts right now. I also topped them today.
Super Silver Haze A-F, still in the first two rows:
111_lzGXIxDh1C.jpeg
Hope you had some nice holidays!

Green greetings,

pleased420
 
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