Are they gonna DIE? Please guys need help !! PICS N ALL

Hey there,

So last week I transplanted my plants into bigger pots and new medium consisting of all organic top soil (no slow release ferts), vermiculite, perlite and coir peat moss.

I transplanted into bigger pots as they seem to be growing slow in the smaller pots, these plants are around 5.5w from seed and should be alot bigger.

They are under a 600w MH with a 18/6 lighting schedule.

When transplanting I noticed some burns n marks on the leaves n thought it might have been the lights.
Found out later it is nute burn, automatically i thought of the first medium I used which consisted of organic soil with slow release ferts.
But at transplant time I didnt know it was nute burn so when I did the first soil drench I used seasol powerfeed at 1/2 strength.

Since transplant I have gotten alot more yellow drying leaves and Im scared they are gonna die off.
I have heard of flushing but dont know how to go about it, also I havent tried because im using big pots they hold alot of water so I only need to water really once a week. So I dont wanna flush it and completely drench my soil again as its gonna be another week before they dry up again.

Basically any help on what I should do ? Its my first grow guys and I dont want these plants dying on me just yet.
Espeacially now that I invested in a decent tent setup.

Thanks in advanced guys any help, info or anything is more than appreciated.

Heres the pics -

no, they are very happy. Pluck those lower yellow leaves off, good for nothing at this point.

bigmanc said:

no, they are very happy. Pluck those lower yellow leaves off, good for nothing at this point.

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you sure bro? Its not just the lowest leaves its travelled up a couple of nodes if you look at the pictures closely you will know what i mean.
I thought to myself that they would be fine and its jus leaves yellowing off but it looks more like a burn. Seem a bit small for leaves to be falling off this early.
Also like I mentioned above, they are over 5w old from when they sprouted, they should be alot bigger.

im sure someone has a bit more insight on this !

Please guys, if im over stressing over nothing then someone please let me know.

If not what would be the best way to go about fixing the problem.
I honestly feel it only getting worse as I cant water them with plain water for another 3 days!

Let them be, water with plain water ph'd for a while. The new growth looks good from over here The old damage will not heal though.

Because they are small plants in a big container try not to soak the entire pot when watering,,, just try to dampen around the main root system.
Like I said, they look happy,, what are the temps in there?

I would not feed them nutrients at this point,,, the soil (depending on the quality) will have enough food for them for a while.

Somehow I get the feeling it's N deficiency.

Yea the should be fine my blue goo and platnium blue dream are doing te same thing...

looks like a heat issue to be honest and maybe lacking N

whodatnation said:

Let them be, water with plain water ph'd for a while. The new growth looks good from over here The old damage will not heal though.

Because they are small plants in a big container try not to soak the entire pot when watering,,, just try to dampen around the main root system.
Like I said, they look happy,, what are the temps in there?

I would not feed them nutrients at this point,,, the soil (depending on the quality) will have enough food for them for a while.

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They are in there dark period right now so when lights come back on in 4hours time ill go in and pluck all the yellowing dry dead leaves.
Ive only got a cheap soil thermometre as its the only 1 I could get my hands on and it reads that my soil temp is around 35C+/- so around 80F+/-.
I should have a 2nd inline exhaust fan coming in a couple of weeks that should help extract a little more heat.
Not sure on humidity as of yet, but it seems fairly dry, and because we are in summer over here everything is fairly dry lol.

DeeTee said:

Somehow I get the feeling it's N deficiency.

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i thought that too leaves are very yellowish at the bottom

probz be better to cut them off so plant doesnt waste energy trying to fix em

If its a N deficiency how would I go about fixing it ?
It could be heat I always thought it was a little hot, but a mate of mine came over yesterday who use's a very similar setup and said the heat and height of the lights are fine.
He had very good yeilds, but I think I can do better lol.

Will just pluckin the dead/yellowing leaves be sufficient ?

itll help less nutes goin to the dead leaves but if you have some nutes just start slow not adding full nutes but like 1/4 and work your way up.

An outside opinion. I would not give them any nutrients at this point.

What are the air temps normally? As long as your air temps are fine your soil temp should be fine. Your shooting for mid 70- mid 80f.

Ive got SeaSol PowerFeed Concentrate, is this any good for our special plants lol? Only thing I could find that was organic i think.
I have some Rambridge Liquid Gold also but now sure how I would use it, I think it might be more of a nute for flowering.

Nutes and ppm's and ph is all very new, only jus getting my head around ph levels.
Im watering with 6.3ph'd tap water, read some where on here that 6.3 is good ph levels for soil/perlite grows which is pretty much the medium im growing in.

whodatnation said:

An outside opinion. I would not give them any nutrients at this point.

What are the air temps normally? As long as your air temps are fine your soil temp should be fine. Your shooting for mid 70- mid 80f.

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i can only really read my soil temp at the moment and its at around 35c-/+ so around 80F +/-

Iv never had to read soil temp so sorry I cant help you with that one. Go ahead and google "soil temperature growing cannabis".

Nitrogen deficiency is the most commonly occurring nutrient deficiency in cannabis.

Symptoms: Lower leaves first appear pale green. The leaves then yellow and die as the Nitrogen travels to support new growth. Eventually the deficiency travels up the plant until only the new growth is green, leaving the lowest leaves to yellow and wither. Lower leaves die from the leaf tips inward. Other symptoms include smaller leaves, slow growth and a sparse profile. The stems and petioles turn a red/purple tinge. Too much nitrogen causes a lush dark green growth that is more susceptible to insects and disease. The stalks become brittle and break from lack of flexibility.

Mobility: Nitrogen can travel anywhere on the plant. usually deficiency starts on the lower of the plant because nitrogen travels to new growth.

Role it plays in nutrition: Nitrogen is directly responsible for the production of chlorophyll and amino acids, and it is essential to photosynthesis. It is an essential element of tissue; without it growth quickly stops. Any water soluble nitrogen is quickly available to the roots. Insoluble nitrogen (such as urea) needs to be broken down by microbes in the soil before the roots can absorb it. After fertilization, nitrogen deficient plants absorb N as soon as it is available and start to change from pale to a healthy looking green. Deficient plants usually recover in about a week, but the most affected leaves do not recover. Urine, fish emulsion (5-1-1) high nitrogen bat or seabird guano also act quickly. In soils high nitrogen fertilizers such as alfalfa and cottonseed meals, manure, feather meal and fish meal all supply nitrogen fairly quickly but release it over the growing season.

Progression: Older leaves yellow between the veins. Older bottom leaves turn entirely yellow. More and more leaves yellow. Severely affected leaves drop. Leaves might develop reddish-purple stems and veins on leaf undersides. Progressively younger leaves develop interveinal chlorosis. All foliage will eventually yellow and the leaf drop is severe.

Treat deficiency by fertilizing with nitrogen or a complete NPK fertilizer. You should see results in four to five days.

When looking for a fertilizer check the N-P-K. The first number represents Nitrogen, and during vegetative growth it uses more nitrogen so getting a fertilizer with a higher Nitrogen level is better at this point. As someone mentioned earlier, start off slow by using 1/4 amount of the recommended dose and slowly increase the amount over time.