over fertilizing or under

Ferredoxin

Active Member
An 8 month old mother in an above-ground pot most likely has pH problems in the soil. I would re-pot into a larger container with fresh soil.
 

Snow Crash

Well-Known Member
I can say this is the result of probably Potassium deficiency with heat damage.

I cannot say how it happened. Could be over or under, could be pH. The heat damage is an easy thing to remedy and that might resolve the problem altogether. I'd start there. Fix the temperatures.
 

Snow Crash

Well-Known Member
They look bad. I see evidence of so many things.

Over watering.
Over fertilization.
Spotting from pH fluctuation.
Calcium Deficiency. Potassium Deficiency.
Heat damage. What looks like high humidity.


Possibly a hotbed for mold.

Saving these is going to cost you money because your indoor environment does not appear to be suited to growing cannabis. You need to try to improve on nature...

1. Your soil needs more aeration. You should probably transplant what root ball is left into a larger container with better soil containing at least 25% perlite. I also suggest you employ the usage of a good 1 tablespoon of crushed dolomite garden lime per gallon of mix to help you stabilize the pH a little and provide some much needed micro nutrition.. Just let the soil do the work for a while and run clean water after the transplant for at least 12 days. When you do feed again, just feed very lightly, with an balanced organic nutrient that has a profile like 3-3-4.

2. Fix the environment by adding more ventilation and circulation. The leaves should be fluttering lightly all day long or with a oscillating fan you can have it a little more vigorous. The exchange of air is very important in your area and I think this is something you could probably benefit from. Figure $80 to $100 can get you a 16" oscillating fan from [insert megastore] and a decent 180cfm to 400cfm exhaust fan online. Sounds like a bit of cash, I know, but the ventilation is just one aspect that cannot be underestimated. You can lose your entire crop to bad ventilation no matter what kind lighting the grower has. Over the long haul these fans will get you through many grows and improve your yields. They pay for themselves quickly.

Just do it!!!! "[insert obligatory Arnold quote]"

If you get things straightened out you still have plenty of time to get them squared and flowering. They are salvageable.
 

Mother's Finest

Well-Known Member
We can't be sure about any overfertilization because there isn't a good enough view of the lowest leaves. Your main problems, also mentioned by Snow, are soil Ph and broad-spectrum deficiency. Check the Ph of your soil and all liquids you give the plants immediately. Post what you water them with, feed them and what kind of soil they are in.

While you're picking up a soil Ph tester, you should get some good new fertilizer. A little Guano & Maxicrop would do wonders. If cost is an issue, I was just in a thread posting about cheap ferts:

Blood Meal (N & micros; $1/lb), Bone Meal (P & micros; $.80/lb) and Palm Bunch Ash (0-0-30; $2/lb) should supply all of the nutrients any plants need for any growth period. They are all very cheap but the prices listed are in large bags. I wouldn't grow without Worm Castings as well if I could avoid it.
 

*BUDS

Well-Known Member
Magnesium deficiency will exhibit a yellowing (which may turn brown) and interveinal chlorosis beginning in the older leaves. The older leaves will be the first to develop interveinal chlorosis. Starting at leaf margin or tip and progressing inward between the veins. Notice how the veins remain somewhat green though. remedy-This can be quickly resolved by watering with 1 tablespoon Epsom salts/gallon of water
 
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