Is this amount of leaf drop normal for outdoor plants in 3rd week of flower?

This is my first grow ever, outdoors in continental climate. I grew three different strains from seed in 5 gallon fabric pots using Natures Living Soil. Vegetative went great. The plants started to flower naturally around 3 weeks ago.

Since then, I have noticed a yellowing of leaves in the lower undergrowth of a single plant (the leaves eventually fell off). Thinking this was a nitrogen deficiency I top dressed each plant with 2 tablespoons of Natures Living Soil about one week into flower, two weeks ago. However, the leaves are still yellowing and falling off. I did not trim anything under growth during the plants life cycle.

I'm wondering if someone with more experience could let me know if they think this is part of the normal flowering process of the plant? These leaves are in the lower 3rd and do not receive much light. Or if they look more like a nutrient deficiency I need to address?

One plant is worse than the others but they all seem to be doing it now and progressing, please see attached pictures. One is the amount of leaves I have lost from all three plants in the past week.

Would appreciate any help or guidance!

What size pots?
Something you did two weeks ago may not show up till now and as a rule the plant eating itself is an indication it needs more nutrients

Its normal when they start running out of food,, just give'm alittle more food.. you'll be fine..

They're 5 gallon pots. They roots fully occupy the whole pot. To be honest, I planted the seeds June 15th and didn't expect the plants to get so large, definitely going with 10 gallon or more next year.

I know the supersoil takes a while to break down biologically but my hope is to keep the grow fully organic.

No chance that this is just natural in flipping to flower and lower leave not getting enough light? Or would you start looking into supplementing with synthetic nutes?

NYG140 said:

They're 5 gallon pots. They roots fully occupy the whole pot. To be honest, I planted the seeds June 15th and didn't expect the plants to get so large, definitely going with 10 gallon or more next year.

I know the supersoil takes a while to break down biologically but my hope is to keep the grow fully organic.

No chance that this is just natural in flipping to flower and lower leave not getting enough light? Or would you start looking into supplementing with synthetic nutes?

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Theyre running low on nitrogen.. thats why the leaves are fading yellow.. give them some food and they'll be alright

Top dress with some worm castings or tea.. or go the synthetic route ..

Sounds good, I think I will do another top dress, I didn't get a great results from 2 Tbsp of supersoil concentrate per plant 2 weeks ago, but another round might be needed and will take some time to work it's way in.

NYG140 said:

Sounds good, I think I will do another top dress, I didn't get a great results from 2 Tbsp of supersoil concentrate per plant 2 weeks ago, but another round might be needed and will take some time to work it's way in.

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How're they looking now mate?

Pretty sure coffee grounds, bat guano and fish emulsion are all good for some nitrogen in organic grows, not sure if coffee grounds effect microorganisms though.

I think they look good bro. Doesn’t seem to be too much yellowing. I’m in week 5 and have substantially more yellow leaves. The plants are just getting their food from their reservoirs.

Spent coffee grounds. Like brew a pot and use the leftovers. It's a major ingredient to grow magic mushrooms so should be fine lol.