Wk6 Flwr, half branches swayed/leaning over

So i came home on lunch to burp my jars of Goddather OG. Doing just fine there. Then before leaving I checked my Bubblegum Sherb photoperiod....half the branches furthest away from the pot were leaning over almost horizontal. Only wk6 of flower, buds aren't big at all.

I also have yellowing of most the lowest old leaves. But its a wild mix - interveinal chlorosis, some straight yellowing from edge in(veins too),and some necrosis along leaf edges, and a few curling funky. I thought PK and mag deficiency and fed accordingly. Made sense to me since she should be bulking pretty heavily right now. Yet the pot still feels moist, and half way wet/dry based on pot weight...I don't know

I thought with all the various symptoms its 1 of 2 things - 1) root bound which is supposed to be very unlikely in fab pots, especially since mine are on caddies so the bottom breathes.
2) Soil/medium issue, pH imbalance and/or salt build up? I've used 1/3rd to half recommended nutes; cycling feed, water, feed. Hell sometimes i watered, then did a half water and half nutes, followed by another watering.
3) root rot? I know a few times throughout the grow the medium felt very tight/compacted, which i tried to gentle massage and squeeze loose when watering. Heard of compacted cores not breathing right.

Medium 40% jiffy seed starter mix, 20% perlite, 40% epsoma Organics soil+ decayed matter from previous 2 grows. Cooked the soil for 3 weeks with Epsoma Bio-tone Starter Plus(organic), bag says it only lasts 4 weeks. Im currently on week 12 since seedling, so that shouldnt be a factor unless it leaves behind salt??? Then 1/3rd dosages of fish fert, FF Big Bloom through veg, split fish fert dosage with FF Tiger Bloom week 6 to transition to stretch, end wk7 no more fish fert. Gave pure epsom salts(mag), crush up tums(calcium) once around week 9, and the. Again just 2 days ago(wk12).

Lights
2x100watt LM301H Geciliaoran G1000's
12" from tops: 950-1250 PPFD
~20" from canopy: 500-800 ppfd

When in doubt flush the hell out of her yes? Anyone else got any thoughts? Dial back lights some?? A lot to read, but I try to cover the most common questions asked. Thank you to anyone that responds. Pics after work!

Hard to know for sure, if you've been watering to runoff (10% or more), I wouldn't think a flush would be necesary, but it could be. If'n it was me I think I'd do a good flush, reset the soil, and then up the feeding to at least 50-75% and see what that does, that seed starter mix has only short term nutes in it. Let's see what others have to say. BTW, pics would be helpful.

Phytoplankton said:

Hard to know for sure, if you've been watering to runoff (10% or more), I wouldn't think a flush would be necesary, but it could be. If'n it was me I think I'd do a good flush, reset the soil, and then up the feeding to at least 50-75% and see what that does, that seed starter mix has only short term nutes in it. Let's see what others have to say. BTW, pics would be helpful.

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Ah one of my heroes but didnt read it all lol. I listed all nutes I've used after the first 4 weeks. And yeah i always keep a dish rag or towel ready to soak up run off under the caddies. Ugh gonna suck to have to flush after rigging a simple trellis around her. Thank the Lord its the weekend

Time to bust out the bamboo stakes...

Some plants can hold their weight better than others. I grew a sativa recently that was so lanky and vine-like it needed support before it even finished the flowering stretch

I use wooden dowels.

MickFoster said:

I use wooden dowels.

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Bamboo garden stakes work well too!

Now idk if she did drink some more, or if i was in such a tizzy trying to get everything done on lunch break, but the pot felt fairly light just now getting home from work.

EDIT: I turned off the fan, raised the lights 2" to help reduce stress. Watered 3/4th a gallon water with 2tsp of Tiger Bloom, and a tablespoon of gma's unsulphured molasses. I'm banking on actually being under watered. If over watered - in my limited experience the plant as a whole sags or is equally limp. Hope I'm right.
PPFD of tops is 850-1100 now, canopy 500-800 depending - spots in center of the 2 100watts are getting those max numbers.

Found some interesting info
"Turgor pressure is the plant's equivalent of a pumped-up balloon. When it's right, leaves are perky; when it's not, they droop like a deflated party decoration. Proper watering is key here. It's a balancing act—too much and roots get soggy, too little and leaves thirst to death. Nutrient management is another piece of the puzzle. Potassium, in particular, is like the plant's personal trainer, keeping those guard cells in shape to maintain that crucial pressure."

Since potassium is key in the rigidity of your plant, and I'm right at the flower bloom boom, it makes me more confident in my feed choice. I mean the tops are erect, what matters over all is actually. Except 4 of the furthest tops from the main stem/root center which I supported with the quick make trellis. Further droop info from the source of the above quote. Credibility unknown atm

Remember also, that those are very old fan leaves, that may have outlived their ability to photosynthesize. It’s pretty normal to get some “fading” of the older fan leaves when the plant is in mid-late flower. When leaves have outlived their purpose the plant will secrete a compound called abscisic acid at the point the leaf petiole meets the stem, the acid basically causes the veins that bring water to the leaf to shut down, the leaf will then droop wither and eventually fall off.

Well I think I was correct. Here's the earlier pic, and then an hr after feeding. After this picture i removed any serious ugly and sagging leaves. Though im not a big fan of defoliating, I try to use common sense and clearly a limp limb and peave is gonna cost more energy to get erect and functional than the ones that perked up in the image.

Well she doesnt look bad this morning. But still got that gradual yellowing if the fan leaves from edge inward, not veinal or interveinal, complete fade.

bignugs68 said:

View attachment 5443720View attachment 5443721View attachment 5443722View attachment 5443723

Now idk if she did drink some more, or if i was in such a tizzy trying to get everything done on lunch break, but the pot felt fairly light just now getting home from work.

EDIT: I turned off the fan, raised the lights 2" to help reduce stress. Watered 3/4th a gallon water with 2tsp of Tiger Bloom, and a tablespoon of gma's unsulphured molasses. I'm banking on actually being under watered. If over watered - in my limited experience the plant as a whole sags or is equally limp. Hope I'm right.
PPFD of tops is 850-1100 now, canopy 500-800 depending - spots in center of the 2 100watts are getting those max numbers.

Click to expand...

Last pic looks like P def. It’s one of my favourite deficiencies as it’s pretty obvious to diagnose and treat!

The tell tale sign is that the leaves go yellow then a distinct grey/brown colour from the edges until the full leaf turns crispy and will just crumble away.

Simply enough just give a low dose of PK booster or more bloom feed