Is this natural or do i have an issue ?

Hi fellas I always assumed yellowing of leaves towards the end of my Grow's were normal but after doing a little reading here it would appear not. Here are my ladies in week 7 of flower they are in 35 gallon pots and stand about 5 foot 8 tall I think they are roughly another 3 weeks from being finished. I used advanced nutrients and in the past seven days I stepped up the watering from 1.5 to about 3 litres per day im wondering if they yellowing could be due to overwatering ?

Can anyone help me out here guys ?

are you watering plain water?

some of those leaf look like a bit of a deficiency, but also some looks like your herb is just about finished. I'd just let it ride till finish because at this point nothing going to ruin your harvest unless it's bugs. but bugs I'm sure you would notice.

legalcanada said:

are you watering plain water?

Click to expand...

Yes plain water mate. I dont ph it, because i use advance nutrients and its PH perfect.

draxhemp said:

some of those leaf look like a bit of a deficiency, but also some looks like your herb is just about finished. I'd just let it ride till finish because at this point nothing going to ruin your harvest unless it's bugs. but bugs I'm sure you would notice.

Click to expand...

I have about 3 weeks left looking at them and i know they put on about 20% of the weight in the last two weeks is in not critical i get them right or i risk losing a lot of yield come the end.

Gents any advice whats happening here ? can it be corrected will it have an effect on my end yield ? the quality of my bud ?

i don't think so, pluck a couple off each day if they are bothering you ^_^

They are fine, especially if they are in soil. (they look awesome BTW)

Hydro growers often get no or little yellowing as they finish faster.

They are in Soil but if im causing toxicity surely i'm hurting my end yield and quality

A caller has the same Q as you. May be worth the watch. about 15min mark

I think you're good dude, if all the leaves are yellowing and dying that's one thing but you still got plenty of green in there. If you're really worried you could feed them half strength nutes but I'd just let them ride.

Is the soil drying out a bit between waterings? If you're watering everyday I could see that being a problem unless its coco.

just a little fade...I use nitrogen through the 4th or 5th week of flower.
the plants need nitrogen just not as much in flower.
This is strain dependent of course.
your plants look great

Watering 1.5 litres every day? That's not good.
You need to water the pot thoroughly until you have some run off come out the bottom. In a 5 gal pot that means about 5 to 6 litres if you're using promix or something similar. This should be done about every 4 to 5 days or so depending on how fast they drink. It's tricky... have to water before the pot dries out too much but you don't want to over water too much either.

If you don't water until run off what will happen is salt build up in your grow medium and the plants suck that up and then they lock out all nutes and then the plants start to eat themselves looking for nutes... this is where the leaves start to yellow and brown.

I can almost guarantee that you have locked your plants out.