Upper Yellowing Leaves During Flower

Sorry no pictures. The plant is a huge disaster and this girl was never supposed to make it to flower. My test plant is roughly 4 weeks into flower and has been tortured a large part of her life. Before I started to really take care of her she was; overwatered, overfed, burnt, fed very high ph water, at least 10 clone attempts tried 3 of them during flower, bad soil, 100+ temps. Even ciggarrettes butts found their way into her pot.

I am confident I over fed her which resulted in the tips of the plant yellowing and a few spots. The next 3 waterings were w/o nutes. I just gave her 1/2 dose of foxfarm's flower forumla last night.

I have yellowing leaves at the bottom which appear to normal during this stage. The problem is I have some large fan leaves around bud up top that are going yellow. The yellow is working its way from the tips to the stem and has taken about 60% of these leaves. Between the yellowing at the bottom and the yellowing at the top everything looks normal and pretty green.

The plant has looked like ass since the day I started it, which is why pictures would be embarrassing. I called this one cabbage and just have really been experimenting on it.

Edit; I have decided to post pictures tonight when the lights come back around. The buds look healthy despite everything I have done.

You are lacking sulfur or iron... or both.

Have you been ph'ing your feed... lockout, I think should be the cause of your plant lacking these nutrients.

After reading all of your post I have determined that you are def' suffering from undernuting... maybe caused by lockout.

How close are you to harvest?

I water the plants purifed water from Walmart, recyling the gallon jugs and filling them at some fancy device. Is this taking vital ingredients the plant needs from the water ?

I went roughly 12 days on straight water with no nutes. Yellowing started and I added fox farms soil stuff at 1/2 strength.

This is my first grow so its tough to determine how long till harvest. If I was guessing I would say another 4 weeks.

What is lockout ?

You need to ph the feed to a required level before giving it to the plants. Try walmart, I'm not from America and have never been to one of the stores, if you don't have much money and buy a liquid litmus test kit for testing the ph of your feed. These cost around $10. Or if you have a little extra cash...

Digital ph pens are available on ebay for around $35-$40. Get one asap.

The soil is promix and just tested with a cheap device also from Walmart at around 7-7.5. The water I am feeding it tested around 6-6.5. My tap water goes up and down and just came in at 7-7.5. The previous test done with cheap drops and multiple samples.

Well if you're sure you're doing everything right...

What makes you think the plant has 4 weeks left before it finishes?

You need to get some nutes that contain sulfur and iron. Do your nutes contain these? If they do, increase your feed. keep the ph of the feed down to 6.0 for this feed... just to be safe.

Here are some photos. This is the best example of the yellow I am uncertain is normal.



Here are some samples of the buds with the light on;

thanks for the pics. Flush your plants... you've overnuted. How close are your lights?

skunkushybrid said:

thanks for the pics. Flush your plants... you've overnuted. How close are your lights?

Click to expand...

The pictures were taken hours after I BEGAN feeding it nutes again. Prior to this I did 4 waterings of straight water flushing the pot each time with an extra half gallon of water.

The light is about 6 inches from the top of the plant. I dont believe this is an issue despite the plants appearence. There were four and the other 3 grew right into the glass on the reflector and loved it.

This plant has looked like ass since birth, I never intended to post picturs

Flush now with plain ph'd water... leave her to drain off till the medium is nice and dry. You should see an improvement.

If not for the pic's...

get a cheap ($10) soil Ph meter. you just stick the metal probe in the soil that is in with the plant (not in the bag) You need to get and keep the soil ph at 6.2-6.8 . You should be using bloom nutes (higher in phosphorous and potassium, less nitrogen) for flowering if you are not already. Bottled/purified water is an unnecessary expense and effort IMHO, get the water+nutes ph right with litmus paper(cheaper) or pen style ph meter(more expensive) Adjust Ph up or down after adding nutes as the nutes will raise the ph. I'd say Good Luck, but you must already have it to have that plant come out as well as it has under the circumstances!

Judging by the weight the next watering will occur tonight. I am schedule for plain water without nutes. I will give the plant an extra 1/2 gallon to flush so I can say I did. All the damamge you are seeing and believe releated to nutes had to be the result of a watering roughly 2 weeks ago. Since I noticed the tips I have been using plain water. Only hours before the photo did I give her nutrients again. Flushing again sounds crazy but im due for plain water tonight so I will give her some extra.

This was my practice plant, i never thought it would come down to me flowering this crap bag seed. I have learned alot along the way to say the least.

I am worried the yellowing is a result of NOT GIVING it nutes since I didnt see any of that until I cut off feeding it...

It's true that as things go a certain distance it is hard to tell the difference between one or the other.

How are your leaf stems? What colour are they?

You may find this nutrient table helpful... Cannabis Nutrient and Deficiency Table

It can take up to a week, or even two to recover from an overnute. I'm sure the chart will help you see what you've done.

Now you got me confused lol, I think it might be a deficiency.. I am going to water as normal flushing tonight with 1/2 doses of nutes every other water and see what happens.. After all it is just a test plant..

Chosen said:

Now you got me confused lol, I think it might be a deficiency.. I am going to water as normal flushing tonight with 1/2 doses of nutes every other water and see what happens.. After all it is just a test plant..

Click to expand...

If your leaf stems aren't purple, and the yellowing starts at the tip of the leaves, which soon go brown and die. This is overnute. Definitely.