Leafs turning yellow during flowering

Discussion in 'Growing Information' started by connde, Mar 1, 2017.

  1. connde

    connde Registered

    Hello, I have a Amnesia in flowering stage, it looks is going ok, but since some days ago the leafs are getting yellow, I thought it was ok first, but it seems it is increasing.

    They are in a 20 liter pot, they are on outdoors always.

    On the vegetation stage I was using Sensi Grow A&B from Advanced Nutrients (2ml per liter) and on the blooming phase I'm using Sensi Bloom A&B (2.5ml per liter).

    I always do one watering with plain water and one with nutrients. Right now I'm not adding nutrients, just plain water.

    I had a spider mite problem but it was resolved as I don't see new marks neither the mites bellow the leafs.

    Could this be a problem or just a advanced flowering stage consuming those leafs?


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  2. emilya

    emilya Future Dispensary Owner

    Since these plants are outside, they get a lot more light and air flow than an indoor plant would possibly get. I think it is a sure bet that your nutrient recommendations are for an indoor plant, and outside you could probably get by with doubling or even tripling the dosage you are presently giving. Your plants look to be healthy, but just a bit hungry. That progression of the yellowing up from the bottom is your clue... your plant is grabbing all the mobile nutrients that it can from those lower leaves so as to be able to supply what is needed to the buds.
    Give them a good dose of 2x nutes and see what happen... I bet they green right up. :)
  3. connde

    connde Registered

    Thanks for the tip, I will do it and post back in a couple of days.
    • Like Like x 1
  4. connde

    connde Registered

  5. gardenermendo

    gardenermendo Registered+

    Your 20 liter pot is like a 5 gallon pot. In the future, you could go to larger pots and get 8 foot plants. At the stage you're in, they will take regular DAILY liquid nutrients intended for cannabis, or the days the pot is dry enough to be watered next. Just follow the amounts to use on the bottle. I use the exact same nutrient/rates on indoor vs outdoor... but because I do bigger pots, I get very large outdoor plants, and of course, the volume of water is more, because I water to the point that a little drainage happens.

    I think your issue is related to the fact that the pot size is restricting growth in a way. When you use grow nutrients, you're giving them nitrogen which makes them nice and green. When you switch to bloom nutrients, it's cutting back nitrogen, and your plant is showing that it's lacking a bit in nitrogen. Your plants look pretty good, the yellowing is minor and may be just the normal factor of advancing towards maturity. I would suggest continuing with nutrients each time you water. They can take it.

    Keep growing, you're doing great!
    Last edited: Apr 15, 2017

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