The Grow Awards 2026 🏆

Back to Grow Questions

Nutrient burn/not enough nutes or normal?

Verdosstarted grow question 4y ago

Should I be concerned about the dying leaves near the bottom? I first thought it was nutrient burn but I’m now doubting myself!

Verdos

Solved

Feeding. Deficiences

likes

HyperactiveHighsanswered grow question 4y ago

It's a bit hard to tell from the picture tbh. Typically bottom leaves yellowing and dying is a sign of the plant pulling nutrients from older growth to newer growth. To me, this looks like either early signs of magnesium deficiency or nitrogen deficiency. Magnesium is a mobile nutrient and shows in the bottom leaves first.

1 like

Complain

Selected By The Grower

Similar Grow Questions

Solved

Grey leaf tips Booth plants are showing some kinds of burn and I am not sure if it is nutrient burn or light burn or if there is something missing. Looks a bit like MG deficite but shouldn't the plant take that from the soil in that state and age?

Leaves. Color - Yellow

Leaves. Color - Black or grey

Feeding. Deficiences

2y ago

5

5

Solved

First time Coco coir. I neglected to check the pH before planting, and I can't seem to get the pH down from 7 to 6. I have tried rinsing with several gallons of 5.5 pH, no help. What is safe to add while growing? Thanks!

Feeding. Deficiences

5y ago

2

2

Solved

What does she need?What does she need? Should I give more cannabio bloom and water for here?

Feeding. Deficiences

1y ago

5

5

Solved

too many nutrients?I am asking for advice, is it possible that my plants got too much fertilizer. I watered them in the fourth week, I gave them 0.5ml per liter once CalMag, Bio-Bloom, TopMax, Fish-mix,Biobizz then during the 7th week 1 ml per liter CalMag, Bio-Bloom, TopMax, Fish-mix,Biobizz

Feeding. Chemical composition

Feeding. Deficiences

4y ago

2

4

Solved

nutrient deficiency??is it a nutrient deficiency? she was watered once with TerraVega after transplanting and starting the vegetation stage

Other. Mold

Feeding. Deficiences

Feeding. Other

4y ago

2

3

Solved

Possible toxicity or deficiency?I saw this on one of my bottom leaves this morning. Hopefully someone can give insight of what it might be. I'm concerned that it is phosphorous deficiency. I didn't notice it a day ago, but I wasn't looking closely. 2 days ago I watered her (540 mL, 1/4 tsp nutrients). Thoughts?

Leaves. Color - Yellow

Feeding. Deficiences

3y ago

5

5

Solved

Low PH runoff, dealing with deficiency due to low soil PH. Added lime and PH went from 5.4 to 5.0 after watering. How to raise it safely and quickly?I have been dealing with a nutrient deficiency so added nutrients.It looked ok but then got a bit worse and I took some runoff readings which were 5.4 and then 5.0 the next week after adding lime to raise soil PH. How can I best raise the soil Ph being that I added lime already.

Leaves. Color - Pale

Feeding. Deficiences

3y ago

1

3

Solved

Hey, anyone got any idea or clue what's going on?I thought it was a manganese or iron deficiency from an early watering with high pH. Though I've fed/watered my other 2 plants pretty much the same stuff but she seems to be reacting really poorly. She seems to be getting better slowly.. I think. Thanks for taking the time. :)

Leaves. Other

Plant. Other

Feeding. Deficiences

5y ago

3

Solved

What deficiency is this ?What is happening to my plant right now ? I believe it is calcium deficiency also could be Manganese from the pictures. I did not add CalMag during the first weeks. Usually Calcium deficiency shows after 4 weeks and during flower but not likely in soil. Started around 6th week

Leaves. Color - Dark-brown

Setup. Strain - Autoflowering

Feeding. Deficiences

2y ago

5

3

Solved

Whats up with my leaves Whats up with the discoloration on my fan leaves? Calmag?

Leaves. Veins - yellow between

Leaves. Color - Yellow

Feeding. Deficiences

5y ago

1

2

Solved

Deficiences or overfeeding In the last 3 days two of my plant seem to have some problems. First the oldest leaf turno Yellow and the become burnt. I Always check the ph solution and i Always feed them in this 2 weeks so i thought that maybe i overfeed them. I post the pics in the appropriate section.HELPLS

Leaves. Veins - yellow between

Leaves. Color - Yellow

Feeding. Deficiences

4y ago

5

4

Solved

KronicAquaponic

Lime green and droopy So she has been getting lighter the last couple weeks since the soil became too wet from being too deep in the aquaponic water, figure it’s ph related but I flushed her twice, each time ph came down, but didn’t seem to help, am I going the right direction or is it just N def now?

Feeding. Deficiences

3y ago

4

Solved

Carencia o falta de riego Por que las hojas de mi godzilla auto se están poniendo amarillas y se caen? Es por carencia de algo? En el último riego note como mejoraron un poco pero han vuelto a ponerse amarillas

Feeding. Deficiences

2y ago

3

2

Solved

Burned Tips Is it over or underfeed , because some tips burned ... ?!

Leaves. Tips - Burnt

Feeding. Deficiences

5y ago

1

2

Solved

What is the best choice for a reasonably priced, accurate PH meter? I have yellowing new growth.

Feeding. Deficiences

3y ago

5

7

Solved

Preflower stage at week 3 ?!Is it normal that my Bubble kush auto at week 3 is already starting preflowering stage ? if so is that why the first leaves are starting to fade to light green im not sure what to do at this stage. I stopped giving her biobizz nutrients and just plain water at 6 ph with 15 PPM.

Feeding. Deficiences

6y ago

3

3

Solved

Potassium deficiency?Can someone pls. confirm that this is a potassium deficiency? I’m in the 6th week flower I was very low on ppm feeding It’s effecting the upper leaves mostly Using LED 150w marshydro It’s an organic grow. Please let me know Thanks!

Feeding. Deficiences

5y ago

1

1

Solved

Small orange/bronze spots?So some of the leaves in the middle/top of my plant are getting these orange/bronze spots. I’ve seen examples of a few different issues that looks similar. Can anybody tell what’s going on here? Happy to give more info

Leaves. Other

Other. General questions

Feeding. Deficiences

4y ago

1

1

Solved

Textbook deficiency/over feed, any advice on wich one ?Hello guys ! I think i'm encountering a text book deficiency/over feed but can't figure out which one. This is a Frostbanger auto from 24buds in Plagron royal mix at week 4, under 150 led watt. Been giving her only some power roots & power zym with evaporated tap water :(

Leaves. Edges burnt

Leaves. Color - Yellow

Feeding. Deficiences

7mo ago

4

Solved

Deficiency or Nute Lock?I was a told a week prior I was feeling too much. So I stopped. I left town for 4 days and came home to the current photos. One looks like nitrogen deficiency, the other looks like calcium deficiency except I've fed 1tsp of tiger bloom, .5tsp of Cal-Mag and big bloom last week.

Leaves. Color - Yellow

Feeding. Deficiences

Feeding. Other

4y ago

3

3