Vote Now 🏆 for the Grow Awards 2025!

Chat

By continuing to use the website or clicking Accept you consent to our cookies and personal data policy and confirm that you are at least 18 year old. For details please see Privacy Policy and Terms

Accept

Recommended

Grow QuestionsSick Plant Help

Sick Plant Help

VeggieTalesstarted grow question 4 years ago

Hey there fellow growers I need some advice. This Autoflower was really healthy up until I top dressed, I want to say it’s excess nutrients. I need to be sure though and would like some tips and help from more experienced growers (this is my first grow) thanks in advance!

VeggieTales

VeggieTales

VeggieTales

Solved

Leaves. Edges burnt

Leaves. Color - Yellow

likes

Mosherd7answered grow question 4 years ago

The leaf edges looking like the start of nitrogen toxicity. Just back off on the nitrogen. But that leaf looks like its starting to suffer from cal/magnesium deficiency. I'd try to up this for the rest of your grow really as its gonna need a lot for flowering stage. Good luck!

1 like

Complain

Selected By The Grower

GMSgrowsanswered grow question 4 years ago

Looks like it may have thrown your ph out. Check your runoff ph and ec levels and fix her up. Cheers

1 like

Complain

Similar Grow Questions

Solved

What issues do i have with leaves?I couldn‘t figure out the issues so i‘m leaving it to community. BioCanna soil with BioVega, BioBloom, BioFlores and Bio Rhizoton in 11l pot, Lumatek ATS 200W PRO (75%) in a 80x80 mamooth box. Light is at 50cm, climate is at 23C and 53% Thank u guys!

Leaves. Color - Yellow

4 days ago

4

Solved

Verfärbte Blätter Verfärbte und teilweise vertrocknete Blätter bei meiner Autoflower in Woche 9. Nährstoffmangel, Nährstoffüberschuss, zu viel Licht? Grobe mit biobizz biogrow, biobloom und topmax. Woran könnte es liegen?

Leaves. Color - Yellow

Leaves. Color - Dark-brown

3 days ago

3

3

Solved

Nutrient burn , this bad?Started off in hot soil. My first organic run. 5th week bloom. 75degrees 35rh. 300w led 21" from canopy.Soil pH 6-7 Using Gaia Greens top dressing for feed . All Purpose and Bloom. Added Gaia all purpose to the soil, then extra non needed amendments.Not needed .Top fed monthy

Leaves. Edges burnt

Leaves. Tips - Burnt

Leaves. Dropping off

8 days ago

4

3

Solved

Sudden Leaf Yellowing – Lighting Issue or Something Else?Hello! Yesterday, I noticed the top leaves turning slightly yellow, but today it looks dramatic. Check the pictures—leaves are yellowing and drying out rapidly. It’s only affecting the central leaves, so I suspect a lighting issue, but I’d like to confirm before taking action.

Leaves. Curl up

Leaves. Color - Yellow

12 days ago

3

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

a year ago

5

5

Solved

MarcoCasanova00

Too much light or PH imbalance?I dont know, something strange about the color, the spots on the leaves maybe? suggestions accepted. Maybe I need to add a fan ASAP, or let more air into the tent? Dimmer is sset to 20% 25% , maybe I should give more light? or maybe less?

Leaves. Color - Yellow

Leaves. Color - Pale

Setup. Lighting

a year ago

2

2

Solved

DAY44to48inFlower you can see that they are getting more and more yellow. what surprises me is that this only affects the upper leaves. PH 6.5 water ppm 75 with fertilizer pH 6.6 800ppm (tap water & distilled water with) VPD 1.3 Soil BIOBIZZ Can / should I do anyt

Leaves. Color - Yellow

a year ago

1

5

Solved

What is she telling me?Anyone know what she’s going through? Four weeks old, using tap water with hydroguard and GH FloraTrio nutrients. PH seems to go up from around 5.6 to 6.1 in a matter of hours. Ppm=635 EC=1.2 right now. Been going very easy on nutes, about half strength still. Could that be it?

Leaves. Edges burnt

Leaves. Curl up

a year ago

2

4

Solved

Tox/def Nutrient burn ? Light stress?

Leaves. Edges burnt

Leaves. Color - Yellow

a year ago

1

Solved

To leafs are starting to get some yellow areas and dry, i dont know what is this and im trying to solve it, somebody know what could this be?

Leaves. Edges burnt

Leaves. Color - Yellow

a year ago

13

3

Solved

One plant (the one on the right) is going yellow, with brown mottling on the leaves. Both plants have been treated exactly the same. I’m giving the plant some calmag and extra nutrition after flushing it (which had no effect). Any ideas to save this plant? Worried…

Leaves. Color - Yellow

Leaves. Color - Mottling

a year ago

1

3

Solved

4 days ago defoliated 3 leaves .Yesterday 2 flower showing stress , is this connected ? Normally feeding every third day 1.5 l with 2.5 ml Bionova supermix yesterday added 0.3 calmag EC 1200 PH 6.4 Also noticed that runoff PH is 5.2 runoff EC 2500 please advise thanks

Leaves. Color - Yellow

a year ago

2

2

Solved

How can i Improve my Situation ? why yellowing strarts from, the Top ?people recommend flushing, i can't flush in my situation. So what can I do to improve the situation? Less fertilizer in the future, I get it I am now watering with distilled water / tap water mix EC after Fert ~750ppm PH 6.5 thougt driving with co2 increases the Nutrition need

Leaves. Color - Yellow

a year ago

1

Solved

yellow spots first week!what does this mean? first time seeing this. its also wilted a bit. only 7 days old. didnt measure ph. im not even watering them.

Leaves. Color - Yellow

a year ago

4

6

Solved

Deficit or too much fertilizer or EC in the soil pls help I have been mixing my water with distilled water for 2 weeks before adding the fertilizer to correct my EC downwards. PH6.5 EC 800ppm after Fertalizer. Leaves are still Belbn but only top not bottom stems are purple.... I am honestly at a loss (2nd grow) should i flush or add P ?

Leaves. Color - Yellow

a year ago

2

4

Solved

Suddenly, massive problems. Tried a lot already, nothing helped yet. Any ideas what I'm missing?Hey guys, I've been growing for a few years now and something like this has never happened to me. Long story short, as soon as I move my plants from the veggie box into the flower box, they slowly start showing these symptoms (see pictures). The box worked fine for several grows

Leaves. Edges burnt

Leaves. Tips - Burnt

Leaves. Color - Yellow

a year ago

7

3

Solved

Leaf spotting Is this a light burn issue or nutrient deficiency?

Leaves. Tips - Burnt

Leaves. Color - Yellow

Leaves. Color - Dark-brown

a year ago

2

2

Solved

What kind of nutrient is missing?Hello guys. What am I looking at? It starts with the leafs turning sideways 90° and then the yellowing starts from the inside of the leaf.

Leaves. Color - Yellow

a year ago

1

Solved

First Grow ever. What should i do? Strain: Tropicozz (Perfect tree)The Tips of the leaves begin to turn yellow and dry. The Plants are about 15-17 Days old. The Temp is about 30C, Humidity from 35-60%. I put them in bigger pots with Grow mix 36h ago. i havent put nutrients at all until now exept vitamin and amino. From healthy to this in18 h.

Leaves. Tips - Die

Leaves. Color - Yellow

a year ago

2

1

Solved

Partially Dry leaves in grow phase Hello there, What's wrong with my leaves, I have a few ones in my box, I m in Coco and in grow phase

Leaves. Edges burnt

Leaves. Curl up

Leaves. Twisted

a year ago

2

2