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

Back to Grow Questions

Leaves turning yellow

Lazarousstarted grow question 5 years ago

I have leaves turning yellow on the bottom of my plants and than falling off, there 2 weeks in to flowering and i am giving less than recommended (by the supplier) nutrients, I am feeding them 2x a week. Should I be increasing the nutrients?

Lazarous

Lazarous

Lazarous

Lazarous

Lazarous

Lazarous

Lazarous

Solved

Leaves. Dropping off

Leaves. Color - Yellow

likes

rhodes68answered grow question 5 years ago

Needs more nitrogen

1 like

Complain

Selected By The Grower

Lazarousanswered grow question 5 years ago

Thank you guys.

likes

Complain

Doktorhollandanswered grow question 5 years ago

more nitro

1 like

Complain

Similar Grow Questions

Solved

Bottom leaves yellowish - why? And can I top?On both of my plants (C99 & S.A.D.) the bottom leaves are turning yellowish and I can't figure out why. I'd also like to top them this week (above 3rd node), but I'm hesitant because of the leaves. Any advice on what they may be missing, and whether I should wait with topping?

Leaves. Color - Yellow

Techniques. Topping

a year ago

3

3

Solved

Week 2: One of the plants still doesn't look good + other beginner questions :)Second week and one of the plants has weird spots + leaves curled. Not sure what to do. Do I overwater? Is it some kind of disease or deficiency? No idea. Also, when should I start feeding the plants? And how much water do I need at this point? 😥

Leaves. Curl up

Leaves. Color - Yellow

Leaves. Color - Mottling

a year ago

6

6

Solved

Have i overwatered?This is Royal jack auto at week 5 in 9 Liter Pot. I have watered with 3 Liters. Last time it was watered was before 5 days again with 3 Liters. On my last watering i did not noticed any droopy leafs. But today it looks very droopy. Can i do something about it or just wait?

Leaves. Dropping off

a year ago

3

Solved

Brown spots on top leaves - nutrients, light or something else?She went into flower, now stretching. Set light to 100%, added Bio-Bizz Top-Max and Bio-Bloom (1ml/L each). 3 days later brown spots appeared on top fan leaves, very few also on lower fan leaves. I suspect this could be light burn or nutrient related. Any ideas? Pls help

Leaves. Color - Yellow

Leaves. Other

a year ago

8

3

Solved

Nitrogen deficit?The bigger plant is struggeling a bit again. After some talks and readings it could be a nitrogen deficit but am not really sure how if I should react to it, since the need of the plant should get less for nitrogen in the next weeks. Please read my journal for more information.

Leaves. Color - Yellow

a year ago

6

7

Solved

some color difference (spots) on leaves?Hey guys i‘m new to this hobby i‘m growing Super Lemon Haze (auto) by Greenhouse Seeds and i was wondering what these spots could be. Any idea? I‘ve tried to find an answer but i couldn‘t find it. Thank you for all your support on this page. Thanks in advance! Peace

Leaves. Color - Yellow

a year ago

1

2

Solved

Yellow canopy Nutrition deficit?Hi guys can some one help? Is this magnesium or iron deficit? Or smth with roots?(canopy is yellow) Ph of soil was almost 5.8/ 6 smth I had some days a bit heat about 27 /29 degree but the plant next to it looks great they both got some biobuzz grow 4 days ago

Leaves. Color - Yellow

a year ago

3

4

Solved

Yellow leaf Hey guys, Why are both of my Banana Purple Punch autos are yellow on the tip of their leafes. They are 7 days old. Water PH= 6.6. light: Mars hydro fc-1500: 25% 25cm The og kush next to it looks healthy...

Leaves. Color - Yellow

a year ago

4

5

Solved

Idk what's wrong Can anyone help me figure out what's wrong with this baby? Special queen photo, week 8 of veg, organic pellet fertilizer added directly in soil. Always watered just water, seemed so healthy till last week, then leaves started yellowing a bit.. Nutrient deiciency/excess? Wdy think

Leaves. Color - Yellow

Feeding. Deficiences

Techniques. Topping

a year ago

2

Solved

what's wrong with her? :/Leaves are curling down and get little yellow stretches all over what should i do?

Leaves. Curl down

Leaves. Color - Yellow

a year ago

2

1

Solved

Yellow spots on the leafs On my big one of the mystery seeds are a few yellow spots, can it be that this is from water from the watering yesterday? Or is it an other problem?

Leaves. Color - Yellow

a year ago

6

3

Solved

Can someone help a beginner please ?Can someone help please, I just got them last week I potted them and now the leaves look yelliw with dark Brown edges. Could it be too much nutrient? I did not Add some... maybe the soll?

Leaves. Edges burnt

Leaves. Color - Yellow

a year ago

1

2

Solved

do they looking healthy?I'm worried about the yellow points on the leafs, maybe i give them too much water or the light is too strong? thx for help🏻

Leaves. Color - Yellow

a year ago

1

1

Solved

Begginner needs help.The first plant is in 10th day. It looks so weird. Im using biobizz light mix and Harvest Master Pro RB330. Dimmer is 50% and space between plant and light is 45cm. I've got Biobizz grow-bloom-topmax. Can you help me? :( 2. plant is in 3rd day. I want grow this one in properway

Leaves. Too few

Leaves. Twisted

Leaves. Color - Yellow

a year ago

2

2

Solved

Leaves curl up and yellowing Beginner question, as usual (first time growing anything in my life tbh). My 2 plants don't look too healthy, especially one of them. Leaves curl up and yellowing (or not, I am not sure). What am I missing? Thanks!

Leaves. Curl up

Leaves. Color - Yellow

a year ago

2

2

Solved

Burned leaves.Is this heat stress or nutrition related

Leaves. Edges burnt

Leaves. Curl up

Leaves. Color - Yellow

a year ago

7

6

Solved

What problems do I have? Looks like over-fertilization, but nutrient solution and runoff have the same ppm. Ph 6.1-6.2 Tapwater (280ppm) - 4ml/l Hesi Bloom + 1ml Phosphor Plus + 0,3ml Ph- Biobizz CalMag 2ml/l in addition to the last watering. 05/07 - 3L PH6.5 493ppm - runoff PH 6.2 550ppm 05/11 - 3L PH6.15 750ppm - runoff PH6.1 750ppm 05/15 - 3L PH6.66 802ppm - runoff ph6.15 812ppm THK YOU :)

Buds. Not fattening

Leaves. Color - Yellow

Plant. Too short

a year ago

1

1

Solved

Help with deficiency What kind of deficiency i am facing here? The plant is Royal Jack auto in his 6th week from seed. I have been feeding nutrients from BioBizz based on 1/4 of their given scheme. Watering with 3L whenever the pot feels light (every 2-3 days)

Leaves. Color - Yellow

a year ago

2

Solved

I guess deficiency of ?? Leaves got sharpened also.Hi there, 2 plants of bluedream auto. One of them 18days and the other one 22days old. There are some yellow marks on the leaves. Can you help me? Is there N or Mg deficiency or another problem? I watered yesterday when the lights turned off. Thanks.

Leaves. Curl down

Leaves. Color - Yellow

Setup. Strain - Autoflowering

a year ago

1

2

Solved

Upper leaves are yellow and not smooth I noticed leaves on top are closing and today are yellowish. Older plant aren’t stretching more, I thought it’s too much light or too hot but it’s kinda weird because light are at 40cm from longer plant and 50 from smaller, temperature are max 26C. So, it’s normal?

Leaves. Veins - yellow between

Leaves. Color - Yellow

a year ago

3