The Grow Awards 2026 🏆

Back to Grow Questions

Leaves turning yellow

MissLemonstarted grow question 6y ago

Hello grower community, Plant is on 3rd week of flowering and big fan leaves started to to light yellow. Is it just Nitrogen deficiency or smthg esle? Looking forward to your recommendations.

MissLemon

MissLemon

MissLemon

Solved

Leaves. Color - Yellow

likes

SNoWfLaKe420answered grow question 6y ago

My guess is nitrogen deficiency supposedly you should feed veg nutes 1 or 2 weeks into flowering just a little and week it off kinda

1 like

Complain

Selected By The Grower

TimTheTerpMananswered grow question 6y ago

This can happen in flower. If the new growth is all looking good. And it doesn't seem to spread rapidly I wouldn't worry! Happy Harvesting!

2 likes

Complain

Similar Grow Questions

Solved

lovely_neighbours

leaves turning yellowish at fast speed leaves turning yellow-ish overral they are discolorating after last feeding on a very rapid rate last fed on 23 august, 3 days ago: fish mix 2ml/l bio grow 2ml/l top max 3ml/l bio heaven 4ml/l activera 4ml/l bio bloom 3ml/l calmag 1ml/l any idea on why / what to do next?

Leaves. Color - Yellow

4y ago

5

6

Solved

Could this be light burn?Could this be light burn? Only on top new leafs. Have not fed her any nutes yet. I did lower the light after I did LST by the height difference after bending her lower. Have raised the light back up again but just wanted to check what people thought. Thanks in advance

Leaves. Color - Yellow

6y ago

3

3

Solved

about leaves and growth glueberry auto leaves are growing in light yellowish colour and I'm a beginner please give me some remedy Regards

Leaves. Color - Yellow

5y ago

3

5

Solved

GanjaGartenZwerg

Mangel in der vegetativen Phase Meine pflanzen in Coco Perlite haben immer am Anfang eine Mangel den ich mir nicht erklä

Leaves. Color - Yellow

2y ago

2

2

Solved

Is this nitrogen deficiency or something else?Hello everyone! One of my plants has some fan leaves and new leaves yellowing at the bottom (and some are crispy). The plant is very bushy but from what I understand this could be nitrogen deficiency but wanted to check. The other plant is smaller and doesn't have yellow leaves

Leaves. Color - Yellow

5y ago

1

1

Solved

The leaves are turning yellow what could it be Not sure what this plant has there is total of a 3 of this critical + plants but only one of them is showing the symptoms on the Leafs it is not only in older growth that is happening its all around the plant not sure what could it be.

Leaves. Color - Yellow

6y ago

3

3

Solved

Nutrient deficiency Is this any kind of nutrient deficiencies?

Leaves. Color - Yellow

5y ago

1

Solved

Yellow leaves at lower part of plant Hey! Two of my bigger plants have some issue. The lower leaves turn yellow really fast and fall off. The others are ok but have a really small nute burn. What is this?

Leaves. Dropping off

Leaves. Color - Yellow

5y ago

1

1

Solved

Folhas queimadas no centro (Ajuda)Olá a todos, tenho 6 garlic cookies em período de floração, estou na 6 semana faltam mais 2/4 semana para terminar. 2 delas começaram a demonstrar as folhas queimadas perto do centro. Alguém me sabe ajudar?

Leaves. Color - Yellow

4mo ago

4

4

Solved

Yellowing leafs.Hello guys, my plant is now on the final weeks of flowering, buds are getting bigger and the leafs are getting yellow pretty fast. It's this last thing that scares me a little, I know it's completely normal due to flowering but I wanted to ear your thoughts about it. Thank you 😊

Leaves. Color - Yellow

5y ago

2

2

Solved

Hi, I need help, some leaves turned yellower than others, and the lower ones began to die off, did I notice this 2 days ago?The leaves have become yellower than others, and the lower ones are dying off, is it 2 days ago? What is it and how to fix it? First grow,Speed+, air pot12L. coconut+soil+perlite, from seed 8w, flowering 3w, GHE FLora every second watering,50cm, LED 100w 35cm+,h50-65%, t23-28C.

Leaves. Color - Yellow

4y ago

2

2

Solved

leaves what to do if it does not improve?

Leaves. Color - Yellow

Leaves. Color - Pale

4y ago

3

3

Solved

Yellow leafs purple stem (not genetics)Three of the older leafs are turning yellow with purple/brown stains in them, also their stems turned purple with no other stems being purple in the plant. Is this phosphorus deficiency or nitrogen deficiency? Already top dressed with worm castings and bat guano high on P and k.

Leaves. Color - Yellow

5y ago

4

4

Solved

PLEASE HELP ME, my frozen black cherry is drying, what could I do?It’s in the early third week of the flowering phase, but I don’t know some lower branches are drying out day by day, the first three photos shows what I mean, the last one is of the higher branches. Haven't watered for a day, but I don't think its a overwatering problem.

Leaves. Curl down

Leaves. Color - Yellow

Other. Other

2y ago

2

3

Solved

(Mimosa auto in coco) Yellowing tips on new growth The top of the plant (new growth) is showing some unhealthy signs. The tips of the leaves are yellow and there are lighter green stripes on the leaves themselves. I googled and the signs match to a number of deficiencies, but i lack the experience to diagnose correctly. Plz help

Leaves. Tips - Burnt

Leaves. Color - Yellow

3y ago

2

3

Solved

Magnesium deficiency?I think I may have an early deficiency of magnesium? I'm totally guessing here. Not much experience. Seems to slowly be getting more pronounced. First water since transplant to FFOF was only pure RO. Thinking maybe I should added cal-mag?

Leaves. Color - Yellow

5y ago

5

3

Solved

Nutrient burn, magnesium def, light burn? Leaf tip yellowing but not turning brown/curling 4 week since planted autoflower, both started getting this at the same time. First time running autos, grown in FF Happy Frog soil. Soil was used for 3 weeks in a different grow so nutrients may be needed. Light burn, mag deficiency? Have only used ph 6.2-6.5 water, no nutrients.

Leaves. Color - Yellow

4y ago

1

1

Solved

Newbie:Now in three weeks: the lower leaves start to turn yellow quite fast and it is moving to the leaves above it already. One disformed leave as well. Growth seems to slow down a bit. This is fresh fertilised potting soil and I am pretty sure I am not overwatering. Any ideas?

Leaves. Color - Yellow

5y ago

3

Solved

Verfärbung und Verformung der Blätter.Seit einiger Zeit zeigen meine Pflanzen ein paar Verfärbungen und Verformungen an Ihren Blättern. Ist das Schlimm und falls Ja was kann ich da geben tun?

Leaves. Curl down

Leaves. Color - Yellow

Leaves. Color - Dark-brown

4y ago

1

4

Solved

Is it light burn?Could this be from light burn or is it something else? Moved my light 15 cm higher for now. Some of the branches are showing purple color. That means stress for the plant right?!

Leaves. Color - Yellow

3y ago

2

4