Back to Grow Questions

Why Are Cannabis Leaves Turning Yellow?

Yamakouz_yuestarted grow question 5y ago

hello everyone. I have a problem with my plant. Ph6.2 ppm580. Everything is normal. The withered one is LSD-25 from fastbuds.Pineapple Express is very healthy,In the same environment.40 day pineapple express and 35 day LSD-25.

Yamakouz_yue

Yamakouz_yue

Yamakouz_yue

Yamakouz_yue

Open

Leaves. Color · Yellow

likes

Answer

Vladisradanswered grow question 5y ago

looks like iron deficiency from what i can tell https://www.growweedeasy.com/cannabis-plant-problems/iron-deficiency

likes

Complain

SpiderMiteanswered grow question 5y ago

Check your res temps. Might have root issues.

likes

Complain

Hashyanswered grow question 5y ago

So your dwc. Has your Ec been going down when you check and is your ph stable when you check. If the Ec has been rising then your plants not feeding if your Ec has been dropping then it's feeding and needs a stronger dose. Like I said earlier a diary really helps spot when and what the problem was or is.

likes

Complain

Yamakouz_yueanswered grow question 5y ago

diy dwc

likes

Complain

Hashyanswered grow question 5y ago

Are them leaves a bleached white colour. If so that could be the light. It would be better if you had a diary running.

1 like

Complain

InspireMeanswered grow question 5y ago

Is that your runoff ppm/PH?

1 like

Complain

Similar Grow Questions

Solved

Why do I have rapidly spreading yellow on my leaves?I have this yellow spreading on some of the larger leaves and it's moving super fast. Please help. I've done research and it says it's a deficiency, mostly likely cal/mag. I added that and it got worse, now I'm thinking nutrient lockout? The pH is fine. What do?!

Leaves. Color · Yellow

Leaves. Color · Pale

1y ago

1

8

Solved

Yelow leaf a deformed top Hi guays, Northern Lights - today i defoliated her. I found a yellow leaf on the bottom of her and main cola looks dry and deformed. I posted photo. Do you have some idea what's wrong. The rest of the plants looks healthy. The more photo it's in my diary (Wejder) Thank you:)

Leaves. Color · Yellow

5y ago

3

3

Solved

big_bro_is_bloomin

Yellowing sugar leaves?Does this yellowing on the sugar leaves look problematic? I know the end is near so I don’t want to do any damage this close to harvest. Think another week will be long enough? Vermiculite/Perlite/Soil @ 40-40-10% Lotus Bloom @ 1/2 dose (700ppm) 100w LED 14” above canopy

Leaves. Color · Yellow

2y ago

5

3

Solved

Hey, I've attached some photos of a couple of leaves here. Could it be a humidity issue?

Leaves. Color · Yellow

Leaves. Color · Dark-brown

6y ago

3

3

Solved

Nute lock-out?My plants appear to be a yellowish color. I am not sure why. I have tried correcting everything I could think of . Run off pH is consistently 5.8. Ppm/Ec is fine. Light is now at 28in/71cm above canopy only at 70% power. Temperature and humidity stay in great range. I don't know.

Leaves. Color · Yellow

5y ago

1

Solved

Papi_Chulo_Germany

What my plants need?Hey growmies. Since yesterday my plants noch look that healthy then before. Some leaves start to get brown points and changed to yellow colour. Someone can tell me what is the problem and how I can fix it ? … Show more

Leaves. Color · Yellow

2y ago

3

2

Solved

I'm entering week 7, what's happening?I'm entering week 7 from germination. I'm using a soil for herbs/lawns (pH 8) as an amendment—not ideal for cannabis. I'm testing it, but leaves look like this. I fertilize and already flushed. Using 1ml grow + 1.6ml bloom Biobizz in 500ml water (pot is 3.2L).

Leaves. Curl up

Leaves. Color · Yellow

Leaves. Color · Pale

1y ago

1

4

Solved

Yellowing leaves & tips curling down on 14th day. Coco / Autopot / Hesi / Mars Hydro fc-1500 Would gladly use some help with my first grow 🙏 2 main reasons come to mind after googling: 1. I overwatered thinking it's hard to do since I'm using the Air dome. 2. Too intense light. Was checking a lot of growers that actually grow 24/0 and went for it 75% 40cm.

Leaves. Color · Yellow

Setup. Strain · Autoflowering

Setup. Lighting

2y ago

9

5

Solved

Yellow baby leaves?the front Two Plants have stumped me with their yellow leaves (days 2 too 4) I don’t know what exactly happened during germination?? has defiantly slowed these girls down. Any suggestions comment below:)

Leaves. Color · Yellow

6y ago

3

2

Solved

Problema hojas caidas y amarillamiento DWC Plantula Good morning, I wanted to see if you could help me since I'm having this problem and I don't know the cause. pH = 5.6 / 5.7 EC = 560ppm to 620ppm DWC Temp = 21° C Indoor Temp = 24° C 5 Days … Show more

Leaves. Color · Yellow

6y ago

2

2

Solved

Help!!Help I've been in the hospital my husband's been watering but my plants are sick help what do we do?

Leaves. Edges burnt

Leaves. Color · Yellow

Feeding. Deficiencies

4y ago

1

6

Solved

Defoliate lack-of-water damaged leaves?Should I defoliate the remaining primarily yellow-brown, water stress damaged leaves on the hulkberry, or are they functioning and contributing to the growth of the plant and not harming it?

Leaves. Color · Yellow

3y ago

3

3

Solved

Is this yellowing normal? Probably because of LST?I am growing my plant with LST and some of the lower fan leaves have been moved down in the shadow. Is this the reason why those leaves are getting yellow and dry? All the rest of the leaves look very green and healthy by the way.

Leaves. Color · Yellow

Techniques. LST

6y ago

5

4

Solved

ImpatientGrower

The NL starts developing yellow leaves at the top of the plant. It started at the end of the leaves and it's developing. Any what deficiency (or is it overfeeding?) it might be ?

Leaves. Color · Yellow

3y ago

5

5

Solved

yellow leafs on one plant i have two plants, leafs on 2nd plant slowly go yellow, any ideas?

Leaves. Edges burnt

Leaves. Color · Yellow

6y ago

3

3

Solved

Low level yellowing Should I be worried at such a late stage in the grow?

Leaves. Color · Yellow

6y ago

2

3

Solved

Leaves turning yellow from the bottom up My older plants leaves are turning yellow from the bottom up. Its probably a nitrogen deficiency I think, I read that its common for plants in late flower but this one just shot its first pistils. What would be the smartest thing to do to combat this? Thx Its only on 4 leaves rn

Leaves. Curl up

Leaves. Color · Yellow

Feeding. Deficiencies

6y ago

4

3

Solved

Is this nutrients Does this look like a nutrition problem? Grown in bio bizz light mix she's a zkittlez authaven't done grow diary yet so can't link she's just gone on to 1ml per l of bio grow and has always been cal.mag also used pirana and nevana from advanced nutrients any help would be awesome

Leaves. Color · Yellow

Leaves. Color · Mottling

Feeding. Deficiencies

4y ago

1

2

Solved

People heeelp! I have a diesel autoflower and its flowering 3 weeks. My leafes are turnung yellow but only ones nort on bud but those "free". I think its not N because i fed her same first 3 weeks. So heelp

Leaves. Color · Yellow

6y ago

1

3

Solved

Outdoor grow Heat wave in early flowering!Heat wave again:( What can i do ? In this situation? The upper leaves became lighter green but the edge of leaves didn’t cruel upwards yet. I put a fan and i will add another one because i think that clear plastice increases the temperature but i cant take it off for secu

Leaves. Color · Yellow

2y ago

6

5