The Grow Awards 2026 🏆

Back to Grow Questions

Deadly Leaves

Ambossstarted grow question 1y ago

Start Week 9 … is this a Problem or normal?

Amboss

Amboss

Amboss

Amboss

Amboss

Solved

Leaves. Color - Black or grey

likes

FogponicCultanswered grow question 1y ago

If week 9 of flower this should be part of plants natural process of fading. Fan leaf on the second picture looks like there has been a HR (hypersensitiv Reaktion) going on. Nothing to really worry about, could plug it off just to make sure. Gotta say that she already looked quite pale in week 6/7 should consider give her full feedings next time with a base nutrient. Only seeing additives in your schedule. During week 4-7 you want to push your plants giving them all building blocks she needs to build up mass.

likes

Complain

Selected By The Grower

Similar Grow Questions

Solved

lovely_neighbours

Brown black spot crispy edges I need help! Northern Light has Reddish brown spots turning dark-gray and crispy dark edges on the top leaves! It looks like a different issue from week 6 where gray spots appeared on the bottom leaves? Any ideas? Thanks

Leaves. Edges burnt

Leaves. Color - Dark-brown

Leaves. Color - Black or grey

4y ago

2

2

Solved

What is....?Hello. Please help me identify the problem ... today the 8th week of vega ended, and some kind of illness began.(((

Leaves. Color - Black or grey

5y ago

4

3

Solved

First time grower in soil - Plant problem I am a first time grower in soil. This plant is an autoflower and is 25 days into flowering. Can someone please help diagnose this? All the leaves are starting to turn yellow as well.

Leaves. Color - Pale

Leaves. Color - Black or grey

3y ago

5

3

Solved

Leafs on top turning slightly yellow and getting black spots Hi fellow growers, any idea on what's happening to this plants? All three pictures are different plants and it is spreading super fast. One plant in tent doesn't show any of the symptoms. I already flushed them and gave them a light nutrient solution with PH 6,2

Leaves. Color - Black or grey

9mo ago

4

5

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

Dark tips it seems to me that the tips of the leaves have a very dark color, it looks like an excess of nitrogen but in three weeks I have never fertilized and the only additions to my biobizz light mix are a sprinkling of guano kalong and 10% of worm humus biobizz.

Leaves. Color - Dark-purple

Leaves. Color - Black or grey

5y ago

4

3

Solved

Demande de diagnostic Bonjour, je suis actuellement en semaine 7, mon problème dure depuis la semaine 5 et je n'arrive pas à l'identifier... Quelqu'un à déjà eu un problème comme celui la?

Leaves. Color - Dark-brown

Leaves. Color - Black or grey

Feeding. Deficiences

4y ago

2

2

Solved

PH issue ?Hi guys! Could you please advise what is the problem with my Chempie and how to deal with this issue ?

Leaves. Color - Dark-brown

Leaves. Color - Black or grey

Plant. Stem - Red or purple

5y ago

3

2

Solved

What deficiency it can be?what deficiency it can be? its start from upper fun leaves

Leaves. Color - Black or grey

6y ago

2

2

Solved

Black spots?Is this a deficiency, nutrient burn, or disease, growing in MG soil, recovering from overwatering as well.

Leaves. Color - Dark-brown

Leaves. Color - Black or grey

5y ago

1

1

Solved

I keep loosing leaves to some sort of nasty necrosis. It affects leaves at all levels, small and big randomly. I had to remove a lot of dying foliage At first it looks like a asymmetrical spot of leaf starting to thin out to lighter color then tissue dries and turn black. I have high runoff EC3.3 and I blame Easy boost pellets because I only add rootjuice 1ml/L and sugar royal 0.5ml/L to my water. What is it and how I fix it?

Leaves. Tips - Die

Leaves. Color - Black or grey

Feeding. Deficiences

1y ago

5

5

Solved

what cause it，Is it normal?

Leaves. Color - Yellow

Leaves. Color - Dark-brown

Leaves. Color - Black or grey

5y ago

2

5

Solved

Leaves Shall i cut them leaves?

Leaves. Color - Black or grey

Leaves. Other

5y ago

2

2

Solved

Popped up around last week (week 4, monday). Prior to week 4, i had been watering with tap water, which in my area is pretty hard.(7.8+ pH) Been correcting pH to 6.8 with each watering since. (2 waterings since then.) Should i just continue feeding 6.8 pH water or add cal-mag?

Leaves. Color - Black or grey

7y ago

2

4

Solved

bad leaves Some leaves in a bad looking don't know why, i think is overfeed or smthn what do you think? them are on the middle of the 5th week of flowering

Leaves. Color - Yellow

Leaves. Color - Black or grey

5y ago

2

2

Solved

What could this be?I have no idea what this could be! It came in one night and affected several sun sails. Pnly small black dots. The environment has not changed. Continuous temperatures and a relative humidity of 40%

Leaves. Color - Black or grey

6y ago

2

2

Solved

Hey brothers and sisters ! This is my first grow so IM little out of this but still to get some good results with latte yield (Im hoping) So my setup is -4quick ones 2x190w led panels from dutch passion (so they should ne pretty high quality i hope ! I would apreciate All help

Leaves. Color - Black or grey

7y ago

1

Solved

Bud leaves turned black Top leaves turned brown overnight, That day I did come home to a disturbing temp off 31oC . It’s the black Mini leaves in buds that are worrying me more. lights came on accidentally for two hours so gave her 16hrs dark and back to 12/12 This may have contributed.

Leaves. Color - Black or grey

6y ago

1

Solved

Leaves are getting dark Leaves are getting a little dark and cotyledon seems a little sad. I suspect it is caused by not watering her enough (i was only spraying her with water the first 4days) Any advice?😀

Leaves. Color - Dark-purple

Leaves. Color - Black or grey

5y ago

1

1

Solved

Leaves turning funny Hello can anybody please tell me what this is and the cause plese for the leaves to be discoloured and dying ogf

Leaves. Color - Black or grey

2y ago

1

1