The Grow Awards 2026 🏆

Back to Grow Questions

Whats wrong?

RFarm21started grow question 4y ago

What is this? only appears on some older leaves

RFarm21

RFarm21

Solved

Leaves. Other

likes

HolyHerbsanswered grow question 4y ago

P lockout. Possibilities are wrong pH, cold or just too less P nutrition. If it's not the pH or cold, just give some more bloom nutes would my advice be.

1 like

Complain

Selected By The Grower

ChitownCannaChicaanswered grow question 4y ago

I call the lowers snack leaves. I wouldn’t worry about them right now early in flower—- just keep up the flower nutes

1 like

Complain

Similar Grow Questions

Solved

Should i remove leaves beneath the top?Hello, me again with another question. So I just topped the plant, now i was wondering if i should remove the growth beneath the upper set of leaves. I've seen videos explaining why you should do it and why you shouldn't. Whats your experience? Appreciate all the help so far!

Leaves. Other

8mo ago

2

3

Solved

Leave issue again :( can somebody help pls?Does somebody know why this happens and how I can stop it? I had the same issue last grow and this will become worse. Some data: humidity 55%, water temp 21 °C, tent temp day 27 °C and at night 21 °C, EC lowered to 0.7 (befor 1), Ph 5.7 to 6. I grow in a nft system with 100L.

Leaves. Other

Plant. Other

Feeding. Deficiences

4y ago

4

7

Solved

Fungus?Hi, whatever is on the leaves seems to be spreading. I tried not watering it for a few days like advised but it’s getting worse. Any ideas?

Leaves. Other

6y ago

1

1

Solved

Yellow tips, light green leaves, red stems.Hello, I had problem with yellow tips of my plants, I've been told to lower Ph and minimize nutes. I've watered her with pure water with low Ph but now she had light green leaves mostly on top, and really red stems. I think she may need more nutes, I was never giving a lot.

Leaves. Other

5y ago

1

1

Solved

Cucumbersinmybackpack

Mutations??What causes mutation? Is it the strains? Will silica do this to the plants? I'm interested to know exactly why this happens or if anything triggers it.

Leaves. Other

4y ago

7

6

Solved

Weird leaves stains What is this? Leaves got brown but they aren't dry, idk why.

Leaves. Edges burnt

Leaves. Other

6y ago

2

Solved

Blätter zeigen Probleme!Was fehlt meinen Damen? Blütewoche 5 ! Habe zwei verschiedene Probleme mit den Blättern..

Leaves. Other

3y ago

1

4

Solved

Fused Cotyledon on Autoflower Fused cotyledon.. let it grow or bin it? Cheers!

Leaves. Other

5y ago

1

1

Solved

CommonCourtesy666

Leaf miners?Leaf miners? Any combative suggestions? Neem oil? Or the fox farm miticide?

Leaves. Other

4y ago

2

3

Solved

Bill_Lehmanowsky

I am looking for some advice on the yellow spots on the first set of real leaves. I just raised the light to 30 inches and turned it down from a quarter to an 1/8th Mars Hydro TSW 2000. Thank you for looking.

Leaves. Other

3y ago

4

5

Solved

Hello Yang got drooping younger leaves. iam not sure why. It is not overwatering. Its very dry at the moment only about 50 percent RH .Dont do anything different tho her. Any ideas?

Leaves. Other

7y ago

2

3

Solved

Leaf health Should I worry ? is this a deficiency, it can't be seen on the underside of the leaf,maybe From foliar spray ?

Leaves. Other

6y ago

2

2

Solved

Orange/Rust Spots on Leaves I keep getting these spots developing on my oldest mother, the MAC. She's probably rootbound, it's been about 4 months since she potted up. I need to keep her in a cup for space, will deficiency get better if I just trim about 50% roots and plant back in a cup with fresh soil?

Leaves. Color - Dark-brown

Leaves. Other

3y ago

2

Solved

Strange growth Hello, has anyone seen growth like this? Leaves aren’t looking quite right.. could be my medium is too hot (nutrition)? . I used different dirt this time.

Leaves. Other

5y ago

1

1

Solved

Jaygrow1020_autoking

Can anyone tell me what I'm doing wrong?

Leaves. Other

Other. Other

5y ago

2

3

Solved

Holes in leaves? Bugs?Just noticed some holes on a couple of leaves in my grow tent. Hope it's not some sort of bug. Any thoughts?

Leaves. Other

5y ago

3

3

Solved

Growing in Coco organically opinions? How is the microbe/enzyme life in coco? Should i feed each watering? With Runoff? How long does organice nutes take to breakdown? Currently adding Microbe/Enzyme additive to my feeding to help with organic nutes to break down?

Leaves. Other

8y ago

26

4

Solved

Tacos anyone!!Woke up today and some of the leaves are taco’s. What should I do?

Leaves. Other

4y ago

4

5

Solved

Leave looks like having been eat I need help to know why the leaves looks bad ?

Leaves. Other

6y ago

7

6

Solved

Rust and a few claws on leaves, thick dark green leaves Best way to easily solve a potassium problem, I think 🤔, also some leaves getting claws, it didn't get overwatered So it must be the soil which is too rich? It only happening with 1 out of 7 plants.

Leaves. Other

4y ago

4