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

Nitrogen toxicity?

RallyAutosstarted grow question 4 years ago

Are these dying leaves a result of the nitrogen toxicity or something else? Thanks for all your help!

RallyAutos

Solved

Leaves. Other

likes

The8thChevronanswered grow question 4 years ago

Could be really bad light stress... My guess would be that a high PK nute has locked out calmag and other micronutrients. If you're using a booster, roll it back a bit. As always, check your pH and EC going in and coming out.

1 like

Complain

Selected By The Grower

Fruitgroweranswered grow question 4 years ago

I had this before and although not entirely sure I put it down to a pk overdose. N Overdose looks very different - dark green claws.

likes

Complain

Similar Grow Questions

Solved

Deficiency and heat Getting more leaf issues after weak nute flush and heat issues this week. I think cal mag and potassium deficiency. Looking for confirmation and suggestions.

Leaves. Curl up

Leaves. Other

5 years ago

2

2

Solved

Alien leaf?The strain is Zkittlez auto from the Seedsman. I got this seed about 2 months ago. She looks healthy yet this leaf.....Does any see this before? I have 3 more plants that use the same setup and all others are looking good. So I don't think this is caused by bug/nutrient/light/PH

Leaves. Other

5 years ago

2

1

Solved

Summer is super warm and not windy. I have a humidifier, i am foliar spraying her with aloe vera and liquid kelp but unfortunately the 3rd node leaves are already burnt. How can i make sure the leaves will still help her going through the mainlining training stress properly?

Leaves. Tips - Burnt

Leaves. Other

Techniques. Main-lining

5 years ago

2

2

Solved

Weird shaped leaf, bug?Please help, I have noticed today on a leaf some sort of weird shaping. Could that be some sort of a bug. The tent is very well sealed and is in a room in the house upstairs. Thanks in advance

Leaves. Other

5 years ago

4

4

Solved

Hello guys, my 2nd grow... But seems like I have problem with this one... What u guys think?

Leaves. Other

5 years ago

5

4

Solved

Nutrient deficiency or nutrient burn not sure Nutrient deficiency or burn, at the bottom of the plant

Leaves. Color - Yellow

Leaves. Other

5 years ago

2

4

Solved

problems with leaves Hi, friends! I have problems with two leaves. Tell me, who has experience, what can it be? Disease, pests or some kind of mechanical damage? The growth feels good, it grows, I don't see any more problems, only these two leaves bother me. the last three photos labeled "Problems "

Leaves. Other

5 years ago

1

1

Solved

looks ok? fourth day looks ok? fourth day

Leaves. Other

Other. Other

Plant. Other

5 years ago

3

5

Solved

Será un problema con el pH del agua?Hola a todos, espero que estén bien, tengo la siguiente consulta; esta mañana detecté unas manchas en las hojas de esta única Tutankhamon de pyramid of seeds. No tengo seguridad si las manchas están asociadas a un problema de pH, favor comunidad ayúdenme con este caso 🙏🏽🙏🙏

Leaves. Other

Other. General questions

5 years ago

3

2

Solved

Leaf issues. Lockout? Need to Flush??Leaf issues started showing up in 2 of 3 plants, progressing fast. Soil runoff tests have been v. high (2000ppm+) so we're assuming it's a lockout issue. We watered 1 day ago, with 200ppm solution so pots are still very wet. Better to let them dry out a bit or flush right away?

Leaves. Other

Feeding. Deficiences

5 years ago

4

2

Solved

LST leaves on ground??I know it's not ideal but will this be ok with the leaves on the ground?

Leaves. Other

5 years ago

1

Solved

Leaf margin burnt or bugs?Anyone seen this before? The leaf margins look burnt or perhaps bugs?

Leaves. Other

5 years ago

3

4

Solved

Slight accident last night to one of the cookies. Me and my thunder fingers pretty much snapped the top off while trying to support her. Is it game over for her? Looks like a clean break and she's still standing. Will she grow asif I topped her on purpose?

Leaves. Other

5 years ago

5

6

Solved

Leaves. Other

5 years ago

2

Solved

Touching buds while drying Does touching the buds at all while they’re drying reduce potency? I’ve been checking them daily and touch the odd one from time to time. Should I just leave them alone and focus on snapping a stem to determine if they’re dry enough?

Leaves. Other

5 years ago

3

3

Solved

Weired shape leaves Why my plant having weired shape of leaves? It ok to let the leaves or have to cut?

Leaves. Other

5 years ago

3

3

Solved

Pest or some nutrients deficiency?Hi beautiful people. What would you say about those tiny holes in the leaves? Pest, if yes, which kind (visually, I see nothing) and how could I treat it while the plant is already flowering? Some kind of nutrient deficiency? Thanks in advance for your help 🙂

Leaves. Other

5 years ago

1

1

Solved

GranddaddyTurtle

I'm Beginner pls teach me How to create the monster ? I think it grow up too slow . Light time 24hr or 20hr is better ?

Leaves. Other

5 years ago

2

2

Solved

Light stress?Is this light stress? (Spiked edges) If not, what could it be?

Leaves. Other

5 years ago

4

Solved

No Leaves There are no leaves on my 5 days plants

Leaves. Other

5 years ago

2

1