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

What's wrong with these 2???

PersianGreenthumbstarted grow question 5y ago

What's wrong with these 2???

PersianGreenthumb

Open

Leaves. Dropping off

Leaves. Color - Yellow

likes

Answer

MrBlocc420answered grow question 5y ago

I will need more information about your grow but it looks like your having a potassium deficiency. Sometimes the first symptoms of a cannabis potassium deficiency look a lot like nutrient burn. One difference is the edges of the leaves will also start turning brown, where nutrient burn usually only affects the tips. And unlike with nutrient burn the leaves of a potassium deficiency turn yellow in the margins, especially near the burn edges. Hope that helps good luck to you 👌🏾

likes

Complain

Similar Grow Questions

Solved

Botton leaves are turning yellow then fading away Some bottom leaves of my three plants are turning yellow, it looks to me that they don't have enough nitrogen. I have tried to double biobizz nutriment the last two times I have watered them but it doens't seems to make any difference. What can cause this issue ? Thank you

Leaves. Color - Yellow

3y ago

8

6

Solved

Puntas de las hojas amarillas, otras en garra y otras quemadas, que puede ser? Las plantas están en la 5ta semanita de crecimiento y ya pase a 12/12!!Ayer regué mis plantas con los fertilizantes grotek colocando exactamente lo que me muestra la tabla en crecimiento y hoy mis plantas amanecieron así, no sé si es por el calefactor que tiene en el medio o por el monster grow que aporta demasiado nitrógeno. Que pueden tener??

Leaves. Color - Yellow

Other. General questions

Plant. Other

3y 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. Deficiences

3y ago

6

Solved

Does anyone one know the deficiency causing the leaves to yellow in this fashion?

Leaves. Curl down

Leaves. Veins - yellow between

Leaves. Color - Yellow

3y ago

1

1

Solved

Leaf yellowing I'm not sure what's going on.my leaves are yellowing but still green.they are green then kind of have a wierd fade to them

Leaves. Color - Yellow

3y ago

3

3

Solved

Yellow leaves Hello it is day 36,i had pH issues but i corrected it to 6,5 but the leaves are still yellowing .I currently use canna nutrients, Flores, boost, ryzotonic and canazym. I use tap water and I'm growing in a soiles medium,(coco, peat moss and perlite. Thx

Leaves. Tips - Burnt

Leaves. Color - Yellow

3y ago

3

3

Solved

Should I harvest in 2-3 weeks ?Hey, do you think my plants might be ready in two weeks ? They're autos in 7th week of their life. I know that 9 weeks is ok for most, but these should take approx. 11 weeks. Do you think one more week of feeding, then flush would be appropriate ? Trichomes are mostly milky white

Buds. Other

Leaves. Color - Yellow

Other. Other

2y ago

1

3

Solved

Late flower issues- chop early?Week 8 of flower (haven't been best at keeping up with diary). Poor girl is deteriorating rapidly but I don't know why. Too late to fix, but too early for ideal harvest. Should I just let her ride or chop early and try to salvage what I can?

Leaves. Dropping off

Leaves. Color - Yellow

2y ago

2

1

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

Need help! over watered/ high sodium buildup ? Or wtf is this plants look sick 🤕 need help ... It’s day 35 , few days ago when I noticed burnt tips I ran 30% runoff with pure RO on 2plants one was ec 0.7 run off and one 1.4 ec so I bring him down to 0.8 and the rest I didn’t wash with plain RO ... And gave them a feed 0.7ec,they all 👀 bad

Leaves. Dropping off

Leaves. Color - Yellow

5y ago

8

4

Solved

Flowering week 3.75 Need help and cure? Leaves are yellowing maybe it needs feed again but feed her a week ago front left and front right are doing the same thing there all clones from same plant and the two rear are the same strain but are happy asf.just not medium size but small. Add maple sugar?

Leaves. Color - Yellow

4y ago

2

3

Solved

Proplems with leaves hi i got a question my plants show yellow leaves or damaged tips anyone knows whats going on? Lamp ts-1000 150w on 45% in the 4 week and only 2 feedings till now

Leaves. Tips - Burnt

Leaves. Color - Yellow

6mo ago

4

5

Solved

Is this a Deficiency or Normal Flowering.Flower 4 weeks. I have noticed thru flower approx 5 - 10 leaves/week which eventually brown, shrivel up, and fall off. Leaves seem dark and the stems are slightly reddish purple but potassium test on soil shows high potassium. Some burnt tips and claw down on upper leaves. PH6.0

Leaves. Tips - Burnt

Leaves. Curl down

Leaves. Color - Yellow

5y ago

1

Solved

Leaf Deficiency What’s going on with my leaves? Looks like the start of a deficiency.

Leaves. Curl up

Leaves. Color - Yellow

Feeding. Deficiences

4y ago

1

1

Solved

Splotches on leaves What is this discoloration on my plant? Ph issue? Low phosphorus? Don't see any evidence of bugs... Color isnt as green as the plant still in veg.

Leaves. Color - Yellow

5y ago

3

1

Solved

Yellow burnt ends at week 1 make me a little nervous. Is there anyone with similar experience, any ideas, suggestions etc?

Leaves. Curl down

Leaves. Color - Yellow

5y ago

1

1

Solved

Gorilla Cookie Problem Ich growe jetzt seit acht Wochen Pflanzen. Einige haben gelbliche Blätter, andere gelb-lila Blätter und viele Blätter haben braune Punkte. Ich weiß nicht, was die Probleme sind. Ich benutze Advanced Nutrients Grow, Bloom und Micro. Grow: 1,5ml/L und Bloom: 3ml/L auf 3L Wasser

Leaves. Color - Yellow

Leaves. Color - Dark-purple

Leaves. Color - Mottling

4mo ago

15

7

Solved

My Royal Creamatic has the edges of their leaves pointed down, loosing soil and some yellowing in the older leaves. I've tried to use google but there were many opinions about this. Have the feeling that I should just give ph water for now. Any ideias/advice? Thanks

Leaves. Curl down

Leaves. Color - Yellow

4y ago

2

2

Solved

If my ppm intake is about the same as my ppm runoff but my pH runoff is way lower than intake should I be worried? Or what should I do?If my ppm intake(705) is right about the same as my ppm runoff(790) but my pH intake(6.7) is off from my pH runoff(5.9) should I be worried or be trying to correct something or should it be fine? Humboldts Secret nutes, Glueberry Og Auto, rh48 temp74-76, advice appreciated.

Leaves. Color - Yellow

Setup. Strain - Autoflowering

Feeding. Deficiences

4y ago

1

3

Solved

Potential causes and fixes for magnesium deficiency My runoff EC and PH are normal and I am adding calmag to every feeding so not sure why I might have magnesium deficiencies. Aside from giving them just a calmag feeding and foliars, any tips on what I can do and why this is even happening?

Leaves. Color - Yellow

Feeding. Deficiences

Techniques. Main-lining

2y ago

4