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

Organic potassium?

Bootlegelkkstarted grow question 3y ago

Best way to add potassium to a organic grow

Open

Leaves. Other

likes

Answer

GreenLover99answered grow question 3y ago

Langbeinite is an organic amendment that has potassium, magnesium and sulfur. Its a naturally mined crystalline mineral that does not alter the ph.

likes

Complain

Dingle_Dangleanswered grow question 3y ago

banana peel?

likes

Complain

Similar Grow Questions

Solved

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

Leaves. Color - Yellow

Leaves. Other

5y ago

2

4

Solved

southerngrower2020

Minor damage to a few leaves found today - what is it?I am trying to determine the cause of damage to a few leaves that was observed this week. It may be two different problems. On a few leaves, I see brown spots which may have originally been white. On another 2 leaves, I see a burn hole through the leaves with brown edges.

Leaves. White powder

Leaves. Other

Other. Bugs

6y ago

2

2

Solved

Please check my latest photos above. Because of taco leaves/curled, I turned off the fan last night and also raised the LED to about 16cm above the plant. When I checked in the morning. All the leaves on both my plants was raised up and still had curled sides.

Leaves. Other

7y ago

2

1

Solved

Slow growth / malformed leaves This is my second grow and 1st attempt at hydroponics. This is the 20th day and the symptom is very slow growth and the leaves are dark green as well as they're malformed. I am using tap water that has been filtered. I am using a total of 4TSP / 20ml of Nutrient 500ppm

Leaves. Other

5y ago

1

2

Solved

Please, see the leafs, from one side they open and from second side they are stick? I have second the same plant, the same day of seeding, and is from both side open, also is bigger for about 40% from another.

Leaves. Other

5y ago

1

3

Solved

I have brown spots on some leaves lower down on plant. Have looked it up on internet and think it calcium deficiency. But I use Cal Mag. Could it be something else? I have picture up on diary.

Leaves. Other

7y ago

1

2

Solved

what can it be? holes...what could be the reason for these holes?

Leaves. Other

5y ago

1

Solved

White tips The tips of my first set of tru leafs are white. Lik should I be worried?? I’ve gave them just water after their first nutrient fed.

Leaves. Other

3y ago

4

Solved

What the heck is this!?Hi A fellow grower just sent me pics of his girls. They don't look to good. He is trying to find out what's wrong with the leaves.. PLEASE HELP!

Leaves. Other

Other. Bugs

Plant. Other

4y ago

5

5

Solved

What is this rust discoloration on leaves, and how can I stop it?Does anyone happen to know what is causing this rust colored discoloration on fan leaves? It starts on bottom leaves, and moves up. Also seeing yellowing on leaves, and not sure if its pest issue, light issue, deficiency, or watering concern. Super nervous plants are dying🙁

Leaves. Tips - Die

Leaves. Color - Yellow

Leaves. Other

4y ago

7

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

5y ago

1

1

Solved

cannabis_connoisseur_circle

Please Help Am I facing Caterpillars, Inchworms or Cabbage Loopers?

Leaves. Other

Other. Bugs

6y ago

3

4

Solved

Yellowish leaves with brown spot.Why are my leaves starting to show brown spots and also getting a yellowish tint? I did recently lower the light. Could this be light burn?

Leaves. Other

4y ago

1

3

Solved

White spots and brown dots on the leaves I began to notice some white dots on the leaves, and also some brown dots under them. What are they? Are they mites? If they are mites, how can i get rid of them? Is there any natural ways, not evolving a lot of chimicals?

Leaves. Other

5y ago

1

1

Solved

Leaf looks eaten or something!!?Hello Guys, just seen this thing in PGK, its looks insects did this,pls advise also i have seen a one insect under the leaf week a ago, thanks

Leaves. Other

3y ago

2

2

Solved

problem I can't figure out what's wrong with the leaves?

Leaves. Other

3y ago

6

3

Solved

Weird or no?Is this seedling looking weird? Some edges of the leaves are like sticking up. Then, I look to see what I thought had been a chewed on leaf. After taking a closer look though, i think it just grew in like that. All of the other seedlings are looking really good

Leaves. Curl up

Leaves. Other

3y ago

5

5

Solved

Vanilla Kush Mutant - Is it ok?Day 13 of this crazy little mutant. What do you think about her? Is she in good shape? I'm a newbie in mutation topics. Thank you!

Leaves. Other

5y ago

4

4

Solved

woolygrower8280

any idea of the cause?I'm starting to get these weird spots on some of my leaves and the tips are getting a bit brittle also I have the impression the leaves are kind of droopy any idea of the cause

Leaves. Other

5y ago

1

2

Solved

White tips on seedlings leaves Hey growers ! Can I get someone's input on what would cause the tips of one of my seedlings first pointed leaves to be white ? It's only one plant out of 4 but If it's something I need to correct I'd like to do it early , thanks in advance! Happy growing :)

Leaves. Other

3y ago

3

2