The Grow Awards 2026 🏆

Back to Grow Questions

Problems with deficiency, can somebody help me?

Gro420started grow question 4y ago

Problems with deficiency, can somebody help me?

Gro420

Solved

Leaves. Edges burnt

likes

Hashyanswered grow question 4y ago

It's either calcium or potassium deficiency. You probably have the correct amounts so I would try altering your ph a little. Try ph 6.3. Also check your runoff ph to see if its still in range.

1 like

Complain

Selected By The Grower

Hashyanswered grow question 4y ago

That link to the chart herbaledu has put on is worth saving. Got some good info on it.

likes

Complain

HerbalEduanswered grow question 4y ago

yep as Hashy said look like either Calcium and/or potassium deficiencies. could just be a phenotype more sensitive to feeding than the others also, this happen once in a while. https://loudclouds.co/wp-content/uploads/2016/07/marijuana-deficiency-chart-jorge-cervantes.jpg

likes

Complain

Similar Grow Questions

Solved

Please help me over my first grow I want some help over my first grow, i am on my end of 1st week of veg and there is some leaf burn issue with the blue diesel lower leaves getting yellow please help before she dies

Leaves. Edges burnt

Leaves. Color - Yellow

6y ago

5

5

Solved

Eldritchscotchtober

Harvesting a struggling plant or just letting it fight Can she be saved or just flush her and harvest what I can? She doesn't appear to be happy. Has some CBD genetics so the lack of trichomes don't worry me. Rest of my garden is fading as well. Flushed em last feeding and they didn't seem to like it.

Buds. Not fattening

Leaves. Edges burnt

Leaves. Color - Yellow

5y ago

2

2

Solved

Brown spot on leaves I'm experincing a bad situation. Leaves are becoming brown in the margins and I can't understant exactly the cause. Probably there are more causes, some phosphorus deficiency caused by low temperature but I'm not sure that's the only diagnosis. Someone could help me?

Leaves. Edges burnt

Leaves. Tips - Burnt

Leaves. Color - Dark-brown

5y ago

2

2

Solved

I’m at week 6 day 6 of flower on my ssh. I noticed some leaves turning yellow. I think it’s too early for them to show their fall colors as this is a 9-12 strain. My ph is always 6.4-6.8. My runoff ph is 6.6 always.I did move my lights down and just raised them. I’ll post photos

Leaves. Edges burnt

7y ago

2

2

Solved

Some leaves from my OG turns, bronze color. No others symptoma. Maybe a nuts excess ?

Leaves. Edges burnt

7y ago

3

1

Solved

savethehumanseh

Is this light burn?I am pretty sure it is led light scald but just thought id try to verify. I have a new 650w Hortibloom light bar and have been running it between 400w and 650w at the top of the tent. I'm guessing 650w, even at the top... is too much? They are in soil, and I'm using gaia green

Leaves. Edges burnt

5y ago

1

2

Solved

Hi guys, my plant is locked, I think it's a nute burn, how can I restart the plant flowering? I also have the Flawless Finish product of Advanced Nutrients, can I use it to flush and restore back the flowering?

Buds. Not fattening

Leaves. Edges burnt

5y ago

1

1

Solved

Nutrient lock out?Well watered my plants with great value drinking water. Ph 4.11. Didn't check ph until week 3. Currently upping it to 6.5 after I found the issue. Does this look like nutrient lock out? They were in root Riot starter plugs. And I fed the some clonex and great white microbs.

Leaves. Edges burnt

Leaves. Color - Yellow

Feeding. Other

4y ago

5

3

Solved

A bunch of different leaf symptoms appeared over just a few hours, can you spot the issue in my detailed diaries and solve the mystery?Everything was well, until over just a few hours they developed all kinds of symptoms. I have 2 diaries here for the grow, the 2 called “Grow #2” and I am very detailed about what has been done day to day. So please have a look and see if you know what might be happening

Leaves. Edges burnt

Leaves. Color - Yellow

Leaves. Color - Mottling

3y ago

2

Solved

My plants are 70 days or 10 weeks old but due to I used low power led first they didn't grow too much in starting. Now I am using 80 W of LED. I wanna ask if you guys can look at them and tell if they are ready for flowing?

Leaves. Edges burnt

8y ago

2

Solved

Problema en mi cultivo Las hojas viejas se están arrugado y están de color verde muy oscuro. Y las hojas altas están presentando puntas y bordes amarillentos, quemadas y están en garra. Què puede ser y como solucionarlo

Leaves. Edges burnt

5y ago

1

4

Solved

Help! What is this?! Upper leaves turning yellow/brown but not the lower ones. Light burn?

Leaves. Edges burnt

Leaves. Color - Yellow

Leaves. Color - Dark-brown

2y ago

1

1

Solved

Burned leaves.Is this heat stress or nutrition related

Leaves. Edges burnt

Leaves. Curl up

Leaves. Color - Yellow

1y ago

7

6

Solved

Yellow edge with brown spots on fan leaves I am wondering if anyone could help me figure out what is going on here. She’s been healthy all grow, but in the last week has started showing the weird yellowing/browning on a few leaves. The temps, nutes and light haven’t changed really. Anyone have any idea what this could be?

Leaves. Edges burnt

Leaves. Color - Yellow

Other. General questions

5y ago

1

2

Solved

Belgiums_basement_budz

Leafs are dry at the edge What deficiencies can cause this leaf problem Ph feed is 6.8..she is in flower at the moment She is an outdoor plant

Leaves. Edges burnt

5y ago

3

3

Solved

Is this heat stress?Hello growmies, unfortunately Queen Citronella has taken ill. I think it is heat stress, but I wanted a second opinion so here I am.

Leaves. Edges burnt

3y ago

19

11

Solved

Another bump in the road!Few leaves dying and others turning pruple/brown! What did I do?! She did run about 5 days of low drip pHed distilled water without nutrients while I was on a trip 2 weekends ago.

Leaves. Edges burnt

Leaves. Color - Dark-purple

4y ago

4

8

Solved

Can somebody take a look at the pics of the leaves i have taken and tell me what they think is wrong with the plant? I’m feeding tap water Ph’d to 6.3 and only fed nutes once about a week ago and have just fed water since.

Leaves. Edges burnt

7y ago

3

3

Solved

I was making reckless mistake for exposing the plant into too much light causing burnt tips during seedling stage going through day 5. Light intensity was at 75% with the height of 28 inches.Any recommend on recovering these baby ASAP ?

Leaves. Edges burnt

Leaves. Tips - Burnt

Leaves. Curl up

4y ago

2

3

Solved

EmeraldLakeCannabis

Progressive yellowing on older fan leaves ~F14-F35 Hi, past two weeks or so I've been noticing progressive chlorosis and eventually some necrosis starting from the edges of the leaves and working inwards. Photos of this can be found in Week 18 Flower denoted by "For grow question #x 12/1" Humidity low, could be related? thx

Leaves. Edges burnt

Leaves. Color - Yellow

Leaves. Color - Mottling

5y ago

2