Start My Diary
Start My Diary
Login
Start My Diary
Home
Diaries
Strains
Shorts
Questions
Contests
Growers
Seeds
Breeders
Nutrients
Equipment
Blog
Login
Sign Up
Following
Follow
Brands
&
Growers
to get updates
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
Back to Grow Questions
Help :)
JoshuaTreez
started grow question 4y ago
Is this potassium deficiency? Or nitrogen toxicity?
Solved
Leaves. Color - Yellow
likes
HighRoller909
answered grow question 4y ago
yeah both. Nitrogen excess can create potassium deficiency, bear in mind. Too much N will block usage of K
1 like
Complain
Selected By The Grower
Organoman
answered grow question 4y ago
I would go for potassium deficiency.
likes
Complain
Similar Grow Questions
Solved
Yesbananaz
Stunted growth. Yellow leafs and red/purple stems
H! My girlfriends auto plants don't look like much. Stunted growth in growphase, alot of yellow leafs way to early and red/purple stems in bloom. Small yield. 6 plants 17liter dirt pots Telos 10 pro led light, distance in bloom 60cm. 120cm*120cm tent. Biobizz grow, blom, topmax
Leaves. Color - Yellow
Leaves. Color - Red or pink
4y ago
1
4
Solved
kiffgras
nitrogen deficiency
Hi guys, my plant has a nitrogen deficiency, but I dont know how to fix it. The ph value is correct and I already gave her a lot of CalMag, but things doesnt get better. She already lost 4 leaves and the plant in general looks a lot brighter.
Week 6
Leaves. Color - Yellow
3y ago
7
13
Solved
Mnbuds
leaf diseases
Yellow and brown spots with leaves curling up, have flushed a bunch and got ppm and ph adjusted right and move my light back up so my PAR is around 950. Any help would be appreciated?
Week 7
Leaves. Curl up
Leaves. Color - Yellow
2y ago
3
3
Solved
ganzigunnu
is it cal def?
all identical environment only single plant do this. I gave plain water.
Week 4
Leaves. Color - Yellow
Leaves. Color - Dark-brown
3y ago
2
3
Solved
Jarooooon
Yellow-ish leaves and brown spots
I ran into a small problem. The leaves of my RQS Critical are getting quite yellow and brown spots appear on some of the leaves. PH is kept between 6.1 and 6.5 while growing in organic soil. I feed according to the BioBizz schedule. Curled leaves have already been fixed.
Leaves. Color - Yellow
4y ago
2
3
Solved
shiptony
Could this be light stress? I dont think it nutrient burn, as I have been taking it very easy
Week 7
Leaves. Color - Yellow
3y ago
4
Solved
Fullmeltalchemist
Super soil growers ever come across any deficiencies? See a couple lower fan leaves I removed today. I'm sure leaf loss to some extent is natural, but I read that the lower leaves are your indicators, so I wanted to run these by yall to see if you suspect and deficiencies
Week 8
Leaves. Color - Yellow
7y ago
4
4
Solved
dutchMASTAkilla
Noticed these yellow spots this morning. Not sure if this is a nute deficiency, leaf septoria or too much light. My lights were pretty low as my tent isn't very tall. Have been watering at around 6.4 and recently started feeding a full dose of Big Bloom and Tiger Bloom.
Week 6
Leaves. Color - Yellow
6y ago
9
4
Solved
BadGrower
Deficiency or overload? Any help appreciated
3 plants in question here. Minor burning on one of them? The other 2 younger ones have the bigger fan leafs turning slightly yellow. Some weird scarring noted too. Using dry amendments (earth dust, dolomitic lime). Soil, haze, 6.8 PH of filtered water.
Leaves. Edges burnt
Leaves. Color - Yellow
4y ago
1
Solved
Maincard
Still have problems
Still have problems, day 41,ph 6,5 tap water. Could it be Mag.? Use LED. THX.
Leaves. Color - Yellow
3y ago
2
2
Solved
Jeffrokush
I have tried waiting five days but linke B4RNS (shorter version)Said if the pot feels light she needs watered so I decided to water the next day so with my environment being how it is a hollow of water is used up in 2-4 days that’s when the pot feeels light!!
Week 4
Leaves. Color - Yellow
Setup. Strain - Autoflowering
4y ago
1
2
Solved
Machamp
First time grower: Should i defoliate? If yes, where should i cut it? I fear to do something bad.
How to defoliate/should i defoliate my Wedding Cake Auto and Godzilla cookies auto? Some leafs of my Wedding Cake auto are getting yellowish, as you can see in the picture My Wedding Cake Auto is too close to the LED (she is too tall). What should i do?
Week 5
Leaves. Color - Yellow
Other. General questions
Techniques. Defoliation
6mo ago
20
7
Solved
Rao_Paani
First Grow (2nd week of seedling)
I am a beginner growing autoflowers in 3 gallon pots. As of now, everything is going good with just one issue in my Gelato plant. The leafs are yellow and new ones also comming in yellow colour. I user Biobizz light mix kn top and biobizz heavy mix at bottom of pots. Any help plz
Leaves. Too few
Leaves. Color - Yellow
10mo ago
2
2
Solved
Nightabsm
Leaves browning in multiple spots Lower leaves yellowing but have green veins.
One plants leaves are browning in multiple locations. I attempted to diagnose the problem with runoff tests. pH was 6.5 and TDS was around 900ppm, which was expected since they received nutes that day. Despite not spreading to other nearby plants, could it be leaf septoria?
Week 14
Leaves. Color - Yellow
Leaves. Color - Dark-brown
4y ago
4
4
Solved
DabNinja710
Nitrogen deficiency? What can I do to fix it?
My gorilla girl xl aut is getting a nitrogen deficiency. I think? Im using megacrop. about a ½teaspoon every watering. Also a 1/16tsp of bud explosion and sweet candy. Should I add more? I have the whole line of fox farm nutrients. Anything from there that would help?
Week 5
Leaves. Wilting
Leaves. Veins - yellow between
Leaves. Color - Yellow
5y ago
1
1
Solved
AliceTheMan
Too much fertilizer?
High, i´m a little unhappy about the yellow Leafs. It´s week 5 of Flower, 20 Liter Shoes (Plagron Terra Light Mix), 2,5 Liter Water all three Days with Plagron Terra Bloom 4ml, Sugar Royal and Green Sensation 2,5 ml (like Shedule), Ph 6,2-6,5. What can i do?
Leaves. Color - Yellow
Feeding. Deficiences
4y ago
1
1
Solved
SirTucksAlot
Hey guys got some discolouration on the leaves! Can’t tell what it is! Cheers
Week 5
Leaves. Veins - yellow between
Leaves. Color - Yellow
5y ago
3
3
Solved
BrannabisTHC
Rootbound recovery time
3 Bruce Banner plants were rootbound for about a week and a half or that's when I started seeing symptoms. I transplanted then into bigger pots yesterday. Will they be okay and if so how long will it take then to get back on track?
Leaves. Wilting
Leaves. Color - Yellow
Roots. Other
3y ago
2
Solved
greenthumbartisan
Look like Zinc and Calcium deficiency? Watering with 5.8/5.9pH, 2.06 EC (Runoff 5.8pH, 0.78 EC) Few leaves had small nutrient burn on the tips earlier this week. Nutrient burn appears to have tapered off.
Week 6
Leaves. Color - Yellow
Leaves. Color - Dark-brown
5y ago
2
5
Solved
Malow
Is everything all right with her?
Hello, I planted the strain ‘Afghan Kush Early Harvest’ about 4 to 5 weeks ago. The first few weeks everything was fine and looked normal but since yesterday it has been drooping and the leaves are discolouring from the bottom up. I've looked everywhere but I haven't really found
Leaves. Color - Yellow
Setup. Strains - Photoperiod
1y ago
1
1