What kind of deficiency is this?
Ezzjaybruhanswered grow question 5y ago
I believe this is potassium deficiency.
K deficiency causes internal temps of foliage to rise and it causes the protein in the cells to burn and degrade. Usually happens on the edges of the leaves.
Similar Grow Questions
Solved
DabNinja710
new growth turning yellow.I've noticed on both my gurls more on the G.G. Auto than the Zkittlez Auto. Bothe the new groth and flower areas are getting yellow But the old growth leafs are fine except there starting to curl down. Anyone could help? I tried to take pictures but it wouldn't really show up.
6y ago
1
Solved
I_roll_my_own_420
Hello guys. Im having Is it too much or too low nitrogen, thah causes my bottom leaves yellowing? 600w, 1m2 tent. 2m tall. 6x autos, 4 diffeternt models.Plants were too green and leave tips were pointed down. I stopped adding nut. for 11 days. Here is picture of today, right after watering with 2ml bloom in 1.5l bottle. ph 6.8, 340ppm. Should I feed them more, or not? Its week 5 from seed, and they are autoflowers. 4 dif. strains
Leaves. Curl down
Leaves. Color · Yellow
Setup. Strain · Autoflowering
7y ago
1
1
Solved
Marijuanaut
Yellow/burned tips & curled leavesI have an issue with some yellow/burned tips and curled leaves.
I already suspect that mainly is from light stress but could also be a nutrient deficiency?
I´ve raised the lights the max I can and keep it at 80% for 20 hours.
Biobizz soil and nutrients.
… Show more
Leaves. Edges burnt
Leaves. Curl down
Leaves. Color · Yellow
1y ago
10
7
Solved
Plant_Scientist
Dry or Feed?What should I do to fix my plant? She has hanging leaves and yellowing for weeks. The summer has been pretty wet here, and the soil has been satiated a couple of times. It's getting dry now. Should I wait for the soil to completely dry or try feeding nutrients?5y ago
2
3
Solved
AmsterdamBase
Yellowing leaves, need guidance! :)I'm having some issues with yellowing leaves at some bud sites and lower leaves. Would be glad if someone could point me in a direction as what to do to help my plants out :) it should be visible in my last picture
They got their first feed 2 days ago and were watered
Thanks!
6y ago
1
4
Solved
Jaygrow1020_autoking
Growing slow and spots on the leaf'sFastberry not doing well. Can anyone tell me what I'm doing wrong
Leaves. Curl down
Leaves. Color · Yellow
Other. Other
6y ago
1
Solved
MarisaG
Help!!!Hi all! My fast Eddy is showing some strong chrolosis, purple stems and clawing. Her growth completely stopped :( I water her every 3 days +/-, fed her once with ghe tripart at half-strengh and pH 6,5. She responded a little to Epsom salt foliar spray... Help please!
Leaves. Curl down
Leaves. Color · Yellow
Plant. Stem · Red or purple
6y ago
1
1
Solved
Cynthia1710
Someone please help. LolTwo of my leaves are a yucky yellow color. What is the issue and how do I fix it? And the leaves are clawing. Also yes I know my plant is stretchy. I had a bad light in the beginning of her life and since gotten a better one. Lol
Leaves. Curl down
Leaves. Color · Yellow
5y ago
4
4
Solved
SLuGGeRNauT_420
What’s wrong plz helpWhat’s wrong plz help is it cuz they root kind and overdue for transplant or something else I know the convex leaves are from overwatering I don’t want them to die I can’t spend much time with them so I water daily
Leaves. Curl down
Leaves. Color · Yellow
5y ago
5
Solved
Maddiq
Overwatered cubes in hydro? Too close to the sun? or effect of having addHi All, I have issues with my first hydro grow - i effed up. I think i was too slow in the transfer over in the tank. Light is 200 PPFD, EC at 0.6, and barely added any nutes.
Did i manage to overwater some of these plants by having them too close to the net pot?3y ago
3
Solved
Jhort
Is this lockout or some sort of deficiency? Soilless medium- using biothrive, biogrow, and cal-mag. Autoflower Lemond auto
Prior to yellowing the plant looked very droopy for 2 wks.
Roots look great
Leaves. Curl down
Leaves. Color · Yellow
Feeding. Deficiencies
6y ago
1
2
Solved
GracelessGardens
Purple leaves getting worse!?So I started getting light purple/yellowing last week, after my last grow question, I landed on potassium deficiency. I gave a healthy dose (2 tbsp in a half gallon of spring water) of Fox farms big bloom (0-.05-.07), within the last 48 hrs and the purple looks worse? Any ideas?
4y ago
1
Solved
ceomi69
Leave Tips Yellow and Brown on New GrowthThe leave tips of my plants turned yellow and burnt after i gave them a bottled nutrient feed (organic). Unfortunately i failed to measure the PH of the Water (it was probably to high). This was one Week ago and the New Growth still show signs that something is wrong.
Leaves. Tips · Burnt
Leaves. Curl down
Leaves. Color · Yellow
2y ago
3
2
Solved
Autogrowing
Do these look healthy? Thoughts? I'm new to hydro/growingI have autos growing in a dwc system being fed half the regular amount of hydroguard, calmag, and grow/bloom. 1 plant is a week younger. The dark green plant looks like its leaves are clawing and has big brown spots on the leaves. The other has some brown dots and little yellow.
Leaves. Curl down
Leaves. Color · Yellow
Leaves. Color · Dark-brown
5y ago
3
Solved
h4rak1ri
PLEASE HELP ME, my frozen black cherry is drying, what could I do?It’s in the early third week of the flowering phase, but I don’t know some lower branches are drying out day by day, the first three photos shows what I mean, the last one is of the higher branches. Haven't watered for a day, but I don't think its a overwatering problem.
Leaves. Curl down
Leaves. Color · Yellow
Other. Other
3y ago
2
3
Solved
NelloFarms
Help with deficiencyWell my girl scout cookies are having problems and would like to get some advice on em. Im thinking its nitrogen toxicity or ph problems. I normal try to get 6.5 ph but my runoff is below 5.9 when i checked. I gave it some recharge and water last watering and its helping a little
Leaves. Curl down
Leaves. Color · Yellow
5y ago
1
3
Solved
KINGT88
From previous post just some more infon on what I feed and how, on a 12So I use 5 ML per gallon of fox farm Grow Big Liquid Plant Food, And 5 ML Per Gallon Of Fox Farm Buds And Blooms Fertilizer. I'm barely staring to Introduce Cal-Mag so I don't think the Cal-Mag is causing the issue, I water every 2-3 Days. Temp is Right Around 80 during the day 7
Leaves. Curl down
Leaves. Color · Yellow
Leaves. Other
4y ago
5
5