The Grow Awards 2026 🏆
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
Back to Grow Questions
What kind of deficiency is this
Cortez95
started grow question 4y ago
What kind of deficiency is this
Open
Leaves. Curl up
Leaves. Color - Mottling
likes
Answer
Organoman
answered grow question 4y ago
Not a deficiency, but nitrogen (over dose) burning.
likes
Complain
ChitownCannaChica
answered grow question 4y ago
That looks like PH problems coupled with over watering and a slight nitrogen toxicity! Feed your lady some light water feeding at the 6.4 range for a week! Good luck ✌️🏻💚🌿💨
likes
Complain
Aquemini
answered grow question 4y ago
Check your soil, plants will throw some crazy looking deficiencies if it's over watered. If you are sure you didn't overwater the plant check your pH.
likes
Complain
Roberts
answered grow question 4y ago
Potassium or magnesium. Might be a touch of both actually. Is ph in substrate or Reservoir correct? Ph tool calibration done regularly?
likes
Complain
Similar Grow Questions
Solved
AvoidantGrower
Burnt? PH lock-out? too much Cal-mag??
What do you think is wrong with this plant? All the other plants surrounding her are fine so I'm not sure what went wrong with this one. I thought it was cal-mag deficiency at first so I doubled cal-mag when feeding but it only proceeded to get worse. The buds look fine tho 👍😳
Week 8
Leaves. Curl up
Leaves. Color - Dark-brown
4y ago
2
5
Solved
DWCDream
Nute burn or environment?
Leaves curled on edges,tips brown and brittle falling off. 40days in flower. Temp floats between 20-26°C night and day, hunidity 50-65% measured top of the canopy wifi sensor. Good ariflow lights are 500W 3ch 75V/100B/100UV ontop and 400W (6 bars sides and under)
Leaves. Tips - Burnt
Leaves. Tips - Die
Leaves. Curl up
2y ago
3
4
Solved
Goodvibs
Hi all, I have had very slightly yellow tips on this plant for a while. She is mid week week 10. Two days ago the leaves started to curl and the yellow has spread slightly. Last night I flushed her with PH water and have dimmed the light slightly, anything else I can do 🤙thanks
Week 9
Leaves. Curl up
Leaves. Color - Yellow
4y ago
4
5
Solved
Hoodoo
Small brownish spots forming on lower leaves. Need help with diagnoses!
Hi all. Just migrated plants to new tent/fan. I have much better environmental conditions. Now I have these leaf spots. I've included recent measurements. I was going light on the CaliMagic using 1/2 tsp per gallon. Is that my issue? Roots look good. Thanks everyone!
Week 4
Leaves. Color - Mottling
6y ago
3
2
Solved
fungiiiiiii
Is this just genetics or deficiency/disease?
Is this mottling some kind of deficiency or disease? or is it just a genetic variation? This Sour diesel had a two toned leaf at the 3rd node and had this mottling from the start.
Week 4
Leaves. Color - Mottling
5y ago
2
2
Solved
Grow_for_Happiness
Should I be worried or just a weirdo?
Trying to figure out if I should be worried that this plant looks so different than her sister. Same strain, same everything, even watered from same bucket at same time and amount. Last runoff 6.6ph Checking runoff again tomorrow when water. Herm or just a weirdo? #5 normal one
Week 11
Leaves. Curl up
Leaves. Color - Dark-brown
Plant. Other
3y ago
3
4
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
JohnD
Leaves are look sick.
First set of /lower/ leaves are getting sick I presume, and surely gonna fall off. Definitely not looking ok to me, maybe they just age out?!? If anyone have a idea what's causing thins - please leave a comment. Thanks in advance!
Week 5
Leaves. Color - Mottling
4y ago
4
2
Solved
MomoCookie
Deficiency?
Plant is not looking great How long do bio nutrients take to be available for the plant? Soil Ph 6 CANNA Tera Vega 1ml Biobizz Bloom 4ml Biobizz Top Max 4ml Biobizz Calmag 1ml Biobizz Root Juice 1ml 0.75l water every 24 h
Buds. Not fattening
Leaves. Curl up
Leaves. Color - Yellow
5y ago
3
Solved
Maraviglosos
Bruising or nute problem?
I do not have enough characters here, please check diary for details. Some tops are showing some problems. The thing is, only a few and it does not seem related to light distance. My first thoughts is this is bruising, but I would like some more expert opinions.
Week 11
Leaves. Color - Red or pink
Leaves. Color - Dark-brown
Leaves. Color - Mottling
5y ago
3
Solved
Hate1312
Nährstoffmangel?
Hallo, habe ein Problem bei meinem grow.Bt33Habe 3 Stecklinge in 13l Topf (FEM Mimose, Gorilla ,Wedding) Zelt : 120x60x180 Lampe :Sanlight evo 4×120 (265w)100 % 45 cm Wasser 12l alle 3 Tage calmag+Bittersalz+algamic+activera Dünger Ghf Bloom Calmag+Phosphormangel glaube ich?
Leaves. Color - Yellow
Leaves. Color - Pale
Leaves. Color - Mottling
10mo ago
2
1
Solved
Mossbross
Why have the leaves on my plant turned pale and crispy?
4 weeks into veg with auto and all of the leaves (including new growth) have turned very pale and dry, starting at the tips and receding rapidly. I’ve used the same two part nutrient solution in the same quantities as I did with the previous same auto, so Disease maybe?
Leaves. Curl up
Leaves. Wilting
Leaves. Color - Pale
5y ago
4
4
Solved
Dreadnug
Calcium issue
Can someone recommend the best way to remedy a calcium deficiency?
Week 17
Leaves. Color - Mottling
3y ago
2
3
Solved
IbeBryBry
Ca,Mg,Fe,Cu,ect deficiency?
If anyone can see the third or fourth picture there is a decent shot of a deficiency. It's some immobile nutrient like Ca,Mg,Fe,Cu, ect. I just can't figure it out, been supplementing with CalMag fog almost 2 weeks? Any suggestions? Possibly Cu deficiency?
Week 12
Leaves. Color - Mottling
4y ago
1
3
Solved
ThePotFactory
The yellow spots that were seen last week have multiplied and started to appear on newer leaves. I should mention my tap water E.C is 0.8 so quite high. I still however added calmag this at it seems to look like a calcium deficiency. Are they to young for one though? Thank you
Week 3
Leaves. Color - Mottling
8y ago
5
8
Solved
Magic43562
Tips curling
14 day old purple punch auto tips are curling. What can be causing that?
Week 3
Leaves. Curl up
5y ago
3
4
Solved
crusoe
Yellow leaf tips and edges
Hi I've got a problem that I've seen from the start of my grow and it's getting worse on older leaves now - zoom in edges and tips are turning yellow. I thought it was magnesium so I've dosed with Calmag but it's not improved - I'm Ph6.5 - any ideas?
Week 4
Leaves. Color - Yellow
Leaves. Color - Mottling
5y ago
1
Solved
Spider
Little leaves "croppies'
Qualcuno sa perchè le foglioline sulla cima sono un pó "croppies"? Buona crescita a tutti, I migliori desideri.
Week 1
Leaves. Curl up
5y ago
2
Solved
Pablo77
My plant has being well so far but now have found in one of them this sort of discoloration / spots in some of the leafs. Going into flowering now, anything I should worry / correct? Have added a bit of background in the comments
Week 6
Leaves. Color - Mottling
8y ago
3
4
Solved
Wilmer
Wavy leaves
Hey guys, some leafs are like wavy on the borders, could it be for high temp or too much light? (picture is not mine, mine are not that wavy , got this picture for a better example)
Week 1
Leaves. Curl up
6y ago
4
3