Vote Now 🏆 for the Grow Awards 2025!
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
What’s causing this ?
Loserofthemonthanswered grow question 3 years ago
Not sure why but I'm guessing your pH was a little high 2 weeks before this. Ok did I bingo?
likes
Complain
blendmedmedmananswered grow question 4 years ago
sure ill play along, this looks like too much nitrogen at some point or this plant is a very picky eater, either way less nitrogen
likes
Complain
GMSgrowsanswered grow question 4 years ago
If your adding cal/mg and you dont really need it these spots can appear. Cheers
5 likes
Complain
Similar Grow Questions
Solved
Toastdtoast
Spots and discoloration, help me Tom Cruise!Can anyone tell me what this is? I fed some calmag and no signs of pests or external fungus, water between 6.5 and 6.8, no additives, jugged spring water from the store and never have problems with it. There are 3 leaves like this and 2 are on same branch, all are mid plantWeek 8
Leaves. Color - Mottling
4 years ago
3
2
Solved
klimfish
Spotty/Blotchy Discoloration on leaf.What is this spotty/blotchy discoloration on this leaf? None of the other plants have it, it didn't brush off when rubbed. Hoping it isn't a mold or a pest...I have been keeping the humidity around 65% with good airflow, but I'm wondering if it's time to bring it down to 60%.Week 1
Leaves. Color - Mottling
4 years ago
1
2
Solved
Toastdtoast
Still K deficiency?I fed some flower fuel to plant 1, half strength, and the discoloration got worse! Some leaves almost look like cal deficiency so I also sprayed foliar with calmag, just now when I got home. Is this still looking like a K deficiency? If so, should I feed it again or wait?Week 9
Leaves. Color - Mottling
4 years ago
4
3
Solved
Everest
green spotslight green spots began to appear. Should I be concerned or is this natural?Week 2
Leaves. Color - Mottling
4 years ago
2
2
Solved
KootsFullAuto
Discolouration on fan leavesGetting a white discolouration on my fan leaves. Thought it was residue from watering with nutrients as sometimes water will land on the leaves. But it doesn’t rub off, some parts look like it’s scratched into the leaf, some parts look almost bleached. But also considering PM?Leaves. Color - Pale
Leaves. Color - Mottling
Leaves. Other
4 years ago
4
6
Solved
LeastExpectedGrower
What is this leaf spotting?Brown spots on my Auto Blueberry...What's causing this? They weren't there yesterday. Haven't moved my lights. Fed (GH Trio,CALiMAGic) Tuesday, watered today (Fri). pH runoff = 6.5 Temp@77f, Hum=58% None of my others (NL & Tan.Dream auto) have it.Week 3
Leaves. Color - Mottling
4 years ago
2
4
Solved
RFarm21
What's the problem with the leaf?What's up with these leafs? lack of ca/mag ? I'm in the 4th week of flowering.(autoflower). This plant is a little stunted from the beginning but only now do the leaves look like that. two days ago I reduced the dosage of biogrow and bioheaven a little
Thanks for the help!Week 8
Leaves. Color - Mottling
4 years ago
3
5
Solved
GrowInger420
LeafsHello my plants look like this. What could it be? 🙏✌️Leaves. Color - Mottling
4 years ago
1
1
Solved
vmass20
Nutrient DeficiencyIs this a PH issue showing or nutrient deficiencies (possibly caused by bad PH anyway, at 6.2 atm higher from earlier in week.)? Possibly magnesium deficiency, looking at pics. Anyone confident? Been hot in tents as well but water temps kept decent about 68-70.Week 5
Leaves. Color - Mottling
3 years ago
2
2
Solved
Budboxbio
Deficiancy or light issue?Can anybody tell me what this is looks like maybe deficiency or light issues help help help..
Pale-ing maybe blotchy if thats a thing looks faded almost...
On 2 plants currently
Light is at 24 inches above top of plant.Leaves. Color - Pale
Leaves. Color - Mottling
Feeding. Deficiences
3 years ago
4
6
Solved
Tjcashmoney
Rust spots on leavesCheck the pics and recommend something to help a newbie out. I’ve seen it for a couple weeks. I removed all leaves with necrosis, but it came back. I don’t know for certain what it is. I think it might be a calcium deficiency. I was going to go out and get some gypsum, but I wantWeek 7
Leaves. Color - Mottling
3 years ago
2
3
Solved
SirJester
Brown spots on seedlingHey! Seedling has a few brown spots which I’ve not had before. Any ideas?Leaves. Color - Mottling
3 years ago
1
1
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
3 years ago
4
2
Solved
FluffyPants
Any help identifying this leaf issue?Hi everyone, I have a couple of issues popping up on Medea's leaves, and I'm not sure what they are. She's in week three now, and otherwise looks healthy (if growing a little slower than usual). Her last feed (3 days ago) was her first one with a 1/2 dose of the GH trio (0.3ml/L)Leaves. Color - Mottling
Leaves. Other
3 years ago
2
2
Solved
Scooby_Doo
Plants deteriorating rapidly, pls helpPlants not looking good! Help!
White tips at the end. Brown patches. Leaves curling.
I've been feeding it 0.5L Advanced Nutrients Coco Big Buds.
The light was fairly close, at 30cm. I've raised the lights to 60cm.
It was also very humid, so I've opened the air vents .Leaves. Curl up
Leaves. Color - Yellow
Leaves. Color - Mottling
3 years ago
3
