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
Upward Curling Brown Leaves/Nutrient Lock Out?
HappyHarveststarted grow question 5y ago
I've got a serious issue. Started 3-4 days ago, right after adding nutrients and increasing light.
Leaves are curling upward and browning. Not crumbling yet but look like they will be soon.
Both new and old growth is being effected.
Maybe the Mineralized Phosphate was too much.
likes
Spyder7answered grow question 5y ago
I'm guessing nutrient burn (too much P) and light stress. Time to thoroughly flush and back the light off.
Jevonbearbearanswered grow question 5y ago
Looks like nutrient burn. Flush your medium. I found that top feeding like with phosphates and other organic nutes can really burn up a crop if not done right.
likes
Complain
Nor_Cal_Kannablissanswered grow question 5y ago
Totally nutrient burn.. I'd do a flush with just pH'd water asap.. and then after she perks back.. start up again at a lower dosage.. 👊
likes
Complain
Similar Grow Questions
Solved
geeseeds
This margin curl appears to have spread from one plant to 2 of the other 3. So I assumed not pH, not lockout, not nutrient based. Roots all great. I've culled the 3 and there is 1 survivor doing well but what was this? In the diary I mention using Temprid FX, Neem, Spinosad.
8mo ago
2
2
Solved
Eotrio
Brown spots on leavesi got those brown spots on my leaves and cant quite get on why they are there, im sure i watered enough biobizz calmag, so i dont think its that, the second plant looks just fine, meanwhile the plant with the brown spots have a lot more trichomes, really weird
Leaves. Color - Dark-brown
2y ago
1
2
Solved
Padrino
Calmag?? Someone help pleasewhat the hell is going on with this girl. I leave for 4 days and she is beautiful and green and I come back and she looks like this. I thought it was calmag but I've been giving 5ml per gallon so I have no idea what's happening please help?? thanks
Leaves. Curl up
2y ago
1
2
Solved
MikeVA
Stressed plantHaving a deficiency or toxicity... Anyone know off hand what this is?
Leaves. Color - Dark-brown
3y ago
1
1
Solved
SaintLoud
Yellow spots and purple stemsI have these yellow spots on my fan leaves and purple stems on just one of my Girl Scout Cookies. Both being fed the same thing, temps are stable and so is humidity. Don't understand what's up with this girl. 1st 4 pics of issue plant last is of her healthy sister.
Leaves. Curl up
Leaves. Veins - yellow between
Plant. Stem - Red or purple
3y ago
5
2
Solved
CannaKrops
Possible deficiency or calcium needed?Please help me figure this out! Sour Kush Auto, 3 weeks. No nutes yet, Ocean Forest soil. Other 3 strains, same age, no problems. Bottom leaves showed signs first, then next set showed. Deficiency or soil to rich? Thanks all! Ph 6.5
Leaves. Color - Dark-brown
3y ago
2
2
Solved
leoen2
Lemon Ice 2.0 - Browning leaves Weird GrowthAnyone got an idea what may have caused the weird looking lemon ice to grow like that? I'm guessing a fungal infection or mold, which is weird tho cuz all of them got the same exact feed, time in the plugs etc. Basically its odd because it only affected one (thank fuck), ideas?
4y ago
2
3
Solved
Shotiie
Serrated edges curling upWhy are the Serrated edges curling up. I took humidifier out last night and the leave look less dark. Rh is now bt 55-60. Mars hydro sp2000 Light is 2 feet above and on 50%. Do I need a fan? The air being sucked in is chilly but not directly blowing on the plant.
Leaves. Curl up
4y ago
2
2
Solved
Drizzy315
6 week flowering leaves turning black/ purplish color?Hey guys I’m new to the site and fairly new at growing got a question. My plant seems pretty healthy for most part but recently what appears to be black color taking over the leaves ? Is it phosphorus? I been giving them plenty bloom nutes. It week 6 about. Any idea what it can b
Leaves. Color - Dark-purple
Leaves. Color - Dark-brown
Feeding. Deficiences
5y ago
2
Solved
MiistrH
Slight lightburn?First pair leaves on left plant turn slightly lighter, first sign of yellowing a bit. Also I think they are a bit in a V/praying shape.
2 full weeks old under 75% of 200W leds about +-45cm. Should I dim them a bit more/hang higher?
Other suggestions maybe?
Leaves. Curl up
Leaves. Color - Yellow
7mo ago
4
Solved
NodularStomp
Can some one tell me what this is ?
Lately there is some discoloration in some leaves of the plant.
It started at the leaf tips.
Pics are above.Week 8
Leaves. Color - Dark-brown
6y ago
3
2
Solved
growbie
Brown dotsLeaves
I really dont know whats going on... Something is wrong. It looks like leaves are burned by over feeding, not on the tips but brown dots from middle, i only used mycorhiza. Does anyone know what happend?
Or any advice how i can fix it?Week 2
Leaves. Color - Dark-brown
5y ago
6
3
Solved
Greenbean420
Browning on leafs mid flower!?Hey ive got browning on 2 plants leafs mid flower? Could this be a Calmag deficiency or is it normal?
Only been using biobizz grow at 0.5ml/litre and bloom and topmax at 1ml/litre.
Thanks!
Leaves. Color - Dark-brown
Other. General questions
Feeding. Deficiences
5y ago
1
2