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. For details please see Privacy Policy
Accept
Nitrogen Toxicity?
GrowingGrannieanswered grow question 2 years ago
It sure looks like it... the Top Max is probably the culprit here as it has a lot of nitrogen in it. Since they're in flower, you need to be giving them some bloom nutes as well! Cut back on the Top Max before you get a calcium deficiency, add some calmag just in case and start your bloom nutes!
Good luck!
spyderanswered grow question 2 years ago
tips will usually turn downward also with nitrogen toxicity,, if so cut back on nutes feedings,
like
Complain
Weird_Jimmyanswered grow question 2 years ago
Never take horticulture advice from stoners.
like
Complain
Similar Grow Questions
Solved
TechDCo
1. Over Fed (seaweed?)
2. Burnt? Cauliflower..
3. Calcium Deficiency
4. Hydrogen peroxide 12% Food-grade 30/70 Mix.
Personally I think it's the hydrogen peroxide 12% mix, the hydrogen gave one of its atoms to the neuron of the Diatomaceous earth metal clay. With help from heata year ago
8
8
Solved
Jordan73
Calmag Problem?Hi Growmies, habe kräuselnde Blätter, lila Stängel und vereinzelt gelbe blattspitzen. Ist das ein calmag Problemchen? Danke schon mal für die HilfeLeaves. Tips - Burnt
Leaves. Curl up
Plant. Stem - Red or purple
a year ago
8
7
Solved
Mokorelsare1
Deficiency or toxicity?Hello i'm not sure what's going on, is this toxicity or deficiency? She loojs happy overall but new leaves have weird color, curled down tips, some of em are yellow and some are brow - burned.. maybe it's because she's transforming into bloom phase, PH 6.2 but runoff is PH 7.1.a year ago
5
2
Solved
Mastr
Leaf burnHi everyone again I'm back lol I seen deficiency in leaf is it low ph ???Ph was 6 and I been told to raise it to 6.3 or 6.5 for other plant is she same??or if not please tell mo how to treat it thanks I don't want to ruin this grow that's why I'm bit worried thanksWeek 8
Leaves. Tips - Burnt
a year ago
1
3
Solved
BLAZED
Older leaves are yellowing, brown/red rusty spots, dying tissue, red stems.Older leaves have brown/red rusty spots and looks like dying tissue in between the veins.
Burnt tips, and yellowing leaves.
The soil was really dry and my PH meter was 0.4 too high.
I gave each plant 3L of water with EC: 0.0 PH: 6.4 to check runoff.
Runoff was PH: 6.1 EC: 0.8a year ago
3
3
Solved
AlpAge_Cino
Discolored, burnt and curled up tips on higher leavesSeveral symptoms, always on tips of higher leaves : they are discolored/burnt or burnt/curled up. LED @40cm (deemed 70% of 300W) and I just gave them the 2nd flowering feeding, 4 days after first one (pots were very light). I was planing to start compost tea... What should I do ?a year ago
3
2
Solved
bbkaldo
'Claws' on tips just after flowering started. Previous answers help - it is a bit worse. I keep a perfect VPD. What should I do? Flower wouldnt fI'm confused. For the first 3w I used LED as instructed 30-40cm, I had ~43cm,100%dim, everything was fine. When the bloom started yellow claws appeared and still there, maybe a bit worse, with 53cm and 75%dim. Mostly on BPP, one more plant showed her claws today aswell. 😓Leaves. Edges burnt
Leaves. Tips - Burnt
Setup. Lighting
a year ago
2
2
Solved
Cyborg420
Dealing with Nutrient Burn and Salt Build-UpI've observed salt build-up and nutrient burn in my plants recently. I've taken action by flushing and removing 60% of the affected leaves. Now, I'm considering whether to remove the remaining affected leaves and when to proceed with top dressing. Please advise.Week 6
Leaves. Tips - Burnt
a year ago
2
2
Solved
Vril_Ya
Leaf burnt edgesHi, I'm a first-time grower. Is this a sign of nitrogen deficiency in my Mimosa seedling?ThanksLeaves. Edges burnt
Leaves. Tips - Burnt
a year ago
3
2
Solved
aDriftwoodKing
Yellow leaf with brown spots?Plant has only 1 leaf like this, and the opposite fan leaf appears normal. Another plant has a similar leaf like this but with less spots, and one yellow or bleach spot. But only 1 leaf on each plant. My latest diary entry has more info, any help appreciated.a year ago
6
5
Solved
JoeShmo420
What is your best advice for helping plants look great and not dried out on any edges?Brown edges got me down. I'm sure its just humidity. I've been adjusting the light. Could it be more? whats your best seasoned advice to keep those edges looking crispy... (Good) ? not in the wrong way!Week 4
Leaves. Tips - Burnt
a year ago
2
2
Solved
BLAZED
Leaf problemsMy leaves are getting yellow from the bottom, and some have burnt tips. It started when she is in flower.
I often feed Powder Feeding from Green House. PK+ (NPK: 0-30-27) and Hybrids (NPK: 15-7-22) the PH is 6.5
They say this strain wont need much nutrients but can handle morea year ago
6
7
Solved
MendocinoGreeno
Deficiency or excessHello colleagues,please advise me, what could it be? the tips of the leaves are sometimes lighter, and the holey leaves? I didn't find any pests in the tent. I use the AH set. Once a week I only rinse with water with enzymes. Can you think of anything?Leaves. Tips - Burnt
a year ago
4
6
Solved
newbieeeeem7
Burn leaves? Yellow leaves? BIg problem? (AUTOFLOWERS)I had a problem with a lack of magnesium in the larger plant and I applied a little with a sprayer directly on the leaves, I got confused, I sneezed once on the leaves of the smaller seedling. Can I do something to resolve it? I even thought the LED was too close and I raised itLeaves. Tips - Burnt
Leaves. Color - Yellow
2 years ago
1
1
Solved
kitten150
Leaf Tips Turning BrownHi All, newbie here looking for a little advice. The leaves on my plant are turning brown at the tips and curling down. Can you please take a look and let me know what you think could be the issue? Thanks a bunch.Leaves. Tips - Burnt
Leaves. Curl down
2 years ago
1
Solved
HakunaMatata
Yellowing on leaves tips. Should I start feeding her?Some yellowing appeared on the leaves this last day. Temps and humidity are controlled and ok. I haven't been feeding her, she has been growing on light mix for the past 25 days. Im thinking its time to start applying some nutes. Or could be something else? Thanks!2 years ago
3
3