The Grow Awards 2025 🏆

Chat

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

Recommended

Back to Grow Questions

Nitrogen Toxicity?

SirBudstarted grow question 3 years ago

Is a nitrogen toxicity developing? What can I do to prevent it?

SirBud

SirBud

SirBud

Solved

Leaves. Tips - Burnt

likes

GrowingGrannieanswered grow question 3 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!

1 like

Complain

Selected By The Grower

spyderanswered grow question 3 years ago

tips will usually turn downward also with nitrogen toxicity,, if so cut back on nutes feedings,

likes

Complain

Weird_Jimmyanswered grow question 3 years ago

Never take horticulture advice from stoners.

likes

Complain

Similar Grow Questions

Solved

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!

Leaves. Tips - Burnt

Leaves. Color - Yellow

2 years ago

3

3

Solved

Leaf Tips Turning Brown Hi 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

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 it

Leaves. Tips - Burnt

Leaves. Color - Yellow

2 years ago

1

1

Solved

nutrient burn or light burn?17 d after seeding Pinnapple Kush Cake Automatic. 2L pots since 5 days. 600 PPFD LED 19/5; 45% humid; 26°C PH 6,5 Yellow to brown leaf-tips at 2 of 4 plants since 3 days. Is it beginning of a serious problem of to much light or more from to much fertilizer in the potting soil?

Leaves. Tips - Burnt

2 years ago

5

3

Solved

Yellow tips on new growth? Some clawing too.Newbie here. It's the plant on the right. Fast Buds Gorilla Zkittlez Auto. Age 31 days. Fox Farm Ocean Forest. No feed until 2-3 days ago, then 24-8-16 blue, 0.8g/L. Light, 18/6. Started at 25%, now up to 100%. DLI about 80 per Photone. I flushed yesterday after noticing.

Leaves. Tips - Burnt

2 years ago

2

2

Solved

SupremeGreenGrows

Beginning of week 8. Deficiency? Nute lockout? Normal for this stage of its life?Beginning of week 8 and her leaves are showing more spots and discoloration everyday. Is this normal for an Auto in the late stages of flower? Or do I need to feed more? Maybe a flush? This strain says she takes about 10 weeks start 2 finish.

Leaves. Tips - Burnt

Leaves. Color - Yellow

Leaves. Other

2 years ago

1

1

Solved

Possible nutrient burn ?I’m pretty sure this is nutrient burn but it’s weird because I’ve only given a tiny dose of nutrients so far. Less than a quarter of recommended dose and probably less than I’ve ever given an auto before. What do people think ? Nutrient burn ?

Leaves. Tips - Burnt

2 years ago

8

5

Solved

Hi, im growing a autoflower in hydro, 60l bucket. Using ghe line nutrients. Everything is thriving except dor some minor issues thar i cant explain. Please identify rhis problem for me its a marvelous plant indeed hope its not something serious thanks growmies

Leaves. Tips - Burnt

Leaves. Color - Yellow

Leaves. Other

2 years ago

1

3

Solved

Leaves have orange weird patterns all around it Leaves are turning orange in weird places of plant leaves any solutions? ( not the leaves that look light sick, handled it yesterday )

Leaves. Tips - Burnt

2 years ago

2

4

Solved

More or less ppm My plant in week 4 of flowering are yellow from bottom up so I think it was nute deficiency sign but also they have slightly burnt at leaf tips on top. My last feed is 750ppm, grow in soil. My routine is feed every 3rd water(f/w/w/f) should I feed more often or same but more ppm

Leaves. Tips - Burnt

Leaves. Color - Yellow

Setup. Strain - Autoflowering

2 years ago

3

6

Solved

What gave this? Light excess or nutrient burn or lack?I had this symptom from the beginning, stable, I didn't worry too much. What could be the reason? How to avoid this in the next grow. I mean, it's minor, but might be better to attend and unleash a better result. I have this on all buds, on canopy it comes with curly leaves.

Leaves. Tips - Burnt

2 years ago

2

2

Solved

My leaves are turning yellow My plant's leaves are turning yellow. If you know anything about it please let me know.

Leaves. Tips - Burnt

Leaves. Color - Yellow

2 years ago

2

3

Solved

Spotting and discoloration Hydro set up, put a humidifier in the cabinet with the plant, and started noticing this after a few days. Any ideas as to what is going on with this spotting and discoloration?

Leaves. Tips - Burnt

Leaves. Veins - yellow between

Feeding. Deficiences

2 years ago

1

1

Solved

Laurel Leaves are drying up Hi growers! Today I noticed that the laurel leaves are drying up. EC and PH are normal. Do you know what it could be?

Leaves. Tips - Burnt

2 years ago

1

Solved

White and yellow spots, yellowing leaves? What is going on!Changed water, no fix, added humidity, no fix, any ideas as to what's going on with my plant?

Leaves. Tips - Burnt

Leaves. Color - Yellow

Feeding. Deficiences

2 years ago

3

Solved

Yellow / brown leaves tips; should I worry ?Hey ! My 3 plants (same strain) are showing yellow / brown leaves tips for a few days, and I'm not sure what it could be. I'm thinking mild potassium deficiency, or perhaps a bit too much nutes ?FYI, I'm strictly following Biobizz chart, every watering. Should I worry ? Thanks !

Leaves. Tips - Burnt

2 years ago

1

1

Solved

yellow leaf tips.i was away for a week and some shoots got close to light one plant has yellow leaf tips. light burn? or overwatered maybe? i use blumats and cant reach that plant anymore. please look at my diary.

Leaves. Tips - Burnt

2 years ago

5

4

Solved

Apricot Oreoz... the Unhealthy Runt Does anyone have any experience with growing Anesia's Apricot Oreoz seeds? The plant seems to be experiencing a Cal-Mag related nutrient deficiency that the others are not. All plants are being grown under the same conditions. Any suggestions?

Leaves. Tips - Burnt

Leaves. Veins - yellow between

Feeding. Deficiences

2 years ago

2

2

Solved

Yellow tips and brown rust spots Can anyone tell me what's going on here and how to fix it? I have yellow and brown tips and rusty brown spots on the leaves, plant has been going so well thus far it would be a shame to lose it!

Leaves. Tips - Burnt

2 years ago

3

3

Solved

Balcony Auto Gelato with Yellow and Brown Leaves I'm growing this auto gelato in a balcony safe from rain fall and harsh wind, it's the 25th day and the bottom leaves and cotyledon are turning yellow and with some brown traces. I started to use minimum amount of "all in one" fert. Do you think it is overfertilization issue?

Leaves. Tips - Burnt

Leaves. Color - Yellow

2 years ago

4

4