The Grow Awards 2026 🏆

Back to Grow Questions

White leaf tips

Smoqerstarted grow question 5y ago

Any idea what can cause these white/light yellow leaf tips, mostly on the newest leafs?? Might be light burn, it’s quit a powerful led (niello m-900) or maybe high on nutrients?

Solved

Leaves. Tips - Burnt

likes

Mr_Weeds_Autosanswered grow question 5y ago

It actually is a little bit of both. The tips are slightly burned as you stated, but you can also see some leaf cupping which is a sign of light/heat stress. I would just back off of both a bit, take the light to about 24"-30" inches above the canopy and go a little lighter with the dosage of nutrients.

2 likes

Complain

Selected By The Grower

Similar Grow Questions

Solved

tips of leaves tips of leaves turn yellow on both plants ((

Leaves. Tips - Burnt

Leaves. Color - Yellow

6y ago

3

Solved

Can anyone tell what is causing these yellow tips on new growth on this plant?I noticed my DLI was around 42 at the top of this plant so the light may have been too strong, or it could be a nutrient issue? Using CoM Stonington soil, plant is 26 days old. Haven't added any nutrients to the soil yet.

Leaves. Tips - Burnt

Leaves. Color - Yellow

1y ago

1

3

Solved

The last photos of this week show the burned tips on both floors. I think it can be an excess of potassium. Can anyone shed any light? Thank you

Leaves. Tips - Burnt

6y ago

4

1

Solved

What the heck is wrong with this plant ?!What's is lacking now? . I flushed it yesterday but the leaves seem worst

Leaves. Tips - Burnt

Leaves. Color - Yellow

4y ago

1

2

Solved

Thrips damage or deficiency/ toxicity Seems like I’m having a deficiency or excess of some sorts in my plants. Also I’ve had some thrips but I don’t know if this is going to be related it or not. Older fan leaves are darker green band some have some purple in the stems. Some browning on tips

Leaves. Tips - Burnt

5y ago

1

1

Solved

Is it a magnesium deficiency Is it a magnesium deficiency?

Leaves. Tips - Burnt

Leaves. Veins - yellow between

2y ago

2

10

Solved

Aiuto!Problemi alle foglie carenza di zinco? O over fert?

Leaves. Tips - Burnt

Leaves. Color - Dark-purple

6y ago

3

2

Solved

Magnesium or Nutrient Burn or?Magnesium deficiency, or nutrient burn or??? Only on the lower leaves so far, curling down was existing genetics - but the burnt tips are new and some have even curled up now. Probably 5+ weeks left so too early for natural dying off?

Leaves. Tips - Burnt

Leaves. Color - Yellow

6y ago

5

4

Solved

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.

Leaves. Tips - Burnt

Leaves. Curl down

Leaves. Color - Yellow

2y ago

5

2

Solved

Rate this plant please, how is she doing in your opinion? What could I improve ?I am a bit lost on what is going on. I know that: - ruffed her up a bit from tucking and ScrOG. - she had some light stress, because i am unsure about height and strenght. - maybe a bit too much nutes, tipps Could you please rate this plant and give me some advice ?

Leaves. Tips - Burnt

Other. General questions

Setup. Strain - Autoflowering

2y ago

4

2

Solved

What is wrong with this plant Can you please tell me what is that? 1,5 Bloom GHE 1 Biobizz BLoom 0,5 Fish MIX 1 Algae concentrate 0,5 revive 1 ml bio heaven 1 ml Bio acti vera 2 drops PRO Bloom 2 ml Cal Mag Bio BIzz HNO3 as acidifier. I bring everything down to 650 ppm and 6,3 pH soil : ALL MIX

Leaves. Tips - Burnt

Leaves. Color - Yellow

4y ago

3

Solved

Is this Ph lockout Coco drip setup with the full canna line except boost. Week 7 juicy fruits auto. Feeding at 1.5EC and ph 5.8 to 6.2. I drip for 26 seconds about every 2 hours pump stops as soon as there is run off. Run off was at 5.25 Ph and 1.5 EC. I flushed with ro water with nutes 1.0 5.8.

Leaves. Edges burnt

Leaves. Tips - Burnt

Leaves. Curl up

5y ago

2

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

3y ago

3

Solved

Auto flowers 4 weeks from sprout. Noticed I'm getting brown dots on my leaves, so far they have had no nutrients and I'm sure that's the problem but wanted to ask. Also what is the best nutes to give, still new so just winging it at this point lol.

Leaves. Tips - Burnt

2y ago

3

Solved

RomeoAlphaWhiskey

leaf tips bronzing all over this is looking to me as P toxicity, what do you reckon? dasboof get in here again.

Leaves. Tips - Burnt

Leaves. Curl up

4y ago

2

2

Solved

Fallingthroughstars

Heavy fast yellowing I flushed my plant because of too high ppm reading from run off and now she seems to be going all yellow. Is this normal for this stage of the grow (all trichomes still white and small buds) or is this a definite nutrients deficiency during flowering?

Buds. Not fattening

Leaves. Tips - Burnt

Leaves. Color - Yellow

4y ago

5

4

Solved

Листья сохнут по краям Critical Kush BF 4 неделя Вегетации растение слабое и тонкое листья сохнут по краям и заворачиваются вверх

Leaves. Tips - Burnt

Plant. Other

3y ago

5

Solved

What could cause this burn mark?Can anyone tell me what caused the burn mark in the picture (week3) ? Would like to learn and improve! 😇

Leaves. Tips - Burnt

4y ago

5

5

Solved

NIagaraFalls420

Light burn/moved to new tent Having some issues with blueberry #3.. it got some pretty bad light burn before I could get it into my larger tent and the leaves have turned yellow and have been dying off. Also have spots forming on leaves. After moving to new tent no change. See last 4 pics week 9. Any ideas?

Leaves. Tips - Burnt

Leaves. Color - Yellow

Plant. Wilting

6y ago

1

1

Solved

Banana Purple Punch Auto RF3 Mein aktuelles Tagebuch zur Pflanze ist auf meine Profil. Ich habe nun seit ein paar Tagen an neuen Blattspitzen leicht verbrannte Anzeichen und bei manchen Blättern hängen die Spitzen sogar runter. Ich kann eigentlich sagen es ist keine Überwässerung oder Nährstoffüberflutung.

Leaves. Tips - Burnt

2mo ago

4

14