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

Leaves yellowing and turning crispy

JustChillTHCstarted grow question 4 years ago

Somebody knows what's wrong with my Strawberry Pies?

JustChillTHC

JustChillTHC

Open

Leaves. Color - Yellow

Leaves. Color - Dark-brown

likes

Answer

DoDrugs420answered grow question 4 years ago

Looks like a Zinc deficiency, already answered in the other question m8, take a look as the information also connects to this question.

likes

Complain

Similar Grow Questions

Solved

Yellow lower leaves Hello, This is my first grow and now I'm confronted with the first problem. The lower leaves on my plants are turning bright and yellow. A few leaves have very small brown spots. Can someone help me and perhaps have an idea as to how I should proceed? Thanks.

Leaves. Color - Yellow

a year ago

1

1

Solved

Day 11 - Yellowing tips, pale color, slow-ish growth Germinated in jiffy pallets - good seedling stage, put them in 2L Pots with LightMix on day 7. 26° avg temp, 60-78% humidity, watering 150ml when top soil dry with 6.7 pH, BioBizz Root Juice & Bio Heaven so far. Bilberry Mini 160W at 40cm distance and 25% power. Why yellow :(

Leaves. Color - Yellow

Setup. Strains - Photoperiod

Feeding. Schedule

a year ago

2

3

Solved

Brown Spots on Leaves I’m noticing some light brown spots on my leaves. After researching it seems that it was either 1) Manganese deficiency 2) calcium deficiency or 3) overwatering. I don’t think I’m overwatering. It could be the nutrients but would like input!

Leaves. Color - Dark-brown

Leaves. Color - Mottling

a year ago

5

3

Solved

Deficiency?! Please help with weird Leaf signs :(This Plant didnt have any problems in This whole run. Sinne 1-2 Weeks she started showing These weird signs and i cant figure out what it is. I thought it could maybe be phosphorus deficiency or something. Got a lot worse in the Last few days! :((

Leaves. Color - Dark-brown

Leaves. Other

a year ago

1

Solved

Two problems in a week. I diagnosed the first one based on similar grow questions (: maybe not right )First three photos appeared a week ago, I decided that it is calcium and took a more reliable Ph meter, maybe not right, but no new spots appeared. Second problem at the end of the week, 3 days after defoliation 2 large lower leaves and 2 leaves inside. 30 hours after watering.

Leaves. Color - Dark-purple

Leaves. Color - Dark-brown

a year ago

4

3

Solved

zu viel Dünger oder zu starkes Licht?Hallo meine 2 Ladies bewegen sich jetzt auch Woche 4 zu, vor 1 Woche habe ich mit düngen angefangen. Ab und zu sind die Spitzen etwas gelb vielleicht weniger düngen oder zu starkes Licht? Sehen sie soweit gut aus?

Leaves. Curl down

Leaves. Color - Yellow

a year ago

5

3

Solved

Gelbe Blätter Denkt ihr die plötzliche gelb Färbung der oberen Blätter kommt durch die Blüte oder weist das eher auf einen Mangel hin?

Leaves. Color - Yellow

a year ago

2

2

Solved

Nitrogen deficiency but why?My Critical Auto is more and more wilting and yellowing. Most likely due to nitrogen deficiency. Some have red tips on . PH of soil was normal, how can I make sure that it's not nutrient lock anyway? Should I flush it nonetheless? Feed it more? More info in my diary.

Leaves. Color - Yellow

a year ago

2

2

Solved

Durban Poison What can I do to help this

Leaves. Curl down

Leaves. Color - Yellow

a year ago

2

2

Solved

TheNextGanjaMan

Can I use magnesium sulfate foliarly?Hello, this plant is at the beginning of flowering and apparently has a magnesium deficiency, right? Can I use 100% Mag Sulfate from the pharmacy via foliar treatment? I'm using Calmag 2ml/L but it's not having any effect. I should add Dolomite Limestone to the soil this week.

Leaves. Edges burnt

Leaves. Color - Yellow

a year ago

4

Solved

Black spots on leaves So I have those black spots on leaves on top of the canopy of my plants. Can someone please explain what are those and how can I treat it? Also the edges of the leaves on top of the canopy are brown and crispy.

Leaves. Color - Dark-brown

a year ago

1

1

Solved

MarcoCasanova00

Pest infestation left my plant folded and weak. I treated it, but now blacked out leaves?Ants were farming an oval shaped bug's secretions that was eating my stem and going underground, leaving a trail of a film-like substance. Treated it with neem oil, cigarette butt tea, garlic and dishwasher soap to fend them off. Black leaves now. Tips?

Leaves. Color - Dark-brown

Leaves. Color - Black or grey

Other. Bugs

a year ago

2

3

Solved

big_bro_is_bloomin

Yellowing sugar leaves?Does this yellowing on the sugar leaves look problematic? I know the end is near so I don’t want to do any damage this close to harvest. Think another week will be long enough? Vermiculite/Perlite/Soil @ 40-40-10% Lotus Bloom @ 1/2 dose (700ppm) 100w LED 14” above canopy

Leaves. Color - Yellow

a year ago

5

3

Solved

My plant is sick like never before,should I end her life or wait for a merical My plant is sick like never before,should I end her life or wait for a

Leaves. Tips - Die

Leaves. Curl up

Leaves. Color - Yellow

a year ago

4

4

Solved

Deficiency because she starts to flower? Leaf tipps light green. Some purple at the stems.I have not fed her, just a bit here and there. So I do believe she starts to need her medication. Its going to the end of preflower week1. Symptoms: some light tipps and some purple at the stems. Solution: feed her P and K. could add some CalMag ? Or Still feed more NPK?

Leaves. Color - Yellow

Setup. Strain - Autoflowering

Feeding. Deficiences

a year ago

4

4

Solved

Stickstoffüberschuss?Habe bei meiner Auto das Problem das sie kaum in die Höhe wächst, dazu die Flecken auf einem Blatt. Ich habe aber das Gefühl das die anderen Blätter auch zu dunkel sind? Vielleicht wächst sie wegen einem Stickstoffüberschuss nicht mehr?Sollte ich erstmal ohne Dünger gießen?

Leaves. Too many

Leaves. Tips - Die

Leaves. Color - Dark-brown

10 months ago

2

1

Solved

Suspected Nitrogen Deficiency Noticed yellowing leaves at the start of Week 3. Suspect nitrogen deficiency. Using Cal-Mag, Alga Grow(NPK 4-2-4), and Power Roots(NPK 0-0-2) at half the recommended dosage. PH is measured at - 6.5.

Leaves. Veins - yellow between

Leaves. Color - Yellow

Feeding. Deficiences

10 months ago

2

2

Solved

SuperGreenGoblin

Yellowing spots on leaves I've been always feeding less than the recommended dose. Fed every second watering and watered every 2 to 3 days. Grown in All-Mix from BioBizz from the beginning. Now suddenly in week 8 leaves started to yellow, some fell off and weird yellow and brown spots appeared. What is it

Leaves. Dropping off

Leaves. Color - Yellow

10 months ago

2

2

Solved

Living soil and rain water problem Has using rain water killed my living soil? Has anyone got experience of using living soil with rain water? Apparently the ppm is too low (just like RO water) for the plant to take in nutrients. So basically is my living soil now just soil or is the microbial life still there?

Leaves. Curl down

Leaves. Color - Yellow

10 months ago

5

3

Solved

Why is my plant yellow at the top?Seed: Royal Jack from RQS 8 weeks from seed(4th week of flower) Medium: BioBizz Lightmix Nutrients: Half of recommended BioBizz dosis Bio-Grow Bio-Bloom Top-Max Bio-Heaven Acti-Vera Calmag Watering with 4 Liter water and nutes every 2-3 day. Run-off ph 6.6 1260 ppm 45DLI

Leaves. Color - Yellow

10 months ago

4