The Grow Awards 2026 🏆

Back to Grow Questions

Deficit?

Lapoldastarted grow question 4y ago

Hello, everyone. Thanks in advance for the advice. Is this a nutrient deficiency?

Lapolda

Lapolda

Solved

Leaves. Color - Dark-brown

likes

HerbalEduanswered grow question 4y ago

Look like first sign of calcium deficiency: https://loudclouds.co/wp-content/uploads/2016/07/marijuana-deficiency-chart-jorge-cervantes.jpg

likes

Complain

Selected By The Grower

Similar Grow Questions

Solved

When growing different strains in a RDWC system how do you balance plants with different nutrient needs. My amnesia auto ran into a major cal-mag issue and now is experiencing nitrogen toxicity, while my feminized Jack Herer's are largely unaffected. Thanks for the advice.

Leaves. Color - Dark-brown

7y ago

3

3

Solved

Nutrient burn crazy burning on the big plant. I'm not sure what I'm doing wrong here. I cut the nutrients back to 7ml/gal today. This is after the trimming the worst leaves

Leaves. Color - Dark-brown

5y ago

1

1

Solved

Calcium deficiency?Hello Everyone. The Fan leaves at the top and Middle have brown spots, I use RO water and feed with Fox Farm Tiger Bloom..Everytime I feed or Water I have been adding 5 ml of Cal Mag Ph 6.4 feeds right at 900ppm . NL auto week 4 flower. Thanks in advance. Wash your hands 👍

Leaves. Color - Yellow

Leaves. Color - Dark-brown

6y ago

1

1

Solved

Manganese deficiency or rust?Could it be manganese deficiency or rust? Few upper leaves are affected this ways showing some brown dots.. Could it be due to a PH fluctuation I had recently? Need some help

Leaves. Color - Dark-brown

Feeding. Deficiences

6y ago

1

2

Solved

Hi everyone. I am rdwc w/4 plants near end of flower. This plant has always been unhealthy. However this is a new twist. As I said rdwc, other girl are groovy, so it is what it is but my question is; what is it? Genetics?

Leaves. Color - Dark-brown

4y ago

8

5

Solved

Hello growers, this morning i found brown spots on fan leaves, is this some kind of deficiency or fungi? is harder to see under normal light but i can't take a decent picture in the grow box.

Leaves. Color - Dark-brown

5y ago

3

4

Solved

Curled leaves and brown spots Please help! My Acapulco Gold suddenly showed leaf symptoms today. Shouldnt be a lock out, I always water with drain and use lower doses than the BioBizz chart recommends. Used Molasses two days ago, could that be the cause? Its the only plant that shows this signs.

Leaves. Curl up

Leaves. Curl down

Leaves. Color - Dark-brown

2y ago

1

Solved

3th week of Veg. Nuts deficiency or burn? Might it be a root zone issue?Hi. It's 2x reg fem Royal Runtz and 2x reg fem Special Queen #1 from RQS im using CannaAQUA nutrients + Cannazyme and Rhizo. PH is 5.6 EC 1.3-1.35 water temp 23°C on DWC system. Air temp 27.5°C hum.50%-60%.Light is from MarsHydro series FC-E 6500 730W on 80% and 1m above ladies.

Leaves. Tips - Burnt

Leaves. Curl up

Leaves. Color - Dark-brown

4y ago

4

5

Solved

Seedling 1st leaves curling inwards what might be a cause for the leaves curling in and looking a bit scorched. could it be that it wasn't getting enough water at the root?

Leaves. Edges burnt

Leaves. Twisted

Leaves. Color - Dark-brown

5y ago

3

4

Solved

GoldenWeedGrower

Brown spots on the first 2 leaves I noticed these brown spots on the first leaves and I'm wondering what are about. Any suggestion ? Thx

Leaves. Color - Dark-brown

5y ago

2

Solved

Too late for epsom salt spray?Is it too late to use epsom salt as a foliar spray for my potential mag def? Also unsure of how much long I actually have until chop All plants were flipped the flower the same day on April 28.

Leaves. Color - Dark-brown

3y ago

1

Solved

Dead ?Hello guys, My flowers seem dead, trichomes are not changing since 3 weeks. + Leaves are really horrible (that's broke my Heart) Do you think I should harvest ? That's really clear trichomes and not milky... Still thc in there ? Colombian jack strain, smth about week 27 ?

Leaves. Color - Dark-brown

Other. Harvest - Drying

3y ago

5

4

Solved

Browning of plant 1 lower leaves Guidance please, On my 1st plant it looks like it has a pH issue however my other plants don't have any signs of a problem. I don't have a pH meter but have test strips and I have not seem an issue with my water. Is the browning on some of the lower fan leaves normal?

Leaves. Color - Dark-brown

5y ago

2

2

Solved

Prosím pomôžte je toto problém?Je to problém prosím? Ak áno čo mám robiť

Leaves. Color - Dark-brown

6y ago

1

Solved

Weed doctors to the rescue Day 44, fb auto, my happy girl developed those dark spots at the top... Is this a Calmag deficiency? Although I'm giving her calmag every feeding. I think there are also first burnt tips. I'm about to water her tonight, what should or should not give her? Thanks for your inputs🙏

Leaves. Tips - Burnt

Leaves. Color - Dark-brown

Leaves. Color - Black or grey

1y ago

3

5

Solved

To live starting to turn brown and light color Can someone tell me what is wrong With this gorilla cookies are

Leaves. Color - Dark-brown

5y ago

1

2

Solved

What are this dark blurs?Today I found this dark brownish/bluish blurs on these two leaves. Does anyone know what are they? My plant is on her last weeks and I am not feeding her but with ph'ed water.

Leaves. Color - Dark-brown

Leaves. Color - Mottling

6y ago

3

3

Solved

Brown spots on leaves of joung plant Hy fellow growers. This is my first Hydro grow (DWC) its a Royal Cookie by RoyalQueen and iam feeding with Hesi Grow at the moment at 1.0 EC she is 3weeks old and i have Some problems with rust spots on the leaves. Could anyone help me out please ! Thanks a lot 🤙🏻

Leaves. Color - Dark-brown

6y ago

1

1

Solved

Brown spots on leaves. Can this be because of too high pH of the water (7.5)?Brown spots on leaves. Can this be because of too high pH of the water (7.5)?

Leaves. Color - Dark-brown

5y ago

5

2

Solved

Brown spotting Can someone tell me why some of my leaves are spotted brown? What would cause this? Thank you so much

Leaves. Color - Dark-brown

5y ago

5

4