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

Iron deficiency?

TripleCcannabisstarted grow question 5 years ago

I suspect this is an iton deficiency due to excess phosphorus. Opinion? Im using GHE flors trio and added som Gro to make Gro Micro and Bloom in solution at a 1:1:1 ratio. Also added Cal Mend by Dutch Nutrients. Pic are 6 hours apart of new growth.

TripleCcannabis

Solved

Leaves. Color - Yellow

likes

advice

Grey_Wolfanswered grow question 5 years ago

does look like it mate Do you have any chelated iron you can spray on the leaves

likes

Complain

Selected By The Grower

TripleCcannabisanswered grow question 5 years ago

No I dont but my cal mend has some iron in it.

likes

Complain

Similar Grow Questions

Solved

Blätter gelb und fallen ab Blütewoche 9 Aktuell machen mir meine Pflanzen echt Sorgen, viele Blätter werden sehr schnell gelb und fallen von allein ab obwohl ich bei jedem gießen Dünge. Sollte ich noch mehr düngen und häufiger gießen? Die Buds sehen soweit gut aus nur sind bis jetzt immernoch mehr weiße Haare als Blüte

Leaves. Dropping off

Leaves. Color - Yellow

9 months ago

7

3

Solved

Start on nutes?Should I start a low dose of nutrients? Looks a little yellow in the middle. Does it need a little more nitrogen?

Leaves. Color - Yellow

9 months ago

2

2

Solved

Potassium and Calcium deficiency?Both plants are autos on day 49 after sprouting. Plants didn't get any fertilizer during veg. I noticed deficiencies about 2 weeks ago, and added BioBizz Bio-Bloom, Top-Max and CalMag to next waterings. Planning to alternate water and feeding for the rest of the grow. any advice

Leaves. Tips - Burnt

Leaves. Color - Yellow

Setup. Strain - Autoflowering

9 months ago

2

3

Solved

Iron Deficiency?Appear to have an iron deficiency, perhaps as a result of lock-out. May have been triggered by light stress or environment changes. Living soil media, watered with rainwater, supplemented with compost teas and organic soil drenches pH to 6.5. Seeking advice as to how to correct

Leaves. Color - Yellow

Setup. Strains - Photoperiod

Setup. Outdoor

9 months ago

3

1

Solved

Fan Issue 1 plant has yellowing leaves only at top of a few main colas. Other plant fine. Lower buds on both plants are fine. Light is at 62000 LUX (it's all I have), max is 75000. Forgot to press oscillate on fan after watering. 2 days gone, affected plant got no fan. Nutes same 4 both.

Leaves. Color - Yellow

9 months ago

6

5

Solved

Leaves yellowing Disclaimer: the question is about another OG kush plant that's growing in the same tent as the OG kush in the diary. Same age, feeding and conditions. The leaves on the said plant are getting yellow and browning on the edge. My tent does get hot at times. Any ideas?

Leaves. Color - Yellow

9 months ago

1

1

Solved

Soft hanging yellow leaves, some with brown spots in the middle. Deficiency, Nutrient Burn or what could cause this ?Hey guys, I got a problem with two of my 4 plants. They started to develop yellow droopy and soft leaves that start to fall off on their own. I’m not sure if it’s a nutrient deficiency or blockout from ph or something else. I watered them only with water ph 6.5.

Buds. Not fattening

Leaves. Dropping off

Leaves. Color - Yellow

9 months ago

3

Solved

Nutes Deficit - Yellow lower leaves and yellow tips. What to do?

Leaves. Tips - Die

Leaves. Color - Yellow

Feeding. Deficiences

9 months ago

3

1

Solved

It's: My leaves are yellow Part 6000 White Widow Auto CBD Soil Mid of week 2 of Vegetation Outdoor, gets sun and led Watered with neem oil and potassium soap (had thripses) Now released lacewing larvae. Fertilize with these two mineral fertilizers Bio Nova Autoflower Supermix and Bio Nova X Cel h Leaves need...?

Leaves. Color - Yellow

9 months ago

1

1

Solved

Unknown Deficiency GG#4 Auto (week 10)Hi folks, my GG#4 Auto has this strange coloring on some leafes in week 10. Can’t find a deficiency that fits this pattern. Any ideas? Best regards 💪

Leaves. Color - Yellow

9 months ago

2

2

Solved

should i be worried?8 weeks in flowering and now I have some yellow leaves, normal?

Leaves. Color - Yellow

9 months ago

3

4

Solved

Yellowing leaves Lower leaves are turning yellow, these seem to be one that are hidden a bit from sight, so possibly not getting enough light, but it seems to be spreading, and one of them has fallen off. Is this some form of nutrient difficiency, or something simipler?

Leaves. Dropping off

Leaves. Color - Yellow

9 months ago

4

3

Solved

Gelbe Spitze Habe Probleme hauptsächlich an der Spitze und vereinzelt an der Pflanze! An der Spitze ist es nur am auffälligsten.. Kann es Lichtbrand sein?

Leaves. Curl up

Leaves. Color - Yellow

9 months ago

1

1

Solved

Lower leafs getting yellow tips and spots I just noticed that the lower leafs are dying, while other leafs are getting yellowish spots. Is this some kind of nutrient deficiency? The leaf with the yellow spots is near the air intake. They didn’t get any fertilizer except root juice since the soil is still somewhat fresh.

Leaves. Too few

Leaves. Tips - Die

Leaves. Color - Yellow

9 months ago

1

1

Solved

Yellowing, wilting, stunted growth Can anyone please help me identify whats wrong with them. I've done a flush, adjusted the lights, reduced the nutrient strength, I've pretty much done everything and still stunted growth and they are still looking weak and frail. I'm lost and I don't even know what's wrong.

Leaves. Curl down

Leaves. Color - Yellow

Leaves. Color - Pale

10 months ago

1

5

Solved

Yellowing from the top Runtz Auto Week 6 of flowering Growing hydroponics using silica, MJ plant prod finisher, cal mag, hydroguard, root drench, bud enhancer and sweetener. Mixed exactly in that order. pH 5.9 (using pH pen for readings) yellowing from the top I don't have ppm/EC meter or light meter

Leaves. Tips - Burnt

Leaves. Color - Yellow

9 months ago

3

4

Solved

make_weed_not_war

Yellow leafes with Brown circles So the Easy Bud in the tent Looks Like trouble. The Leafs turn yellow with brown circles… im clueless what It could be but it does not look Healthy. The Leafs at the deepest bottom Look Fine… All Others dont Look good..

Leaves. Curl up

Leaves. Color - Yellow

Leaves. Color - Dark-brown

10 months ago

1

2

Solved

Yellow tips at bud-leafs What is the worst case of what could happen to the buds and the harvest due to the yellow tip burn? Since 5 days the near leaf buds have yellow tips. It could have any reason. Flys, high ph, to high nutients. Already watered with neem oil and gave citrusjuice in water to lower p

Leaves. Tips - Burnt

Leaves. Tips - Die

Leaves. Color - Yellow

9 months ago

4

4

Solved

Am i overwatering my plant ? Im a noob Did i overwater my plant? Symptoms are curled leaves, leaves are yellowing from outside to inside, tips are brown Im watering once the first 3 cm are feeling dry with 1/10 of Pot Volume so 800ml. Im using BioBizz BioGrow as a Fertilizer. Im in Week 6 of Veg

Leaves. Tips - Die

Leaves. Curl down

Leaves. Color - Yellow

9 months ago

1

1

Solved

Whats wrong with her Watering every 3-4 day with around 1,75 Liter, Ph 6,3. Once a week feeding biobizz fertliza, about 1/3 of the recommend amount. It started 1 day ago, after watering and feeding.

Leaves. Tips - Burnt

Leaves. Color - Yellow

9 months ago

1

1