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Back to Grow Questions
Excess or lack of nutrients?
Willyweed10
started grow question 5y ago
the older leaves are not dark green but light green with burnt tips and sunburn spots. use of light mix plagron with bloom algae. 1.5 ml per half liter of water for two times a week and once only tap water.
Solved
Leaves. Color - Yellow
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CRiSPrGrow
answered grow question 5y ago
that's simple calcium deficiency, you always need cal mag when you grow indoors. hope this helps ! 🚀
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Selected By The Grower
Similar Grow Questions
Solved
6ix6ix6ix
Top new leaves yellowing and twisting.
My problem from the previous question is developing. The new leaves are yellowish and now they started twisting. PH is 5.8 in 6.0 out EC down from 2.0 to 1.75 the lower growth lack this problem, could be light burn? Was 20cm away (150w) Maybe its a deficiency i can’t understand
Week 5
Leaves. Twisted
Leaves. Color - Yellow
4y ago
5
7
Solved
Grishka
Can you identify the issue?
Leaves turning yellow and brown and curling at the tips
Leaves. Color - Yellow
Leaves. Color - Dark-brown
5y ago
2
Solved
heythere12345
What are those yellowish tips? Day 33 speed devil auto/ recently fed 1ml bio grow and 1ml biobloom in 500ml of water, i water every 3-4 days and nutes every second watering. Lights FL 250 W
Leaves. Color - Yellow
5y ago
3
3
Solved
Gundermann
Calcium deficiency or overfed?
Hi. This is about my Apricot Auto which already suffered the yellow tips/edges. I took that as the result of heat/light stress. Now she also developed discoloration and brown spots on some of the leaves. It looks like a Calcium deficiency to me, but I am quite uncertain. Thanks!
Week 7
Leaves. Color - Yellow
Plant. Wilting
Plant. Stem - Red or purple
1y ago
8
4
Solved
buddhi_coop
Yellow tips on new growth
What do the yellow tips on new growth mean?
Leaves. Color - Yellow
Leaves. Other
Feeding. Deficiences
5y ago
1
1
Solved
Dean1
Lock out or Finnishing off
Having some leaf issues on one of the orange sherbet other plants are ok all on the same feed did some bud removal about a week ago she’s more or less done just trying to get some of the airy budz to fatten up around the bottom thought I’d come straight to the experts on GD🙏🙏🙏
Week 12
Leaves. Color - Yellow
5y ago
2
1
Solved
DuckeedWizard
Why she's sad?
Sorry for the pic quality lol She has burnt tip and yellowing on the leaves and shes very very slow
Week 2
Leaves. Color - Yellow
2y ago
6
1
Solved
anacleto
Nutrient deficiency
What kind of deficiency these leaves are showing? Can this be lack of nitrogen? I am using a lower amount of BioBizz Grow these days (1ml/L), passing to BioBizz Bloom and Top Max as they are in the middle of the flowering stage. In case, should I integrate with more BioBizz Grow?
Week 6
Leaves. Color - Yellow
6y ago
3
3
Solved
Deckerno
Losing colors :'(
I watered only 2L of water without nutrients this week (pot 30 L) You can see it on the diary photos, the plans have lost their colors (yellow). I wanted to know what exactly it was due to, because I read on the net a lack of nitrogen but I would like the expert opinion Thanks !
Week 5
Leaves. Color - Yellow
Leaves. Color - Pale
3y ago
16
9
Solved
Waveform
Oldest leaves turning yellow
What could be the cause of oldest leaves turning spotty yellow on 3 week old plants? They got nutritients end of last week for the first time, but not that much.
Leaves. Color - Yellow
2y ago
2
2
Solved
HappyGrower420
Yellowing seemed to stopped spreading ,im not sure what deff is that .No yellowing on the small leaves on the buds . I gave some cal mag 1 week ago and spreading seemed to be stopped but it turnes so yellow very quickly
Week 4
Leaves. Color - Yellow
7y ago
3
5
Solved
indianqueens
Yellow mottled leaves with burnt edges
Help. After months of babysitting my "autoflowering dwarf" it's finally started flowering. In the last week though all the leaves have become mottled and yellow with burnt brown edges. What can I do to save her?
Week 19
Leaves. Edges burnt
Leaves. Color - Yellow
Leaves. Color - Mottling
6y ago
1
1
Solved
mck372
mid-flower yellow leaves
Hello! I'm growing my first non-auto, a SkittleZ, it got quite small and the leaves are yellowish,I'd like to know what mistakes I made and what I can do to help her Mars Hydro TS1000 and only BioBizz nutrients. Temp is around 18C at night and 25/26C during the day, 40% hum
Leaves. Color - Yellow
Feeding. Deficiences
1y ago
2
6
Solved
masterofsmeagol
Leaves are turning yellow and dieing. Looks just like nitrogen deficiency but my PH has been running high. Could someone look through my latest entry?
Interior lower and middle leaves turn yellow and die. Seems like nitrogen def. PH measured w soil meter read 7.3, 7.4, 7.5 at the highest. Plants are huge. Have the just used up soil nutes and I need to increase feeding or is it PH and how to fix. Water pH is good. Plz see diary
Week 17
Leaves. Color - Yellow
5y ago
4
2
Solved
ZHunterZz3
Yellowing leaves with brown spots
Experiencing some yellowing leaves with brown patching on this plant, I checked the plant doctor site and no deficiencies really matches the description 100% so it's left me scratching my head. What do you think it could be?
Week 6
Leaves. Color - Yellow
6y ago
1
1
Solved
EvilAbedii
Leavs turn yellow and fall off
leaves of my plants are loosing color slowley, turn yellow, sometimes develop brown stains and eventually fall off. It started in middle of the plant on lower leavs and then spread.
Leaves. Dropping off
Leaves. Color - Yellow
5y ago
2
Solved
Smokin_Joe
Leaf Discoloration - Hopefully Nothing
I'm looking to rest my concerns that these removed fan leaves from lower/center canopy are not simply just appearing so due to lack of light and prior plant tie damage. Focus on the yellow/brown discoloration, actual physical damage is accounted for. More details in main post.
Week 8
Leaves. Color - Yellow
6y ago
3
3
Solved
AADGrow
Leaves full of brown spots
My friend doesn’t have a grow diary but he uses advanced nutrients and feeds when almost dry. He has this problem on his leaves and he can’t seem to stop it. I suggested calmag but he feed it 2ml per litre on sunday and the problem is still increasing. What else can he do ?
Leaves. Color - Yellow
Leaves. Color - Mottling
Feeding. Deficiences
4y ago
1
3
Solved
JordanThe420BarB
Only Fan leaves starting to turn yellow?
Why are only the Fan leaves starting to turn yellow from the outside inward? All other leaves are okay and green. Blueberry Auto 10 weeks old, organic soil grow. Should I remove? Comming up on the flushing period soon.
Leaves. Color - Yellow
2y ago
6
5
Solved
stumay111
Yellow new growth
In the two pictures dated 7/28, both plants same watering, nutes, soil, everything. Yellow new growth on GG1. Tried adding N, no help. Might try flush. Opinions?
Week 2
Leaves. Color - Yellow
6y ago
1
2