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Back to Grow Questions
Yellowing leaves
Bluntblazer66
started grow question 6y ago
Yellowing leaves on young plants Not sure why the plants are yellowing at the bottom I added some calmag thinking it maybe a nutrient deficiency
Solved
Week 3
Leaves. Color · Yellow
likes
Thumbnail83
answered grow question 6y ago
Nitrogen starts yellowing at the bottom, if you have abnormal growth or yellowing on new growth it would be calmag.
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Selected By The Grower
JoseTodoLoco
answered grow question 6y ago
I can't see it clear on the photo. Make sure the PH pen is calibrated, also take a look at the new growth after you added the Calmag
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Mr_Cannab1sir
answered grow question 6y ago
Most likely nitrogen deficiency. I know nothing about hydro though, feed needs increasing if it's draining the leaves. It's basically eating itself to survive
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Similar Grow Questions
Solved
AntonioBanderas
No leaf growth seedlings
Hi, two of my autoflower seedlings are not growing altough they in week 2. Im adjusting light,pH,feeding but no leaf growth. The existing leafs also has a yellow color. Others doing well in same environment. Do you have any suggestions? Thanks
Week 1
Leaves. Color · Yellow
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4y ago
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Solved
TheMechanic
Do I have a deficiency problem or am I ok? 3 lower leaves on both plants started with the tips browning but now the leaves are going yellow. None of the newer growth has been affected but the 3 leaves seem to be getting worse. See pics in week 4!
Week 4
Leaves. Color · Yellow
7y ago
4
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Solved
purgen
Can't deal with yellowing leaves in 4th week of flowering
Been having this problem for a few weeks. I suppose its deficiency of Mag and for the last week or so I've been giving increased portion of CalMag (for 1.5l of distilled water TriPart grow 2.1, micro 2.1, bloom 3, Calmag 12ml). Should I give them more time or its something else?
Leaves. Color · Yellow
5y ago
5
Solved
Mekster
Leaves showing issues. Can I still flip to flower?
Week 5ish in veg. I was planning to flip on Saturday. I’ve had issues the entire grow. Supplemental cal mag feeding have helped.
Week 5
Leaves. Color · Yellow
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2y ago
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Solved
Maycon_heiro
Will this be able to smoke
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Leaves. Color · Yellow
2y ago
7
5
Solved
Popeofdope
Leafs turning gold/dark brown
I have no idea whats wrong with it. I cant seem to catch a break even outside. It allways has to be my favorite plant. Any help is appreciated
Leaves. Tips · Burnt
Leaves. Color · Yellow
Leaves. Color · Dark-brown
6y ago
2
3
Solved
Panda56
Yellow spots on leaves
Are the yellowing spots signs of Leaf Septoria? I'm assuming it's more of a nutrients issue but have never experienced LS and wanted to get some second opinions.
Week 4
Leaves. Veins · Yellow between
Leaves. Color · Yellow
3y ago
1
1
Solved
ganjermaster
Could be this yellowing on newer leaves a light deficency problem?
I'm using a Mars Hydro TSW2000 distance 95cm to the mother plant, 140cm to seedlings and power 55%.. testing with phone app Light Meter I'm getting around 8000 lux in mother and 6500 lux in seedling.. I've raised it to 70% power and now getting around 11000/8000 lux mother/seed
Leaves. Color · Yellow
Setup. Lighting
5y ago
1
4
Solved
Havingago
Yellowing Sugar Leaves
Noticed the sugar leaves on bud leaves are also yellow. My understanding is this can have a big effect on final yield?? Flushed the gal but as no amber trichomes yet and want 20%, should keep flushing now on or resume feeding till some amber??? Cheers
Week 18
Leaves. Color · Yellow
6y ago
6
6
Solved
Maasamenos
Need help diagnosing and remediating issue in flower Yellowing of leaves, splotchy “stains” on leaves, purple on new growth and stems
Been using 1/2 dose big bloom, grow big and cal mag stopped using grow big two weeks ago. Ph water between 5.7-6.5 each time and letting top inch soil completely dry between. Alternating water and feed. Should I wait for it to dry to try a flush? Additional nutes? I’m lost
Leaves. Color · Yellow
Setup. Strain · Autoflowering
2y ago
4
Solved
gogocrack
What's wrong with my seedling?
I don't understand why there is something strange in the leaves of this seedling. It happened to me for the first time, even though I was always raised in the same technique. As a fertilizer I just added 0.5 ml to 1 liter of biobizz grow.
Leaves. Color · Yellow
4y ago
3
3
Solved
AutoZone420
Yellowing Week 4
Is the yellowing present in Week 4 of any concern?
Week 4
Leaves. Color · Yellow
6y ago
1
1
Solved
nevrox
Yellow/brown leaf
One of the leaves on the bottom began to turn like yellow/brown-ish with darker spots. What am I doing wrong?
Week 3
Leaves. Color · Yellow
6y ago
4
3
Solved
Splifflicious
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Any suggestions on the yellowing first leaves issue #Day19? Is that a Cal or Mag def ? Been watering with tap water left for 24h. Would RO water be better ? Does feeding with RO water on the entire life cycle involve to add more nuts ? I currently have only AN micro/grow/bloom.Tx
Week 3
Leaves. Color · Yellow
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Other. General questions
6y ago
1
2
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
Abacus
Need opinion
4/5 week to harvest.. do they look good? And why some leaves are becoming light green?
Leaves. Color · Yellow
Plant. Spaces between nodes
4y ago
3
Solved
4lbi4
Anyone know what it could cause the yellowing leaves in the gelato?
Week 7
Leaves. Color · Yellow
4y ago
5
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Solved
aBUDabove
Leaf Diagnosis Needed
I need help. Leaves are turning yellow at top of plant only. And only on American Pie. Not Northern Lights. I am using a Sonlipo SPC2500. Bloom mode. Is it possible to have lower ppfd levels and still get light burn? Thanks in advance.
Week 9
Leaves. Color · Yellow
4y ago
6
3
Solved
NIagaraFalls420
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Week 9
Leaves. Tips · Burnt
Leaves. Color · Yellow
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6y ago
1
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Solved
farah4weed
Yellow and pale leaves of plants. Purple stems.
The week before flowering, I flushed the pots and brought the tds to 700ppm. Don't you think the leaves are dull? I feel there is a problem??
Week 12
Leaves. Color · Yellow
3y ago
25
6