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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
InhaleXhale
Seedling yellow leaves
Two weeks ago I started these 3 seeds, all of them are in the same soil but two of them have yellow leaves. Maybe someone can tell me why. I think it is not normal in this young age. Please look at the pictures to compare the three plants. Thanks for your help!
Week 1
Leaves. Color - Yellow
6y ago
4
3
Solved
GhostGuyFarm
Leaves curl
I'm here again with a questions. There is a problem with my cheese. CalMag added, nutrients added, and leaves still have problem. They curl a lot. Check this photos, it looks like she eats itself... What's going on :O
Leaves. Curl up
Leaves. Color - Yellow
4y ago
4
8
Solved
NCgrower252
1 of my plants (A.Gold) has 2 leaves that’s yellow. It’s not on the tips. It’s proximal. It’s been Like that from the beginning of Veg. Any tips or ideas on what this is and what I should do about it?
Week 4
Leaves. Color - Yellow
4y ago
1
Solved
Jeffrokush
Yellowing of the two lowest Leaves!!!! Dang I knew something didn’t look right!
I started having yellowing of the lowest leaves also a tad bit in the middle leaves all this just beginning in week one of flower. I looked it up and I can’t seem to pin point why since my soil should have enough nutes and I do check my ph before and after no signsplus a newlight
Week 4
Leaves. Color - Yellow
5y ago
3
7
Solved
FeebleSnane
Starting to fade? Or nutrient deficiency?
One of my plants has several fan leaves that are turning yellow/purple, and I can't tell if it's low on N or starting to fade. The plants are 2 days into week 5 of flower with a 9-10 week flower period, so it seems a little early for it to be turning colors like this.
Week 9
Leaves. Curl up
Leaves. Color - Yellow
Leaves. Color - Dark-purple
1y ago
4
Solved
BearBeard
Could this be light burn?
Could this be light burn? Only on top new leafs. Have not fed her any nutes yet. I did lower the light after I did LST by the height difference after bending her lower. Have raised the light back up again but just wanted to check what people thought. Thanks in advance
Week 4
Leaves. Color - Yellow
6y ago
3
3
Solved
Waltwonka
Magnesium deficiency?
Does this look like magnesium deficiency?
Week 7
Leaves. Color - Yellow
6y ago
2
2
Solved
torquesan
Need some help asap
What is wrong with her? :( I am assuming N Deficient, but I also have veeeeeeerryyyy lightly burnt tips so it is confusing to me. The lime-greening of the leaves makes me think N Deficient though.. Any thoughts? I have some new nutes on the way should be getting here tonight too.
Leaves. Tips - Burnt
Leaves. Color - Yellow
Feeding. Deficiences
4y ago
3
5
Solved
guerilla
Yellowing leef and rusty spots
So now iv just noticed. Hiding under some greenery. A yellow leef... Can someone please give me advice on what this is and what to do??? Should i cut it? Increase calmag?
Week 6
Leaves. Color - Yellow
6y ago
5
3
Solved
ritimudir
Yellow color
can i find out how well things are going with my girl, turned yellow .. ph didn’t measure the last one for watering with purchased water (before that there was tap water)
Leaves. Color - Yellow
6y ago
1
Solved
Plants_of_tayoat
Is this overwatering?
I usually make 0.3-0.4 L watering but yesterday I made two facts that are a little more watering (0.5) L and co2 bag added to the tent. How can I fix this? Thanks.
Week 2
Leaves. Color - Yellow
4y ago
2
2
Solved
Osito
Is it time to flush or wait a week?
Hey what’s up grow gang, we’re approaching the final weeks of flowers, but I was curious as to if our grow is ready to be flushed, or if they possibly need another week of nutrients, and also the best flush technique for best results. Thank you for answering in advance!
Week 19
Leaves. Tips - Burnt
Leaves. Color - Yellow
Feeding. Deficiences
3y ago
4
4
Solved
FoxCrow
Seedling White widow yellowing a bit
It look like my seedling is yellowing a bit. Any clues on what is going on? Might is just be the color of the strain?
Week 2
Leaves. Color - Yellow
Leaves. Color - Pale
6y ago
3
4
Solved
Professor_Chaos
Cant seem to shake acidic coco/perlite
Can't seem to shake my acidic reused coco/perlite mix.. Ph going in is 6.2 - 6.3... Runoff is coming out 5.8 - 5.9.. Ive even ran 6.5 thru the mediun and still coming out at 5.8 - 5.9.. Should I try 7.0??? Help please!!!
Week 3
Leaves. Color - Yellow
5y ago
2
2
Solved
BufoAlvarez
Tip burn yellowing
I thought I had the leaf tip burn and curl handled but it’s really never subsided. My temps are 76 at hottest and humidity around 45 to 55. 1 out of 3 plants shows no symptoms but it’s the least mature. I was trying to flush but that seems to not help. Idk anymore, help!!
Week 11
Leaves. Color - Yellow
6y ago
1
1
Solved
Betagemini
Hi Guys I need some advice pleas to stop yellowing all the leafs on the plant. I started feeding her with 40ml of Biocanna Flores per 10l of water 3-4times per week and 2 weeks later a I added 100g of guano. Do you thing it is Potassium (K) defeciency? or it is toomuchPhosphorus?
Week 23
Leaves. Color - Yellow
7y ago
6
3
Solved
CropHouseLew
Phosphorous Deficiency after Transplanting
Having some slight issues with what looks like a phosphorous deficiency in the shorter plant. Is this common after transplanting?
Week 6
Leaves. Color - Yellow
4y ago
5
3
Solved
Quintus
Textbook deficiency/over feed, any advice on wich one ?
Hello guys ! I think i'm encountering a text book deficiency/over feed but can't figure out which one. This is a Frostbanger auto from 24buds in Plagron royal mix at week 4, under 150 led watt. Been giving her only some power roots & power zym with evaporated tap water :(
Leaves. Edges burnt
Leaves. Color - Yellow
Feeding. Deficiences
1y ago
4
Solved
Stinkygorilla
New growth lime green/yellow at centre
Please help me diagnose this deficiency or pest (plant 3 with the yellow new growth) last two pictures, no curling but looks like some pest damage, minor.
Week 15
Leaves. Color - Yellow
5y ago
2
3
Solved
Bootlegelkk
Yellowing weeding cake
Still having a issue 5 days into flowering and my wedding cake has gotten very yellow looking. It hasn’t seem to slow down any but I’ve also applied some nutes yesterday but not heavy as I’m swapping over from veg nutes to bloom. Any advice? I moved fans and lights 18”+
Week 7
Leaves. Color - Yellow
5y ago
3
6