The Grow Awards 2026 🏆 
Rusty brown spotting on upper fan leaves, too much Tiger Bloom or deficiency?
puppetmaster77started grow question 4y ago
Hindu auto, week 11 started seeing rusty brown spotting on upper fan leaves. At this point I was only using tap water and 4 tsp/gal of tiger bloom. That is aggressive so I backed off to 1.5 tsp. I watered with cal mag 1 tsp just in case it was deficient. Ideas? Buds seem ok.
likes
Hazemaster420answered grow question 4y ago
I wanted to say it’s calcium but when the leaves turn like that it’s too much sauce, it’s nuts burn for sure, ease up on those nutes! Looks good though!
ThinLizzyanswered grow question 4y ago
Looks like you have a phosphorus issue. I would check your ph. Phosphorus availability decreased with increase in pH.
1 like
Complain
Hashyanswered grow question 4y ago
Increase your bloom strength she wants more phosphorus and potassium.
1 like
Complain
Similar Grow Questions
Solved
Jake13255
What is this deficiency?They started off with some brown spots and progressed. Is this phosphorus? I have been feeding with .5-1ml of dyna grow bloom and 2ml of cal mag per gallon watering at about 6.3-4 ph. But i recalibrated my ph pen and did one water since.Leaves. Color - Yellow
Leaves. Color - Dark-brown
5y ago
4
4
Solved
Magic43562
Brown spotsBrown spots only on 1 leaf, is this a problem? Wasn’t there this morningLeaves. Color - Dark-brown
5y ago
4
3
Solved
hanniversary
Brown tips curled upSo my plants are in a glass greenhouse that can get very hot on a sunny day but its not always scorching. one out of two plants has brown tips curled up on the all the leaves. Should I be worried about this? Thanks very much !Week 7
Leaves. Color - Dark-brown
5y ago
2
2
Solved
BrannabisTHC
PH problems?Hey growers! These purple haze is in their 2nd week of flower. Only one of the two phenos are showing these symptoms. What might have caused this?Leaves. Color - Yellow
Leaves. Color - Dark-brown
4y ago
2
Solved
KINGT88
Trash or can she be savedCan she ne saved or no! :/ I thinks it's a no go, idk what went wrong can she be saved or noLeaves. Dropping off
Leaves. Color - Dark-brown
Plant. Wilting
3y ago
1
4
Solved
Kommandant666
3 identical plants, 3 separate issues... Help?3 girls, same strain, same schedules, same nutes. No Pests. All have different issues. 1 = yellowing/brown spots, low terpene but good bud growth, 2 = Low terpene production, 3 = Skinny buds, normal terps Any ideas what could be causing them?Leaves. Tips - Die
Leaves. Dropping off
Leaves. Color - Dark-brown
3y ago
3
5
Solved
Coconut_kiss
Discoloration and brown tipsNutrient burn or something else?Leaves. Color - Dark-brown
6y ago
1
4
Solved
Splifflicious
Yellow bottom leaves/brown spots on bottom leavesHi guys,
So 4 or 5 bottom leaves of my 7thWeek autoflower looked like this and I ripped them off. Is that ok or did I harm her?
Anyway, is that a Calcium def? Should I give her some CalMag? Could it be something else?
Besides this, the general condition of the plant is good.
Tx!Leaves. Color - Yellow
Leaves. Color - Dark-brown
Leaves. Other
5y ago
3
Solved
ekkoz897
Light burn, light burn due to humidifier water lights?What do you think caused this brown color on that leaf? I have 5 leaves like that, all the others are ok.
I believe it's due to pulverizing water and droplets acting as magnifiers for the light, causing small burns.
Also, since they are burnt, should I just cut them out?Week 7
Leaves. Color - Dark-brown
2y ago
4
6
Solved
Tiz_aka92
Leaf Issue!Could someone help me understand whether there is a problem a deficit or an excess.Leaves. Wilting
Leaves. Color - Dark-brown
Leaves. Other
2y ago
5
6
Solved
Unpluggy
Deficiency?! Please help with weird Leaf signs :(This Plant didnt have any problems in This whole run.
Sinne 1-2 Weeks she started showing These weird signs and i cant figure out what it is.
I thought it could maybe be phosphorus deficiency or something.
Got a lot worse in the Last few days! :((Leaves. Color - Dark-brown
Leaves. Other
2y ago
1
Solved
Dandamans
I believe I light burned my plants when I put in my second 300W LED. Plant's yellowing on tops and drooping and canoeing. Have just switched to 12/12 light 4 days ago. And started to feed Flowering mix of 9ml pure blend pro and 1.5ml cal-mag per 4L. Feed every water.Week 10
Leaves. Color - Dark-brown
7y ago
2
1
Solved
Dillsnills
Advice on what's going on with this plant some yellow and brown on the leavesLooking for help to diagnose what's going on w this plant,did a mini flush ppm runoff 610 intake 345ppm, wk 7 flowering Girl Scout Cookie Auto GardenOfGreen, should I do a nute feeding next,FF chaching,big bud? Ph6.5. Advice input opinions greatly appreciated.Leaves. Color - Yellow
Leaves. Color - Dark-brown
Feeding. Deficiences
5y ago
1
1
Solved
JuanHaze_Arg
Deficiencia o exeso de K?¿Deficiencia de nitrógeno? ¿Deficiencia de fósforo? ¿Deficiencia de calcio? La auto m haze tiene manchas amarillas en las hojas grandes más superiores. Las hojas más viejas del tallo principal están pálidas y con manchas como rosados, los peciolos están púrpuras. Más info entrar3y ago
4
1
Solved
Ag10KSA
Since i have bad judgment on colors ...Please can someone tells me what is the percentage of cloudy and clear colors in here?? This is 6 week fast flowering strain but she is starting week 8 in day 55 flowering..flushed 10 days ago tho .help plzWeek 8
Leaves. Color - Dark-brown
7y ago
4
6
