The Grow Awards 2026 🏆
Start My Diary
Start My Diary
Login
Start My Diary
Home
Diaries
Strains
Shorts
Questions
Contests
Growers
Seeds
Breeders
Nutrients
Equipment
Blog
Login
Sign Up
Following
Follow
Brands
&
Growers
to get updates
Back to Grow Questions
Rust spots on leaves
Aragon
started grow question 5y ago
What are these weird rust spots? I'm guessing too much cal-mag?
Solved
Week 4
Leaves. Color - Yellow
likes
TimTheTerpMan
answered grow question 5y ago
Looks like a possible deficency crawling in. She's looking light in color also. Try feeding with a higher nutrient dose. 🤘😤
1 like
Complain
Selected By The Grower
Similar Grow Questions
Solved
Bingeling
Yellowing leaves on bottom of plant, end of stretch to start of flower. Am i seeing a deficiency?
Hi GD, Im in week five and i started to notice some bottom leaves on my girls slowly turning yellow. Could this be due to them barely recieving any light? or starting defeciency? I am on the feed schedule in the pic, and watering with a ph of 6-6.3 (every 1-3 days, when dry)
Leaves. Color - Yellow
Setup. Strain - Autoflowering
3y ago
2
1
Solved
minigroww
Burnt tips and yellowing leaves
About two week ago, lower leaves started yellowing, and I saw burn leave tips, so I suspected nutrient burn. I only watered with tap 6.5 pHed water since, but the burnt tips and yellowing are getting worse continuously. At least 3 largest lower leaves died off over the period.
Week 6
Leaves. Tips - Burnt
Leaves. Dropping off
Leaves. Color - Yellow
5y ago
1
5
Solved
561honda
Is this led light burn ?
Ph is on point 6.2 run off is 6.0 no nute burn
Week 10
Leaves. Color - Yellow
4y ago
1
9
Solved
CrankledLarkus
Leaf damage/discolouration
The Skunk has been getting a lot of leaf issues. I have been trying to stay on top of picking them off as they appear in case it's rust or similar and can spread. It almost looks like cal mag deficiency, but I'm feeding cal mag each feed. This is the only one effected out of four
Week 12
Leaves. Color - Yellow
Leaves. Color - Dark-brown
6y ago
2
2
Solved
Dreamchvser
Nutrient Burn or am I missing something ?
Hey i got a problem with two of 4 my plants, I feel like it’s a nutrient burn, cuz I accidentally fed them with the flower schedule one time. What do you guys think ? Any advice?
Leaves. Tips - Die
Leaves. Dropping off
Leaves. Color - Yellow
2y ago
2
1
Solved
Mazgoth
SPIDERMITE PRODUCT
Hello guys,before 3 days ago I mix 2.5 ml of spidermite product and 100 ml water because having issues with bug,the plant was looking good but now Im worried that leaves having some problem,do you think should I wash them with pure water? What should I do about this,
Week 3
Leaves. Color - Yellow
3y ago
4
Solved
Ozzyozz88
Is this potassium definitely ? Week 8
Is this a potassium deficiency I see ? plz help week 8 of lowering
Leaves. Color - Yellow
4y ago
1
3
Solved
JuicyFruit
On all 3 of my plants im getting yellowing leaves, big brown cripsy patches on the leaves and then when then yellow leaves weaken they fall off. i have flushed and changed PH to 5.7 and will now recalibrate ph pen. anyone want to weigh in? Cheers!
Week 7
Leaves. Tips - Die
Leaves. Dropping off
Leaves. Color - Yellow
6y ago
2
2
Solved
Jake13255
Browning leaves? Did a soil slurry and dropped the water from 6.8 to 6.2. Does that mean it’s locking out? How should I go about fixing this? In peat pearlite and worm castings. Added about 6 cups of lime to the 20 gallons of soil thought that should have helped the ph?
Week 3
Leaves. Curl up
Leaves. Color - Yellow
Leaves. Color - Dark-brown
5y ago
1
Solved
420cropper
Yellow Leaves
Can anyone give me an answer as to why this one plants starting to get a yellow colour coming threw in the middle of the leaves? I don’t think it’s due to heat as the other plants are growing a nice green
Leaves. Color - Yellow
5y ago
1
1
Solved
JustAnotherGardener
High TDS and low ph runoff - Lockout? deficiency?
Struggling with some bad soil (beginners mistake). I water with dechlorinated tap water at around ph 7.4 and 400ppm (not feeding yet). But runoff ph is 6 and around 1000 ppm. Am I dealing with a N-lockout? why such a ph difference and high TDS value?
Leaves. Color - Yellow
Feeding. Deficiences
5y ago
4
5
Solved
CANNA_401
Stickstoffmangel?
Könnte das ein Zeichen für einen Stickstoffmangel sein? Diese verfärbungen kann ich momentan bei beiden Purplematics beobachten.
Week 5
Leaves. Color - Yellow
2y ago
2
1
Solved
rvarsk
Discoloration on leaves - yellow
Whats up with the discoloration on the leaves on this one plant? Most recent upload 7-30-21. I cant quite find a matching picture. No other plants have this issue and it was this way pretty much from the start. Thank you Soil is ffof, ph 6.5 water
Week 2
Leaves. Color - Yellow
4y ago
2
2
Solved
EvilGrower
Leaf discoloration - light and dark splotches
Hello! Any ideas as to why my leaves have splotches of discoloration? 😅 It appears that one leaf has light 💀 patches while the other leaf has dark. 👹 Thanks for your time! 🙌
Week 2
Leaves. Color - Yellow
Leaves. Color - Black or grey
6y ago
2
3
Solved
Tbag2020
Leaves not looking healthy
I have this plant on 20/4 with PH 5.5-5.8 its an auto from fastbuds, not sure why the leaves keep burning like this? Can someone help please
Leaves. Tips - Burnt
Leaves. Color - Yellow
5y ago
2
6
Solved
Maryjewarna
Yellow edges
I got yellow edges that eventually die off? What is the main cause please. Cheers
Week 3
Leaves. Color - Yellow
5y ago
5
4
Solved
ReginaldJohnstonX3
Late Flower Rapidly Yellowed Leaves
The yellowing leaves have definitely progressed quite a bit in this last week. Does this look like a normal natural late flower nitrogen deficiency? I still want to flush the plant, wondering if I should start the flush now because the leaves are already starting to get yellowed.
Week 19
Leaves. Color - Yellow
4y ago
5
4
Solved
Paul71
Idk what's wrong
Can anyone help me figure out what's wrong with this baby? Special queen photo, week 8 of veg, organic pellet fertilizer added directly in soil. Always watered just water, seemed so healthy till last week, then leaves started yellowing a bit.. Nutrient deiciency/excess? Wdy think
Leaves. Color - Yellow
Feeding. Deficiences
Techniques. Topping
2y ago
2
Solved
Herikus
Help, what are those weird yellow spots in late veg?
Hello everybody, I've checked in on my plant after I was away from home for 2 day. Now I come back to see these ugly yellow spots? During day 23°C / 55% humid. During night 18°C / 50% humid. Checked the whole bud, but no insects. My other ideas are mold or stress from the light?
Leaves. Color - Yellow
Leaves. Other
Other. Mold
1y ago
1
2
Solved
UKAgent47
Yellow patches on old leaves
Hey, hoping I’m right in thinking she needs some nitrogen? Ph soil is 6.1 Biobizz All mix soil. Thanks in advance.
Leaves. Color - Yellow
3mo ago
6
4