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
Fan leaves
hoosierj
started grow question 6y ago
My fan leaves look rusty
Open
Leaves. Color - Dark-purple
likes
Answer
MadeInGermany
answered grow question 6y ago
Hey Bro :-) Try to increase Cal / Mag a little :-) then it should get better 🙏🏻👌
likes
Complain
Similar Grow Questions
Solved
smalltime
Dark bluish leaf tips
Is this dark bluish tint to the leaves an issue? It is only on the the main stalk, She otherwise seems very happy.
Week 4
Leaves. Color - Dark-purple
5y ago
2
1
Solved
kohlrabi
Reason for red / lilac stems of fan leaves?
The stems oft many of the fan leaves turned lilac over night. Not only the top ones, so I don't think it's stress from the light. Could some light defoliation the two days before be the reason? The only other thing I changed were 5ml of bio Hesi bloom nutrients. Otherwise healthy
Week 5
Leaves. Color - Dark-purple
3y ago
5
3
Solved
Zuzuman
Gorilla Cookie Problem
Ich growe jetzt seit acht Wochen Pflanzen. Einige haben gelbliche Blätter, andere gelb-lila Blätter und viele Blätter haben braune Punkte. Ich weiß nicht, was die Probleme sind. Ich benutze Advanced Nutrients Grow, Bloom und Micro. Grow: 1,5ml/L und Bloom: 3ml/L auf 3L Wasser
Leaves. Color - Yellow
Leaves. Color - Dark-purple
Leaves. Color - Mottling
8mo ago
15
7
Solved
TreeTent310
All my plants have purple stems on the leaves at this point. They look totally healthy besides that. Not sure how to resolve the issue or if it is not even big deal. Just don’t want to negatively impact yield. Any advice?
Week 4
Leaves. Color - Dark-purple
8y ago
5
3
Solved
tangie
Dark purple areas on leaves — genes or environment/feeding problem?
What the heck is this? Is it just purple genes or a stress/deficiency or a combination of multiple factors? I have checked three visual cannabis plant health guides, and did not find a single issue which looks like this. Maybe a combination of 2 factors, but I'm not convinced 😐
Week 9
Leaves. Color - Dark-purple
Leaves. Color - Dark-brown
1y ago
6
6
Solved
MarijuanaMiyagi
Is this Tobbaco Mosiac Virus?!?!
Is this TMV? It has 6.5 ph in and temps remained within normal parameters. Had thrips infest. Mostly gone no real new activity but I think I got Tobacco Mosiac Virus. Never seen it myself before just wondering if I am correct.
Week 7
Leaves. Color - Dark-purple
Leaves. Color - Dark-brown
Leaves. Other
4y ago
3
3
Solved
Dankbudz84
Phosphorus deficiency using canna coco on all auto
I have the entire canna line except boost, I have a phosphorus deficiency (dark leaves with a dark blue tint on new and old growth. Which synthetic bottled nute would be recommend to fix this or do I add more a+bmy ec currently at 1.35 and Ph 5.9. Do you seen any other deficienc
Leaves. Color - Dark-purple
4y ago
2
Solved
Complicate
Is this turning purple from temp change
So it looks like what I thought was a brown spot (under the grow light), appears to be purple when I pulled it out to get a better look and stake it down. I did switch the light to something cooler, could this be from temp dropping. Not worried yet, just curious. Thanks
Week 4
Leaves. Color - Dark-purple
Leaves. Color - Dark-brown
6y ago
1
1
Solved
TheNextGanjaMan
Deficiency, excess or soil problems?
Hi, I need help, I have 4 plants of the same strain and several of the leaves are turning yellow and drying out. Some with a burnt appearance and curled upwards. I'm using a super soil, with water with pH 6.2-6.6 +/-. water with fert once a week for this flora. Fert Use 1xonce.
Leaves. Curl up
Leaves. Color - Yellow
Leaves. Color - Dark-purple
1y ago
5
5
Solved
brownbae420
Catching a fade?
Is this fade normal for a Crème de la Chem? Or is this some other kind of deficiency. This plant has not had any issues. She’s the most healthy of all of them. In the pics I’m trying to illustrate the purple color showing up on some leaves.
Week 10
Leaves. Color - Dark-purple
2y ago
9
3
Solved
Kripoulas
Purple stems, droopy leaves and yellow leaf tips. What's the deal?
What could be causing this unfortunate event? Deficiencies or lights? Over watering? How can I rescue this fellow plant? Thank thy 🙌 Ps. This shot was right after a nutrient watering. Ps2. How can I add my diaries to my questions?
Leaves. Tips - Burnt
Leaves. Dropping off
Leaves. Color - Dark-purple
5y ago
3
3
Solved
SirSmokeALot333
Phosphor or Potassium?
Hey guys got a question on my lady's First pics ist my Blue Dream wich this signs I think this is a phosphor Def or Potassium. And second is my Trainwreck Day 56 buds looking very airy Could this be a lack of P and K? Or Magnesium
Leaves. Color - Dark-purple
4y ago
4
5
Solved
Drgreen13
Leaves turning purple and purple stems
Hey guys, the leaves on the red poison are turning purple, it happened on my last run and i just left it, also the stems are purple aswell like last run, is this something i should be worried about or not? Thanks in advance
Week 6
Leaves. Color - Dark-purple
4y ago
16
9
Solved
Gorrila_Smoke11
Get purple with it
How cold do you have to keep your temperatures in the dark so you will get more purple in your buds ?
Week 6
Leaves. Color - Dark-purple
4y ago
3
6
Solved
Just_Weed
What is this deficiency on new growth, slight yellowing with purple tips? I Increased nutrients to remedy yellowing.
Week 10
Leaves. Color - Yellow
Leaves. Color - Red or pink
Leaves. Color - Dark-purple
5y ago
4
1
Solved
Poz83
Why is has my plant gone purple when flushing for harvest
So I have been flushing Blueberry Cheese for 9 days now, buds arent compact so thinking maybe this is an autoflower? Anyways, since flushing the stems, buds and leaves are going purple and my PPM and EC is still very high in run off. Any Advice please
Buds. Other
Leaves. Color - Dark-purple
Plant. Stem - Red or purple
4y ago
3
4
Solved
GracelessGardens
Purple leaves getting worse!?
So I started getting light purple/yellowing last week, after my last grow question, I landed on potassium deficiency. I gave a healthy dose (2 tbsp in a half gallon of spring water) of Fox farms big bloom (0-.05-.07), within the last 48 hrs and the purple looks worse? Any ideas?
Week 7
Leaves. Curl down
Leaves. Color - Yellow
Leaves. Color - Dark-purple
3y ago
1
Solved
HappySkunk
Deficiency help
What deficiencies are these? I’ve flushed her, ph’ed her water and I’m giving her a good amount of nutrients - no nitrogen for the past two weeks I think. Is this just an age thing? I don’t need her to look perfect before harvest, but I’m afraid it’s affecting the bud maturity.
Week 13
Leaves. Color - Yellow
Leaves. Color - Dark-purple
Other. General questions
5y ago
2
2
Solved
NewbGrower87
N tox in full swing. Lowered feeding from 1 Tsp to 3/4 Tsp Cal/Mag, and Grow/Micro from 1/2 Tsp each to 1/4 Tsp each. Hoping this helps correct. Is it possible that overwatering also contributed to excessive N uptake? I let the coco dry out a lot more (~4 days) this time.
Week 4
Leaves. Color - Dark-purple
7y ago
1
1
Solved
sugar_leaf_daddy
Short LSD auto with deep purple core
end of week 4 and almost no space between internodes, feeding her the same as the other cultivars germinated around same period, same medium, distance from light, same intensity... what am I doing wrong? What about this dark purple core development? HELP!!!!
Leaves. Color - Dark-purple
Plant. Spaces between nodes
3y ago
3
4