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Back to Grow Questions
Purple leaf
ThatItalianGuy
started grow question 6y ago
Why some leaves are getting purple ?
Solved
Week 8
Leaves. Color · Dark-purple
likes
AlpineGoat
answered grow question 6y ago
Lack of phosphorus in the advanced growth stage, my friend! Look for something at your trusted grow shop to fix it ;) Happy harvesting, and check the chat!
2 likes
Complain
Selected By The Grower
Weedovaurus
answered grow question 6y ago
temperature can be a high factor or maybe something about nutrients
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Complain
Similar Grow Questions
Solved
jen_zee
Slush Mint Cake - purple leaf tips
Hi Community, I need your expertise :) I am not sure if this is the strain or if this is a deficiency - harmful or not… My Dutch Passion Slush Mint Cake is in flower week 4. Some leaves show purple/rusty tips. I checked some deficiency guides - I did not really get a clear answe
Leaves. Color · Dark-purple
4mo ago
2
2
Solved
Ner0z
Stunting and discolouration
I want to identify the problem. Plants are 12 days old, stunted with some discolouring on the leaves and some purple stems. Leaves curling down. Medium is promix hp. Ph in 5.9-6.1. Runoff 6.5. 1 light feeding done day 9. Lights 30" 50% pwr. 72-76c 72% RH
Week 1
Leaves. Curl down
Leaves. Color · Dark-purple
Plant. Stem · Red or purple
6y ago
4
1
Solved
SaiMutsu
N or P deficiency?
Need help to understand if this is P or N deficiency. It's on the lowest fan leaves, one is more pronounced than the other, and it's mostly on one side. Stems and veins look like they're giving hints of P def but from what I searched leaves look like it could be N def.
Leaves. Color · Dark-purple
Leaves. Color · Dark-brown
2y ago
3
3
Solved
Vincent11
Purple Leaves RQS Organic Grow
Hi everyone. This is my first fully RQS organic grow. So not sure normal or not.No cal mag used only organic fertilisers from RQS Organic Easy Boost and Easy Combo Booster Tablets. I have some purpling on the leaves? Is it normal for Organic grows? Or it's Calcium deficiency?
Leaves. Color · Dark-purple
7y ago
5
5
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
2y ago
6
6
Solved
Scrumpy
Leaf colours
Some concerning leaf colours beginning to emerge.I suspect it is some kind of nutrient deficiency, which I accept as I'm not feeding, but would be good to know for sure all the same. Weird that its just on the one plant despite them both having in the same growing medium etc
Week 8
Leaves. Color · Dark-purple
6y ago
1
1
Solved
free_baby
Big dissease
I think i have nutrient lock out but don’t know how to fix it it, its 3th week of bloom and its an outside plant. Its getting colder 9 degrees C at night and around 20 at day. Its been raining a lot recently maybe that has something to do with it.
Leaves. Edges burnt
Leaves. Color · Dark-purple
Leaves. Color · Dark-brown
1y ago
4
4
Solved
Sparkle_Party
Yellow and purple leaves
I stopped feeding beginning of the week because I had yellow tops on one of my buds. I think it is causing yellow leaves. Does that sound correct? Also I am seeing sort of a purple colouring on some of the leaves. Is that okay?
Leaves. Color · Yellow
Leaves. Color · Dark-purple
4y ago
4
Solved
mariothejerkpalma
who has some experience with placing Ice on soil to get nice colours? I would love if one go these PKs turned im not sure if Ice water and or Ice works? I am leaving the fan on high to get a colder temperature at night so I guess we will wait and see.
Week 10
Leaves. Color · Dark-purple
7y ago
1
1
Solved
G4NJAG4NG
Hi Growers, my tent has recently hit some low temps at about 15 degrees lights off, I have now improved the temps by a few degrees to about 17 at lights off. Purple is showing on my stems probably caused by cold but purple also showing on the back of leaves? Should I worry?
Week 3
Leaves. Color · Dark-purple
8y ago
2
1
Solved
WeedBerry
Leaves looking unhealthy
Hi growers i have a slight problem I'm starting to get my leaves discoloured and it doesn’t look healthy please help •Dark patches •Light and dark green leaves •Brownish Red Spots starting to appear
Leaves. Color · Red or pink
Leaves. Color · Dark-purple
6y ago
1
Solved
PEAKYPLANTERS
the purple leaves
hey guys ... my girls started to make the tips of the purple leaves: o !!! In your opinion, is it a deficiency or a question of genetics? for fertilization use graded release pellets
Week 10
Leaves. Color · Dark-purple
6y ago
3
3
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
4y ago
1
Solved
Majky1544
Deficiency? Help me...
Hey guys im having a problem with my gorilla cookies auto.it's 8 weeks from seed, growing in plagron pebbles, drip system, EC now 1.8, PH 6-6.5. light viparspectra xs1500 pro, height approx 30 cm. Nutrients - advanced nutrients
Leaves. Color · Dark-purple
Leaves. Color · Dark-brown
3y ago
1
2
Solved
Edwardlongshank
Telos 10 Pro LED Grow Light - 285 Watt' - 1.2 Indoor Tent. Temp 24c - 18-6 lights PH 5.8 CoCo. Day 15 Photoperiod. Not looking good first attempt any ideas how I can get these back on track?
Leaves. Color · Dark-purple
Feeding. Other
6y ago
1
Solved
DogterB
Purple on new growth?
This color change started a few days ago with my new growth. Is this normal? Deficiency? Something to freak out about? It looks cool but I don’t know what is going on.
Week 5
Leaves. Color · Dark-purple
6y ago
1
1
Solved
ohcibi
What’s this dark coloring?
One leaf, well on fact just one finger has this darkish coloring. It doesn’t look to different from typical end of life leaf coloring it’s just exceptionally dark. It’s the only stress sign and it looks fine from below. It also feels healthy. Not limp, not dry. Anything to worry?
Week 12
Leaves. Color · Dark-purple
7mo ago
10
7
Solved
hooolian
purple sugar leaves - late in life
Some of the sugar leaves have a purple tinge to them in the their final weeks - what is causing this? I have had the same happen to my photoperiod WW X BB.? Thanks :)
Week 10
Leaves. Color · Dark-purple
4y ago
2
2
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
4y ago
5
3
Solved
Lew420
Leaf diagnosis required
green love potion almost a full 5wks into flower and today I noticed some rusty spots on a few fan leaves as well as purpling at the tips. The only leaves affected so far are the one pictured and they are near the bottom of the main cola, is this anything to worry about?
Week 8
Leaves. Color · Dark-purple
Leaves. Other
5y ago
5
3