Check the winners The Grow Awards 2026 🏆
Start My Diary
Start My Diary
Log In
Start My Diary
Home
Diaries
Strains
Shorts
Questions
Contests
Growers
Seeds
Breeders
Nutrients
Equipment
Blog
English
Log In
Sign Up
Following
Follow
Brands
&
Growers
to get updates
Back to Grow Questions
Reddening of leaves quite prevelent at top of plan...
mr_h_kovert
started grow question 7y ago
Reddening of leaves quite prevelent at top of plant. Think it might be a PK deficiency. Question being - is it too late to add a PK booster at this stage of flowering? [Or will I have to ride it out?] Thanks, Harry
Solved
Week 10
Leaves. Other
likes
Wicked_Stix
answered grow question 7y ago
Hey looks like she is just starting to ripen up and her natural fall colors are coming out. I dont think it is anything to worry about.
1 like
Complain
Selected By The Grower
Similar Grow Questions
Solved
SurlyMahn
Spotted Leaves?
Getting quite a few spotted leaves. Little help? What’s my issue/solution?
Week 19
Leaves. Other
5y ago
2
2
Solved
jle_bwk
Brown spot on leaf
Hey guys, everything was going great until this brown spot came up. Still very new at Diagnosing deficiency just wanted to see what everyone’s thoughts on this were. I did a foliar superthrive spray yesterday. Day before that was their first half dose of nutrients thanks. In soil
Leaves. Other
3y ago
2
6
Solved
Afterglow
Something unusual
What's wrong with her? Something abnormal is going on. She does not look like cannabis, and she smells like a tomato. And this this no my first grow. Really discouraged. May be @Humboldt_Seed_Organisation can help?
Week 4
Leaves. Other
6y ago
4
3
Solved
moswald14
should I be concerned about this hole on my leaf?
hole showed up today. wondering if this looks like a pest did it or if its something that just happens from time to time. I read that holes can appear in leaves when there isn't enough potassium, but I'm feeding with molasses so that shouldn't be an issue.
Week 3
Leaves. Other
4y ago
6
3
Solved
dfj92
Seedling looking sick/weak/sad, please help.
What could be the reason why the White Widow seedling´s cotyledon leaf and the only 2 mini true leaves shrunk and look a little bit less alive? Background: 4 days after sprouting I removed the wet plastic film , day was hot (86-91F). Light 30 in from the canopy. Stems looks ok
Leaves. Other
Setup. Seedling
5y ago
6
4
Solved
Tree_man
Brown edges fan leaves
Leaves edges been turning dark brown/black then the rest of leaf turns yellow and eventually i can pull it off. Has slowly been happening since adding rhino-k. All buds look healthy trichomes look good have read this is normal hoping to get a experienced growers opinion thanks.
Leaves. Other
5y ago
3
3
Solved
ChickenBurd
Green edge around leaves
There is a green discolouration around the edge of the leaves...any ideas? I thought maybe early signs of over watering. Doesn't seem to be.
Leaves. Other
5y ago
3
Solved
blackrain
Calcium deficiency
I plan on giving a half feeding due to nutrient burn last feed, but with full strength calmag at 1ml/L, I just want second opinions before it comes to it, Ph has been good the whole time before someone mentions Ph for the 15th time :D Calcium deficiency or possibly more?
Week 8
Leaves. Other
6y ago
2
4
Solved
GreenCasper
Bugs or no
Do new cannabis leaves sometimes have defects or missing pieces? Mine seem to have a few missing spots and I’m wondering if it’s bugs or something to keep an eye on?
Leaves. Other
Other. Bugs
6y ago
1
1
Solved
Chilipadi
Slimy oily film on leaf
Noticed a pool of slimy oily film on the top fan leaf. Pic taken after I touched it and smudged it. Doesn’t have any smell and not sticky. Nothing dropped on it. After wiping it never came back. What could it be?
Week 7
Leaves. Other
6y ago
3
4
Solved
kevgrow
Whats wrong with the plant? Is it Male or Female?
Hey guys, its day 23 I noticed this yellow spot on plant #1, overall the plant looks healthy, is it normal for it to turn that color at this stage? Ph 6.10 Ppm 205 Feeding only 1/3 of the recommended nutrients (CalMag, Pure Blend Pro Grow) Is it to early to detect its gender?
Leaves. Other
6y ago
5
5
Solved
scooter112
Anyone know what the slight yellowing on the bottom fan leaves is in picture 1? Also my leaf tips are turning up a little could this be my light is to close or to much fan wind?
Week 2
Leaves. Other
7y ago
3
3
Solved
NomNom
Yellow in the leaves, I've been feeding until runoff on a Sun - Tues - Thurs and just letting it sit in-between. Feeding with a 1.8 EC solution and my runoff starts at 800ppm and then drops down to 500 by the time it's finished. Increase nutes? nutes every day? do nothing?or???
Week 20
Leaves. Other
8y ago
2
Solved
alien_grower
Bundlin up leaves is fine right?
Looking for some human opinion on my alien flowers! leave your thoughts below đź‘˝
Week 5
Leaves. Other
6y ago
2
1
Solved
DINGST
Phosphorus deficiency?
I think this is a phosphorus deficiency. I thought it was because I slightly overwatered the plant. I gave the plant 1.5l water without nutrients then waited 4 days. Then 1.5l water with nutrients will also wait 4 days. The problem seems to get worse. Anyone any advise?
Week 10
Leaves. Other
6y ago
1
2
Solved
ILikeTomatoes
Is this a nutrient burn?
So Im checking the amount of nutrients my plants can take before I turn on the autopots system. Is that a nutrient excess burn?
Leaves. Other
6y ago
1
4
Solved
Capo420
Normal leaves?
Is this normal on young plants? Almost looks like trichs lol .. it isn't powder mildew is it? Also the leaf is weird wavy maybe after effect of the light damage caused by intensity? Again, my apologies for asking so much; I had considered myself very well informed on growing haha
Week 1
Leaves. Other
4y ago
4
3
Solved
Koaxodil
which is which? Runtz muffin or Red hot cookies, now they atleast show some diff leaf forms close to buds(less petals on my 20L, and looking like 1, 3-5fingers?) it looks like.
Week 9
Leaves. Other
5y ago
1
1
Solved
TheJointOperation
Before it becomes a real problem
Day 39. I realized that I was blasting plants with too much light as of the last few days. Made the switch to bloom nutes. Any ideas what's going on here. I want to fix this before it becomes a real problem.
Week 5
Leaves. Other
4y ago
4
3
Solved
BostonGirlGrows
1/3 plants has leaves that are almost pointing straight up. I have read two opposing things. One being that the plant is actually “happy” soaking in the sun and directing it to the bud sites. The other being some sort of deficiency- either calcium or magnesium? Any thoughts?
Week 10
Leaves. Other
7y ago
6
3