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
Help. Yellowing leaves
Kirsty220
started grow question 4y ago
Help one of my plants aren't happy with yellowing tips any help be appreciated many thanks x
Open
Leaves. Color - Yellow
likes
Answer
Chow_13
answered grow question 4y ago
Your either lacking magnesium or have excess phosphorus/potassium. So either cut back on the bloom nutrients or add a cal-mag supplement to her diet.
likes
Complain
auto_floo
answered grow question 4y ago
Its a PH fluctuation/issue ,which prevents from absorbing certain nutes in this case magnesium ,give her more calmag soon and check ph. Or give her epsom like
@M0use
wrote 👍🏼
likes
Complain
Similar Grow Questions
Solved
susina
bottom leaves yellow
Helloo So today I've noticed that the bottom leaves are yellow. I don't really think it is a problem since I think the reason is that they don't get enough light because are covered by the bigger leaves on top. But it's better to ask since I'm a newbie. What do you think?
Week 4
Leaves. Color - Yellow
6y ago
3
Solved
GreenBeanGrowMachine
very Bright green leaves with a yellow tint.
Should i Worry about her turning very light green / yellow or is this Just becouse she is finishing her life cycle? OR does this look like Bud rot ??
Week 10
Leaves. Color - Yellow
6y ago
4
4
Solved
Cookie_thefarmer
Noticing my very bottom leaves are turning yellow. Should I be concerned with this? Any idea of the cause? I haven’t used any nutrients yet.
Week 3
Leaves. Color - Yellow
7y ago
10
8
Solved
Weedxcz
I have the light at a height of about 40 cm. The photo is taken immediately after watering. The water drains as it should. I use biobiz lite mix. I think it will be poor water quality or spoiled fertilizer. How do you recognize spoiled fertilizer?
Week 1
Leaves. Color - Yellow
3y ago
3
Solved
DeathInc
Normal Canopy Yellowing?
Normal Yellowing at this point/flowering age? Pics are in order from left to right, plants 1 through 3. Thanks guys!
Week 8
Leaves. Color - Yellow
5y ago
2
2
Solved
Hermes88
the plants're killing the lower leaves
They're growing BUT...the plants're killing the lower leaves.I don't understand why,this has been happening since parasites attacked them.Then when the parasites were gone and slowed for a while the leaves were dying.I put neem oil back on it (to prevent pests)and it started gain
Leaves. Color - Yellow
3y ago
6
Solved
EmeraldLakeCannabis
Progressive yellowing on older fan leaves ~F14-F35
Hi, past two weeks or so I've been noticing progressive chlorosis and eventually some necrosis starting from the edges of the leaves and working inwards. Photos of this can be found in Week 18 Flower denoted by "For grow question #x 12/1" Humidity low, could be related? thx
Week 18
Leaves. Edges burnt
Leaves. Color - Yellow
Leaves. Color - Mottling
6y ago
2
Solved
ED1126
Time to harvest or deficiency?
Is this an deficiency or is it just harvest time? She's 10wk old auto in and gal pot been giving her straight water for the last 3wks.
Leaves. Curl down
Leaves. Color - Yellow
4y ago
7
6
Solved
GanjaGartenZwerg
Blattspitzen Braun langsameres Wachstum
Pflanzen wachsen langsam Blätter haben braune Spitzen sie stehen in cocos perlite mix gedüngt wird mit Canna nach Schema ph ist 6.0 mit Osmose Wasser der strain ist Purple Marok
Leaves. Veins - stay green
Leaves. Color - Yellow
2y ago
2
3
Solved
edsmokesalot
Yellow leafs slow growth
Hi plants are 10 days old in canna coco natural witch I dont think has any nutriants in it the leafs are bright yellow and seem very slow at growing my light is around 40-50cm from the plants I water 1.5liters every 2-3days when top of soil is dry 1st pic mine 2nd ex of colour
Week 1
Leaves. Color - Yellow
6y ago
4
4
Solved
Sour_D
Many large fan leaves yellowing, tips of some leaves clawing, brown spots on 1 leaf
Hey guys, looks the the SFV OG is having an issue. Neighbor informed me today that she has some fan leaves yellowing and he said it just started today. Also brown spots. Temp is 75 and humidity is 40. Nute burn? Any ideas?
Week 8
Leaves. Color - Yellow
5y ago
11
3
Solved
ETphonehome
Yellowing
We dropped the lights back to 50%and to 12hr of light and 12off it seems to be a bit happier
Week 13
Leaves. Color - Yellow
5y ago
1
2
Solved
enthusiast_grower
yellow/copper appearance in some leaves after first run off watering
hi! after the first run off watering the girls seemed alright, sturdy and firm but some of the leaves (one leaf, 3 plants currently) experienced copper/yellow/orange tints . this is only on old leaves so looks like mobile nutrients. could this be cal-mag issues?
Week 3
Leaves. Color - Yellow
Leaves. Color - Red or pink
4y ago
3
3
Solved
Greenfingeress
Leaves yellowing curling edges.... Why
Hi Can anyone explain what causes the yellow-ness around the edges of my leaves, and what I can do to stop this? Hope it's not too obvious Thanks
Leaves. Color - Yellow
6y ago
1
6
Solved
jokgga
Is it normal to see so many leaves dying incthe middle of flowering period?
I am seeing so many of my leaves curling / dying.... I know these leaves will all get yellow towards the end of flowering but should my plants look like this at Week 9?
Week 9
Leaves. Curl up
Leaves. Dropping off
Leaves. Color - Yellow
6y ago
5
6
Solved
mapfrog
Week 7 Burnt Leaves?
You can see in week 7 that the right plant has some underdeveloped/burnt leaves and yellowing towards the top. Does this look more like light burn or a nutrient problem? I fed with Root's Bloom at the beginning of flower.
Week 7
Leaves. Tips - Burnt
Leaves. Color - Yellow
6y ago
4
4
Solved
JoshuaTreez
Nitrogen Toxicity? The Claw? Potassium Deficiency?
Is this the claw? Is it Nitrogen toxicity or Potassium deficiency? It had been awhile since the last feeding Thanks guys
Week 6
Leaves. Color - Yellow
5y ago
1
1
Solved
Ruuddata
Growth Q
Identify the deficiency (Nitrogen Or ?) . And I think the whitening of the tips has to do with PH
Week 10
Leaves. Color - Yellow
6y ago
1
2
Solved
Maddiq
Overwatered cubes in hydro? Too close to the sun? or effect of having add
Hi All, I have issues with my first hydro grow - i effed up. I think i was too slow in the transfer over in the tank. Light is 200 PPFD, EC at 0.6, and barely added any nutes. Did i manage to overwater some of these plants by having them too close to the net pot?
Week 1
Leaves. Curl down
Leaves. Color - Yellow
Setup. Substrates
2y ago
3
Solved
Gorrilla420
What’s this yellowing?
Is this a ph problem? Been using same water sauce since start of grow and only this one plant out of the 4 is showing this. Haven’t ph’d water at all but have just gave plain water last watering after noticing this
Leaves. Color - Yellow
4y ago
2
2