The Grow Awards 2026 🏆 
Yellow top leaves
Similar Grow Questions
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
StonedHermitgrow
Trying to see if she is healthy or notSo my northern lights is 7 weeks old and im seeing a lot more brighter color in the leaves around her colas up top Lately so im just trying to see if shes ok or not ik that the red in the stems is Genetics but the leaves are what have me Wondering last pic i power is 25%Leaves. Color - Yellow
2y ago
5
5
Solved
Bucket_Buds
Bottom leaves yellowing in floweringMy lower leaves started turning yellow and drying out, am I having nutrient deficiencies? My guess would be nitrogen or potassium but not sure, had some nutrient burning earlier so cut down on the feeding a bit.Week 6
Leaves. Color - Yellow
4y ago
5
9
Solved
Terp1
Halb gelb, halb grünMeine Pflanze zeigt aktuell leichten Kalium Mangel. Aber irgendwie nur auf eine Hälfte der Pflanze. Die andere Hälfte sieht gut gefüttert aus. Kann mir das jemand erklären? Also warum betrifft der Mangel nicht die komplette Pflanze?Leaves. Color - Yellow
Feeding. Deficiences
3y ago
1
3
Solved
dagwood
Week 2, leaves yellow-ish mottling, pH too high?That's my guess for now. I was going to use Blumat Tropf hooked up to tap but house water seems too basic. Only way I can think of remedying is to hook Blumat Tropf up to reservoir and make sure the water in it is the appropriate pH. Will that be stable?6y ago
3
Solved
TCH0808
Fine-Tuning Nitrogen Understanding (Deficiency or Toxicity) -- Suspected deficiency, so how do I adjust Fox Farm nutes? Increase ALL 3 nutes to 3/4 dose?Initial inter-vein yellowing, followed by whole leaf yellowing. Minor leaf stem reddening. Older growth. Normal for flower stage (I believe), but too early for normal and rapid discoloration (week 6). This makes me believe it's a nitrogen deficiency, amplified by SLIGHT overwaterLeaves. Color - Yellow
5y ago
1
2
Solved
Grazynka
Flush or what to do ?Advice please. I watered yesterday but the stains on the leaves are getting worse. Now I don't know if it is deficiency of cal n mag due to nutritient lock out which might be due to ph being off as I have 5 reders and all of them show a different thing. 🤦♀️...or it is it rust?3y ago
1
1
Solved
Jaygrow1020_autoking
Can anyone tell me what I'm doing wrong? This is my blueberry auto. I'm using advance nutrients. Just fed her this morning with bloom, micro, grow, big bud, bud candy, voodoo juice, and sensizymLeaves. Tips - Burnt
Leaves. Curl down
Leaves. Color - Yellow
5y ago
3
2
Solved
MyBudz21
Yellow spots on leaves.Can some please help with what’s the problem with the leaves on my plants? They have lots of yellow spotsLeaves. Color - Yellow
5y ago
3
3
Solved
yungtimmy98
Poorly seedlingHi is the latest pic uploaded showing overwatering? or is it something else?Leaves. Dropping off
Leaves. Color - Yellow
5y ago
1
2
Solved
Pagus
Yellowing leaves after first Mainline top. Light stress?Just checking in here, I am pretty sure this is light stress. it was at 18" (specs say 18-24" during veg) and she was likely pretty stressed after having her top cut off!!!
I have raised light to 23". Am I on the right track here?Leaves. Color - Yellow
Setup. Lighting
Techniques. Main-lining
4y ago
1
3
Solved
LetsGrooow
8 day old seedling yellowing. Help please.What's wrong with my 8 day old seedling? starting to see yellow on first true leaves. Light is at 50% power (low as it goes) which is 150w 24 inch above canopy. Watering a cup of pH 6.0-6.5 every two days. Happy frog soil with 20% perlite have not given any nutes. 72f 62% humidtyLeaves. Color - Yellow
4y ago
7
6
