Welcome to UK420

Register now to gain access to all of our features. Once registered and logged in, you will be able to contribute to this site by submitting your own content or replying to existing content. You'll be able to customize your profile, receive reputation points as a reward for submitting content, while also communicating with other members via your own private inbox, plus much more!

This message will be removed once you have signed in.

Search the Community: Showing results for tags 'leaves'.

More search options

  • Search By Tags

    Type tags separated by commas.
  • Search By Author

Content Type


  • Welcome to UK420
    • New Members
  • Cultivation
    • Strain Base
    • Breeders Help Desks
    • Compost and Pots
    • Hydroponics
    • Outdoor Growing
    • Propagation, Cloning and Mother Plants
    • Auto Flowering
    • Growroom Design
    • Problem Solver
    • Harvesting and Processing
    • Grow Diaries
    • Cream Of The Crop
  • Cannabis Culture
    • News, Views and Politics
    • Medicinal Cannabis
    • Smokers Lounge
    • Uk420 Competitions
  • Sponsor Support
    • One Tree Horticulture
    • Intense Nutrients
    • Vapefiend - The Vaporizer Specialists
    • DIY LED UK


  • Community Calendar

Found 30 results

  1. Hi, I grown this plant (gods gift) in soil partly outside then brought it in to veg a bit, now its three weeks into flowering and it's starting to get yellowing of the leaves. I have been only feeding a tiny amount of nutes as I overfed the last plant and got nute lockout. From googling it looks like a potassium deficiency. My tap water is soft and around 6-7ph. I have started feeding now with a veg stage feed.
  2. hi guys and gals, I've been growing this plant for a couple of months and recently its started flowering... bout time... I've noticed a number of leaves are curling in on themselves. Not sure why, can anyone advise. Not able to see any bugs on the plant
  3. Deformed leaves

  4. Hi guys could you help me out identifying whats wrong with my grow ? I have yellow leaves mainly at the top of the plants, some have tip burn others dont. Im thinking its a Nitrogen deficiency but not sure if its nutrient burn/lockout ? I am growing in AutoPots and have been easy on the feeding, the strain is Blue Dream Auto from FastBuds
  5. 5ed194e94e04c-DSC-0442-copy-1238x22011.jpg

    From the album Green Gelato 1

    Green Gelato, one week above ground. Lights Diyled v2 scope 275 at 105cm, PPFD 230 ( Approx). Temp. 25c. RH 65%. In 50% Allmix and 50% seedling compost with added perlite. In 1 litre fabric pots, soil, moist.
  6. Two week old plant grown from seed, started a couple of days ago to have white tips on the leaves that have spread up them. This happened after I lowered the 600W LED from 2 foot to 6 inches above the plant. The seed is in Canna with A&B nutrient supplements. Not sure this is due to the lamp or is a nutrient deficiency or over watering.... or something else. Advice please.
  7. HI ALL, HELP AND ADVICE PLEASE,,,, shes 28 days old, was running 5.8 ph and 550 ppm, she was looking fine,i fimmed her, 2 days later now she is dying by the day!!!!, first fan leaves turn and curl,and plant looks droopy!! 2 days later now leaves are drying out and crumble to touch, roots are discoloured a little, but shes NOT drinking as plant is slowly withering and as stated leaves are dry, been spraying 2 -3 times a day with ph water only, shes on 450 ppm at mo, with 10 ml cal mag and 10 ml hydroguard in 3 gallon please help!!! see photos thanks
  8. Hi all. Was just looking for some input. Two plants here, possibly the same strain just two different phenos. But that said, they do look like they could have maybe had different fathers due to cross pollination. (Bagseed) Day 51 of flower, and both are showing signs of Nitrogen deficiency. Now, I understand that this is normal, in fact I am pleased. However, could anyone maybe provide input on what they would do about the lightest green plant, as this I suspect to be a heavier sativa strain, thus meaning it will take longer to flower, ergo my question...Has it faded too early? I’d say the purple variety with more indica traits will be done in a week or 2 max. But the light green plant seems like it is only halfway done!!! Could I throw some EWC on top for a nitrogen boost? Or is it far enough along to leave be. Thanks for any input. Happy growin
  9. Hi, I've had a look at the photo on this site, showing all the different leaf deficiencies, but I cant seem to find this one - Hoping I can get some advice as to what the problem may be for these: Most of the leaves are ok, but the yellowing is starting to spread. They are on 20/4, with temps around 20 night, and 25-30 day. To control humidity, I am having to switch my extraction off for hours of time occasionally to keep humidity at about 50-60. I wondered whether it is better to get day temps at 23 running at 20-30% humidity or have less extraction, and run at 29 degrees with around 50-60% RH? Appreciate any advice Thanks in advance
  10. Hello everyone, I have been having an "issue" lately. Last few weeks some of my lower leaves (mostly the ones that don't get too much light) start to turn brown/yellow and fall on their own. What can this be? ( N or P problem? ) I might be over-watering: 3L of water with organic nutes in 15L pots. I am getting around 30% runoff instead of 20%. Should i water with less water for starters? Also some red/purple stems are present.
  11. Hi UK420, Does anyone have experience with powdery mildew? And, how best to deal with it. Am 4 weeks from finish but it seems to be taking hold on a couple of strains, Glueberry & Candy Fruit. Have read milk spray is good, anyone used this method? Some photos at the end of this post . Thanks in advance. All the best Arty
  12. Are my plants sick? They are 3-4 weeks old I grow lots of Normal vegetables and this is my first time growing Cannabis if my normal vegetables were looking slightly yellow I’d be concerned.... am i right to be concerned? im currently growing seeds from barneys “CBD blue shark” i have a tent that’s in a shed. (120inx120 by 6ft) The light is a dual spectrum HPS 600w but is currently on 400w. The lights were 14in above plants I’ve literally just raised the lights to 17in. i feed 3 times a week. Got fresh air coming in. Warm air being extracted temps are 20-23c during 18 hours of light. Temps are 17-19c during dark. feed with FormuleX
  13. These are RGSC babies of various ages, all in 1/2L peat pots John Innes seed sowing compost with Perlite. I've sometimes been feeding them very diluted organic tomato fertiliser w/ seaweed. Otherwise just water. They are under cheap shit Chinese eBay LEDs (2 x "50W" + 1 x "100W") in a cupboard with pretty poor ventilation. I open the door when I can and usually have a fan going in there. But I have considered that the ventilation and humidity are probably far from optimal. I'm told these first ones, whitening at the edges, might be cold nights? What do you think? Then these brown bits, I've read both over and under feeding can cause. Finally, this guy just looks unwell. Yellowed leaves with sort of crispy brown detail. This photo looked good on my phone, if I get responses to this I could take some clearer and better-lit photos. If you have any advice I'd really appreciate it! Cheers guys
  14. Hello everybody, been trying to identify what this is, I initially thought overwatering but I don’t think it is, I let the soil get quite dry and there was no improvement. It’s a Hawaiian haze, it’s growing slowly, and it’s the longest flowering plant in the tent (16weeos!) so want to make sure it can recover and worth pursuing.
  15. Hi there, looking for some help on what may be wrong with my plants. Some leaves look very strange, see images below. They pick back up but then others go like this, almost like they are being rated down one side of the leaf but no sign of pests! I am growing in coco, fabric pots, 600w hps, have done 2 weeks cuttings/seedlings am now on second week veg. Transplanted into bigger pots last night not that this means anything as the leaves have been like this for a couple weeks. Feed bucket stays in my Grow room that I built (1.2x1.2x1.9) so not cold feed. Also looking for advice whether I should start stress training at all, if so what method and how do you recommend? thanks in advance
  16. Can someone help with what this may be? some of my leaves look very strange, almost look like they’re being eaten but no signs of pests at all! They have done two weeks seedlings, now into 2nd week veg.
  17. Hi all, I was wondering what everyone does with regard to mutated twisted leaves. I think this was due to overfeeding, so I have dialed everything back, but do I leave the twisted leaves on or cut them? Cheers
  18. Hi, One of the little ones is looking droopy and has a brown/blackish leaf tip and a bit of yellow discoloration. They are on EC 0.4, very mild mix of the plant magic range. Its been pretty hot recently , but I suppose the others would have suffered similarly if tit was due to the heat, but they seem fine. Does anyone know what it may be from these bad (sorry) photos?: can see one of the healthyones in the background: Leaf tip discoloration: Thanks for any advice
  19. Hello everyone, i have two plants two weeks into flower... a gelato 33 which is doing just fine!!! and a green ninja which has started showing some signs of a problem that I need some advice on please. the ninja’s leaves started to curl down at the tips which I noticed this morning...upon checking them tonight the leaves are completely curling down...I thought it could be one of two things, and thought peeps on here might be able to help me pretty please... basically my ph pen died yesterday! It won’t calibrate anymore so I think the readings are completely off! (I’ve ordered a new one and will be here by Sunday). This morning I had to reluctantly guestimate my water ph as my ninja was in desperate need of water...so I’m thinking incorrect water ph may be causing leaves to curl down.... OR... the plants a bushy beast! In a 3 gallon pot and I can see fair amount of roots underneath via the drainage holes...so thought it might possibly be root bound?? Temps are constantly 26-27 degrees Celsius with lights on....21.5-23 degrees Celsius lights off...with a tower fan and clip on fan moving air around so I don’t think it’s heat stress.... Advice massively appreciated!!!!!
  20. green ninja

    From the album n

    2 weeks into flower...curling leaves
  21. Hi people I am a bit worried about my things I'm doing a g13 haze, but when I had them as cuttings they suffered with major thirps and what not , I bought a spray from local grow shop and thought worked well but I've noticed a few plants have deformed leaves on them , there 2nd week into flower now does any one know if this is going to effect my bud don't want them having seeds or the buds to turn out weird any one ever had this problem any advice or anything is appreciated
  22. Just started a new grow and have some brown spots! I over watered in the early stages, which caused some curling and browning to the lower leaves but I'm sure I have that under control now. Plants are now 4 weeks old and these spots are on new leaves...................................Any thoughts? Room temp is between 24 to 26 degrees, ventilation is good so humidity levels should be ok, PH levels are fine but I'm not adding any nutrients yet.
  23. Hi guys, Here is what I woke up to today. Up until this morning my girl has been bright green all over, now she is turning brown and the leaves are going all floppy. If anyone can identify this, I'd be very grateful!
  24. Hey all. HUGH, PUGH,BARNEY,CUTHBERT,DIBBLE and GRUBB are now 10 days old. Has anyone tried placing the reflective film over the top of the pots? Covering the soil and reflecting the light back UP through the canopy? Will that aid Photosynthesis, or just confuse and disorientate them? Tried googling it.... And how to spell disorientate.
  25. My plants so far: 1 x Afghani Skunk Auto, 1 x Anibus Auto, Both in Westlands John Innes, potting soil have been for 50 Days, Temps are at a steady 27C at canopy, and using 300W CFL, (have the light at about 2.5Inches from plants). They've both been on 1.5ml / ltr BioBizz Grow for about 2 weeks, and I started 1ml of BB bloom climbed to 2ml/ltr over the last 2 weeks, I stopped grow on Wednesday last week, and have just went to 24/7 for lighting (helps maintain the temps, and they're Autos..... ) since they're Autos and I only have about 800mm in grow height I went with 4.5Ltr pots, I'm started to get yellowing about 5 / 6 days ago so I gave another feed of Grow, told it could have been Nitrogen def, but the leaves are starting to look brown, (I find it difficult as I have trouble with green, red and brown, my eyes see them, when grouped as more red than brown, but we can talk about my colour vision defect another time ).... I've been told that it could be lack of Oxygen to the roots, and I'm tempted to explore an air pump for my water storage, as I have a 25ltr barrel, that just basically saves me dragging bottle after bottle to the "out-house". just wanted to cast the net far and wide and see what others thought? Cheers in Advance. Dweeeb