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Yellow leaves
- Thread starter Tman72
- Start date
berrypilot
New member
🌱 Great grow so far! Very nice looking plant! Can you tell us a little about your setup? Are you in soil or coco? Have you started using nutrients and have you been checking the pH of the water going in and out? The pH being too high or too low is the most common reason to see deficiencies. Also, as long as it's not too hot you can keep those CFLs much closer, within just a few inches from the tops of your plants. That has nothing to do with your problem but it would get more light (food) to your plant, which increases yields. CFLs can be kept very close, just put your hand where the plants are and if it's comfortable for you after 30 seconds it means it's far enough away from your plants. Seems like you are doing a great job so far! 🌱
Tman72
New member
Thanks Berry. This is my second and largest mother plant I've done. I'm using Organic soil. Basic veggitable nutrients every 7-14 days or as needed. pH is around 5. Watering her a cup. twice a day. I'm leaning towards low or lack of certin nutrients. Im also thinking she's to big for her house. Everything was great till bout 4-5 months in there. Started showing darken stems, she started getting curling tips and someone here told me I need a bigger pot, witch I did do. Made a big difference. Big response... Then 4 weeks later curling never really went away and the yellowing started. I just today starting flowering her. Figured I better get what I can from her before she gets to big. I raised the cfl's for the pic. But thanks for the tip. Gonna make a led grow light in the very near future. Humity is around 65% and temp is at a steady 75°. So what ya think?
berrypilot
New member
🌱 Is it possible to transplant into a bigger container with fresh soil? A plant that is root bound will commonly get deficiencies even if you're giving the nutrients directly in the water! If it been in there for almost half a year I bet the roots are all wrapped around the outside of the container.
Also, with soil you may want a PH that's a little higher. Many soil growers on here recommend a pH of 6-6.5 in soil.
The humidity is also really high for the flowering stage, because too much moisture in the air causes buds to grow mold. Do you have an extraction fan pulling out old hot air and replacing with cool, fresh air?
Cannabis does better if it gets wet and dry periods. Instead of giving just a cup of water twice a day, you should be giving enough water to get runoff out the bottom, and then wait until the top inch dries. Optimally you should be watering every 2-3 days. If you need to water more often than that, it means you either need to give more water at a time or transplant to a bigger container. 🌱
Also, with soil you may want a PH that's a little higher. Many soil growers on here recommend a pH of 6-6.5 in soil.
The humidity is also really high for the flowering stage, because too much moisture in the air causes buds to grow mold. Do you have an extraction fan pulling out old hot air and replacing with cool, fresh air?
Cannabis does better if it gets wet and dry periods. Instead of giving just a cup of water twice a day, you should be giving enough water to get runoff out the bottom, and then wait until the top inch dries. Optimally you should be watering every 2-3 days. If you need to water more often than that, it means you either need to give more water at a time or transplant to a bigger container. 🌱
Tman72
New member
Ok that all makes great sense. My mistake on the humity. When she was vegging the humity was that high. I'll be lowering it. Also I do have a exsust fan for both in and out. Baby needs fresh air. Lol. So I'll definitely up my pH. And definitely fallow your watering recommendations. Cause I'm not getting any run off at all.
Another friend told me I should forget the box and just set her on the floor and line the walls with foil and just hang the lights over her. But it's alot easier to control the environment in the box. I'm limited on space. Next time I won't let it go so big. But your suggestions sounds great. I'll give them a go. Thank you.
Another friend told me I should forget the box and just set her on the floor and line the walls with foil and just hang the lights over her. But it's alot easier to control the environment in the box. I'm limited on space. Next time I won't let it go so big. But your suggestions sounds great. I'll give them a go. Thank you.
alltatup
New member
You might also give her a good flush to rest the roots from nutes. The spotting on the leaf looks like the nutrient lockout I recently experienced in DWC. I flused the plants for 48 hours and lowered the nutrients to 25%; the plants perked up after that, so last res. change, I raised the nutes to 35%.
I'd also suggest holding off a few days or so on switching to flower if you can, so you don't switch her right when she's in the middle of stressing.
I'd also suggest holding off a few days or so on switching to flower if you can, so you don't switch her right when she's in the middle of stressing.