Hello,
I'm a first time grower about 8 weeks into growth of a Wedding Cake autoflower strain.
I started giving the plant flowering fertilizer with each watering, for the last 2 weeks or so, and started noticing browning/burnt tips on most of the upper 2/3 of the plant, followed by browning/rusty leaf edges.
Overall color is dark green. Not many, if at all yellowing leaves, although I have pruned a few at the bottom since starting grow
Medium is Coco and superb soil mixture, with perlite.
Inside grow tent with small 6" stationary fan running, avg temp of 75 degrees, and avg RH of 56-58
PH of water runoff when tested was 6.8. PH of medium around 6.9- 7 0
Using 600 watt 12 spectrum Viparspectra LED grow light, about 24" from canopy
Running an 18/6 schedule.
Thanks for any advise!
@paulysavy21 Im not familiar with your soil, but when i looked it up it seems to be a water only super soil. Im not sure what flower nutrients you are giving and at what strength, I am a soil grower I usually only feed 1/2 strength nutes every other watering at most with store bought soil. in super soil I use a compost tea once a week and water the rest of the time..
Let us know what you are using and how much, and if your soil is a super soil or not.
Sativa to change the things I can, Indica to accept the things I can’t.
Can you get a picture up. From the description there are a couple things that might need correcting and that picture is worth many thousand words
Overfeeding and wind burn both pop into my thoughts
Random acts of kindness make the world a better place
The grow kit is from a pot for pot.com, which describes the medium
https://apotforpot.com/collections/complete-kits/products/small-complete-pot-grow-kit-two-gallon
The low power fan is not blowing directly on the plant...more like off to the side, circulating the air around it
@paulysavy21 Did the nutrients come with the kit? I didnt see them listed, It claims to be a water only soil.
Sativa to change the things I can, Indica to accept the things I can’t.
No, nutes were extra purchase. https://ilgm.com/products/marijuana-fertilizer-set
Looks and sounds like nutrient burn to me.. The plants still looks ok overall though.. If it’s nutrient burn you can only really use pH water only, if you’re medium is well aerated it’s possible to ‘flush’ out some nutrient, if not you’ll only waterlog your medium... but personally I’d just be giving pH’ed water from here on in and monitor..
Autoflowers typically don’t need a lot of food from my understanding, especially if you have a super soil to start with.
good luck 🤞 hope it helps a little
Thats what i thought. I would stop using them They are good for regular soil mixes.
the super soil you bought already has the nutrients needed for the life of an auto flowering plant. and only needs Ph'd water.
They dont look bad overall try just using Ph'd water and see what happens they should lighten up.
@TempleGrower can probably give you a better answer organic super soils are his preferred way to grow.
Sativa to change the things I can, Indica to accept the things I can’t.
When you say 'PH'd water, do you mean, 7.0, or pure water? I have been using distilled water, and it has a PH of a little over 7.0, I also have regular well water with a PH under 7.0, slightly more acidic.
Which one do you think would serve the plant better at this point?
I have already started to flush it yesterday with the distilled water.
Thanks,
Pauly
I use water that is Ph'd down to 6.5 Ph 6.3 - 6.8 is a good range
I would use the well water and Ph it if needed
Sativa to change the things I can, Indica to accept the things I can’t.
Yeah, I think twisted and chillbert got it. Too much food! Looking at the ingredient list on the soil mix, it seems to be a pretty standard supersoil mix so, you shouldn't have to add the additional nutes. Keep em for another (coco) grow.
And when we say 'pH'd' water, what we mean is pH adjusted water. In a supersoil grow, the ideal pH is about 6.5, give or take a few points. But, depending on the source of your water, there is a decent chance that you will need to adjust it to bring it to the 6.5 we want. My water is quite alakline (basic), for example, and comes out of my tap at a pH of 8.1 so I need to add some pH DOWN to it. Some water is acidic too though, and so you would need some pH UP to adjust that. It just depends on your specific situation.
Our forum is free to join. We are an international cannabis forum that helps people all over the world grow their own personal supply of cannabis. Through our site you will find cannabis breeding forums, cannabis deficiency forums, indoor cannabis growing forums, and much more.
We are a home growers cannabis forum, and we only allow people who grow cannabis for personal use to be members. Our mission is to help you grow your own cannabis. We do not buy/sell/trade cannabis, or equipment for growing cannabis. Our site is strictly a cannabis smokers forum, cannabis growers forum and forum for medical cannabis users.
Use our guides on how to grow cannabis, cannabis grow diaries, and growers forum to find all the info you need to learn how to grow your own cannabis.
Any member who is suspected of growing cannabis for commercial gains will be banned immediately.
Please read our forum rules, and enjoy the site.
Find us on all social networks! Just search for Percys Grow Room