I have some excellent meters for monitoring NPK levels in my soil but I don’t have a chart telling me which are the correct levels for the various stages of growth is there one available somewhere?
My seedling has a reading of 8-12-35 with a ph of 6.8 (soil)
I have PH meters for both soil and my water. my water meter is capable of several different readings besides pH but I’m not sure how to use them? I see some talk about PPM and I see I have a percentage content on my meter but I’m just not familiar with anything other than the pH.
I had intended on growing in the ground transplanting fairly soon but I’m thinking now of leaving it in a pot and was curious to what the general consensus was for a pot size. when I grew hydroponically I used 5 gallon buckets with a rock medium and the root ball fit inside that 5 gallon bucket just fine. growing in soil I’m thinking a 3 gallon bucket might be large enough but would like some feedback.thanks for any info you have
If you plan to stay in a fabric pot throughout all veg then flower, i recommend a minimum of 7 gallon
Yeah depends one big plant in a 4x4 yeah 7gal/ 4 plants in a 4x4 3 or 5gal problem with 3gal is you might never get a day off once theyre big
Yrs I see, outside. Same story, more/less work
Grow space and intended plant count would determine the pot size Grow Bro. Post some pics of the meters you have questions about 
I think jury is still out on perfect npk ratio for cannabis. I think final npk ratio on fertilizer i use is 3-1-4 and it will typically produce nice plants when used from start to finish. But I’ve seen really nice grows with all kinds of different npk ratios.
You are correct that a 3 gallon pot will hold the plant. This is about as big as I’ll use for indoor growing. It’s true though that you’ll water it more often so keep that in mind. For outdoor grow I would go bigger as you will need to water a lot and you’ll want a heavy pot so that a little wind won’t blow your plant over once it starts putting on some mass.
Thx for all the feedback. My plans for this season have been humbled quite a bit. I has a secluded garden space capable of handling about twenty plants.
Unfortunately despite successful germination only one managed to break ground. With just one plant I’ll leave ot here in the yard and see how it goes? I’m surprised there isn’t a corresponding change in nutrients outdoors like there is in doors. My indoor liquid fertilizers change with the stages. I don’t know how else you could tell other than monitoring the npk levels?
Thanks again for the feedback.
Are you growing autos or photos
? feminize. I don’t like autos and Im not sure what photos are?
I germinated in Rockwool. this is the first time I’ve ever had a significant failure rate much less 99% failure? I’m not sure what I did wrong if anything. I’ve moved on to a different strain from a different source through a friend but I’m about a month and a half too late for my plans this season. I’ve liked growing outdoors to indoors but with climate change and living on the Gulf Coast it’s so hot here in July and August I’m surprised anything grows and that’s only going to get worse. I suppose I’ll always have one or two plants living on good old sunshine but to ensure future supply I may have to reinvest and some hydroponic equipment and go back indoors.
Hydroponic is the way to go in my world. I change my water every 7-10 days and I let them do their thing, grow big and healthy. My system waters every 4 hours for 30 minutes. I’ll never go back to soil. I just keep my water ph around 6.0-6.2
I’ve had luck in soil but requires more attention to keep everything on track. Good luck and happy growing
There’s autos that can be harvested 10-14 weeks from seedlings, and photos that can take 10 to 16 weeks. Autos flower when they are ready no matter light scheduled. Photos you change light schedule to usually 12/12 for them to flower mimicking fall is approaching
Feminized are photos short for photosynthesis. Means they wont flower until theres the right amount of light and darkness. Its too early to put Cannabis plants outside if you live in the northern hemisphere. Its not because of temperature its because of too many hours of darkness.
Yes…that’s a given. I start in late Feb and supplement with artificial light until big enough for about a month. I live on the gulf coast with the start of growing season traditionally Easter weekend. up until then it’s not a question of light as much as it is ground temperature. I have an enclosed front porch that I keep heated so the plants have an artificial ground temperature of around 70°. I’ve never had such a huge failure with seedlings though it’s kind of distressing. I’ll have another late start with a new batch of seeds, kind of a bummer because it’s so hot here. it’s seldom freezes before Thanksgiving well passed the time when the season start to shorten. it’s hard to get plants through August here outdoors.
I may try starting some around the 4th and see how that goes.
to be honest though I’m completely Fed up with trying to do it nature’s Way. I spent a few days last week building a grow room in the Attic of about 100 ft. it’s about 7,000° up there in the summer so it will require extra expense for ventilation but I think in the long run it’ll be worth it. I think it’s a little more work going indoors but that makes up for all the other difficulties that come with outdoors. when you consider the insect issue alone it’s worth it. it is literally impossible to go completely organic in my area because the bugs are so bad
There are plenty of organic bug remedies depending on the type of bugs your dealing with. I grow outside in the ground I fight with bugs and bud rot every year. Purecrop1 is organic. I used it all last year and had one of my best grows ever. The only thing it didn’t work on was grasshoppers. Nothing kills grasshoppers except your fingers. Monterey BT is organic and Captain jacks dead bug is organic. I start all my seeds around 4/20 then transplant them outside in June. It doesn’t matter to me if I start them in April or earlier they still dont go outside until 1st week of June. Ive put 12in tall plants out in June that ended up being 10ft tall and 6ft in diameter by September and harvested late October or early November. You dont need a chart for NPK every plant is different and requires different amounts of nutrients. Some are more hungry and some are bigger than others. They need more nitrogen in the veg stage and more phosphorus and potassium in flower. You need to watch your plants and learn what they need by looking at them. No meter is gonna tell you, you have the right amount of nitrogen or phosphorus or potassium or whatever, for that particular plant in that particularsituation. A tds/ppm meter will tell you the overall total of nutrients but thats it. That and a ph meter is all thats needed. Meters that you poke in the ground are pretty much useless and not very accurate at that.