nutrients

Plants talk, read the signs and react accordingly. Most soils have enough nutrients for a full cycle grow. But I use BioTabs for safety and only add nutrients if plants give signs of deficiency.

With a pre-amended organic soil like Back to the Roots you don't need to add anything for the first 3-4 weeks, the soil already has enough for seedlings and early veg, and early feeding is the most common way to burn them. Plain pH'd water (6.0-6.5) is enough. Start thinking about nutrients when the plant has been in the pot about 3-4 weeks, or when growth slows and the lower leaves pale evenly. At that point use a mild organic liquid at 1/4 to 1/2 of the label dose, or top-dress, and watch how the plant reacts for a few days before increasing. Check the label of your exact mix, since the nutrient load varies between products

I haven't used those nutrients specifically, but just my own anecdotal evidence. Take it for what it's worth. If you're doing organic, I wouldn't worry about specific feeding times at all. That's why I love it. It's not for everyone it takes a certain amount of intuition and feel. I think the easiest thing to do is to just give the seedling a nice bed to germinate in and then have your nutrient mix down below. The plant will be able to choose when it's ready to search for more nutrients, and if things are a little bit off, that gives you a little bit of time for the soil to balance out after a few waterings. I use 5 gallon pots to germinate my seeds and grow my autos so it's gonna be a little bit harder to do with smaller pots. But basically you want a solo cup size worth of soil at the top that has basically nothing in it nutrient wise you just want a pH balanced and aerated/loose soil so the roots are not hindered in their development. You obviously have to be mindful of what you're foliage is looking like but often people don't pay enough attention or thought to what the roots are doing. They are the most important thing when the first seedling starting. I will mix up my desired ratio of nutrients. Sometimes I'll split it into three zones. I'll put a solo cup of a nutrient-less mix at the top, followed by a veg mix in the rest of the pot. I have 65 gallon pots I transplanted into for flower from the 5 gallon starter pots, but you can scale this down. Harder to do the whole soil reusing thing, though if you're using smaller pots, though, if you wanna do that, you would have to let it compost down a little bit since there's so much roots compared to soil at that point. I plant mine back to back after growing really big plants and the second round plants seem to do really well after almost better than the first ones of that season. I reuse my flowering soil and re-amend it with compost and worm castings made with the biomass of the last plants as a good amount of input but I do like starting my seedlings with a fresh slate of soil mix that I make up. My plants seem to get hungry after the second week after germination. I've tried to start my plants in 1 gallon pot, which is still really big for a seedling for some, and I noticed a huge decrease in the size of my seedlings. Honestly, what this boils down to is being able to germinate seeds well and confidently and not overdoing it on nutrients or overwatering first few weeks. After that in an organic soil, they basically grow in their own. Once you see plants that have been over fed and plants that are under fed, you'll start to develop an understanding where that fine line of under-fed and over-fed is. The amount of nutrients that your plants taking up is always gonna vary on your environment too, so it's always a moving goal point that you need to be able to chase and understand. When I say it like that, makes it sound really complicated but it's not. Everything takes time to learn. The best advice is less is more starting out. Try to develop deep understandings of certain aspects one thing at a time instead of looking at everything all at once and getting overwhelmed and filled your knowledge that way. Like you're making seeds I would get really good at first since seeds are expensive often and it sucks. Wait a week just to find out a seeds doing not so well. There's a certain amount of failure involved so just gotta experiment and not be afraid to. I know that was much more than you asked for, but I hope you can find something out of that.

Hi 🙋‍♂️ It depends on your soil. With pre-fertilized soil, you usually have about 3 weeks before you should use fertilizer for the first time. With light mix soils, you can start lightly after the 2nd week. The best indicator in the end is your plant… take a look at it a few days after fertilizing and see if it tolerates the feeding. Hope that helps 👍👊🖖🏾

Hello friend, you are doing great, the plant will tell you, great grower and good luck 💚🍀🌱🍀💚

Depends on your Soil.. pot size... plants...and so on. Dont listen to AI copy paste🤣

When growing cannabis, the right time to start fertilizing primarily depends on the type of soil (substrate) used and not rigidly on the calendar. As a general rule: Seedlings and young plants are only watered with water for the first 2 to 3 weeks, as they rely on the nutrients from the seed and the cotyledons. Fertilizing too early burns the sensitive roots. The exact starting point varies depending on the scenario: 1. Decide based on substrate type • For seedling soil / "Light-Mix": These soils are only minimally pre-fertilized. Here, fertilization usually starts from week 3 to 4 after germination (as soon as the plant develops its first true, usually 5-fingered leaves) with a mild dose (about 25% of the manufacturer's recommendation). • For heavily pre-fertilized soil ("All-Mix"): This soil contains enough nutrients for the first 4 to 6 weeks. Fertilization only begins when the reserves in the soil are depleted. • When repotting: If the plant has been freshly repotted into fresh, pre-fertilized soil, wait 7 to 14 days before adding fertilizer again. • Special case coconut (Coco Coir): Since coconut fibers are a completely unfertilized, inert medium, mild fertilization must start from the beginning (as soon as the first true leaf pair is present). 2. Use the plant as a signal (Safest Method) Regardless of the week indications, the cannabis plant itself signals when it needs nutrients: • Start signal (deficiency): When the lowest leaves turn light green to slightly yellow, this is a clear sign that nitrogen in the soil has been consumed and fertilization should start. • Stop signal (enough nutrients): As long as the plant shows a strong, rich medium to dark green, it does not need fertilizer. Very dark leaves or burnt leaf tips indicate over-fertilization. The right type of fertilizer by phase Once fertilization starts, the nutrient ratio (NPK: nitrogen, phosphorus, potassium) is adjusted to the respective life phase: Phase Period (approx.) Fertilizer Focus Main Function Seedling Week 1–3 No fertilizer (only water) Protect root growth Growth (Vegetative) Week 3 to flowering onset Growth fertilizer (nitrogen-focused, high N) Leaf and shoot growth Flowering phase From the first flower sites Flowering fertilizer (phosphorus & potassium-focused, high P-K) Flower and resin formation Flushing phase The last 1–2 weeks before harvest No fertilizer (pure water) Flush out nutrient residues Tip for beginners: Always start with 25% to 50% of the manufacturer's recommended dose on the fertilization schedule for mineral fertilizers to avoid over-fertilization. A nutrient deficiency is much easier to correct afterward than over-fertilization. Wishing you continued success, my friend!😄😄😄