Do You Actually Need Fertilizer? (Most Get This Wrong)

Hinzugefügt: 2026-05-05

[00:00:00]All right, let's settle this once and for all. Can you actually grow a garden without fertilizer? Because if you spend any amount of time gardening, you're going to hear two completely different things. On the one side, you have people saying you have to fertilize or your plants are going to struggle and they're never going to produce the way you want.

[00:00:21]And then on the other side, you've got people saying, "Don't worry about fertilizer. Just build good soil and everything will take care of itself."

[00:00:29]So, which one is actually true? Because those are two completely different approaches and they can't both be right in every situation. So, the answer is it depends. It depends very specifically on where you're growing because a container, a raised bed, and an ingground bed are not just slightly different. They are completely different systems. And if you don't take that into account, you can end up either wasting money on fertilizer you don't actually need or skipping it in situations where your plants literally don't have a chance without it. So, what I want to do in this video is break this down as simply as possible. We're going to go through containers, raised beds, and inground gardens. And I'm going to show you exactly where fertilizer is required, where it's optional, and where people tend to get this wrong.

[00:01:26]Let's start with containers because this is the easiest one to understand. If you're growing in containers, you cannot grow successfully without fertilizer.

[00:01:36]This is a hard no. And I want to break this down for a second because this is where a lot of beginners get tripped up.

[00:01:44]A container is a completely closed system. There's no connection to the ground. There's no deep soil below pulling in nutrients and there's no natural cycling happening over time.

[00:01:59]Everything that plant has access to is whatever's inside that pot. That's it.

[00:02:04]Now, when you first plant something, it looks great. Fresh potting mix, nice and fluffy. Uh the potting mix probably has some nutrients in it. And for a little while everything seems fine, but the plant is constantly pulling nutrients out of that soil. And every time you water, you're flushing nutrients out of that container. So now you got two things happening at once. The plant is using nutrients and you're washing nutrients away and nothing is replacing them. So what ends up happening is things look good at first because of the residual nutrients that might be in the potting soil and then slowly almost without noticing growth starts to stall.

[00:02:51]Leaves might get yellow. Plants don't size up the way you expected and production drops off if it ever started at all. And you might start thinking, what am I doing wrong? But it's not a complicated issue. It's just that the system ran out of fuel. So, when people ask, "Can I grow in containers without fertilizer?" What they're really asking is, "Can my plant survive long-term in a system where nutrients are constantly being removed and never replaced?" And it's an easy answer once you figure that out, right? The answer is no. At that point, fertilizer isn't optional. It's the entire system. you are replacing what doesn't exist naturally. And actually, this is a good spot to mention this real quick. We're going to be doing a giveaway this video with Neptune's Harvest fertilizer. I've been using them for eight or more years now, and I know a lot of you love them, too. I'll explain how to enter at the end of the video, but if you're growing in containers, this is exactly where something like this makes a huge difference.

[00:03:58]Now, let's move on to raised beds because this is where things get a lot more confusing and this is also where I see the most mistakes because raised beds look like in ground gardening, but they don't always behave like it. And whether or not you can get away without fertilizer comes down to one key thing.

[00:04:17]Is that bed actually connected to real good healthy soil underneath? because if it's not, then it's really not acting like ingground soil. It's acting like a giant container.

[00:04:31]So, let's say you've got a raised bed that's 17 in deep filled with imported soil sitting on top of compacted ground or even worse, a barrier of some sort.

[00:04:43]That system is mostly isolated. There's not a lot happening below it if anything. There's no deep nutrient exchange. There's limited or no biological action with the native soil.

[00:04:56]So even though it looks like a garden bed, functionally it behaves a lot more like a container. And in that situation, no fertilizer is eventually going to catch up with you. Maybe not right away because the size of the bed is not the same as a small container, but over time you're going to start seeing slower growth and reduced production because again, you're working with a limited nutrient pool. Now, here's where it gets interesting because there is a situation where you can start to get away without fertilizer in raised beds. If your bed is shallow around 6 to 12 inches, it's open to good, healthy native soil below, and you make once or twice a year an addition of 3 in of good, rich compost, preferably homemade, just to the tops of the beds. Then something changes.

[00:05:51]Nutrients are being added to the soil via the compost. Roots can move deeper and go into good native soil. Moisture can move and be stored. Biology can start to be active. Nutrients can cycle from below. And at that point, your raised bed stops acting like a container and starts acting more like in ground soil with a boost on top. Now, with that, you can start to rely less on fertilizer over time. But that doesn't mean you never need it, especially in the beginning. because most raised beds when they're first built, they don't have a developed soil system yet.

[00:06:31]There's not enough biology and uh nutrient cycling. So, my advice would be this. You'll need regular fertilizer early and then after a couple years, you can rely on it a little less as the soil improves. In raised beds, as much as you try, it would be difficult to get by forever and always without adding nutrients of some kind. If you have good, rich, homemade compost to apply once or twice a year, then that would definitely help things. But for the most part, you might get away with less fertilizer, but possibly never no fertilizer.

[00:07:10]Now, let's talk about in ground gardening because this is where things can be managed in a way that makes it much more possible to get by without the addition of fertilizer, but only if your soil is doing the work. And this is where we need to define what that actually means. Because it's not just dirt. Good soil is alive. It's got organic matter, microbial life, fungal networks, structure that holds water and nutrients, and is also well- draining.

[00:07:40]And when all of that is working together, your soil becomes a system that is constantly cycling nutrients, breaking things down, making nutrients available to plants naturally. And at that point, you're not feeding the plant anymore. The soil is feeding the plant.

[00:07:59]But here's the reality. Most ingground soil is not there yet. A lot of it has been depleted, overworked, low in organic matter, low in biological activity. And in that situation, trying to grow without fertilizer is going to be a struggle because the system isn't doing its job yet. So again, fertilizer becomes a tool, not something you have to rely on forever, but something you use while you build the soil. And over time, as that soil improves, you can start backing off. And with the addition of good compost yearly or by-early, if you're in a climate where you can grow all year, you may get to a point where you no longer need to rely on fertilizer. It's definitely a great goal to work towards. Now, at this point, the real question becomes, if you're going to use fertilizer, what kind actually makes sense? Because this is where a lot of people stop thinking about the system and just start thinking about numbers on a label. Nitrogen, phosphorus, potassium.

[00:09:04]Bigger numbers must be better, right?

[00:09:08]But that's not really how this works because not all fertilizers behave the same way in your soil. Synthetic fertilizers feed the plant. Organic fertilizers feed the soil which then feeds the plant. It's a big picture difference. But even with organic fertilizers, there are some important differences that most people don't realize. A lot of people are familiar with fish emulsion. I used to use it and all the neighbors knew when I was using it because you could smell it for a block. Fish emulsion is typically made using heat. It's basically a big vat of fish guts and parts that is boiled and cooked down into a thick pasty liquid which makes some of the nutrients available quickly. Nitrogen, phosphorus, and potass, potassium to name the biggest three. But the cooking process also strips away a lot of what made that material valuable in the first place.

[00:10:07]all of the beneficial enzymes and micronutrients that make plants thrive and produce higher nutrient harvest for us and help build the soil itself. But on the other hand, hydrayzeed fish fertilizer is different. And our giveaway today, Neptune's Harvest, is a good example of this. Instead of using heat, it's made using a cold process with enzymes. So rather than cooking everything down, it's being broken apart naturally into amino acids and simpler protein structures. And that definitely matters, especially if you're trying to build your soil to rely less on fertilizer later because now you're not just adding nitrogen. You're adding a form of nitrogen that comes from actual protein. So when it goes into the soil, it doesn't just hit the plant all at once. It breaks down gradually and more importantly it feeds the biology in the soil. And this is where things really start to separate because over time if you rely only on concentrated synthetic fertilizers you can actually reduce the biological life in your soil. At that point the soil becomes more dependent on inputs from you and less capable of supporting plants on its own. Synthetic fertilizers are designed to drive fast growth. You apply them, the plant responds quickly, and you see a lot of green growth. Things look bigger, they grow faster, and at first that feels like a good thing. But here's the issue.

[00:11:41]That kind of growth can outpace what the plant can actually support. The structure isn't always there yet. the root system hasn't caught up and the plant is putting on a lot of soft fast growth. That can be more vulnerable. And that's when you start to see things like um plants that flop over, pest pressure, disease issues, because you've essentially pushed growth faster than the system underneath can handle. Where something like a hydrayed fish fertilizer works very differently because it's not forcing growth, it's supporting it. It's slower, it's more balanced, and it's tied to what's actually happening in the soil. So, instead of the plant racing ahead, the roots, the top growth, and the soil biology tend to stay more in sync. And over time, that usually leads to plants that are more stable, more resilient, and better able to handle stress.

[00:12:39]Just because a plant is growing fast doesn't mean it's growing well. So, let's bring this all together, and then we'll get to the giveaway. Can you grow a garden without fertilizer? In containers, no. In raised beds, only under very specific conditions. And in the ground, yes, but only if your soil is actually doing the work. Otherwise, something has to replace that. And that's where fertilizer comes in. And that's really the shift I want you to make. Stop thinking about fertilizer as something that you either use or you don't use. And start thinking about it as a tool. a tool that fills in the gaps when your soil can't because fertilizer itself doesn't fix bad soil. It replaces what the soil isn't doing. All right, the giveaway. Neptune's Harvest is giving away a gallon of tomato and veg formula, which is my personal favorite for a general season feed, and a 4 lb bag of crab and lobster shell, which I use on everything at planting time. If you want to enter the giveaway, all you have to do is drop a comment below and let me know how you're growing this year. Containers, raised beds, or in ground. And I guess technically you can comment as many times as you want and each comment will be entered into the random drawing. That's it. Now, a quick warning. Every time there's a giveaway on YouTube, the scammers know it and they respond to your comment in the comment section. We try to delete them, but sometimes it's impossible. So, if anyone with my logo even contacts you to tell you you've won and all you have to do is pay shipping, it's a scam. First of all, if you win, we don't charge shipping. So, what we started doing to combat this is to run the giveaway for 7 days. So, it ends on Friday, April 24th.

[00:14:29]You can then come back to this video on Saturday the 25th. Check the video description and we will have the winner listed there and a way for you to contact us. So, comment below and enter.

[00:14:42]And also watch this video right here about why I don't use Miracle Grow and give you some free DIY fertilizers you can make at home. I'll see you guys next time.