If you’re looking for an easy, cost-effective, and natural way to boost your garden’s health, making your own liquid fertilizer is a great option. This method is simple, mess-free, and provides your plants with all the nutrients they need without the need for expensive store-bought fertilizers.
The best part? The process doesn’t require any complicated straining or dealing with unpleasant smells, as the liquid naturally filters itself. Here’s a step-by-step guide on how to make a potent, nutrient-rich liquid fertilizer at home.
What You’ll Need:
To start making your own liquid fertilizer, you’ll need just a few items. Here’s what you’ll need to gather:
- Two 5-gallon buckets (old ones work perfectly)
- A drill to make holes in one of the buckets
- Weeds from your garden
- Non-chlorinated water (rainwater is ideal)
- Garden soil
These basic materials will be all you need to create a powerful fertilizer for your plants.
Step 1: Prepare the Buckets

Start by preparing the two 5-gallon buckets. One bucket will remain intact, while the other needs some modifications. Using a drill, make several holes in the bottom of one bucket. These holes will allow the liquid to filter through the weeds and into the second bucket.
The second bucket should remain hole-free, as it will catch the liquid once it passes through the top bucket. The gap between the two buckets—about 2 to 3 inches—is important because it allows the liquid to collect at the bottom.
Step 2: Collect Weeds

Next, head out to your garden to collect weeds. Weeds, especially those in the seeding stage, can quickly take over your garden. Rather than letting them sit in your compost pile or risk them spreading, use them for this process. Weeds are a great source of nutrients and organic material, and they break down easily when used in the fertilizer-making process.
Once you’ve collected your weeds, add them to the bucket with holes. Fill the bucket as much as possible with weeds. The more weeds you add, the richer the fertilizer will be.
Step 3: Set Up the Two Buckets
Once the bucket with holes is filled with weeds, place it inside the second, hole-free bucket. The space between the two buckets is essential because it will allow the liquid to filter through. This liquid will be the nutrient-packed solution that will feed your plants. After placing the buckets together, it’s time to add water.
Step 4: Add Water

Now, take non-chlorinated water (rainwater is perfect for this) and fill the second bucket with enough water to fully submerge the weeds in the top bucket. Make sure the water covers all the weeds, as this will help break them down more evenly. Chlorine in regular tap water can harm the microbes in the fertilizer, so it’s important to avoid it for the best results.
Step 5: Add Garden Soil

To enhance the microbial activity and speed up the decomposition of the weeds, add a few handfuls of garden soil on top of the water. Garden soil is full of beneficial microbes that will help break down the organic material in the weeds. Mixing the soil with the water ensures that these microbes are evenly distributed, making the process faster and more effective.
After adding the soil, use a stick or something similar to stir the mixture. This will help mix everything together and ensure that the microbes from the soil are spread throughout the solution.
Step 6: Let It Sit

Once everything is mixed, cover the bucket loosely with a lid. This lid should be placed on top to keep pests out, but it should not be tightly sealed to allow airflow. Let the mixture sit for about seven days. During this week, the microbes will begin breaking down the weeds, and the water will absorb the nutrients and beneficial microbes. The liquid will turn into a potent fertilizer packed with nutrients and microbes that will be great for your plants.
Step 7: Remove the Top Bucket
After seven days, it’s time to check on your fertilizer. Carefully remove the top bucket with the holes from the second bucket. You’ll notice that the liquid has filtered through the weeds and accumulated at the bottom of the second bucket. This liquid is your homemade liquid fertilizer, ready to use.
Step 8: Dilute the Liquid Fertilizer

Although the liquid fertilizer is ready, it’s highly concentrated, so you’ll need to dilute it before applying it to your plants. The best ratio is to mix one liter of the concentrated liquid with ten liters of water. This ensures that the fertilizer is the right strength for your plants. Once diluted, it can be used to water your plants.
Step 9: Use the Fertilizer
Now that your liquid fertilizer is ready, it’s time to use it. Water your plants with the diluted solution, ensuring that the liquid reaches the roots. The nutrients and microbes in the fertilizer will help improve the health of your plants, boost their growth, and make them more resilient. You should start to notice stronger plants, healthier leaves, and even better yields.
Step 10: Dispose of the Remaining Material
Once you’ve removed the top bucket, you’ll have some leftover weed material. Don’t throw it away—this material can be added to your compost pile. The organic matter will continue to break down in the compost, enriching your soil for future use. It’s a completely eco-friendly process, with nothing going to waste.
Benefits of Homemade Liquid Fertilizer
Making your own liquid fertilizer offers several benefits. First, it’s cost-effective. Instead of purchasing expensive chemical fertilizers, you can make your own using materials that are already available in your garden. This process also helps reduce waste, as it uses weeds that would otherwise be thrown away. By creating your own fertilizer, you’re not only saving money but also contributing to a more sustainable gardening practice.
Another significant benefit is that the homemade fertilizer is packed with beneficial microbes that help improve soil health. These microbes break down organic matter and help your plants absorb nutrients more efficiently.
Over time, using this fertilizer will enrich your soil, making it more fertile and conducive to plant growth. Additionally, because this fertilizer is made from natural ingredients, it’s safe for the environment and won’t harm beneficial insects or animals in your garden.
Making liquid fertilizer at home is a simple and effective way to boost your plants’ health. The process is easy, natural, and free from the mess and unpleasant odors that often come with homemade fertilizers. By following these simple steps, you can create a powerful, microbe-rich solution that will nourish your plants and help them thrive.
Plus, you’ll be using locally available materials, reducing waste, and avoiding the need for harmful chemicals. So, gather your buckets, weeds, and water, and start making your own liquid fertilizer today!