Feed Your Soil And Your Plants
Simply Grow Good Weed.
Simple and efficient nutrients blended for your plants. Reefertilizer was built with a post-prohibition state of mind. We developed nutrients that are easy to use, versatile, and cheap. We provide plenty of guidance to help you through your first few grows.
Grow Greener Weed.
Gardening shouldn’t hurt the planet. This is why we chose to develop dry nutrients which are easier to ship and use less plastic packaging. They are also vegan and contain fewer heavy metals than many other non-vegan fertilizers.
Grow Better Weed.
Our three-part kit was designed to get you a nice yield every time with less work. Perfectly blended for each phase of growth and containing key micronutrients for amazing tasting and smelling plants indoors and outdoors.
How To Use Reefertilizer To Grow Good Weed at Home
A Step by Step Grow System
Reefertilizer® Start – Kelp Meal + Mycorrhiza
Reefertilizer Start provides beneficial microorganisms to your soil, coco, or peat moss growing mediums.
Organic kelp meal and mycorrhizal spores will help feed and grow with young roots.
Add a few scoops before transplanting and use it as a top dressing every other week.
- Versatile as top dressing, amendment, or transplant booster
- Rhyzoglomus Irregulares grows with and improves roots efficiency
- Over 60 trace elements will feed the soil and the plant
Add Before Transplanting
Mycorrhiza grows best when in direct contact with root systems. This friendly fungus protects roots and improves water and nutrient uptake.
Monthly Top Dressing
Kelp meal as a top monthly top dressing nourishes beneficial bacteria in your soil.
Reefertilizer® Grow – Water Soluble Nutrients For Plants in Veg
When your weed plants have their first 3-4 sets of leaves, you can begin feeding them Reefertilizer Grow.
Our Canadian made powder fertilizer is a blend of micro and macronutrients crucial for the vegetative phase of growth.
- Easy to measure weekly feeding
- Higher nitrogen content to aid stem and leaf growth
- Vegan and lower carbon imprint
Add the necessary amount of Grow to a small glass of warm water.
Mix Grow into the water until dissolved.
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Mix solution into water for feeding or reservoir.
Reefertilizer® Bloom – Powerful Flower Powder Nutrients
With a NPK ratio perfect for flowering plants and fortified with calcium and magnesium;
Reefertilizer bloom will encourage bud and terpene (essential oil) production.
This is a concentrated formula and does exceptionally well with large outdoor plants.
Switch plants to a weekly feeding of Reefertilizer Bloom when you first see signs of flower.
- Immediately available chelated nutrients
- Powder nutrients have a longer shelf life
- Includes step-by-step grow guide
Add the necessary amount of Bloom to a small glass of warm water.
Mix Bloom into the water until mostly dissolved.
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Mix solution into water for feeding or reservoir.
Easy Weekly Feeding Schedule
Reefertilizer likes to keep things simple. Feed your plants once a week and top up your soil with Start once a month.
Some folks split the weekly dose and feed their plants twice a week.
If you need more or less nutrient solution, just use the same ratio no matter how much water you’re using.
If you accidentally over feed your plants, you can easily flush your medium with water.
Feed Your Plant and Your Soil
Reefertilizer Start organic sea kelp feeds beneficial microbes in your soil. Mycorrhizal spores help grow fungal systems that increase water and nutrient uptake.
Reefertilizer Grow and Bloom are synthetic chelated fertilizers. Their nutritional elements are immediately available to plants once mixed into water. They speed up growth and stop deficiencies fast.
When all three parts of the Reefertilizer grow kit are used together you can greatly improve your plant’s growth rate.
Guaranteed Analysis
Organic Brown Sea Kelp Granules
Mycorrhizal spores (Rhizoglomus irregulare) 2 spores / g
| Total Nitrogen (N) | 2% |
| Available Phosphate | 1% |
| Potassium | 2% |
Reefertilizer® Start
Soil amendment and top dressing made from organic sea kelp granules and mycorrhizal spores.
Organic sea kelp is packed with beneficial amino acids and enzymes. Mycorrhizal fungus improves the plant’s ability to absorb water and nutrients.
Not to be used with hydroponic systems, but works great with coco coir and soil.
Mycorrhizae
This fantastic fungus grows symbiotically with all sorts of plants. When these spores are close to the roots they begin to grow. Slowly a fungal structure grows that will protect roots from drought while improving nutrient and water uptake.
Brown Sea Kelp
Not high in NPK but packed with micronutrients, enzymes, and amino acids. Organic sea kelp will feed microbes in your soil. Happy microbes create an ideal environment for nutrient availability.
Guaranteed Analysis
| Total Nitrogen (N) | 20% |
| Available Phosphate (P2O5) | 5% |
| Soluble Potash (K2O) | 10% |
| Magnesium (Mg) | 3% |
| Boron (B) | 0.02% |
| Copper (Cu) | 0.05% |
| Iron (Fe) | 0.10% |
| Manganese (Mn) | 0.05% |
| Zinc (Zn) | 0.05% |
Reefertilizer® Grow
Reefertilizer Grow contains the essential nutrients required to establish strong stems, good leaf structure, and healthy root systems. Grow is a chelated synthetic nutrient that allows elements to be metabolized immediately, much faster than organic fertilizers.
These essential elements and added micronutrients help fuel many cell functions crucial to photosynthesis and cellular replication.
Macronutrients For Plants in Veg
Micronutrients For Plants in Veg
Guaranteed Analysis
| Total Nitrogen (N) | 5% |
| Available Phosphate (P2O5) | 30% |
| Soluble Potash (K2O) | 20% |
| Calcium (Ca) | 4% |
| Magnesium (Mg) | 3% |
| Boron (B) | 0.02% |
| Copper (Cu) | 0.05% |
| Iron (Fe) | 0.10% |
| Manganese (Mn) | 0.05% |
Reefertilizer® Bloom
When plants begin to flower, their nutritional requirements change. Early on in flower, the plant will use its stored nitrogen for a quick growth spurt. After this growth spurt, your plants will need nutrients with a higher ratio of phosphorus and potassium. These elements will fuel flower production.
Reefertilizer Bloom also provides micronutrients such as calcium and magnesium. These two elements are common deficiencies and are proven to increase bud size and help terpene production.
Macronutrients For Plants in Flower
Micronutrients For Plants in Flower
Recommended Weekly Feeding Schedule
Veg Phase
When your plants have 3 to 4 sets of leaves, you can begin feeding them Reefertilizer Grow once a week.
| Veg Week 1 | 1 scoop mixed into 4L of water |
| Veg Week 2 | 2 scoops mixed into 4L of water |
| Veg Week 3 | 3 scoops mixed into 4L of water |
| Additional Veg Weeks | 3 scoops mixed into 4L of water |
Flower Phase
Start feeding your plants Reefertilizer Bloom when you switch lights to 12/12 or when preflowers appear.
| Flower Weeks 1-3 | 1 scoop mixed into 4L of water |
| Flower Weeks 4-8 | 2 scoops mixed into 4L of water |
| Additional Flower Weeks | 2 scoops mixed into 4L of water |
| 1-2 weeks before harvest | Flush plants with plain water |
What Our Customers Think of Reefertilizer Grow Kits
Why We Created Reefertilizer
We believe in a world without a stigma on a plant.
From treating pain to just having fun, this is an amazing plant that everyone should have the right to grow.
We’re here growing with you. Just check out these amazing plants and growers Reefertilizer has helped to empower!
Questions and Answers
Is this product organic or synthetic?
Reefertilizer Start is organic. It consists of brown sea kelp and mycorrhizal spores.
Reefertilizer Grow and Bloom would be considered synthetic fertilizers. Reefertilizer Grow & Bloom contains chelated nutrients; which are inorganic metal nutrients that are encased by organic molecules. They are immediately available to your plants and don’t need time to break down compared to organic fertilizers.
Will synthetic fertilizer harm microbes in my soil?
Microbes in soil feed off the same elements available through organic or synthetic nutrients. Avoiding over-fertilization and maintaining the right soil pH will keep soil microbes happy.
What makes Reefertilizer different from “other brands”?
Reefertilizer tries to simplify the growing process by providing a full range of macro and micronutrients that aid with plant specific growth. By blending these together as a water soluble powder, it will save you time and money compared to using multiple products.
Reefertilizer Start helps feed microbes in your soil and improves the efficiency of the root system. Well-fed soil biodiversity and super-charged roots mean your plants are maximizing growth and fertilizer use.
Reefertilizer Grow is high in nitrogen which helps build strong stems and leaves quickly.
Reefertilizer Bloom is low on nitrogen which is important during flowering, and it has a little extra calcium and magnesium which is a common nutrient deficiency in flowering plants.
Because Grow and Bloom are chelated nutrients, essential nutritional elements are immediately available to your plants and quickly fix nutrient deficiencies.
When do I start feeding my plants Reefertilizer?
Start can be first used when you transplant your seedling or clone to a bigger pot. Reefertilizer Start can then be used as a monthly top dressing.
When your plant has 4 to 5 sets of leaves you can begin feeding them Reefertilizer Grow weekly. Water as needed between feedings.
When you start to see flowers begin to form around the nodes (where the branch meets the stem) you can switch to feeding your plants Bloom. For autoflowers, this is usually 3 or 4 weeks in. For outdoor plants, this is usually around July or August in the northern hemisphere.
How much do I feed my plants?
Start with 1 scoop (5ml) for every 4L (1 gallon) of water. Feed each plant weekly with enough of this solution to fully saturate the soil and have a bit of runoff. You can water your plants as needed in between feedings. Some folks split the dose and feed twice a week. Both work fine, pick whichever method is easier for you.
Can I pre-mix these nutrients?
Because these are chelated nutrients they don’t do well being mixed into water and stored for long periods of time. The elements within the solution can react with each other and lower the effectiveness of the fertilizer. A few days is okay, but anything longer than a week might not be a good idea.
Need Help Getting Started?
When you sign up or make a purchase you will get a download link for our Beginner’s Guide to Home Cultivation.
Along with this helpful guide, you will receive product updates, discounts, and our latest articles about growing and processing plants at home!
- Seed Germination
- Setting up a Grow Room
- Grow Techniques for Getting Larger Yields
- How to Cure and Dry Your Harvest
Much More…
I have used many other awesome products however, Reefertilizer this 3 step feeding program is in a class of its own, is an absolute fail proof product… any experience level can grow amazing cannabis with ease if this is your absolute first time or you’re 100th successful time. Not to mention the customer service and the information available on how to use these products is second to none. This is an absolute must have in your growing arsenal. I can’t stress enough, it takes out all the guess work of having measuring nutrients like Cal mag, pk ,adding stackers or extra soil amendments it’s all right there in this 1-seed-2-veg-3-bloom-step program.. there’s the starter which is absolutely excellent for starting seedlings/clones and young plants and then for the veg stage there’s a veg fertilizer that does exactly what it’s supposed to do and grows amazing healthy plants and prepares them for the flowering and guess what when they get there there’s a bloom product.
Don’t take my word or anybody elses let reefertilizer 3 step speak for itself!
I am thrilled with these nutrients. They are easy to use and the results are great. I grew this Girl Scout Cookie Autoflower outside in 69 days – seed drop to chop. She’s curing in the jar and smells amazing. Can’t wait to see my next crop from my indoor tent using Reefertizer nutrients.
This is my first grow and I don’t have a lot of experience with nutrients, Have to say Referrilizer made it very easy and the nutrients have done amazing for the plants.
It’s my first time growing,I’m in the grow phase right now and using as directed and everything is going great. Got some great baby buds beginning and I’m getting psyched! I cant wait to get far far away from dispensary weed.
I dont know why I haven’t heard of this company sooner!!