Plant Nutrients Simplified
Grow Simply.
Reefertilizer was built with a post-prohibition state of mind. Plants should be accessible for all so 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.
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.
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.
A Step by Step Cannabis Grow System
Step One
Start With Good Soil
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 plant 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
Step Two
A Thriving Veg Period
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 plant growth.
- Easy to measure weekly feeding
- Higher nitrogen content to aid stem and leaf growth
- Vegan and lower carbon imprint
Step Three
Focusing on Flowers
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
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 this flowering fertilizer different from “other brand”?
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.
How To Use Reefertilizer To Grow Good Plants at Home
Here’s a typical example of growing cannabis for the first time while using Reefertilizer nutrients. These are real customer photos from someone who had never grown before. They grew 4 plants in soil using a 4×4 grow tent with a 600 watt LED grow light.
Growers Love Reefertilizer!
“Reefertilizer is some top notch stuff for your plants”
- Terry – Portland Grower
“Your nutrients have been quite successful for me in my testing. A little goes a long way!”
- Jeremy – California Grower
“Bought Reefertilizer package and boy are my plants loving it. Ill be back for more.”
- John – BC Grower
How To Use Reefertilizer for Your Indoor or Outdoor Gardens
Using Reefertilizer Start to Build a Healthy Root Environment
Reefertilizer Start can be used in 3 different ways depending on your growing style.
No matter which way you choose to use it, Reefertilizer Start will inoculate your soil with mycorrhizae and provide beneficial micronutrients that will feed your plants and soil microbes.
Three ways to use Reefertilizer Start
Starter Soil
Mix Reefertilizer Start into some potting soil to make your own super starter soil for seeds or cuttings in small pots.
Transplant Inoculant
Use Reefertilizer Start when you transplant into a larger pot. About 3 scoops per hole should do the trick.
Top Dressing
Apply Reefertilizer Start as a top dressing. Apply 3 scoops around the base of your plant and water normally. Great option for autoflowers.
How Many Plants Will This Feed?
Each Reefertilizer growing kit will be enough to produce 6 to 8 plants. How much you will use to feed your plants will depend on the length of your veg and flower period, the cultivar, and your growing environment.
Reefertilizer Start Guaranteed Analysis
REEFERTILIZER® START
Organic Brown Sea Kelp Granules
Mycorrhizal spores (Rhizoglomus irregulare) 2 spores / g
| Total Nitrogen (N) | 2% |
| Available Phosphate | 1% |
| Potassium | 2% |
Using Reefertilizer Grow and Bloom for Fast Growth
Reefertilizer Grow and Bloom are our powder blends for veg and flower. They are chelated nutrients, which means they are immediately available to your plants.
These are more than just base nutrients. They also contain micronutrients that will improve plant cell structure, flower formation, and terpene production.
Follow our simple weekly feeding schedule or dial in your plants’ perfect dose using EC.
Easy to flush if you ever accidentally overfeed your plants. Works well with organic amendments and grows amazing healthy plants indoors and outdoors.
How Measure and Mix 4L of Reefertilizer Nutrient Solution
Measure
Add the recommended amount of powder fertilizer Grow or Bloom to 250ml of water.
Mix
Mix solution well until the powder dissolves. Using warm water helps this process.
Feed
Add solution to 3.75L of water and mix well. You’re ready to feed your plants.
How Many Plants Will This Feed?
Each Reefertilizer growing kit will be enough to produce 6 to 8 plants. How much you will use to feed your plants will depend on the length of your veg and flower period, the cultivar, and your growing environment.
Reefertilizer Start Guaranteed Analysis
REEFERTILIZER® GROW
| 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® BLOOM
| 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% |
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 |
Need Help Getting Started?
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Setting up a Grow Room
Grow Techniques for Getting Larger Yields
How to Cure and Dry Cannabis
Even More…
Geoffrey (Verified Grower) –
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.
Jay (Verified Grower) –
The best fertilizer I have ever used. Massive buds and it’s not even September yet. The stocks on my plants are as large as baseball bats. I’m 6’4”
DENIS (Verified Grower) –
So far has not failed me
Samuel (Verified Grower) –
Anonymous (Verified Grower) –
Loving these nutes!!! My indoor and outdoor photos are in bloom now and doing well.