The Powerful Powder For Flower
The All-in-One Powder For Cannabis in Flower
Reefertilizer® Bloom is the final step of our cannabis feeding program. Powerful chelated fertilizer provides immediately available nutritional elements to your plants.
Enhanced with calcium and magnesium, Reefertilizer Bloom will help fuel flower development and terpene production. One bag will help grow up to 8 plants.
- High in phosphorus and potassium
- Highest quality chelated nutrients
- Enhanced with Calcium & Magnesium
- Great for soil or autopot type systems
The Easiest Way To Feed Flowering Cannabis
Reefetilizer Bloom makes feeding your plants during their flowering phase an absolute breeze. No more mixing A and B liquids! All you need for big terpy buds is in this one powder.
Start feeding your plants Reefertilizer Bloom when you switch lights to 12/12 indoors or when preflowers appear outdoors.
| Flower Weeks 1-3 | 5ml scoop mixed into 4L of water |
| Flower Weeks 4-8 | 10ml scoops mixed into 4L of water |
| Additional Flower Weeks | 10ml scoops mixed into 4L of water |
| 1-2 weeks before harvest | Flush plants with plain water |
How to Mix & Apply Reefertilizer Bloom
Add the recommended amount of Bloom to water.
Mix Bloom Well.
Feed your plants or add to reservoir.
Note: Stabilizers in the Bloom powder might not fully dissolve. These will break down naturally and won’t harm your plants or irrigation system.
What’s In The Bag?
Reefertilizer® Bloom
When cannabis 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 short period , your cannabis plants will need nutrients with a higher ratio of phosphorus and potassium. These elements will fuel flower growth.
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. Each bag feeds up to 8 plants.
Guaranteed Analysis
(A fancy way of saying total weight by volume)
| 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% |
Get All The Guidance You Need
Includes Digital Getting Started Guide
We created our products to make it easier for folks like you to start growing their own cannabis at home.
We provide our Beginner’s Guide to Cannabis Cultivation free with each order and to our email subscribers.
Learn the basics of growing weed; from germinating seeds, caring for your plants through veg and flower, as well as processing that harvest you worked so hard to grow.
Written by Mike Drouin; an experienced cannabis grower and co-founder of Reefertilizer nutrients.
What Our Customers Think Of Reefertilzer Bloom
Common Question and Answers
Is Bloom Synthetic? Is that bad?
Reefertilizer Bloom is a synthetic fertilizer. Plants and soil microbes feed off the same elements provided by either organic or synthetic nutrients. A healthy living soil will maximize the amount of nutrients your plants can absorb.
Over-fertilization can be a issue but is easily fixed by flushing plants with water.
Bloom contains the highest quality chelated nutrients which are immediately available to plants and reduce wasted nutrients. Lower quality nutrients brands contain urea and other forms of nutrients that are not as easy to absorb and can end up in waste water runoff.
What makes Reefertilizer Bloom different from other bloom boosters?
Other bloom boosters usually need to be used with a full NPK fertilizer. Reefertilizer Bloom has a NPK ratio perfect for cannabis in flower as well as all the other micronutrients in bloom boosters.
Enhanced with calcium and magnesium, Reefertilizer Bloom reduces the number of additional inputs you might need.
Our goal at Reefertilizer is to get more folks growing their own cannabis. Reefertilizer provides easy-to-use and affordable nutrients along with straightforward guidance and support.
We designed our products to be lighter and have less packaging than our competitors and we’re happy to offer a 30-day return policy if you’re not happy with our products.
We’re not “big fertilizer”, we’re just three guys who love growing and using cannabis.
When do I start feeding my plants Reefertilizer Bloom?
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.
When I mix the Bloom powder it doesn’t dissolve completely, what gives?
What you’re seeing are left over stabilizers in the powder. These stabilizers are inert, completely safe, and won’t harm your plants or injectors. They will slowly break down over time in your soil or coco mediums.
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.
Get More From Your Plants
Reefertilizer Bloom Is Just One Part of a Balanced Diet
Reefertilizer was designed to make growing amazing weed at home easier than ever. The Reefertilizer grow kit will feed your soil as well as up to 8 plants with no need for additional inputs.
When all three are working together a successful harvest is easy to achieve.
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Best stuff I ever used. These nutrients kept my plant alive and no yellow leaves at harvest time even after flushing with water only for the last two weeks. My buds were nice and big and firm and smelled great too. I credit my grow to the nutrients from this website REEFERTILIZER and will be using these nutrients for as long as I’m around lol and their around as well. Now I’m smoking the finished product and the smell and flavor of the buds are spot on I highly recommend these nutrients they are safe and do the job they are supposed to and easy to use as well.
Thanks Guys
Ken
Very satisfied. Looking forward to getting the whole system for next spring
Great product. Used both bloom and grow. Worked amazing on my photos as well as the autos.