Powder Cannabis Fertilizer Bundle Grow + Bloom

Powder Cannabis Fertilizer Bundle Grow + Bloom


Feeds up to 8 Plants From Seed to Flower
Designed for soil and reservoir systems
Easy to mix powder nutrients

Bulk Pricing Now Available!
Save 20% when you buy 4 bundles or more.

Powder Cannabis Fertilizers for Veg & Flower

Vegetative plants and flowering plants have very different nutritional needs. While a plant is growing, it requires plenty of nitrogen. Nitrogen helps with the growth of new stems and leaves. This results in a bushy plant that can efficiently metabolize UV rays. Our Grow fertilizer is formulated to give your plants the nitrogen required, as well as various micro nutrients proven to aid cannabis growth.

Flowering cannabis plants are no longer focusing on overall growth, it is now putting energy into developing flowers. These flowers will eventually turn into buds, so a steady diet of nutrients is necessary. Phosphorus, potassium, magnesium, and calcium are the heavy hitters at this stage of growth. Having ample amounts of each will result in large dense buds with an amazing aroma. A lot of commercial fertilizers accomplish this with several products, we like to do it with one.

Crafted to Grow Good Weed Easy

Our Grow and Bloom cannabis fertilizers were designed to make growing cannabis fun and easy. No more mixing several liquids together and no more paying for water. Powder cannabis nutrients make it easier to measure correct nutrient concentrations. Grow and Bloom can be used with additional nutrients like “cal-mag” if required but provide the baseline nutrients to support a plant from seed to harvest. Powder nutrients are also easy to flush in case you run into over fertilization problems.

Feed your cannabis plants in 3 quick steps


Add powder to 250ml of warm water.

Powder Cannabis Fertilizer Bundle Grow + Bloom


Mix until dissolved.

Powder Cannabis Fertilizer Bundle Grow + Bloom

Step Three

Mix solution into water for feeding or resevoir. 

Powder Cannabis Fertilizer Bundle Grow + Bloom

Feed your plants once a week.

Marijuana Grow Fertilizer

Veg Phase

Start feeding your plants Reefertilizer Grow when the plant has 3-4 sets of leaves.

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
Marijuana Bloom Fertilizer

Cannabis Nutrient Requirements From Seed to Flower

A recipe for faster cannabis growth

Reefertilizer Grow contains the essential nutrients required to establish strong stems, good leaf structure, and a healthy root system. Our fertilizer are synthetic which allows them to be metabolized much faster than organic blends. Essential elements are available for the plant as well as the living microbes in your soil.
Plenty of Nitrogen is required for the plant to develop leaves and thick stems. Micro nutrients will help fuel many cell functions crucial to photosynthesis and cellular replication.

Major Nutrients For Cannabis in Veg


Minor Nutrients For Cannabis in Veg


Crafted for flowering cannabis plants

When cannabis plants begin to flower, their nutrient requirements change. Early on in flower, the plant will use its stored nitrogen for a quick growth spurt. After this growth spurt, your cannabis plants will need nutrients used for bud/flower production.
Reefertilizer Bloom provides a higher ratio of phosphorus as well as calcium and magnesium. These three elements are proven to increase bud size and help terpene production.

Major Nutrients For Cannabis in Flower


Minor Nutrients For Cannabis in Flower


Guaranteed Chemical 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%



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 more from your soil grow with Reefertilizer® Start. 100% organic compost infused with mycorrhizal fungi.

If you’re planning on growing cannabis plants in soil this amendment will help you achieve the best possible results.

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47 reviews for Powder Cannabis Fertilizer Bundle Grow + Bloom

  1. Avatar

    Travis Mitchell Nan

    Stuff works amazing and a little goes a long way!

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    Rob D. (verified owner)

    Fantastic. The Grow really added a lot of thickness and lushness to my plants. And the Bloom has my flowers exploding! Can’t recommend highly enough.

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    EVAN DAVIES (verified owner)

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    Michael W. (verified owner)

    I don’t know how well other fertilizers would have done and I don’t know what the results would have been without fertilizer at all. What I do know is that I grew big healthy plants and got a nice big harvest. What more could you ask you say? Well I certainly don’t know any other company who would answer all my questions and help me through every step of the process, and this is exactly what reefertilizer did with me – I’m a novice grower. And the price was right. I will definitely recommend reefertilizer to everybody.

  5. Avatar

    Tim H. (verified owner)

    Easy to use and works amazing!!

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    Kim Irwin (verified owner)

    We have tried multipul brands of nutes and NOTHING compares to reefertilizer! Super easy and very effective! I will never switch again. Nothing beat being Canadian made either!

  7. Avatar

    Carin G. (verified owner)

    I chose Reefertilizer after trying Remo, and me and my plants are happy I did. Easy to use, great results. Just check my YouTube channel and see at: Ted Farmer

  8. Avatar

    Todd (verified owner)

    Super simple product to use for first time growers.

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    Jeffrey D. (verified owner)

    Extremely happy with the fertilizer and the support from Reefertilizer. I got 43 ounces from my (4) plants.

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    Anonymous (verified owner)

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    Travis (verified owner)

    This shit is the bomb! Reefertilizer delivers more then they let you know! I run with HLG LEDs an haven’t yet had to add any cal/mag, this is the start of third flower cycle…….LOVE IT Mike is super fast to respond with your order!!! An it’s CANADIAN. K13

  12. Avatar


    I had good results. Would recommend thanks!!!

  13. Avatar

    mike B. (verified owner)

    Growing good weed should not be hard, I Started out with no Idea what I was doing and immediately got awesome results. I will not ever bother with any other nutrients after comparing my results with everyone I know! And It lasts forever, I am on my 3rd harvest of 4 plants and I have pleanty left! If you are on the fence, get off and grow some awesome weed!

  14. Avatar

    Rémi L. (verified owner)

    The most simple fertilizer I’ve used, with great results.

  15. Avatar

    DAVID (verified owner)

    have only been using for two-three weeks and the plants have responded well

  16. Avatar

    francine (verified owner)

    Easy to use for both soil and hydro. I’m new to soil base and my plants are growing nicely.

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  17. Avatar

    Kenneth Conte (verified owner)

    Plants are doing great so far !

  18. Avatar

    Tyler j. (verified owner)

    The garden is growing very well, myself and a few others all bought the same clones. I however purchased Reefertilizer and mine are doing better than the others

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  19. Avatar

    Anthony Thibeault (verified owner)

    I’m having trouble getting the fertilizer to dissolve in water

  20. Avatar

    Carl T. (verified owner)

    This is my first time using Reefertilizer in many years of growing and there are as many BEST fertilizer to bye as there are many strains of seeds to buy i have used different types of fertilizer over the years always growing 2 plants so i won’t know until harvest time on a rating i will also (for fun) with my growing friends have a miniature cannabis cup every october and this test will be more accurate. I am a senior and grew up in the 60st. been a judge in2009 cannabis cup and i can prove it. So contact me in October

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  21. Avatar

    Tony O’Brien (verified owner)

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    David A. (verified owner)

    Exceptionally slow delivery, and a lack of a customer service email or telephone address will make me hesitate from ordering again.

    • Avatar

      Mike Drouin (store manager)

      Hello David. I’m sorry your order took so long to ship. Because of COVID there were delays with Canada Post picking up our packages and shipping them. Once things start getting back to normal I’m sure the shipping times will improve.

  23. Avatar

    Anonymous (verified owner)

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    Bradley (verified owner)

    No burning on leaves,

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  25. Avatar

    Sally T. (verified owner)

    My plants are amazing this year…couldn’t be happier

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  26. Avatar

    John F. (verified owner)

    Very impressed,and want to continue with this product from now on..instead of going thru a bunch of different bottles (nutrients) to feed them.
    And Will continue to use reefertilzer only from now on. !!
    My cannabis is growing healthy and the harvest was very enjoyable
    I would recommend this to all growers!

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  27. Avatar

    Samantha F. (verified owner)

    Loved it so much that I got family to buy some 🙂

  28. Avatar

    Anonymous (verified owner)

  29. Avatar

    troy rose (verified owner)

    Good stuff

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  30. Avatar

    Anonymous (verified owner)

    Very happy with the product so far … First time using powder nutrients and haven’t had a chance to use the bloom nutes yet. The grow nutes however have noticeably been very well received by the plants and have no issues with nutrient burn.

    Will definitely purchase again!

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  31. Avatar

    Devrick Cunningham (verified owner)

    Very easy to use and works amazing!

  32. Avatar

    Aaron (verified owner)

    Very happy so far! I started using the nutrients on June 18th and my tallest plant was about 18″.

    Its Aug and my tallest are now over 72″! I really found the plants produced alot more consistent/ hearty branches after starting the system.

    I’ve got a few on the Bloom now and are stacking up nicely!

    Happy growing!

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  33. Avatar

    Gerard Landry (verified owner)

  34. Avatar

    Dennis Abraham (verified owner)

  35. Avatar

    Anonymous (verified owner)

  36. Avatar

    Nicholas F. (verified owner)

    Good price for grow and bloom products

  37. Avatar

    Michael L. (verified owner)

    I’m a first time grower, and I thought it would be hard to grow and maintain, but It’s not and I’m getting great satisfaction from growing cannabis.
    And your Reefertilizer is so easy to use. Thanks for a great product!

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  38. Avatar

    Robert W. (verified owner)

    Just starting to bloom about 10 days ago. Works well as advertised.

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  39. Avatar

    Thomas (verified owner)

  40. Avatar

    Blair D. (verified owner)

  41. Avatar

    Dave Conn (verified owner)

    Im not so sure it made a difference but going to try again and see.

  42. Avatar

    John M. (verified owner)

    First time ive used them and they make a huge difference

  43. Avatar

    Robert I. (verified owner)

    I finally grew plants to be proud of! Super easy feed schedule with the right balance of nutrients. You can’t screw up. Here are my AK47 auto flowers at 13 weeks. I grew them in pro mix, which is a pretty neutral grow medium. I snuck in a couple extra bloom feeds with great success.

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  44. Avatar

    Anonymous (verified owner)

    this stuff is so powerfull it turned my female plant into a male one 🙂

    • Avatar

      Mike Drouin (store manager)

      That’s not how that works… but thanks for the kind review!

  45. Avatar

    Janet B. (verified owner)

  46. Avatar

    Cambridge Mayer (verified owner)

    This product has a lot of potential, plants got nute burned by the 3rd week of the first nutrients type however the second one went really good so I give it 3 stars

  47. Avatar

    Brian (verified owner)

    First time grower. I’m using a tent with Promix HP. I am growing both photo and auto plants and both are healthy and thriving. My photo has recently started flowering and I moved to the Bloom immediate effect. My buddy next door had a few outdoor plants and was complaining about spots and such on his leaves. I let use the Grow stuff and the effects were immediate with most of the abnormalities disappearing along with a dramatic growth spurt. The price is great considering how little (3 tsp/4l) is required for a once a week feeding.

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