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Reefertilizer® Grow & Bloom Cannabis Nutrients for Veg & Flower

4.76 out of 5
152 reviews

$57.95

✔ All-In-One Nutrition for Each Stage of Growth
✔ Delivers High-Quality Tasty, Potent, and Bountiful Buds
✔ Compatible With All Soil Types and Growing Mediums

New to Reefertilizer? See how the kit fits the system
Free shipping over $150 US & Canada · ships in 1–2 days
60-day money-back Happy Plant Guarantee
Discreet packaging Plain brown box, no branding
Made in Canada Blended and bagged in Canada
SKU: GBBUNDLE Category:

Description

Grow + Bloom

Everything for veg and flower.

Two perfectly balanced blends: Grow gives plants in veg the nitrogen they need to build structure, and Bloom switches to phosphorus, potassium, calcium and magnesium for flowers and terpenes.

Mix the powder into water and feed once a week. No complicated instructions or messy liquids.

At a glance
Includes Grow 20-5-10 + Bloom 5-30-20
Feeds Up to 8 plants through veg and flower
Dose One weekly feeding · 5 mL scoop inside
Mediums Soil, coco and hydro
Good to know Vegan, very low heavy metals

Two steps, one schedule

How to mix and feed your nutrients

1

Measure

Use the scoop in the bag to measure your nutrients for this week.

2

Dissolve

Stir it into a small glass of warm water until dissolved.

3

Feed

Mix into the rest of your water and feed, or add to your reservoir.

Why dry nutrients

Concentrated

A little goes a long way

Much more concentrated than liquids, lighter to ship and easier to store.

Shelf life

Keeps for years

Sealed in a cool, dry place, dry fertilizer keeps its potency almost indefinitely.

Clean

Easy to flush

Chelated nutrients dissolve fully and flush easily if you overfeed.

What’s in the bags

Reefertilizer Grow 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%
Certificate of Analysis (PDF) ↗
Reefertilizer Bloom 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%
Certificate of Analysis (PDF) ↗

Free Beginner’s Guide with every order

Germination, grow room setup, training for bigger yields, drying and curing — written by grower and co-founder Mike Drouin.

See the feeding chart

Additional information

Weight 1.1 kg

152 reviews for Reefertilizer® Grow & Bloom Cannabis Nutrients for Veg & Flower

4.8
Based on 152 reviews
5
82
82%
4
12
12%
3
2
2%
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1
1%
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  1. 3 out of 5

    Dave Conn (verified owner) –

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

    (0) (0)
  2. 5 out of 5

    John M. (verified owner) –

    First time ive used them and they make a huge difference

    (0) (0)
  3. 5 out of 5

    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.

    (0) (0)
  4. 5 out of 5

    Anonymous (verified owner) –

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

    (0) (0)
  5. 5 out of 5

    Janet B. (verified owner) –

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  6. 3 out of 5

    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

    (0) (0)
  7. 5 out of 5

    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.

    (0) (0)
  8. 5 out of 5

    Howie Parker (verified owner) –

    Great product!! Love how simple it is to use! Definitely be buying again!!

    (0) (0)
  9. 4 out of 5

    Jeffrey Parker (verified owner) –

    Great well balanced nutrients for cannabis. had no deficiencies,thick dense buds with tons of resin..Gelato forced flowered to finish in mid August..

    (0) (0)
  10. 5 out of 5

    John A. (verified owner) –

    Love it!

    (0) (0)
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Reefertilizer® Grow & Bloom Cannabis Nutrients for Veg & Flower
$57.95