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Reefertilizer® Grow & Bloom Cannabis Nutrients for Veg & Flower
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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

Reefertilizer Grow
Grow · 20-5-10

Feed through veg

Start at 3–4 sets of leaves: 1 scoop per 4 L, rising to 3.
Reefertilizer Bloom
Bloom · 5-30-20

Switch at flower

At 12/12 or first preflowers: 1–2 scoops per 4 L.
Reefertilizer Start
Start · 2-1-2

Add Start for the soil

Complete the system with kelp and mycorrhizae at transplant.

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%
2
1
1%
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  1. 5 out of 5

    Chris (verified owner) –

    Easy to use and fantastic healthy results!!

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

    Anonymous (verified owner) –

    This fertilizer caused a big problem for me.. My outdoor plants have totally outgrown their grow bed and we arent even half way through!!!! WOW

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

    Donald B. (verified owner) –

    Easy to use!

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

    Barry Young (verified owner) –

    Very easy to use this product. Instructions are great and easy to ready and understand. Recommend this product to everyone.

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

    Don (verified owner) –

    Great fertilizer and prompt delivery. Our plants are bigger and healthier than ever. I will be ordering more in the next month.

    (0) (0)
  6. 5 out of 5

    Tom Clarey (verified owner) –

    Easy as pie better plants than I have ever grown love it

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

    Steve Smith (verified owner) –

    Hit my plants with the bloom and they really took off.I use the same seeds regularly and my return was almost double! Great product.

    (0) (0)
  8. 4 out of 5

    R R. (verified owner) –

    Be sure to work your way up to suggested amounts…1/8,1/4,3/8,1/2…weekly.For autoflower plants.

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

    Travis (verified owner) –

    My first time growing so far so good.

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

    Philippe (verified owner) –

    Excellent product.

    (0) (0)
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