White paper 01 · Cannabis & controlled environment · Grower proof series
The layer above
your base feed
What 70+ growers found when they added Bloom over what they already ran: an Australian range with 26 years in the US market, reviewed in real rooms by real growers, plus an honest account of what we can prove so far and what we can’t.
Reading time ~4 minutes · Label figures transcribed from the product labels · Sources listed at the end · October 2026
Who this is for
Shops, buyers and growers
For hydro shops, buyers and growers in indoor and controlled-environment cannabis: tents and small rooms through to multi-light commercial rooms, in soil, living soil, coco or straight hydro.
Bloom sits on top of a grower’s existing base feed rather than replacing it, so a shop can stock it alongside the base lines it already sells. Every quote here comes from growers running Bloom in their own rooms, on their own genetics and their own base feed.
70+
Growers on the trial tracker · US, Canada and France
100+
Grower quotes on file · Oct 2024 – Oct 2026
26
Years Bloom has been sold in the US · Agricultural Organics, South Australia
What’s actually different
Three things worth knowing
An additive layer, not a base
Bloom products are built to sit on top of an existing base feed and fill the gaps in it. The range also includes two-part bases (Euro, Grow and Flower A + B) for growers who want one house top to bottom, but nobody has to switch.
Australian made, long track record
Made in South Australia by Agricultural Organics and sold into the US for 26 years. This isn’t a new line looking for its first users.
Made from marine, humic and plant extracts
Seaweed, kelp, alfalfa and humic inputs. It is not USDA-certified organic, and this paper doesn’t say otherwise.
Worth knowing. Growers in the review record describe Bloom as something they added over the top of what they already ran. Their comparisons are to their own previous rounds, not to a lab control. The one lab comparison we have is the FROST trial, linked below.
What growers are reporting
In their own words
Quotes come from Bloom’s grower review records. Some are lightly trimmed for length and spelling, with the meaning unchanged; the original messages are on file. Growers in the trial program agreed to their feedback being shared.
“Just chopped my last grow and I’m impressed. Roots and SWTNR for veg, Seafuel and Phat for flower: noticeably more colour and no signs of deficiency.”
@houseofnuggs
Roots · SWTNR · Seafuel · Phat · 4 Mar 2026
“It’s night and day: more biomass, terpier and smoother.”
@squidward_organics
Roots · 5 May 2026
“I’ve seen better results with these products than any other line I’ve tried.”
@804growtent
Ooze · 5 May 2026
“The Phat charged my plants with a noticeable swell on bud size and significant frost.”
@jacksonbinan
Phat · 8 Aug 2025
“Used Ultra weeks 1–2, switched to Phat weeks 3–4, and these plants are finishing early with major bulk.”
@greendiamondgarden_est2015
Ultra · Phat · Ooze · 28 Dec 2025
“Everything’s greasy in the tent, from Ooze to Phat to the Sweetener. Week 7 and the buds are so heavy the branches are falling everywhere.”
@stillstanding_10
Ooze · Phat · SWTNR · 1 Apr 2026
“The roots definitely helped. The three plants I used them on are roughly 6–10 inches taller than the ones I didn’t. Same PPFD, EC and water times; the only difference was the Bloom.”
@apollos_oasis
Roots · 10 Feb 2026
“Between the genetics and Ooze, that’s a winning combo. Probably top two smoke of all time.”
@gotheat420
Ooze · 31 Aug 2026
Where the proof is deep, and where it isn’t
Unique growers with a quote on record, per product · counted 30 Oct 2026
Ooze
25+ growers
Roots
20+ growers
Phat
20+ growers
Silica
10+ growers
Seafuel
10+ growers
Sea Minerals
9 growers
SWTNR
6 growers
Ultra
6 growers
Final
5 growers
The numbers
What’s on the label
Guaranteed analysis is the figure printed on the product label, not a marketing claim. Rates are Bloom’s standard schedule.
ROOTS
Guaranteed analysis 0.0083-0-0.43
Total Nitrogen (N)
0.0083% (0.0021% ammoniacal, 0.0062% water-soluble organic)
Soluble Potash (K₂O)
0.43%
Derived from
Durvillaea potatorum (seaplant extract)
Also contains (non plant food)
0.075% humic acid (from leonardite), 0.054% thiamine hydrochloride (vitamin B1)
Rate
0.5 ml per litre in feed; 1 ml per litre as a dip for cuttings and plugs
PHAT
Guaranteed analysis 0.0051-0.5258-0.0143
Total Nitrogen (N)
0.0051% (0.0017% nitrate, 0.0006% ammoniacal, 0.0028% water-soluble organic)
Available Phosphate (P₂O₅)
0.5258%
Soluble Potash (K₂O)
0.0143%
Boron (B) · Molybdenum (Mo)
0.1555% · 0.054%
Derived from
Laminaria japonica, Lessonia nigrescens, boric acid, sodium molybdate
Also contains (non plant food)
0.075% humic acid (from leonardite), 0.054% thiamine hydrochloride (vitamin B1)
Rate
2.5 ml per litre every feed, weeks 3–4 of flower
OOZE
Guaranteed analysis 0.306-2.337-2.4573
Total Nitrogen (N)
0.306% (0.0323% ammoniacal, 0.2737% water-soluble organic)
Available Phosphate (P₂O₅)
2.337%
Soluble Potash (K₂O)
2.4573%
Boron (B) · Molybdenum (Mo)
0.16% · 0.0578%
Derived from
Molasses, Ahnfeltia plicata, Laminaria japonica, boric acid, sodium molybdate
Also contains (non plant food)
0.075% humic acid (from leonardite), 0.054% thiamine hydrochloride (vitamin B1)
Rate
2.5 ml per litre every feed, weeks 5–8 of flower
What we can stand behind
Sourced, or it isn’t here
Bloom has been sold in the US market for 26 years.
Source: Agricultural Organics company history
The range is made in Australia by Agricultural Organics.
Source: Product labels: Agricultural Organics (Aust) P/L, Green Fields SA
Bloom’s fish inputs use Southern Bluefin Tuna.
Source: Groigen and Florigen labels
In the FROST trial (same cultivar, same room, same base feed) the OOZE batch tested 4.2× the myrcene and 2.1× the linalool, with total terpenes about the same (1.95% vs 1.94%).
Source: SC Labs PhytoFacts reports, samples collected 28 Feb 2025
100+ grower quotes are on file, and dozens are published with photos on the reviews page.
Source: Bloom grower review records, counted 30 Oct 2026
Want samples in front of your growers?
Full range, pricing and the live reviews page are one click away. That’s how most of the growers quoted here got started.
See every grower review →Talk to Nate directly: nathan@bloomyellowbottles.com · (970) 556-1678 · bloomyellowbottles.us · @bloomyellowbottles · @bloom_crew_nate
Sources
- Agricultural Organics company history — Bloom has been sold in the US market for 26 years.
- Product labels: Agricultural Organics (Aust) P/L, Green Fields SA — The range is made in Australia by Agricultural Organics.
- Groigen and Florigen labels — Bloom’s fish inputs use Southern Bluefin Tuna.
- SC Labs PhytoFacts reports, samples collected 28 Feb 2025 — FROST trial terpene results.
- Bloom grower review records, counted 30 Oct 2026 — grower quote counts.