Bloom Yellow Bottles

Young clone in a rockwool cube with white roots pushing out the sides

Bloom Yellow Bottles

The 12-Week Opportunity Map

Your base feed keeps it alive. These are the weeks you win.

Every grow has a handful of moments where a plant is asking for more than N-P-K. Keep the base you already run. Add the right bottle at the right week, and only the weeks you care about.

White mineral salt crust building up on coco coir around a drip emitter

The bit nobody tells you

Full reservoir. Hungry plant?

Plenty of food can sit in the root zone and still not get used. Some of it gets locked up by pH and salts. And the big moments, like rooting, the flip into flower, bulking and the late weeks, are when a plant is under the most pressure.

That’s where Bloom fits. Seaweed, Southern Bluefin Tuna, humate and silica, run on top of whatever base you already use.

The map

Five moments. Pick the ones that matter.

Shown on a 12-week run: two weeks of veg, ten weeks of flower. Longer veg? Just slide it along. Tap any bottle to see what it does, or go straight to the shop.

Dosed on your normal weekly feed. Rates are on every label and product page.

Fine root hairs on a young rootWeeks 1–2

Clone & root: build the engine

A tiny plant can only drink what its roots can reach. More root early means more of your feed gets used for the rest of the run.

The root-start combo →

First white pistils appearing at tightly stacked nodes in early flowerWeeks 3–4 · flower wk 1–2

The flip: the switch into flower

Going from growing to flowering is a big change for the plant. Ultra is kelp and alfalfa for the first two weeks of flower.

The structure combo →

Phat in use mid flowerWeeks 5–6 · flower wk 3–4

Bulk: size and density

Mid flower is when the flowers fill out. Phat is the seaweed feed for flower weeks 3 and 4 on the standard schedule.

Same strain, same feed, different flower →

Late-flower bud covered in frosty trichomesWeeks 7–10 · flower wk 5–8

Resin & terps: the bit people smell

Weight is one thing. Frost, oil and nose are what people actually pay for. Ooze is the late-flower feed for weeks 5 to 8.

The flower quality & terpenes combo →

Final in the last two weeks of flowerWeeks 11–12 · last 2 weeks

The finish: flush it, or finish it?

Final was one of the first bottles in the range, built 26 years ago for the last two weeks of flower. Worth a look before your next harvest.

See it on the feed charts →

Southern kelp forestAny week, as needed

The all-rounders

Root-zone and structure tools you can run right through: fish and kelp alongside your feed, humate for uptake, silica for cell-wall strength.

Why the fish matters: not all fish are equal →

Real growers, real rooms

Don’t take our word for it. Look.

Photos straight from growers running Bloom on top of their own feed. Tap through for the full stories and which bottles they used.

Grower photo from Brooklyn Buddah
Grower photo from Best Budz
Grower photo from House of Nuggs
Grower photo from Green Diamonds

Try it on your own plants

One bottle. Your setup. Your call.

Pick the week you want to win and run a fair side-by-side. Tap the button, answer a couple of quick questions in Nate’s Instagram DMs, and you’ll get a one-off thank-you code: 30% off any product, any size, for 7 days. In stock only, not available on back orders. All we ask is a look at your photos at the end.

Run a shop or a facility?

Stocking offers for stores and bulk sizes for commercial rooms.

Bloom Yellow Bottles

Biostimulants from Australia, 26 years in the US. Add-ons on top of your base feed, never a replacement for it.

Nathan “Nate” Chan · nathan@bloomyellowbottles.com · (970) 556-1678 · bloomyellowbottles.us

Images on this page are a mix of real photos and AI-generated illustrations, used to show how things work.