Stash Nutrients and Bloom
Stash keeps it to three steps: two dry amendments in the soil and one weekly drench. Here’s where Bloom’s weekly bottles sit around that.
Last checked 5 November 2026 · Public information only
This Fit Report is a summary of publicly available information about Stash Nutrients and its products, taken from their own website, labels and published material as of 5 November 2026. We’ve linked each source so you can check it yourself. Rates are as printed on each company’s own pages; we don’t show prices. It isn’t affiliated with, endorsed by or approved by Stash Nutrients, and product names belong to their owners. Products, rates and claims change, so please confirm current details with the manufacturer before making any decision. Spotted something out of date? Email nathan@bloomyellowbottles.com and we’ll correct it.
Three steps in the soil, and the weeks either side.
Stash Base feeds veg, Stash Bloom goes in from late veg to mid flower, and Stash Blend runs weekly up to weeks 6 to 8 of bloom. Their FAQ says the line isn’t generally for DWC. Bloom’s weekly bottles pick up the flip, the finish and the flush, and run in soil, coco or hydro.
- Stays as is: Stash Base and Stash Bloom, top dressed or mixed in as their FAQ sets out.
- Both have one: seaweed, humic acid and silicon, all inside Stash Blend.
- Not on their list: stage additives, fish, cal-mag, foliar sprays and a hydro program.
Stash Nutrients and Bloom in short
Stash Base, Stash Bloom and the microbes in Stash Blend.
Stash Blend’s kelp, humic and silicon sit near Seaweed, Humate and Silica.
Pre, Ultra, Ooze and Final, Seafuel, Cal-Mag, SWTNR, Sea Minerals, foliars and a hydro program.
Where each bottle sits in the cycle
Stash Nutrients’ timing in grey, Bloom’s in yellow, across shared stages of the grow.
| Stage | Root | Veg | Flip | 3–4 | 5+ | Last 2 | Flush |
|---|---|---|---|---|---|---|---|
| Stash Nutrients, per their pages | |||||||
| Stash Base | |||||||
| Stash Bloom | |||||||
| Stash Blend (weekly) | |||||||
| Bloom, per Bloom’s weekly feed charts | |||||||
| Roots | |||||||
| Pre | |||||||
| Ultra | |||||||
| Phat (weeks 3 and 4) | |||||||
| Ooze (wk 5 to flush) | |||||||
| Final (with Ooze) | |||||||
| Seafuel | |||||||
| Seaweed · Humate · Sea Minerals | |||||||
| SWTNR | |||||||
| Cal-Mag | |||||||
| Groigen (foliar, as needed) | |||||||
| Florigen (foliar, as needed) | |||||||
| PK (as needed) | |||||||
| Silica | |||||||
Timing comes from the Stash FAQ. Stash Base is a veg amendment and lists flowering as N/A. Stash Bloom goes in from late veg through mid flower. Blend runs weekly from seedling up to weeks 6–8 of bloom, drawn pale at the end (our read). Bloom’s bars follow its weekly feed charts; pale Bloom bars are as-needed bottles.
Why each one fits
What the Bloom product does, the research behind that kind of input, and where it sits in a program that already runs.
The last weeks of flower
What it does. Ultra at the flip, flower weeks 1 and 2. Ooze from week 5 through the final flush, and Final for the last two weeks, running together at the end. These are timing tools, so there’s no study cited for them here.
How it stacks. Stash Bloom goes in to mid flower and Blend runs to weeks 6–8 of bloom. Ooze and Final go into the water for the weeks after that, with no dry top dress needed (our read).
Blend in one jug, or Seaweed and Humate on their own
What it does. Seaweed is southern bull kelp at 1 ml/L weekly, seedling through flush. Humate is 10% humic acid at 2.5 ml/L weekly, seedling through flush.
Reviews link seaweed extracts to growth and stress tolerance across many crops, and humic substances to root growth and nutrient uptake. Neither tests these bottles or Stash Blend.
Ali et al. (2021), Plants (review) · Canellas et al. (2015), Scientia Horticulturae (review)
How it stacks. Blend and these two do a similar job. Run one, or split the room and test them with Base and Bloom held the same (our read).
Cal-Mag and Seafuel in the water
What it does. Cal-Mag is calcium and magnesium with iron and zinc at 1 ml/L weekly, grow and bloom. Seafuel is tuna and kelp at 1 ml/L weekly, clone through late flower.
Fish inputs sit in the protein hydrolysate family. A 2023 review links that family to nutrient uptake, mostly under stress, and flags plenty still unknown. It doesn’t test Seafuel.
How it stacks. Stash Base and Bloom already carry calcium. Our read: in soil, add Cal-Mag only if new growth asks for it; in coco or hydro it has a clearer job.
Foliar feeds for veg and the flip
What it does. Groigen for seedling through veg, Florigen for the stretch to early bloom, stopping once buds set. Both at 20 ml/L, lights off, every few days as needed.
A mini review says leaf uptake of nutrients works but varies, and the way they cross the leaf surface isn’t fully understood.
How it stacks. These stay off the soil, so they don’t touch the Stash top dress or the weekly Blend drench (our read).
Where the programs complement each other
Stash to mid flower, Bloom to the flush
Stash Bloom stops at mid flower and Blend runs to weeks 6–8. Ooze and Final take the last weeks in the water, with Ultra covering the flip.
A program for the hydro side of the room
The Stash FAQ says the line isn’t generally for DWC. Bloom’s bases and weekly bottles run in soil, coco and hydro, so a grower with both setups has a liquid option (our read).
Blend and Seaweed with Humate, tested fairly
Both put kelp and humic in the weekly water. Split the room with Base and Bloom held the same and see which suits it.
Their line, Bloom’s fit at a glance
Matched on job, not NPK. Stash prints tablespoons per gallon of soil and teaspoons per gallon of water; Bloom prints ml per litre on a weekly chart. Tap a tag to filter.
Mixed in or top dressed in veg. Bloom’s liquids go in the water on top of it.
Top dressed late veg to mid flower. Bloom’s flower additives run in the weekly water alongside it.
Both put kelp and humic in the weekly water. Blend is all in one; Bloom’s are separate bottles.
Both carry silicon. Blend doesn’t state an amount; Bloom’s Silica is labelled 0-0-4 potassium silicate.
Bloom has no microbial inoculant, so this part stays.
Pre in mid veg, Ultra for flower weeks 1 and 2.
Ooze from week 5 to the flush, Final for the last two weeks alongside it.
Tuna and kelp, clone through late flower, tapering at the flush.
Calcium and magnesium with iron and zinc, grow and bloom, stopping at the final flush.
Their FAQ calls Blend a soil drench. These are made for the leaf, every few days as needed.
For a grower who also runs hydro, Bloom’s bases and additives work in recirculating or run-to-waste systems.
Carbohydrates and potassium from veg week 2, and trace minerals from sea water, veg to bloom.
Put it side by side
Where both ranges have a product for the same job, the fair answer is a test in your own room. Here’s what to watch and how to keep it fair.
Keeping it fair
- Same plants. Clones off the same mother, same cultivar, same age.
- Same room. Same light, climate, media, pot size and watering.
- Same base. Keep the base feed and EC the same on both sides.
- One change. Change only the product being tested, and write down what you see each week.
Already covered
- Veg feed. Stash Base, a dry amendment mixed in or top dressed.
- Flower feed. Stash Bloom, top dressed late veg to mid flower.
- Weekly drench. Stash Blend with kelp, humic, silicon and microbes.
- Simple schedule. Three products, no multi-bottle chart.
Stays exactly as is
- Stash Base and Stash Bloom. Bloom has no dry amendments.
- The microbes in Blend. Bloom has no inoculant.
- Their top-dress rhythm. Bloom goes in the water, not the soil surface.
- Stash Blend. If it’s working in your room, keep it, or test Bloom’s next to it.
Background, science and sources
Who Stash Nutrients are
Stash Nutrients sells an all-natural fertilizer line for the USA and Canada, tagged “Increase Your Stash”. Their homepage says it was designed by growers at From the Stash and the team at Growershouse, and the buy and wholesale links go to growershouse.com. The pages we read don’t name a parent company or address.
The range is three products: Stash Base (dry, veg), Stash Bloom (dry, flower) and Stash Blend (a 2-1-5 liquid drench, weekly). Their FAQ covers soil and soilless media, says the line isn’t generally for DWC, and says Blend can run with synthetic base nutrients. Their site features a Michigan grow-off win with Stash Blend.
Sources: Home · Help center
What each company brings
Stash Nutrients: A simple three-step organic line: two dry amendments for veg and flower, and a weekly liquid with kelp, humic acid, silicon and microbes, sold through Growershouse in the USA and Canada.
Bloom: one additive for each stage of the crop, seaweed, humic and sea mineral inputs, foliar sprays, and weekly feed charts for soil, coco and hydro. Rates and timing are on every product page.
Cropping Solutions, the other brand under Agricultural Organics, isn’t part of this report.
Dose basis: how each side counts
Stash prints dry rates per gallon of soil (Stash Base 1–3 Tbsp, Stash Bloom ½ cup per 5-gallon pot) and Blend at ½–1 tsp per gallon of water, weekly. A US teaspoon is about 4.93 ml, so Blend is about 0.65–1.3 ml/L. Bloom prints ml per litre on a weekly chart.
Dry amendments release slowly, so there’s no fair ml-for-ml comparison with Bloom’s liquids. Blend and Bloom’s bottles are both weekly, but the analyses differ.
Mix calculator
Rates as printed on each company’s page (1 US gallon is 3.785 L). Bloom’s rates are per litre of nutrient solution, dosed weekly per its feed charts. Pick a product and your tank size.
Silicon and plant stressWell supported
Luyckx and colleagues (2017) pull together work showing silicon helps plants handle stress, from salt and drought to pests and disease.
Why it matters here: Stash Blend lists soluble silicon and Bloom has Silica. The paper is general plant science and doesn’t compare products.
Last checked 5 November 2026. Public information only. Not affiliated with, endorsed by or approved by Stash Nutrients; product names belong to their owners. Please confirm current details with the manufacturer. Corrections: nathan@bloomyellowbottles.com. All Fit Reports