Stash Bloom pouch with dark powder in front and a small green plant in soil beside it.

Stash Bloom Premium All Natural Nutrient

4 lbs
$22.10
$22.10 $28.33
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Stash Bloom pouch with dark powder in front and a small green plant in soil beside it.
  • Stash Bloom pouch with dark powder in front and a small green plant in soil beside it.
  • Stash Bloom pouch with dark powder in front and a small green plant in soil beside it.
Stash Bloom Premium All Natural Nutrient

Stash Bloom Premium All Natural Nutrient

$22.10
$22.10 $28.33
SIZE4 lbs

All the phosphorus, potassium, and calcium flower wants, in one dry scoop.

Stash Bloom is an all-natural dry flowering fertilizer built to carry plants from the stretch through late bloom. It is a dry amendment rather than a liquid concentrate, so you work it into your media or top-dress it and let the soil biology feed it out over weeks. It is the flower half of the Stash program, picking up where Stash Base leaves off at the flip. Mix once, top-dress, water in.

All-Natural Dry Inputs Flower Nutrient + Amendment Soil, Living Soil, Coco Made in the USA
Built by growers, not a marketing department. Stash Nutrients was developed by the home growers behind the From the Stash podcast, Mr. Grow It, Pigeons 420, and Rob from CLTV, working with a professional nutrient chemist. Stash Bloom is the flowering formula from that line, made in the USA.
Free shipping over $49 30-day returns on all orders Serving growers since 2006
Why it's different

A liquid bloom schedule vs. Stash Bloom

Liquid Bloom Schedule
  • Separate bottles for a PK boost, cal-mag, and base bloom
  • Measure and mix fresh nutrient water almost every feeding
  • Bloom concentrates are mostly water, heavy to ship and quick to empty
  • Salt-based feed can build up and calls for a flush before harvest
  • Fast soluble spikes that swing with every reservoir change
  • Feeds the plant but leaves the soil no richer than you found it
Stash Bloom (Dry)
  • One dry amendment covers phosphorus, potassium, and calcium
  • Work it in or top-dress, then water as usual
  • A dry bag ships light and lasts across weeks of feeding
  • All-natural inputs feed the soil with no salt buildup or flush
  • Releases slowly as microbes break it down, for steadier availability
  • Leaves the media richer and ready to recharge for next round

How Stash Bloom feeds a flower

Flowering plants change their appetite. They pull back on nitrogen and start demanding more phosphorus for flower sites and energy transfer, and more potassium for sugar movement, water regulation, and firm, well-formed flower. Stash Bloom is weighted for exactly that, with a deliberately low nitrogen number so you are not pushing soft, leafy growth late in the cycle.

The calcium does structural work: it goes into cell walls, which helps flower hold its shape and stand up to handling. And because the inputs are dry and organic, they do not dump all at once. Soil microbes and moisture break them down over days and weeks, so availability stays steadier between feedings and you avoid the sharp swings a fully soluble bloom nutrient can cause.

Why growers run it

What Stash Bloom brings to flower

A complete dry bloom feed in one bagFlower + amendment

One all-natural amendment covers the big flower demands, so you are not juggling a separate PK booster, a cal-mag, and a base bloom. Work it into media or top-dress it through flower.

Heavy on calcium, where most bloom feeds are light9% Ca

A lot of bloom nutrients skimp on calcium. Stash Bloom carries a heavy dose of it to support firm, well-built flower and to head off the calcium deficiencies that tend to show up hard in late bloom.

All-natural inputs, no salt buildupNo flush

Every input is a natural mineral, marine, or plant meal, so it feeds the soil instead of loading it with salts. There is no flush protocol before harvest and no crusty runoff to manage.

Feeds for weeks, not one wateringWeeks per feed

Because it releases as your media breaks it down, a single application keeps feeding instead of flushing through in a day. You feed on a simple cadence rather than chasing a chart every watering.

Leaves your soil ready to reuseReusable media

Well-fed organic media does not turn into spent salt at the end of a run. After harvest you can recharge and replant the same soil, which lowers your cost per cycle.

Works in soil, coco, and next to your lineSoil and coco

Run it in soil, living soil, or coco, and use it on its own or alongside the base you already trust. It fits a hand-watered pot or a raised bed the same way.

Specs

Stash Bloom by the numbers

Guaranteed Analysis (N-P-K)
2.0-8.0-6.0
Calcium (Ca)
9.0%
Nitrogen
2.0% total, slow-release and largely water-insoluble
Type
Dry flowering fertilizer and soil amendment
Flower rate
2.5 to 4 tablespoons per gallon of media
Amendment rate
1 tablespoon per gallon mixed into fresh media
Sizes
4 lb, 15 lb, 42 lb
Application
Mix in, top dress, or side dress

What's in the bag

Derived from: sulfate of potash, calcium sulfate, fish bone meal, alfalfa meal, insect frass, and volcanic calcium metasilicates. Because it includes fish and insect inputs, Stash Bloom is not vegan, and it carries the earthy smell natural amendments tend to have.

How to feed with Stash Bloom

1

Amend or transition at the flip

As plants move into flower, work Stash Bloom into the top of your media, or mix it into fresh media at planting for a flowering bed. Water it in well.

2

Top-dress every 2 to 3 weeks

Broadcast 2.5 to 4 tablespoons per gallon of media, lightly work it into the surface, and water as normal. That covers most containers through flower.

3

Side-dress heavy feeders

For hungry plants or bigger pots, dig a shallow trench 3 to 6 inches out from the stem and 2 to 4 inches deep, add Stash Bloom, cover, and irrigate.

4

Taper toward the finish

Keep feeding through mid and late flower, then ease off as plants approach the end so they finish clean. Recharge the media for the next round.

What you get

What's in the bag, and how to buy it

In every bag of Stash Bloom
  • All-natural dry flowering fertilizer and soil amendment
  • A calcium-rich blend of mineral, marine, and plant inputs
  • Feeds by mixing in, top-dressing, or side-dressing
  • Suitable for soil, living soil, and coco
  • Dry format, no reservoir mixing required
Sizes and how to buy
  • 4 lb for a few plants or a small tent for a season
  • 15 lb for several beds or a medium indoor space
  • 42 lb for large gardens and commercial rooms
  • Full Stash program: pair with Stash Base for veg. Stash Blend, the weekly root and soil additive, is sold separately if you want the complete lineup.
Not sure which size fits? Tell us your plant count or bed size and we will help you land on the right bag. Call 716-217-0353 or email help@happyhydro.com.
Questions

Before you buy

For most soil and coco grows, no. Stash Bloom already carries a heavy phosphorus, potassium, and calcium load, which covers the jobs a PK boost and a cal-mag usually do in flower. If you run a specific base line that calls for extra cal-mag in very hard or very soft water, you can still add it.
It works in soil, living soil, and coco. In coco, lean on top-dressing and watering it in rather than a heavy up-front mix, since coco holds fewer nutrients than soil. It is not designed for deep water culture or other pure-hydro reservoirs, because it is a dry amendment that releases as it breaks down.
In most containers, top-dress every two to three weeks through flower. In large pots and raised beds of about 15 gallons or more, once a month is usually enough. Read the plants: deep green and vigorous means you are on track, pale and slow means feed sooner.
It is dosed per gallon of media, so your total depends on pot count and bed size. As a rough field guide, figure about half a cup per 5-gallon pot, or about half a cup per square foot in a bed, so a 4x4 bed of 16 square feet takes roughly 8 cups per feeding. For an exact number for your setup, call us and we will work it out with you.
Every input is natural, and it is well suited to living-soil and no-till beds, where it top-dresses cleanly and feeds the soil life. We do not claim a specific certification on this page, so if you need a certified input for a particular program, call us first and we will confirm the current label with you before you order.
It has the earthy, mealy smell natural dry amendments carry, stronger right after you water it in and fading as it settles. Working it into the surface and watering it in, rather than leaving it loose on top, keeps the smell down and keeps it from drawing fungus gnats or other surface pests.
If you receive a defective or damaged unit, email us a photo at help@happyhydro.com and we'll take care of you. For change-of-mind returns, we accept returns within 30 days for most items in new, resalable condition. If you're not sure whether this product is right for your setup, call us first at 716-217-0353. We'd rather answer your questions before you order.
Happy Hydro has been selling growing equipment since 2006. We carry Stash Nutrients because the formulas work and the growers who run them come back happy. Have questions before you order? Call 716-217-0353 or email help@happyhydro.com. We're easy to reach and happy to help!

Questions? We're easy to reach. Happy Hydro has been serving growers since 2006. Call or email us before you order, after you order, or any time something comes up. When you're happy, we're happy.

716-217-0353 help@happyhydro.com

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