Down To Earth and Bloom
Down To Earth is the dry stuff that goes in the soil. Bloom is the weekly liquid that goes in the can. Here’s where the two ranges meet and where they don’t.
Last checked 5 November 2026 · Public information only
This Fit Report is a summary of publicly available information about Down To Earth 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 Down To Earth, 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 Spotted something out of date?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.
Mix it into the soil, then water Bloom in on top.
Down To Earth is mostly dry: blended meals, single ingredients, minerals and humic granules you work into the bed or the pot, plus a handful of liquids and microbial inoculants. Bloom has no dry products at all. Its bottles go into the water you’re already putting on that soil, week by week.
- Stays as is: the dry blends and meals, Langbeinite, gypsum, lime, Azomite and the Root Zone inoculants.
- Both have one: a fish and kelp liquid, a liquid calcium, kelp, humic acid and a liquid flower feed.
- Not on their list: silica, a carbohydrate additive, stage additives and foliar sprays.
Their line, Bloom’s fit at a glance
Matched on job, not NPK. Down To Earth prints rates per hole, per gallon of soil, per 100 sq ft and per gallon of water; Bloom prints ml per litre on a weekly feed chart. Tap a tag to filter.
Keep the dry blend in the soil. Bloom’s liquids go in with the water.
These are build-your-own soil inputs. Bloom doesn’t make meals or guanos.
Mined minerals for the soil mix. Nothing in Bloom’s range does this job.
Bloom doesn’t make an inoculant, so these stay at planting.
A planting-day blend. Bloom’s weekly bottles start after it’s in.
Both are fish and kelp in a bottle. Theirs is Atlantic kelp with an NPK; Seafuel is tuna and southern bull kelp. Pick one, or test them.
Both bring kelp. Theirs is a dry meal in the soil; Seaweed is a liquid extract in the weekly water. They can sit together (our read).
Both are humic acid. Theirs goes in the soil mix; Humate is 10% humic acid in liquid form. Plan the total if you run both.
Both supply calcium. Theirs is calcium only; Cal-Mag adds magnesium, iron and zinc. Pick one.
Both feed the flowering plant. Liquid Bloom is an organic liquid feed; Bloom’s Flower A+B is a two-part base with PK as needed on top.
Potassium silicate, labelled 0-0-4, veg through early flower.
Carbohydrates and potassium from veg week 2, plus trace minerals from sea water.
Their timing runs by season. Bloom’s runs by stage: mid veg, the flip, mid flower, late flower and the finish.
Foliar sprays for veg and the flip, every few days as needed.
Already covered
- Dry feeding. All Purpose, Vegetable Garden, Rose & Flower, Bio-Fish and more blends.
- Single ingredients. Meals, guanos, kelp, humic granules and Langbeinite.
- Minerals. Gypsum, lime, dolomite, sulfur and Azomite.
- Soil biology. Bio-Live, Root Zone and Root Growth Enhancer at planting.
Stays exactly as is
- The dry blends and meals. Bloom has no dry products.
- Minerals and Langbeinite. Nothing in Bloom’s range does this job.
- Root Zone and Bio-Live. Bloom doesn’t make an inoculant.
- Their liquids. If Liquid Fish & Kelp or Liquid Calcium are working in your room, keep them, or test Bloom’s next to them.
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.
Their calendar is the season. Bloom’s is the crop.
What it does. Pre in mid veg (weeks 2–3), Ultra at the flip (flower weeks 1–2), Phat in flower weeks 3 and 4, Ooze from week 5 through the final flush, and Final for the last two weeks alongside Ooze. 1–2.5 ml/L, weekly. These are timing tools, so there’s no study cited for them here.
How it stacks. Down To Earth’s pages time things by planting and the growing season: mix in, then side-dress monthly. Bloom’s stage bottles go into the water in those same months without touching the dry feed (our read).
Silica, carbs and trace minerals
What it does. Silica is potassium silicate at 0.33 ml/L weekly, added first. SWTNR is carbohydrates and potassium at 1 ml/L weekly from veg week 2 to the flush. Sea Minerals is trace minerals from sea water at 0.13 ml/L weekly.
How it stacks. Azomite and the rock dusts give the soil a slow mineral base. Sea Minerals is a small liquid dose in the water, so it adds to that rather than standing in for it (our read).
Silica · SWTNR · Sea Minerals
Dry in the bed, liquid in the can
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 more lateral roots and changes tied to nutrient uptake. None of it tests these products or cannabis.
Ali et al. (2021), Plants (review) · Canellas et al. (2015), Scientia Horticulturae (review)
How it stacks. Kelp Meal and Granular Humic Acids are dry and go into the mix monthly or every other month. Seaweed and Humate are liquids that go in weekly. A grower can run the meal in the soil and the liquid in the water; just plan the humic total (our read).
Foliar sprays for veg and the flip
What it does. Groigen for seedling through veg and Florigen for the stretch to early bloom, 20 ml/L as a lights-off spray, every few days as needed.
How it stacks. Down To Earth’s Liquid Calcium and Fish Powder pages list foliar use. Our read: don’t stack sprays on the same day, and test a few leaves first.
Where the programs complement each other
Dry in the mix, Bloom in the can
Bloom has no dry products and Down To Earth’s range is mostly dry. A grower can build the soil with their blends and minerals, then run Bloom’s weekly bottles through it (our read).
Stage timing over a seasonal feed
Their pages time feeding by planting and the season. Pre, Ultra, Phat, Ooze and Final add stage-by-stage timing at 1–2.5 ml/L weekly, plus Silica and SWTNR, which aren’t on their list.
Test the liquids side by side
Liquid Fish & Kelp, Liquid Calcium and Liquid Bloom each sit near a Bloom bottle. Those are the fair spots for a same-room test before a grower settles on one.
Where each bottle sits in the cycle
Down To Earth’s timing in grey, Bloom’s in yellow, across shared stages of the grow.
| Stage | Root | Veg | Flip | 3–4 | 5+ | Last 2 | Flush |
|---|---|---|---|---|---|---|---|
| Down To Earth, per their pages | |||||||
| Bio-Live and Root Zone (planting) | |||||||
| Vegetable Garden 4-4-4 | |||||||
| Rose & Flower Mix 4-8-4 | |||||||
| Kelp Meal (monthly) | |||||||
| Granular Humic Acids | |||||||
| Liquid Fish & Kelp | |||||||
| Liquid Bloom (Down To Earth) | |||||||
| 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 | |||||||
Down To Earth’s pages time products by planting and the growing season, not by crop stage, so most of their bars are pale: these are our read of where each lands in an indoor run. Mix-in and planting-hole rates sit at the start; side-dressing (monthly, or twice a month for Rose & Flower) and the twice-monthly liquids carry on through the season. Granular Humic Acids is every other month in containers. Bloom’s bars follow its weekly feed charts; pale Bloom bars are as-needed bottles.
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.
Background, science and sources
Who Down To Earth are
Down To Earth Distributors, Inc. makes Down To Earth fertilizers in Eugene, Oregon. Their site says they’ve been formulating for more than 30 years, and many products carry the OMRI logo. The pages we read don’t name a parent company.
The range is dry blended fertilizers, single-ingredient meals and guanos, minerals, wettable powders, a few liquids (fish and kelp, Liquid Bloom, calcium, bone meal, all purpose), mycorrhizal inoculants and potting media. They sell wholesale to garden centers and landscape suppliers, with a where-to-buy list for retail, and say they’re used by home gardeners, commercial growers and nurseries.
Sources: Brand site · About · Wholesale
What each company brings
Down To Earth: Dry blends, single-ingredient meals and guanos, mined minerals, humic granules, a few organic liquids, mycorrhizal inoculants and potting media, most of them OMRI Listed, with rates for beds, containers and acreage.
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
Down To Earth prints dry rates per planting hole, per gallon of soil, per cubic yard or per 100 sq ft, and liquid rates per gallon of water. Bloom prints ml per litre on a weekly feed chart. At 3.785 L to the gallon, Liquid Fish & Kelp’s 1–2 oz per gallon for containers is about 7.8–15.6 ml/L, and Liquid Calcium’s 1 tsp per gallon for weekly watering is about 1.3 ml/L.
Their liquids are used twice monthly, or with each regular watering in containers, while Bloom’s sit on a weekly chart. The analyses differ too, so bottle volume alone isn’t a like-for-like dose.
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.
Fish protein hydrolysatesEmerging
Malécange and colleagues (2023) review protein hydrolysates as biostimulants, including their links to nutrient uptake and assimilation, and say more work is needed under stress.
Why it matters here: Down To Earth’s Liquid Fish & Kelp, Liquid Bloom and Fish Powder are fish protein hydrolysate products, and Bloom’s Seafuel is a tuna and kelp tonic. The review is general and doesn’t compare products.
Sources, all viewed 5 November 2026
Down To Earth: Brand site · About · Wholesale · Bio-Live 5-4-2 · Rose & Flower Mix 4-8-4 · Vegetable Garden 4-4-4 · Kelp Meal · Granular Humic Acids · Langbeinite 0-0-22 · Bat Guano 7-3-1 · Liquid Fish & Kelp · Liquid Bloom (Down To Earth) · Liquid Calcium 5.0% · Fish Powder 12-1-1 · Soluble Root Zone
Bloom: Roots · Pre · Ultra · Phat · Ooze · Final · Seafuel · Seaweed · SWTNR · Humate · Cal-Mag · Groigen · Florigen · Sea Minerals · PK · Euro · Grow · Flower · Silica · OrganiShield
Last checked 5 November 2026. Public information only. Not affiliated with, endorsed by or approved by Down To Earth; product names belong to their owners. Please confirm current details with the manufacturer. Corrections: nathan@bloomyellowbottles.com. All Fit Reports