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Organic All-Purpose Liquid Plant Food - 32oz

$24.99$29.99
Size
In stock
Free shipping on orders over $50
OMRI Listed
Kid & Pet Safe
Details

32oz bottle — for the home gardener. Makes up to 32 gallons of feeding solution.

Liquid nutrition for everything you grow — vegetables, herbs, flowers, trees, and shrubs. Broad-spectrum organic NPK plus the trace minerals and living microbiology your plants need to actually thrive, not just survive.

Most plant food is just NPK — the macronutrients plants need to grow, and nothing else. Our All-Purpose Liquid Plant Food is built around what plants actually want: a broad spectrum of nitrogen, phosphorus, and potassium, plus calcium, magnesium, silica, and the trace minerals that make those macros work. Made from real organic inputs — fish manure, fish emulsion, sea kelp, volcanic ash, mycorrhizal fungi — and finished with peppermint oil for a clean, garden-friendly scent. OMRI Listed, CDFA approved, safe around children and pets when used as directed.

Results

Visibly larger plants. Denser foliage. Vegetables and herbs that taste and smell the way they should. Stronger transplants. A more resilient garden through heat, drought, and disease pressure.

Ingredients

Fish manure, fish emulsion, sea kelp, volcanic ash, mycorrhizal fungi, peppermint oil. Broad-spectrum NPK plus calcium, magnesium, silica, and trace minerals. No synthetic additives.

How to use

Vegetables & herbs: 1 oz per gallon of water, every 1–2 weeks during the growing season. Flowers & ornamentals: 1 oz per gallon, every 2 weeks. Trees & shrubs: 2 oz per gallon, monthly during active growth. New plantings: drench at planting and again 7–10 days later.

Frequently asked

What's the NPK?

Approximately 1-1-0.45 — modest by synthetic-fertilizer standards, much higher in usable nutrition because of the calcium, magnesium, silica, and microbial activity that unlock what's already in your soil.

Can I use it on edibles right up to harvest?

Yes. OMRI Listed for organic use with no required waiting period. We still recommend rinsing produce before eating.

How do I mix it?

1 oz per gallon of water for most uses; 2 oz per gallon for trees and shrubs. Shake the bottle before measuring — natural inputs settle.

Can I use it as a foliar spray?

Yes, at the 1 oz per gallon ratio. For a ready-to-use foliar option, our Broad-Spectrum Plant Spray comes pre-mixed in a spray bottle.

Is it safe around pets and children?

Yes, when used as directed. No synthetic chemicals; no waiting period after application.

How long does an open bottle last?

Roughly 12 months sealed, 6 months once opened, stored cool and away from sunlight. Some natural separation is normal — shake before each use.

Shipping & returns

Free shipping on orders over $50. Most orders ship within 1-2 business days. 30-day satisfaction guarantee — return for a full refund if you're not happy.

Works immediately
No charging period
Permanent improvement
Apply once, forever
Billions of microbes
300+ beneficial species
In USDA ARS field trials
Multi-year soil study

We take pride in producing the highest quality, certified organic products right here in the United States. Our entire production process from sourcing ingredients to manufacturing is conducted within the USA, ensuring adherence to the highest quality and safety standards.

Organic Plant Biosciences products are approved for organic use by the Organic Materials Review Institute (OMRI), ensuring they do not contain harmful chemicals.

See it in action

Organic All-Purpose Liquid Plant Food in motion.

Application guide

How to use Organic All-Purpose Liquid Plant Food

Three simple steps — no expertise required.

1
Measure

Open the bottle or bag and follow the dilution rate on the label. Liquids: 1–2 oz per gallon of water. Biochar: one cubic foot per 64oz bag.

2
Apply

Drench the root zone, mist the leaves, or work into soil — depending on the product. Water in lightly when applying to soil.

3
Repeat

Most products: every 2–4 weeks during active growth. Reduce or skip during dormancy. Biochar is a one-time application — permanent.

The 3-in-1 advantage

Plants need
what you need.

Food. Vitamins. Probiotics. Most products give you one. Ours gives you all three.

Food
Macronutrients
N · P · K

Nitrogen, phosphorus, and potassium. The fuel that makes things grow. You can survive on food alone for a while — but you won’t thrive.

Vitamins
Micronutrients
Trace minerals

Calcium, magnesium, iron, zinc, sulfur. The supporting cast that makes your food actually work. Without these, even the best diet falls flat.

What makes us different
Probiotics
Probiotics
Living microbiome

Billions of beneficial microbes that live alongside roots — same principle as gut bacteria for humans. They unlock nutrients, fight disease, and keep the whole system humming.

Brand
Food
Vitamins
Probiotics
Miracle-Gro
Fox Farm
Partial
Espoma
Partial
Dr. Earth
Listed*
Neptune’s Harvest
Some
Compost & raw biochar
Some
Some
Organic Plant Biosciences

*Dr. Earth lists mycorrhizae in their ingredient panel — viability of those microbes by the time they reach soil is the open question. Our biochar pre-loads live, active microbes the moment it hits the ground.

The science inside

300+ species.
Billions of each.
All in one bag.

Our biochar is studied in a multi-year USDA ARS field trial. Initial results suggest the curated microbial community we pre-load it with contains rare plant growth-promoting species not present in raw or uncharged biochar.

Nitrospira
Bacillus subtilis
Hassallia
Rhodobacter
Pseudomonas
Streptomyces
Arenimonas
Lentzea
Burkholderia
Good to know

Product FAQ

Is it safe to use around kids and pets?
Yes — our products are made with organic inputs and are non-toxic to people and pets when used as directed.
Is it OMRI listed and organic?
Yes. Our line is OMRI listed and approved for certified organic growing.
Where are your products made?
Proudly made in the USA to strict quality and safety standards.
Can I use it alongside my current fertilizer?
Yes. Our living-soil products build the biology that helps any feeding program work better — they complement it, not replace it.
What if I am not happy with it?
Every order is backed by a 30-day satisfaction guarantee, with free shipping on orders over $50.
What growers say