FoxFarm Big Bloom Fertilizer 0-0.5-0.7 | 16oz - Concentrate - OMRI Listed - (Case of 12)

Bat Guano & Earthworm Castings Bloom Feed, 16oz Case of 12

A flowering or fruiting plant often needs more than macronutrients alone to push multiple bloom sites and healthy seed formation, and organic growers need that boost without stepping outside a certified program. FoxFarm Big Bloom 0-0.5-0.7 blends bat guano and earthworm castings into a low-rate liquid plant food, delivering trace nutrients and organic matter that support blooming and seed formation while carrying both OMRI Listed and CDFA Registered status.

This 16oz case-of-12 format is built for retailers and growers who want a full case of Big Bloom on hand rather than restocking single bottles throughout a season.

Key Features & Benefits

• 0-0.5-0.7 NPK — a low-rate formula designed to support multiple blooms and seed formation rather than drive vegetative bulk.
• Bat Guano & Earthworm Castings — organic ingredients that supply trace nutrients and organic matter alongside the NPK base.
• OMRI Listed & CDFA Registered — reviewed and eligible for certified organic growing programs.
• Case of 12 — 16oz bottles packed twelve to a case, suited to retail shelves or growers who don't want to reorder mid-season.
• Broad Compatibility — labeled for all fruiting and flowering plants across soil, soilless, and hydroponic systems.

Who Should Use Big Bloom 0-0.5-0.7

Organic and conventional growers who want an OMRI Listed, guano-and-castings-based bloom supplement for fruiting and flowering plants are the fit for Big Bloom, whether they're stocking a retail shelf or feeding a full-season grow.

About FoxFarm Big Bloom

Big Bloom is one of FoxFarm's original three soil-formula liquid fertilizers, produced by the Humboldt County, California, company since the early 1980s and built around organic ingredients like bat guano and earthworm castings rather than synthetic bloom boosters.

Frequently Asked Questions

Is FoxFarm Big Bloom certified for organic use?

Yes, it's both OMRI Listed and a Registered CDFA Organic Input Material, so it's eligible for certified organic programs on either standard. Growers can use it without stepping outside a certified organic program.

What do the bat guano and earthworm castings contribute?

Those two organic ingredients supply trace nutrients and organic matter that complement the low 0-0.5-0.7 NPK base, rather than functioning as the primary nutrient source themselves. That combination is part of what distinguishes Big Bloom from a straight mineral-salt bloom feed.

Can Big Bloom be used throughout the whole growing cycle?

Yes, it's labeled for use from seedling through harvest, though it's particularly associated with the bloom and fruiting phase. Growers typically pair it with a vegetative and a bloom-specific formula for full-cycle coverage.

How many bottles are in one case of Big Bloom?

This case contains twelve 16oz bottles, a format aimed at retailers and growers who want a season's supply on hand at once. That's enough product to avoid reordering mid-season for most container gardens.

What sizes does FoxFarm sell Big Bloom in?

Big Bloom ships as a liquid concentrate in sizes ranging from 16oz up through multi-gallon containers, so growers can match container size to how much they use per cycle. This 16oz case-of-12 format is aimed at retail and season-long restocking.