Microbe Life Photosynthesis Plus-O, 2.5 gal (OR)

Oregon-Compliant Photosynthetic Bacteria Formula, 2.5gal

Oregon's compliance requirements for biological products favor an active bacterial approach rather than a stored dormant consortium, which shapes how a regionally compliant product needs to be built. Microbe Life Photosynthesis Plus-O is an Oregon-compliant formulation featuring photosynthetic bacteria that fix nitrogen and solubilize soil nutrients, making them more readily available to plants in both soil and soilless substrates.

This 2.5gal size fits a mid-size Oregon operation running a regular feeding schedule.

Key Features & Benefits

• Nitrogen-Fixing Photosynthetic Bacteria — fix nitrogen and solubilize soil nutrients for greater plant availability.
• Foliar & Root Zone Activity — enhances plant nutrient functions at both the foliar level and the root zone.
• Works in Soil & Soilless Substrates — formulated for use across both soil and soilless growing systems.
• Layers onto a Base Feeding Program — fits into an existing Oregon-compliant nutrient regimen without reformulating it.

Who Should Use Photosynthesis Plus-O

Oregon growers who want a compliant photosynthetic bacteria formula to support nutrient availability at the foliar level and root zone.

About Photosynthesis Plus-O

Ecological Laboratories, founded in 1976 and based in Cape Coral, Florida, develops MICROBE-LIFT microbial formulations; Microbe Life Hydroponics is the company's brand extension into gardening and hydroponic markets. Plus-O is the company's Oregon-compliant formulation within the Photosynthesis Plus culture consortium line.

Frequently Asked Questions

What does Photosynthesis Plus-O contain?

It contains photosynthetic bacteria formulated to fix nitrogen and solubilize soil nutrients. That mechanism is what makes nutrients already present in the growing medium more available to the plant.

How does it support plant growth?

It's formulated to support nutrient uptake and distribution at both the foliar level and the root zone, in soil or soilless substrates. Nitrogen fixation and nutrient solubilization work together rather than as separate mechanisms.

Why is this an Oregon-specific formulation?

This listing is formulated to meet Oregon's regulatory requirements for this product category. Growers outside Oregon can use the general Photosynthesis Plus formula instead.

Does this work in soil as well as hydroponic media?

Yes, it's formulated for use in both soil and soilless substrates. The nitrogen-fixing bacteria function the same way regardless of which growing medium surrounds the root zone.

Which size should I choose?

Home growers treating a smaller number of plants usually start with the 1qt size, while 1gal and 2.5gal cover mid-size operations and 5gal is built for commercial-scale use. Oregon growers running a full program typically size up once they've confirmed a dose rate on a smaller container first.