Plant Success Orca Liquid Mycorrhizae
Best liquid inoculant for gardeners seeking stronger root and plant health.
Orca® is a highly concentrated liquid inoculant featuring a powerful blend of mycorrhizae and beneficial bacteria. This all-in-one product combines four potent endo mycorrhizal species with eleven aggressive bacteria strains to create a robust microbial system for your plants. Designed for ease of use, Orca enhances nutrient and water uptake, promoting healthier and more vigorous growth. It's an effective solution for treating existing plants, landscapes, and gardens, suitable for a wide range of applications where beneficial microbial support is desired.
$59.99
Owner Satisfaction
4.6
/ 5
Category Rank
1792
/ 4445
#1792 in Fertilizers
Price vs Category Average
-3%
Below average
Endomycorrhiza
19
/ Glomus intraradices – props per mL
Who it's for
- Gardeners seeking maximum nutrient uptake and root health
- Hydroponic growers needing easy, versatile application methods
- Budget-conscious shoppers wanting long-lasting, reliable biological products
Who should skip it
- Value-focused growers preferring affordable, single-strain alternatives
- Gardeners lacking climate-controlled storage space
- Users relying heavily on synthetic fertilizers or harsh fungicides
Performance breakdown
Microbial Diversity
Fifteen distinct beneficial strains provide a comprehensive biological foundation for roots.
Application Versatility
Liquid formula integrates seamlessly into soil, coco, and hydroponic feeding schedules.
Concentration Potency
High-density microbial counts ensure effective colonization even in small doses.
Ease of Use
Simple liquid dilution removes the guesswork from traditional powder-based inoculants.
Nutrient Uptake Efficiency
Active mycorrhizal networks significantly expand the root zone's absorption capacity.
Growth Stimulation
Promotes vigorous development across diverse plant types from seedlings to trees.
Key Specs
Endomycorrhiza
Glomus intraradices – 19 props per mL
Endomycorrhiza
Glomus mosseae – 19 props per mL
Endomycorrhiza
Glomus etunicatum – 19 props per mL
Endomycorrhiza
Glomus aggregatum – 19 props per mL
Bacteria
Bacillus subtilis – 250,000 CFU’s per mL
Bacteria
Bacillus licheniformis – 250,000 CFU’s per mL
Bacteria
Bacillus megaterium – 250,000 CFU’s per mL
Bacteria
Bacillus pumilus – 250,000 CFU’s per mL
Features
- Enhances water and nutrient uptake
- Diverse mix of mycorrhizae and bacteria
- Suitable for seeds, cuttings, soil, coco, hydro
- Easy application via watering or irrigation
- Promotes healthier, vigorous plant growth
- Concentrated formula for effectiveness
- Combines 4 endo mycorrhizal species
- Includes 11 aggressive bacteria strains
What customers say
The sentiment is overwhelmingly positive, centering on the product's exceptional effectiveness and user friendly application. Growers consistently observe rapid, robust root development and enhanced plant vitality across various growing environments. The liquid format simplifies dosing and integration into existing feeding schedules, making it highly convenient. Consumers view Orca as a reliable, high quality supplement that delivers tangible results, justifying its premium positioning in the market.
Know before you buy
Yes, Orca is fully compatible with hydroponic setups. Its liquid formula is designed to be easily integrated into water reservoirs or irrigation systems without clogging lines.
As a liquid concentrate, Orca offers immediate availability and easier application for established plants. While granular forms are often best for mixing into soil at the time of transplanting, the liquid format allows you to treat existing landscapes, containers, and gardens through a simple soil drench.
Orca is highly versatile and safe for a wide range of plants, including vegetables, trees, shrubs, and houseplants. Because it contains endomycorrhizal species, it is particularly effective for most common garden and indoor plants that form symbiotic relationships with these fungi.
Because it is a concentrated microbial inoculant, it is best used during initial planting, transplanting, or as a periodic boost during the growing season. You can apply it via watering or irrigation whenever you want to support root health and nutrient uptake.
While Orca is organic, it can be used alongside most fertilizer programs. However, avoid using heavy fungicides or high-phosphorus chemical fertilizers immediately after application, as these can inhibit the colonization of the beneficial bacteria and fungi.
Like all biological products, Orca contains living organisms. To maintain the viability of the 11 bacteria strains and 4 mycorrhizal species, store the bottle in a cool, dark place away from direct sunlight and extreme temperature fluctuations.
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$60