The Organic Biological Treatment for Home and Garden
Organic Biological Technology
Ultra® is the organic biological treatment designed specifically to support healthy plants and healthy soil in home gardens and landscapes. OMRI Listed and free from synthetic chemicals, Ultra® works with nature to improve plant performance by supporting the biological processes that drive growth both in the soil and within the plant.
Whether you are growing fruits and vegetables, tending flower beds, caring for trees and shrubs, or maintaining landscaped areas, Ultra® provides a clean, organic way to support stronger growth, improved plant vitality, and long-term soil health.
Ultra® can be applied to the soil and used as a foliar spray, giving home gardeners a flexible, organic solution that supports plants above and below the surface throughout the growing season.
Certified organic / OMRI
Certified organic and OMRI Listed, so you can apply it to your soil and plants with confidence.
Supports Living Soil
Encourages healthy soil biology and helps build a living soil system that improves over time.
Unlocks Nutrients Naturally
Improves nutrient availability naturally, helping plants access more of what is already in the soil.
Builds Better Soil Structure
Improves soil structure and humus development to support stronger, more fertile soil over the long term.
Safe for Every Growing Space
Safe for fruits, vegetables, flowers, lawns, trees, shrubs, and containers across your entire landscape.
Family & Pet Friendly
Environmentally responsible and safe to use around children and pets when applied as directed.
Organic Support From Leaf to Root
Ultra® works by activating natural biological activity rather than forcing growth with synthetic inputs.
When applied to the soil, Ultra® supports beneficial microorganisms that help break down organic matter and make nutrients easier for plant roots to absorb. This improves soil structure, supports humus formation, and helps plants access nutrients already present in the soil.
When applied to plant foliage, Ultra® is absorbed through the leaves and works in coordination with root activity below ground. This foliar application supports internal plant processes that help maintain steady growth and overall plant balance.
By supporting these natural systems, Ultra® helps create healthier soil and more resilient plants in a way that aligns with organic growing practices.
Because it is OMRI Listed and environmentally responsible, Ultra® is a trusted choice for gardeners looking for a truly organic solution for their home and garden needs.
Ultra® is the go-to organic biological treatment for homeowners who want healthier plants, stronger soil, and natural results they can feel good about.
Naturally Better Soil & Plant Health
Organic Support from the Soil Up
A Smarter Organic Way to Grow
Powered by Biology, Not Synthetics
How to Use Ultra® in Your Home Garden
Ultra® is easy to mix and apply, whether you are supporting roots in the soil or spraying foliage during active growth.
Watering, Transplant, or Soil Drench
Mix 1 ounce of concentrate into 1 gallon of water. Apply 4 ounces, about one-half cup, of the diluted solution per plant every 30 days.
For best results:
- Dip seeds into the diluted solution before planting.
- Soak bulbs and bare roots in the solution for one hour prior to planting to support early root establishment.
For Flowers, Fruits, Vegetables, Trees, Shrubs, and Houseplants
Mix 1 to 2 ounces of concentrate into 1 gallon of water. Mist evenly onto plant foliage every 7 days during active growth.
For best absorption:
- Spray early in the morning or late in the evening.
- Do not spray in direct sunlight when temperatures exceed 85 degrees Fahrenheit.
⚠️ Important Note: Do not apply Ultra® to the foliage of African Violet plants.
Get Started Today
Contact AgriGro to learn how Ultra® can enhance your operation.