Since 1997 Horticultural Alliance has been growing and manufacturing mycorrhizae and other beneficial soil microorganisms for the arborist sector. We have the highest counts and most complete spectrum of organisms to get plants and seed established fast and growing strong.

October 2, 2017

Discover Mycorrhizae Fungi | A Natural Partner in the Ground

  Why buy Mycorrhizae? Mycorrhizal fungi are beneficial to plants as part of a symbiotic relationship with roots that greatly benefits both the fungus and the plant […]
June 26, 2016

Most Accepted Uses of Super-Absorbent Polymers

Solution? Horta-Sorb® Flower Beds | Super-Absorbent Polymers Broadcast-Horta-Sorb® MD at the rate of 1 lb. per 100 sq. ft. and work into the earth 4-6 inches deep. Plant […]
March 25, 2016

Beneficial Soil Fungi – When to Buy

Plants are Ready for Season – How Do They Know? The organisms below ground and the plants above ground certainly are ready; as the days are getting […]