Myke contains mychorrizal fungi and other natural organisms that bind to the roots to improve plant growth and longevity. Availability: Usually ships the next business day. Myke Mychorizae for Trees & Shrubs (1.4 qt.) 067-021$14.95 We guarantee satisfaction with everything we sell. Questions? Call us toll free at 877-898-6546. Mon. - Sat. 9-6, & Sun. 10-5 Mountain Time