House Granular Mycorrhizae 4oz:Endo/Ecto is a granular material containing mycorrhizal propagules, which colonize roots and extend into the surrounding soil forming an essential link between plants and soil resources. Increasing the rooting area allows improved access to water and nutrients, promoting plant quality and crop performance. Gardening HavenPlease Read all information prior to purchase/biddingTerms and Policies:Shipping Policy: Gardening Haven ships purchased items within three business days of payment. Items valued over $100.00 will be automatically be insured and require Adult Signature upon delivery. When items are offered with free shipping it is considered to be so for lower 48 US states only excluding Alaska and Hawaii.Payment Policy: Gardening Haven can only accept payment(S) through excepted Ebay payment cards. Payment is expected within three business DAYS after invoice is received.Return Policy: Returns will only be accepted by the following terms: a) If the item received was not what was expected or damaged in transit.b) If there are any missing items that were listed and not received? Your feedback is very important to us; please let us know if you have any issues. Here at Gardening Haven, we strive to provide the highest level of service possible.