You are bidding on 10 seeds of Eucalyptus viminalis. 

 It is a beautiful tree that gets unique great blue-silver foliage and it is one of the more cold hardy species of Eucalyptus.  These beautiful plants are hardy to USDA zone 7, possibly colder, and they grow best in full sun to part shade.  They would make excellent additions to your rare plant collection, or just make a unique statement in your yard.

HAPPY GARDENING :)