violets

I read recently that a collection of pine trees and other evergreens is called a pinetum. A new term to me. I already knew that an arboretum is a collection of trees and a herbarium is a collection of dried plant material. I did some online searching to find out if there were any other -tums or -ums for different types of plant collections and couldn't find any. Then I remembered rosariums which are gardens of roses. And terrariums, which are gardens in glass containers, not to be confused … [Read more...] about A collection of plants in the genus Viola is called…