Bare Root Stock (BR) - this stock originates in the tissue culture lab where it is virus indexed and propagated to allow clones of individually indexed stock plantes to be planted. The grower then receives the first generation from this stock which has been grown in the nursery for two years.

Tissue Culture Stock (TC) - this stock originates in the tissue culture lab the same as the bare root stock. Tissue culture plants however are grown in 2" x 2" cell trays under controlled conditions inside a greenhouse. These plants have never been outside so have not be subjected to any of the elements. These plants are sold mainly as dormant plugs.

Nursery Matured Stock (NM) - The stock is a tissue cultured plug plant that has been set out in the nursery for 8-10 weeks. They have a well developed root system and a strong stem. They are sold as a dormant plant.