Mark Summers

Laurence C. Hatch

This is the November 2017 register of all new ornamental or landscape tree, shrub, conifer, and vine cultivar submitted or registered in the Open Registration Of Cultivars (OROC)(pronounded OH-rock) from 2013 to late 2017. OROC was formed to remedy the lack of an worldwide catalog of new cultivars because existing patent, trademark, and ICRA agencies barely account for 5% of the available new material. By reason, patented plants are only those likely to be very popular or from larger firms who can pay the free, not collector's items, most university items, nor smaller nurseries.

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