Nursery or breeding house
NDSU RES FOUNDATION
6 US plant patents, granted between 1999 and 2025.
Still under patent — 2 cultivars
Soonest to come off patent first. You may not propagate these for sale until the date shown.
Already in the public domain — 4 cultivars
Most recently freed first. Anyone may propagate and sell these plants — though the name it is sold under may still be a live trademark.