Plant
Winter Hibiscus moscheutos
5 US plant patents name this plant. 5 have expired, so those cultivars are free to propagate and sell.
Already in the public domain — 5 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.
- Morrison-Gilberg (VI)PP14222Ornamental winter Hibiscus moscheutos named ‘Morrison-Gilberg (VI)’PUBLIC DOMAINMarch 20, 2020
- Morrison-Gilberg (VIII)PP14223Ornamental winter Hibiscus moscheutos named ‘Morrison-Gilberg (VIII)’PUBLIC DOMAINMarch 20, 2020
- Morrison-Gilberg (X)PP14312Ornamental winter Hibiscus moscheutos named ‘Morrison-Gilberg (X)’PUBLIC DOMAINMarch 20, 2020
- Morrison-Gilberg (VII)PP14313Ornamental winter Hibiscus moscheutos named ‘Morrison-Gilberg (VII)’PUBLIC DOMAINMarch 20, 2020
- Morrison-Gilberg (IX)PP14349Ornamental winter Hibiscus moscheutos named ‘Morrison-Gilberg (IX)’PUBLIC DOMAINMarch 20, 2020
Botanically this is Hibiscus. A patent expiring frees the plant, and its cultivar name with it — cultivar names cannot be trademarked. Any brand name it is sold under is a separate thing and may still be owned.