Genus
Eryngium
15 US plant patents have been granted in this genus. 7 are already in the public domain — anyone may propagate and sell them. The next of the 8 still protected comes off patent on March 20, 2027.
Still under patent — 8 cultivars
Soonest to come off patent first. You may not propagate these for sale until the date shown.
- Paradise JackpotPP18942Eryngium plant named ‘Paradise Jackpot’UNDER PATENTMarch 20, 2027
- Sunny JackpotPP18961Eryngium plant named ‘Sunny Jackpot’UNDER PATENTMarch 20, 2027
- Amazing jackpotPP18969Eryngium plant named ‘Amazing jackpot’UNDER PATENTMarch 20, 2027
- EPTJPP20882Eryngium plant named ‘EPTJ’UNDER PATENTSeptember 8, 2028
- Big BluePP20636Eryngium plant named ‘Big Blue’UNDER PATENTOctober 8, 2028
- White StarPP23305Eryngium plant named ‘White Star’UNDER PATENTAugust 12, 2031
- NEPTUNES GOLDPP27092Eryngium plant named ‘NEPTUNES GOLD’UNDER PATENTOctober 15, 2034
- GEN E001PP34507Eryngium plant named ‘GEN E001’UNDER PATENTOctober 11, 2041
Already in the public domain — 7 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.
- Little Blue WonderPP18436Eryngium plant named ‘Little Blue Wonder’PUBLIC DOMAINFebruary 10, 2026
- Jade FrostPP17370Eryngium planum plant named ‘Jade Frost’PUBLIC DOMAINSeptember 12, 2025
- Sapphire BluePP11088Eryngium plant named `Sapphire Blue`PUBLIC DOMAINAugust 26, 2017
- Silver StonePP7150Eryngium planum plant named Silver StonePUBLIC DOMAINOctober 21, 2008
- Blue RibbonPP7151Eryngium planum plant named Blue RibbonPUBLIC DOMAINOctober 21, 2008
- CalypsoPP7152Eryngium planum plant named CalypsoPUBLIC DOMAINOctober 21, 2008
- FluelaPP7218Eryngium planum plant named FluelaPUBLIC DOMAINOctober 21, 2008
A patent expiring frees the plant, and its cultivar name comes with it — cultivar names cannot be trademarked, so they are always free to use. What it does not free is any brand name the plant is marketed under. Those are trademarks and renew indefinitely.