These are from a crop I sowed a few years ago and are available potted or bare root. They came from seed I had for 10 years and finally sowed (half of them). The germination rate was excellent. The following year, I sowed the other half and not a single one sprouted.
These were grown for an entire growing season in their respective pots. Cut back mid season and allowed to toss out new growth.
10-14 inches tall.