I've grown some.
take a milk jug cut top partway off fill with potting mix soak your seeds
overnight.boiled water is fine.it will help soften that black seed
coating water it well(can do boiled water again) and set jug in shade and over the weeks they should start sprouting.go on and tape it up come fall and can winter it just like that(like WS can sow seeds
then same way also)Come spring
you can plant them out.I've tried transplanting some from sides of roads.those adams needles?I've gotton 2 to take verses the failures.I got some of the spanish dagger shark kill ya guys too with whiteflowers but the ones I've dug have not started flowering yet.I dug this 6 ft one with tractor and dug a ditch and laid it in(I thought would get a stright grove like shrub...I was intoxicated when thought this too.The tequilia made me do it.)I also got a spineless yucca.its not flowered though for me yet.A piece broke last year so instead of 2 7 ft stalks I got 1 7 ft stalk with bunch of sprouts on sides and the 3 ft piece that broke that I shoved in ground.I'm glad that IT rooted.
only thing you have to watch for is when the seeds
are comeing out of seedpod if they seem to be kinda stuck will need to moisten it more with misting and small slight gentle help.I think it happens on older seed
more.you can also sprout them in the baggie with papertowel.
I have been poked& spanish dagger is very painful.Its sad that he's sharper than my cutting shears.I bet they'd cut fishing line.