Plants which are easy to harvest seeds from

[Digitalis]

Can you recommend any (ornamental) plants I can sow now/this year that produce seeds which are easy to harvest next year?

Thank you!

[Digitalis]

[sunloving]

Poppies californian are tough, nigella, aqualigia, cerinthe, larkspur, cornflowers, calendula,sweet william. All can be sown now or in spring and produce lots of seed by next autumn.
x sunloving