|Rudbeckia 'Rustic Dwarfs'|
As I thought they were an annual, at the end of the flowering season I have always dug them up. Last year I didn't for some reason, laziness probably, and they survived, to grow bigger and even better. I have been picking bunches for weeks now, and they will continue flowering right until the first frosts. So, I would say that is jolly good value for money. The packet of seed was 99p. All this colour in the garden for under a £1.