Posted: 21/02/2016 at 14:57
Hi Charley. Apricot Twist is a perennial, more akin to Erysimum 'Bowles Mauve' than to the biennial wallflowers which get bedded out for spring. I haven't found it reliably long lived though.
Call them Erysimum 'Apricot Twist' and google that rather than wallflowers, you'll get a better idea