Buy Flowers › Verbascum arcturus - 4" Pot Verbascum arcturus - 4" Pot $6.50 Creten mullien, yellow flower spikes and gray green basal foliage, zone 9-12 (not hardy in zone 5) Add To Cart Added! Creten mullien, yellow flower spikes and gray green basal foliage, zone 9-12 (not hardy in zone 5)