500 EVENING (NIGHT) SCENTED STOCK Matthiola Bicornis Flower Seeds BLOOM TIME: All Summer HARDINESS ZONE: Annual (but reseeds itself easily, so it acts like a perennial in all zones) PLANT HEIGHT: 6 - 18" . . . PLANT SPACING: 6 - 9" LIGHT REQUIREMENTS: Sun - Part Shade . . . SOIL / WATER: Average White - Pink. Stock is very fragrant and attracts bees, birds, and butterflies.