10 PRE-CHILLED Peter Stuyvesant Hyacinth Bulbs PRE-CHILLED Fragrant and Luscious Purple Hyacinth Bulbs Largest Bulb Size 16-17 cm 12" Tall Zones 4-10 but needs pre-chilling in Zones 8-10 Marde Ross & Company specializes in flowering bulbs and peonies and has been a licensed California Nursery for 28 years