20 Poppy Flower Seeds Henzol Violet Meconopsis Poppies. One Stop Poppy Shoppe&reg; Brand. Perennial Zones 6-9. Can be grown as an Annual in other Zones. Plant in Spring or Fall. Grows 2-4 feet high. Soil: Acidic and cool. Full shade to mostly shade. Freely reseeds itself. Special planting and growing instructions included.