Rocket Larkspur (Delphinium ajacis), 400 Certified Pure Live Seed, True Native Seed FREE SHIPPING Number of seed is Pure Live Seed, not bulk Species is introduced and naturalized All seed has current test certificate A 2 to 3 tall introduced self-seeding annual with spikes of long-spurred blue flowers. A summer flowering plant growing best in dry to medium soils on full sun or part shade sites.