2 pack bundle. The Livingston Seed Company Zinnia Giant Double Scarlet Flame Annual Seeds are perfect for outdoor planting in humid continental climates. Plant these red Zinnia seeds 6-8 weeks before the last frost, and enjoy their vibrant blooms during the summer and spring seasons. These flower seeds are easy to cultivate, bee friendly, and thrive in full sun. Add a touch of floral beauty to your yard or garden with these Livingston Zinnia seeds.