Mary Washington Asparagus. Asparagus officinalis. 730 days to maturity. An old time favorite heirloom that was developed approximately in the early 1900s. Delicious, thick, dark green spears. Approximately 50 seeds per pack. Buy Seeds Online Organic Seeds Heirloom Seeds Non-GMO Seeds Vegetable Seeds Flower Seeds Herb Seeds Fruit Seeds Garden Seeds Seed Starter Kits Rare Seeds Bulk Seeds Indoor Gardening Seeds Seed Catalog Seed Packs for Sale Sustainable Seeds Greenhouse Seeds Seed Suppliers Planting Seeds Home Garden Seeds