Tender Green Spears
Produces flavorful green asparagus spears with attractive purple-tinged tips.
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Mary Washington Asparagus is a popular heirloom vegetable variety known for its tender, flavorful green spears with slight purple tips. This perennial asparagus produces reliable crops once established and is valued for its rust resistance and long productive life. It is suitable for vegetable gardens and dedicated asparagus beds with full sunlight and well-drained, fertile soil.
Produces flavorful green asparagus spears with attractive purple-tinged tips.
Known for good resistance to asparagus rust and dependable garden performance.
Returns year after year, producing harvests from an established planting.
A traditional open-pollinated variety valued for its flavor and reliable production.
| Scientific Name | Asparagus officinalis |
| Common Name | Mary Washington Asparagus |
| Plant Family | Asparagaceae |
| Seed Type | Vegetable Seeds |
| Variety | Mary Washington (Open-Pollinated Heirloom) |
| Growth Habit | Upright perennial vegetable |
| Spears Color | Green with purple-tinged tips |
| USDA Hardiness Zones | 3–8 |
| Planting Season | Spring |
| Seed Starting | Start indoors 8–12 weeks before the last frost or direct sow in suitable spring conditions |
| Germination Time | 10–21 days |
| Germination Temperature | 70–80°F |
| Seed Planting Depth | 1/2 inch |
| Sunlight | Full sun |
| Soil Requirements | Deep, fertile, well-drained soil enriched with organic matter |
| Watering | Regular watering during establishment and dry periods |
| Harvest Time | Approximately 2–3 years from seed; full harvesting generally begins in the third year |
| Mature Plant Height | Approximately 3–4 feet |
| Plant Spacing | 12–18 inches |
| Row Spacing | 4–5 feet |
Mary Washington Asparagus produces tender, flavorful green spears and provides dependable harvests from an established perennial planting. Its traditional heirloom characteristics and good rust resistance make it a popular choice for home vegetable gardens. Give plants plenty of sunlight, fertile soil, and time to establish for productive harvests in future seasons.
Learn about Mary Washington Asparagus seed starting, harvesting, and growing characteristics.
Mary Washington Asparagus seeds generally germinate in approximately 10–21 days under suitable conditions. Seedlings need time to develop strong roots and crowns before producing a substantial harvest. Full harvesting generally begins around the third year after planting.
Harvest established Mary Washington Asparagus plants in spring when spears reach approximately 6–8 inches tall. Avoid harvesting during the first year from seed. Begin with light harvesting when plants are sufficiently established and allow the fern foliage to grow after the harvest season to replenish the roots.
Mary Washington is a traditional asparagus variety known for good resistance to asparagus rust. However, resistance does not mean complete immunity. Growing plants in sunny locations, providing good air circulation, maintaining proper spacing, and removing diseased foliage can help support healthier asparagus beds.