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Mary Washington is an heirloom asparagus variety introduced by the US Department of Agriculture in 1949, it has remained a consistent favorite of gardeners and farmers ever since.
The plants produce rich green stalks with a tickle of purple at the tip. They have a feathery blue-green foliage which adds an aesthetic value in addition to its edible value.
Seeds can be started indoors in late winter or early spring for transplanting outdoors after the last frost.
Bare root stock can be planted as soon as the ground is workable in spring.
Pre- Rooted plants can be planted at season end in the fall 4-6 weeks before the first fall frost, they will over winter and grow again after the winter dormancy.
Mary Washington Asparagus, like it's cousin, Martha Washington Asparagus, is a predominantly female cultivar.
It sometimes includes both male and female plants, the males are far more productive in producing abundant spears. Female plants energy is squandered producing seeds and rogue plants, for this reason many gardeners prefer all male varieties. If that is the case, it is advisable you seek out a cultivar such as Jersey Knight Asparagus or Jersey Giant.
Full Sun / Partial Shade
Germination 28 - 35 Days
Slightly Less than 2 Years to Maturity ~ Under good conditions it has a productive life expectancy of approximately 15 years.
Self pollinating. However, you may want to plant pollinating partners to increase crop size. You'll still get Asparagus with just one plant
USDA Hardiness Zones 3 - 9
Plant Height - 3.5 to 4.5 Ft
Spread - 30 Inches
Soil ph: 6.0 -8.0
Yield - Above Average
If perennial weeds or grasses infest an asparagus bed it is extremely difficult to reclaim it. So keep the asparagus bed well-mulched , using shredded leaves or straw. Weed frequently and carefully, asparagus roots near the surface are easily damaged. Domesticated Asparagus does not compete well with weeds or even other domestic garden plants, do not interplant with other crops.