Photo by Melody

PlantFiles: Asparagus
Asparagus officinalis 'Mary Washington'

Family: Liliaceae (lil-ee-AY-see-ee) (Info)
Genus: Asparagus (a-SPARE-uh-gus) (Info)
Species: officinalis (oh-fiss-ih-NAH-liss) (Info)
Cultivar: Mary Washington

5 vendors have this plant for sale.

12 members have or want this plant for trade.


36-48 in. (90-120 cm)

9-12 in. (22-30 cm)

USDA Zone 4a: to -34.4 C (-30 F)
USDA Zone 4b: to -31.6 C (-25 F)
USDA Zone 5a: to -28.8 C (-20 F)
USDA Zone 5b: to -26.1 C (-15 F)
USDA Zone 6a: to -23.3 C (-10 F)
USDA Zone 6b: to -20.5 C (-5 F)
USDA Zone 7a: to -17.7 C (0 F)
USDA Zone 7b: to -14.9 C (5 F)
USDA Zone 8a: to -12.2 C (10 F)
USDA Zone 8b: to -9.4 C (15 F)
USDA Zone 9a: to -6.6 C (20 F)
USDA Zone 9b: to -3.8 C (25 F)

Sun Exposure:
Full Sun


Bloom Color:
Chartreuse (Yellow-Green)

Bloom Time:
Late Spring/Early Summer


Other details:
Average Water Needs; Water regularly; do not overwater

Soil pH requirements:
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)

Patent Information:

Propagation Methods:
By dividing the rootball
From seed; direct sow after last frost

Seed Collecting:
Unblemished fruit must be significantly overripe before harvesting seed; clean and dry seeds
N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed

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By art_n_garden
Thumbnail #1 of Asparagus officinalis by art_n_garden

By RebeccaLynn
Thumbnail #2 of Asparagus officinalis by RebeccaLynn


5 positives
1 neutral
No negatives

Gardeners' Notes:

Positive RebeccaLynn On Apr 16, 2011, RebeccaLynn from Winston Salem, NC (Zone 7a) wrote:

This is the 9th spring for my asparagus bed and it just gets better and better! I began with a dozen Mary Washington crowns because that was the only variety locally available. Over the years I have continued to build up the bed with leafy compost, cow manure, and rotted sawdust. I have also added Jersey Knight and Purple Passion which I ordered from catalogs. We have had plentiful rains this spring and and we are cutting an abundance ot beautiful speers every other day. The bed is about 5' x 16' which is perfect for a family of 4 and enough for sharing with neighbors.

Neutral Farmerdill On Mar 31, 2006, Farmerdill from Augusta, GA (Zone 8a) wrote:

Shoots are thick, straight, dark green and tinged purple at the tightly folded tips.

Plant this perennial vegetable just once and enjoy the spears for years.

Positive Gabrielle On Jan 25, 2006, Gabrielle from (Zone 5a) wrote:

My Mom and I are asparagus lovers, and I have been growing 'Mary Washington' for several years now. We are both very happy with the flavor, though I can't wait for it to get a better stand!

I have read that asparagus is hardy in zones 3-10. Asparagus likes a lot of mulch, so in late fall I put a lot of shredded leaves and compost on it.

Positive Gindee77 On Jun 24, 2005, Gindee77 from Hampton, IL (Zone 5a) wrote:

As long as you use plenty of organic matter when you plant these roots, you will get a good stand before you know it.

Positive Terry On Apr 29, 2003, Terry from Murfreesboro, TN (Zone 7a) wrote:

Second year for my plants, and they are proving to be very hardy and prolific. Can't wait to start eating some asparagus in earnest next year!

Positive mdgmom On Apr 27, 2003, mdgmom from Montville, NJ wrote:

Perennial grown for tender edible new shoots that appear in early spring. I put in twelve crowns last spring and let them go to flower and seed over the summer. About three fruited (red berries form along the stem)-- this is supposed to be a variety with fewer females ie. more shoot-forming energy, less seed-forming. This spring I already have about a dozen 1 cm x 15 cm spears-- they are delicious! Needs a permanent dedicated spot-- mine are in part shade.


This plant has been said to grow in the following regions:

, (2 reports)
Fayetteville, Arkansas
Saint Petersburg, Florida
Valdosta, Georgia
Hampton, Illinois
Foxboro, Massachusetts
Belding, Michigan
Blissfield, Michigan
Marietta, Mississippi
Natchez, Mississippi
Corvallis, Montana
Trenton, New Jersey
Cary, North Carolina
Winston Salem, North Carolina
Scappoose, Oregon
Murfreesboro, Tennessee
Fort Worth, Texas
Godley, Texas

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