Taxon ID:
Usage Facet: class=edible; edible_score=1.0; ornamental_score=0.0; inferred_from_taxon=no
Relationships: 0 | Linked Entities (visible): 0 | Evidence claims: 17 | History events: 0 | Catalog issue offerings: 0
Open profile JSON | Open lineage explorer | Open lineage JSON
Evidence Badge: emerging | claims=17 | sources=3 | contradictions=0
Claim Types: description_snippet:4, recommendation_context:4, caption_context:2, growth_habit:2, taxon_context:2, breeder_reference:1, productivity:1, source_reference_abbreviation:1 | Open evidence summary JSON | Open citation drawer JSON
Connected Views: lineage table | lineage graph | history charts | trait matrix | search
Link Filter: showing signal links (candidate hidden); hidden candidate links=0. Show candidate links
Mary Washington is an asparagus cultivar, not a fruit cultivar. Catalog sources describe it as a large, early, prolific Washington type selected for heavy production, long unbranched shoots, and tender dark green spears that stay tight budded well above cutting height. One nursery description calls it a giant asparagus and credits years of breeding work by the United States Department of Agriculture. [S1] [S2]
The sources place Mary Washington within the broader Washington strain group and note that related names were sold, including Washington, Martha Washington, and Giant Washington. A 1937 northern planting catalog says Cornell experiments found the Mary Washington strain much better than Martha Washington strains and says this was the strain being sold. A 1950 Daniels catalog repeats the USDA breeding attribution and presents it as an improved standard, not a local novelty. [S1] [S2]
The clearest descriptive material concerns the shoots. Sources describe them as large, early, and prolific, with spears that do not branch near the ground and can often be cut as long unbranched shoots with tight buds. The Daniels catalog adds that the shoots are enormous, tender, vivid dark green, and stay tender while holding their branching point well above cutting height. It also describes the cultivar as rust resistant and claims exceptional yield and quality. [S1] [S2]
The packet does not give direct hardiness wording, a release year, or a named breeder beyond the general USDA attribution. Geographic context comes mainly from northern nursery marketing and from the Cornell comparison cited in the 1937 catalog, which at least places Mary Washington in northern commercial use by that time. [S1] [S2]
Summary source basis
This summary currently draws chiefly from Daniels planting guide, 1950, with 2 additional supporting sources linked below.
Selected source quotations
“MARY WASHINGTON This Giant Asparagus, the result of years and years of plant breeding work done by the United States Department of Agriculture, is everywhere admitted to be the finest asparagus grown.”
— Daniels planting guide, 1950, p29
“MARY WASHINGTON—One of the best old stand-by varieties; makes a heavy growth, large, tender tips; can be cut early and runs a long season.”
— Planting time, 1950 / Alpha Nursery, p6
“MARY WASHINGTON ASPARAGUS. The shoots are large in size, early, prolific, and do not branch near the ground”
— Hardy fruits for Northern planting, trees, shrubs, 1937, p15
Direct parent cultivars
Parentage claim text
Derived or downstream cultivar links
Source-story quotations
Taxonomy context: No family-tree context surfaced yet.
Related cultivars mentioned in source context
Zone assertions are structured rows. Hardiness claim text appears in evidence claims and page-linked citations.
| Zone Min | Zone Max | Zone Text | Assertion Type | Outcome | Location | Confidence |
|---|---|---|---|---|---|---|
| No explicit zone assertion rows yet. | ||||||
No linked media assets.
| Document | Title/URL | Rights | Claims | Relationships | History Events | Pages | Snippets |
|---|---|---|---|---|---|---|---|
| 106 | Daniels planting guide, 1950 | unknown | 7 | 0 | 0 | p29 | Promoted as your earliest spring garden rewards with high vitamin lusciousness.; Its enormous tender shoots of vivid dark green retain their tenderness and do not branch until well above cutting height.; Said to surpass |
| 105 | Hardy fruits for Northern planting, trees, shrubs, 1937 | unknown | 6 | 0 | 0 | p15 | Illustrated on the page with the caption Mary Washington Asparagus.; The catalog states that it supplies the Mary Washington strain.; Experiments at Cornell University are cited as indicating that the Mary Washington str |
| 139 | Planting time, 1950 / Alpha Nursery | unknown | 4 | 0 | 0 | p6 | Produces large, tender tips, can be cut early, and runs a long season.; Makes a heavy growth.; Described as one of the best old stand-by varieties.; Listed under Asparagus as a two-year-root offering. |
| Document | Page | Claim Type | Claim | Quote | Match |
|---|---|---|---|---|---|
| 139 | p6 | description_snippet | Produces large, tender tips, can be cut early, and runs a long season. | MARY WASHINGTON—One of the best old stand-by varieties; makes a heavy growth, large, tender tips; can be cut early and runs a long season. | page_block:0.90 |
| 139 | p6 | growth_habit | Makes a heavy growth. | MARY WASHINGTON—One of the best old stand-by varieties; makes a heavy growth, large, tender tips; can be cut early and runs a long season. | page_block:0.90 |
| 139 | p6 | recommendation_context | Described as one of the best old stand-by varieties. | MARY WASHINGTON—One of the best old stand-by varieties; makes a heavy growth, large, tender tips; can be cut early and runs a long season. | page_block:0.90 |
| 139 | p6 | taxon_context | Listed under Asparagus as a two-year-root offering. | MARY WASHINGTON—One of the best old stand-by varieties; makes a heavy growth, large, tender tips; can be cut early and runs a long season. | page_block:0.90 |
| 105 | p15 | caption_context | Illustrated on the page with the caption Mary Washington Asparagus. | MARY WASHINGTON ASPARAGUS. The shoots are large in size, early, prolific, and do not branch near the ground | page_block:0.90 |
| 105 | p15 | recommendation_context | The catalog states that it supplies the Mary Washington strain. | MARY WASHINGTON ASPARAGUS. The shoots are large in size, early, prolific, and do not branch near the ground | page_block:0.90 |
| 105 | p15 | source_reference_abbreviation | Experiments at Cornell University are cited as indicating that the Mary Washington strain is very much superior to Martha Washington strains. | MARY WASHINGTON ASPARAGUS. The shoots are large in size, early, prolific, and do not branch near the ground | page_block:0.90 |
| 105 | p15 | taxon_context | The entry notes multiple strains of the Washington type on the market, including Washington, Martha Washington, Giant Washington, and Mary Washington. | MARY WASHINGTON ASPARAGUS. The shoots are large in size, early, prolific, and do not branch near the ground | page_block:0.90 |
| 105 | p15 | growth_habit | Shoots do not branch near the ground, making it possible to cut unbranched shoots with tight buds often 2 feet long. | MARY WASHINGTON ASPARAGUS. The shoots are large in size, early, prolific, and do not branch near the ground | page_block:0.90 |
| 105 | p15 | description_snippet | Shoots are large in size, early, and prolific. | MARY WASHINGTON ASPARAGUS. The shoots are large in size, early, prolific, and do not branch near the ground | page_block:0.90 |
| 106 | p29 | caption_context | Promoted as your earliest spring garden rewards with high vitamin lusciousness. | MARY WASHINGTON This Giant Asparagus, the result of years and years of plant breeding work done by the United States Department of Agriculture, is everywhere admitted to be the finest asparagus grown. | page_block:0.90 |
| 106 | p29 | description_snippet | Its enormous tender shoots of vivid dark green retain their tenderness and do not branch until well above cutting height. | MARY WASHINGTON This Giant Asparagus, the result of years and years of plant breeding work done by the United States Department of Agriculture, is everywhere admitted to be the finest asparagus grown. | page_block:0.90 |
| 106 | p29 | productivity | Said to surpass all other varieties in yield and quality. | MARY WASHINGTON This Giant Asparagus, the result of years and years of plant breeding work done by the United States Department of Agriculture, is everywhere admitted to be the finest asparagus grown. | page_block:0.90 |
| 106 | p29 | description_snippet | Described as rust-resistant. | MARY WASHINGTON This Giant Asparagus, the result of years and years of plant breeding work done by the United States Department of Agriculture, is everywhere admitted to be the finest asparagus grown. | page_block:0.90 |
| 106 | p29 | recommendation_context | Seems to be the ideal asparagus. | MARY WASHINGTON This Giant Asparagus, the result of years and years of plant breeding work done by the United States Department of Agriculture, is everywhere admitted to be the finest asparagus grown. | page_block:0.90 |
| 106 | p29 | recommendation_context | Said to be everywhere admitted to be the finest asparagus grown. | MARY WASHINGTON This Giant Asparagus, the result of years and years of plant breeding work done by the United States Department of Agriculture, is everywhere admitted to be the finest asparagus grown. | page_block:0.90 |
| 106 | p29 | breeder_reference | Result of years of plant breeding work done by the United States Department of Agriculture. | MARY WASHINGTON This Giant Asparagus, the result of years and years of plant breeding work done by the United States Department of Agriculture, is everywhere admitted to be the finest asparagus grown. | page_block:0.90 |
| Year | Nursery | Catalog Issue | Relation |
|---|---|---|---|
| No catalog issue offerings linked. | |||
| Relation | Type | ID | Label |
|---|---|---|---|
| No linked entities at this filter level. | |||
| Type | Claim | Confidence |
|---|---|---|
| description_snippet | Produces large, tender tips, can be cut early, and runs a long season. | 0.91 |
| growth_habit | Makes a heavy growth. | 0.90 |
| recommendation_context | Described as one of the best old stand-by varieties. | 0.92 |
| taxon_context | Listed under Asparagus as a two-year-root offering. | 0.95 |
| caption_context | Illustrated on the page with the caption Mary Washington Asparagus. | 0.98 |
| recommendation_context | The catalog states that it supplies the Mary Washington strain. | 0.95 |
| source_reference_abbreviation | Experiments at Cornell University are cited as indicating that the Mary Washington strain is very much superior to Martha Washington strains. | 0.95 |
| taxon_context | The entry notes multiple strains of the Washington type on the market, including Washington, Martha Washington, Giant Washington, and Mary Washington. | 0.92 |
| growth_habit | Shoots do not branch near the ground, making it possible to cut unbranched shoots with tight buds often 2 feet long. | 0.96 |
| description_snippet | Shoots are large in size, early, and prolific. | 0.97 |
| caption_context | Promoted as your earliest spring garden rewards with high vitamin lusciousness. | 0.89 |
| description_snippet | Its enormous tender shoots of vivid dark green retain their tenderness and do not branch until well above cutting height. | 0.98 |
| productivity | Said to surpass all other varieties in yield and quality. | 0.97 |
| description_snippet | Described as rust-resistant. | 0.98 |
| recommendation_context | Seems to be the ideal asparagus. | 0.92 |
| recommendation_context | Said to be everywhere admitted to be the finest asparagus grown. | 0.94 |
| breeder_reference | Result of years of plant breeding work done by the United States Department of Agriculture. | 0.99 |
| ID | Type | Year | Label |
|---|---|---|---|
| No history events. | |||