[{"source_document_id":139,"title":"Planting time, 1950 / Alpha Nursery","url":"https://archive.org/download/CAT31385295/CAT31385295.pdf","rights_status":"unknown","evidence_claim_count":1,"relationship_count":0,"history_event_count":0,"sample_snippets":["Described as velvet crimson maroon, large, very double, and a vigorous grower."]}]