[{"source_document_id":103,"title":"PERENNIALS - The Northwest Nursery Co.","url":"https://archive.org/download/CAT31304326/CAT31304326.pdf","rights_status":"unknown","evidence_claim_count":6,"relationship_count":0,"history_event_count":0,"sample_snippets":["Green shade specimens are also choice plants but can be secured at popular prices.","The blue forms are described as the queens of ornamental evergreens and command a fancy price.","Color varies from a dark green to a shining silvery blue.","The nursery states it has never known it to winter-kill or fail through drought."]},{"source_document_id":106,"title":"Daniels planting guide, 1950","url":"https://archive.org/download/CAT31385782/CAT31385782.pdf","rights_status":"unknown","evidence_claim_count":5,"relationship_count":0,"history_event_count":0,"sample_snippets":["Said to be invaluable in landscape work.","Has a neat compact form and symmetrical habit of growth.","Brilliant blue-green color; the tree's glory is its intense steel-blue foliage.","Presented as the most popular novelty for planters of the northern states."]}]