Originator of the Zvolanek sweet pea early multi-flora : June 1957 to June 1958 : Zvolanek sweat pea late plenti flora : seed direct from our ranch to you : the worlds finest sweet peas and other flow...
Lompoc, Calif, William Zvolanek & Co, 1957
1957
U.S. Department of Agriculture, National Agricultural Library
U.S. Department of Agriculture, National Agricultural Library
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Public domain. The BHL considers that this work is no longer under copyright protection.