1985 Canadian Wildflower Society formed. Began publication of Wildflower magazine. Established a gardening Code of Ethics for its members.
1986 Sponsored its first public annual native plant sale.Filed Letters Patent.
1988 Sponsored a native plant propagation workshop. Established its first wildflower gardens tour in Guelph and Waterloo, ON.
1993 Purchased a 50-acre Carolinian woodlot known as Shining Tree Woods near Cultus in Ontario, to conserve the nationally rare native cucumber tree, Magnolia acuminata.
1994 Co-published (with the Federation of Ontario Naturalists) the first booklet on the native plants of Carolinian Canada with conservation and horticultural advice.
1999 Canadian Wildflower Society changed its name to the North American Native Plant Society (NANPS).
2003 Purchased a five-hectare (13-acre) parcel of Zinkan Island Cove, a provincially designated ANSI (Area of Natural and Scientific Interest) on the Bruce Peninsula in Ontario.
2004 Sold Wildflower magazine. Replaced with the “Blazing Star”.
2005 NANPS began conducting regular seminars around Ontario. Formed partnerships with Toronto Botanical Gardens and City of Markham.
2008 Established the Speakers Series on nature, environment and native plant gardening. NANPS founded an e-newsletter, THE LOCAL SCOOP.
2010 Celebrated its 25th Anniversary by publishing a special edition of The Blazing Star. NANPS founder and Honorary President, Jim French, published “Silver Memories”, a personal recollection of the first 25 years.