Quote:
Originally Posted by The Hollyberry Lady
Gonna use my chrysanthemums this year and make my own pyrethrum spray...
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Unfortunately you won't find any significant amount of pyrethrins in flowers from the genus Chrysanthemum. Instead, you need to grow the more potent "African chrysanthemums" Tanacetum cinerariifolium (Dalmatia, Dalmatian insect-flower) and/or Tanacetum coccineum (Persian Daisy, Painted Daisy).