Where to find pyrethrum daisy seeds
Hi there: Recently I read a lot of good thibgs about this organic pesticide pyrethrum made by this Dalmatian chrysanthemum, but its hard to find teliable seeds of it! I wonder do you have information where to buy the seeds? Do tou think its a good idea to promote planting this among backyard gardeners? Thank you!
Montgomery County Maryland
Pyrethrum is the source of a very potent pesticide. The chemical, pyrethrin, is not made from your typical wild lawn daisy, or from the many perennial and annual daisies sold as ornamentals, It is made from the dried flower of Chrysanthemum cinerariaefolium . The Painted Daisy also has some pyrethrin in it. Most people use synthetic or manufactured products. The names are so similar, it can get confusing.
Here is more information as well as toxicity from the National Pesticide Information Line. It is toxic to honeybees and fish.
Unfortunately, just growing it in your garden will not deter pests.
Here is our publication on least toxic ways to Manage Problems in Your Landscape http://extension.umd.edu/sites/extension.umd.edu/files/_images/programs/hgic/Publications/HG62%20IPM...