Goldenrod (Solidago) is the state flower of the Commonwealth of Kentucky, and it is one of my favorite flowers. Contrary to popular belief, goldenrod does not cause hayfever because the pollen is too thick to travel very far in the wind. Most of the autumn allergies contributed to goldenrod are actually caused by ragweed, which blooms at the same time.
Goldenrod is the host plant to many insects, bugs and butterflies. There are over 18 different varieties of goldenrod native to Kentucky.
I have several plots of goldenrod growing on my one acre property.
Progress at Good Gardening Videos by Garden Rant
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