With autumn comes the emergence of two major groups of native wildflowers: goldenrods (Solidago sp.) and asters (Symphyotrichum spp.). Their late blooming time, after other native wildflowers have faded, makes these wildflowers ecologically important to many species. They are a vital food source to pollinators; especially native bumblebees and south-migrating Monarch butterflies (Danaus plexippus), which feed on the large amounts of nectar and pollen produced by aster flowers. When the flowers emerge in September, the vibrant florets of aster species attract bees and butterflies. Both groups of wildflowers are highly diverse; each constituting more than 15 species. Native wildflowers commonly…
Autumn Nectar for Bees and Butterflies Ontario’s Native Asters
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