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The Plants Henry Never Knew: The Invasive, Alien Plants "Crisis"
A talk with Peter Alden.

Thoreau was a fine observer and recorder of wildlife and plants in the mid-1800's. As a botanist, he was both a collector and an early phenologist, noting the times of flowering, leafing, and fruiting over decades. Now, 175 years later, Henry would be fascinated (and shocked) to see what grows in our woods, fields, marshes, rivers and back yards. Sauntering around Concord at growing season he would find a quarter of the species he studied missing. He would note native flowers coming out earlier and breeding summertime birds arriving earlier. What might draw his attention most is the abundance of trees, shrubs, vines, wild flowers, grasses and aquatic plants that he would not recognize.

Learn what these invasive alien plants status is locally via color photos, where they came from, what we are doing (or not doing) and what would Henry think. This presentation of these charming newcomers (and the birds and people that spread them) will prepare you for next summer's gardening fun.

Jan 25, 2022 07:00 PM in Eastern Time (US and Canada)

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