As winter recedes into spring, the pollinators start emerging on warm, mild days. First the gnats, flies, and beetles, then the bumbles and other bees appear, hungry and ready to forage. Finally now the early blooming flowers of spring are beginning to open here in New England to meet that demand. But where did precocious pollinators go before now, on those sporadically warm but still barren days we got before those spring flowers started opening? To find that answer, we have to look up...
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| emerging Pussy willow catkins |
We don't often think of trees as great plants for pollinators, but they are actually some of the earliest available sources of pollen and nectar. Here the American Pussy Willow, or
Salix discolor, is one of the earliest bloomers around and a wonderful resource for bees and other early pollinators. They break out of dormancy in late winter or very early spring, the distinctive furry coats on their catkins trapping heat from the sun to keep the developing reproductive parts warm.
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| bee on male Pussy Willow tree |
The furry emerging catkins open into white and yellowish odd sort of flowers. Pussy Willows are dioecious, that is, they have male catkins and female catkins on different plants. The earlier blooming male trees have the most to offer pollinators, with their catkin flowers containing both strongly scented nectar and pollen. The female willow trees, whose more greenish-colored catkins tend to open slightly later, offer only nectar.
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| bee on female Pussy Willow catkin |
While many trees with catkins are wind-pollinated, the Pussy Willow relies on insects for pollination. Its early flowering time proves beneficial, as there is much less competition for attracting pollinators when hardly anything else is in bloom!
The American Pussy Willow is native to much of the northern half of North America, and grows around 10 to 20 feet tall, usually with multiple stems. Like many willows, it loves water and sun. It grows wild all around the Red House Garden in the wetlands and in the detention pond we have out back. I love the Pussy Willows, as they are the first sign of the coming spring here. Now that other trees and spring flowers are now starting to bloom, the Pussy Willows are finishing up for the season, leaves slowly replacing catkins. Their job has been done...
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| a tiny pollinator on a male Pussy Willow catkin |
...and what an important job it is to those early pollinators.
