Thursday, March 19, 2009

Spring Adirondack Wildflower Bloom Dates

Elsewhere in the Northeast, wildflowers are tentatively testing the air, while in the Adirondacks it’s still ski season. It won’t be long, though, till coltsfoot raises its fuzzy yellow head along roadsides.

Two of this region’s most-observant botanists made a study of when each native flower reappears in spring. The late Greenleaf Chase retired from the Department of Environmental Conservation but never tired of guiding friends to see rare blooms in rare places. Professor Mike Kudish, formerly of Paul Smith’s College, created a bloom-date chart for his book Adirondack Upland Flora.

And in case you think botany effete, consider that original Hall-of-Fame pitcher Christy Mathewson kept a list of flowers he found around Saranac Lake in the summer of 1922, when he was there to recover from tuberculosis. (An excerpt: “June 24, 1922: Musk Mallow, Pink Petals also White Petals!!!!”)

Starting with the vernal equinox tomorrow, daylight increases at its fastest rate, Kudish writes. The ground begins to thaw. Around April 5 the mean daily temperature begins to rise above freezing.

Here are Adirondack Upland Flora’s first median flowering dates (at elevations of 1,500 to 2,000 feet; if you live at lower elevations expect to see blooms sooner):

May 2: Trout lily, red maple
May 3: Spring beauty
May 4: Trailing arbutus
May 5: Dutchman’s breeches and squirrel corn
May 6: Round-leaved violet
May 7: Sweet gale
May 8: Sweet white violet
May 9: Painted trillium
May 10: Strawberry
May 11: Bartram’s serviceberry
May 12: Purple trillium
May 14: Leatherleaf
May 15: Blue violet, early saxifrage, Canada honeysuckle, kidneyleaf buttercup; most hardwoods begin to leaf out rapidly
May 17: Marsh marigold and sugar maple
May 19: Bellwort
May 20: Goldthread and toothwort
May 21: Canada violet and serviceberry
May 22: Witchhobble, downy yellow violet, red cherry (Christy Matthewson reported witchhobble blooms in April)
May 23: Dwarf ginseng
May 25: Red elderberry
May 30: Foamflower
May 31: Pussytoes

Shortly before he died in the early 1990s Greenie Chase made flower-finding notes for Kathy Regan, when she was staff biologist at the Nature Conservancy’s Adirondack Chapter. In late May, he suggested, visit Valcour Island to see ram’s head ladyslipper and look on alpine summits for lapland rosebay.

We’ll post more of Christy, Greenie and Mike’s bloom notes as spring and summer progress. You can see Christy Mathewson’s list yourself in the William Chapman White Adirondack Research Center of the Saranac Lake Free Library.

Related Stories


Mary Thill lives in Saranac Lake and has worked alternately in journalism and Adirondack conservation for three decades.




One Response