|...ARE JUST COMING INTO BLOOM...|
|...ALONG THIS SUNNY HWY. K DITCH|
The marsh marigolds, Caltha palustris, in the Buttercup (Ranunculus) Family, just started blooming in roadside ditches on our back roads. In another week the roadsides will be glorious with these bright yellow flowers. They are native throughout Canada, Alaska, the Upper Midwest and the West Coast, growing in roadside ditches, along stream banks, and in bogs and other wet habitats.
My record of bloom dates for marsh marigolds is as follows: 4/30/17; 5/08/16; 4/29/15; 5/22/14; 5/01/13; 4/30/12; 4/25/10; 5/17/09. These blooming dates are fairly consistent around the First of May except for a couple of late springs. We don't drive the back roads every day, so the recorded bloom date may sometimes be late by a few days.
In my experience, marsh marigolds need several warm days to force them into bloom.