Unlike other thistle plants that establish deep taproots ... is a stunning, biennial wildflower that regrettably moonlights as an invasive weed in the U.S. That's because its seeds remain viable ...

Eureka will be abloom next weekend with two major plant sales planned and a wildflower show, too. The Humboldt Botanical Garden is hosting its “Spring Plant Sale” Friday, May 2, and Saturday, May 3, ...

Western trillium,” she said, “are plentiful in Arcata’s Redwood Park and Vietor Memorial Forest behind Humboldt Area ...