Spring in the Salish Sea April 20, 2022 The bloom of intertidal seaweeds is just as indicative of spring as our cherry blossoms and tulips. The new growth of seaweeds are especially vibrant, this is really the best time of year to get out and appreciate them! If you slow down and look very closely, you might see the aggregation of sapsuckers frolicking in the Polysiphonia.