The spring bloom is a strong increase in phytoplankton abundance that typically occurs in the early spring and lasts until late spring or early summer. Spring blooms typically last until late spring or early summer, at which time the bloom collapses due to nutrient depletion in the stratified water column and increased grazing pressure by zooplankton.
This week the earliest of spring flowers are starting to dot the landscape with color and the tree buds give a promise of warmer days ahead. Daffodils are in full bloom, as well as crocus and dwarf iris. Color is just beginning to peek out from the hyacinths, showing hints of purple and pink.
Spring flowers come along and cheer us up at a time when we most need it -- after we've somehow survived another long winter. Speaking for myself, it wouldn't be going too far to say that they help me convalesce as I recuperate from Old Man Winter's months-long blustery barrage.