Common flowers in spring are; Winter jasmine, golden bell, forsythia, plum blossom, giant knotweed, apricot blossom, magnolia, purple magnolia, sessile begonia, Xifu begonia, bauhinia, wisteria, pansy, calendula, corn poppy, daisy, carnation, kohlrabi, hyacinthus orientalis, tulip, crab claw orchid, Daphne, etc.
I'll send you some casually below.