One of my favorite plants for hanging baskets and trellises is the Thunbergia Alata. Sometimes called the Black-Eyed Susan Vine, this perennial is native to Africa but can be grown as an annual here in South Jersey and will bloom all spring and summer if kept watered and fertilized every few weeks. I buy one of these hanging baskets every spring.
My purple clematis is in bloom and has reached the top of the trellis just as the pink dogwood is shedding all it’s petals everywhere. I love spring.