Cordyline fruticosa, Asparagaceae. Also known by a wide variety of common names, including cabbage palm, good luck plant, palm lily, and ti plant. Shot at Miami Beach Botanical Garden, FL.
Verbena spp, Verbenaceae. I am guessing that this is a Verbena x hybrida, variety was not labelled in the Royal Botanical Gardens, Burlington, Ontario, Canada.
Parthenocissus quinquefolia, Vitaceae.
Common names: Virginia creeper, Victoria creeper, five-leaved ivy, or five-finger.
Shot on July 1, 2020 using a cell phone. I went back two times with a camera, around the same time (7:20 pm), but no bees!
Vitex agnus-castus, Verbenaceae. Also called vitex, chaste tree, chasteberry, Abraham's balm, lilac chastetree, or monk's pepper. Shot at Chicago Botanic Garden.
Hamamelis virginiana, Hamamelidaceae. Some blooms in winter in Michigan, others bloom in March/April. Honey bees will occasionally forage on it. The flowers have a strong fragrance.