Amccour, Ornithogalum is a Pregnant Onion. Yes, they're evergreen, and in spring/summer, given sufficient light, a tall stalk grows from the center vase. Flowers grow from the uppermost tip. Flowers aren't the main attraction though.

Clivia is evergreen, too. They go dormant in winter, but leaves remain. There are some beautiful specimens..

Ledebourias are evergreen, too. lol. The produce small, white w/purple/pink hue flowers in late winter until autumn. They do best in shallow bowls. There's several varieties, some w/spots deeply pronounced. Toni