Columbine (Aquilegia spp.) - Offers a range of colors with spurred, tubular flowers.
Hummingbird Mint (Agastache spp.) - Known for its long-lasting, fragrant blooms in colors like pink, purple, and orange.
Lobelia (Lobelia spp.) - Provides a cascading effect with its blue, purple, or white flowers.
Fuchsia (Fuchsia spp.) - Features dangling, tubular flowers in shades of red, pink, and purple.