We cannot think of any plant that draws more hummingbirds than the hardy upright sinningias. Most of these are Sinningia selovii hybrids that come in a range of colors from yellow to orange to red. We have them ringing our full sun patio, which results in a non-stop show of hummingbirds.
We’ve got a different take on going tubing. For us, tubing is something we do, starting in mid-June each summer, when we sit and enjoy our patch of Sinningia tubiflora. This amazing South American (Argentina, Uruguay, and Paraguay) gesneriad (African violet cousin) forms masses of underground potato-like tubers, which produce these amazing stalks of sweetly fragrant flowers for months each summer. These are reportedly pollinated by sphinx months. Sinningia tubiflora is insanely drought resistant and so easy to grow if given enough sun. Since it forms a large mass, don’t plant it near smaller, less-aggressive neighbors.