Here in coastal Northern California, Anna's Hummingbirds are year round residents and Allen's Hummingbirds are seasonal visitors. The Anna's are regular visitors, if not residents of my garden. As for bulbs (tubers, etc) that attract hummers: I have an orange flowered, summer blooming Watsonia that I have lost the name of which attracts hummingbirds during its 3-4 weeks of bloom. The tall Cannas in my garden (C. glauca 'Ra' and C. 'Red Stripe') are regularly visted, especially at dusk. I can't say that I've seen hummers visiting my Agapanthus inapertus or the Hedychium (which arrived without a name). The garden has many plants that attract hummingbirds which are not bulbs: Salvia regla is just beginning to bloom; Salvia africana 'Aurea' gets visited while in bloom in late winter/early spring; Aloe nobilis is just finishing bloom; some Dykias which arrived un-named from some friends seem very attractive to hummers while blooming in July; Camellias in winter; Fuchsia regia attracts hummers from summer to early winter; then there's that annoying but very pretty weed, Impatiens balfouri which gets visits often; Abutilons seem to be visited regularly as well. I know there must be more, but I can't think of the other hummingbird attractors just now. Brook Klehm Cool USDA 9 (but with enough heat to get Cannas and one (un-named) Hedychium to bloom. If I ever figure out the wiki, I would love to send in a photo of the Hedychium to see if anyone was familiar with it. Of the four Hedychiums growing in this garden, it is the only one which has ever bloomed. It seems more cool tolerant (less heat demanding) but more cold insensitive than the others.)