Cannas!
The more tender varieties, often referred to as tropicals, are hardy in Zones 8 through 11. In areas colder than Zone 8, tropicals can be used as house plants in the winter with adequate light and moist soil. HYBRID CANNAS: The Longwood hybrids are true aquatic cannas developed by Robert Armstrong. 
Canna ‘Endeavour’, L.G.(Red hybrid Longwood Canna) 4’ to 5’ – Flowers June, July, Augustr> Zone 8 
Canna ‘Erebus’, L.G.(Pink hybrid Longwood Canna) 4’ to 5’ – Flowers June, July, August Zone 8 
Canna ‘Ra’, L.G.(Yellow hybrid Longwood Canna) 4’ to 5’ – Flowers June, July, August Zone 8 TROPICALS: 
Arundo donax ‘Variegatus’(Variegated Mediterranean Reed) 5’ to 10’ – Flowers September, October Zone 7 An abundance of creamy-white variegated foliage. Best suited to a large container as a specimen plant. 
Canna ‘African Sunset’(African Sunset) 4’ to 5’ – Flowers June, July, August Zone 8 Spectacular foliage changes color continually as it matures, much like the setting of the sun…red, yellow, pink and orange. Orange flowers. 
Canna ‘Australia’(Australia) 4’ to 5’ – Flowers June, July, August Zone 8 Large-shaped glossy burgundy-lack foliage. Red flowers. 
Canna ‘Bengal Tiger’(Bengal Tiger) 4’ to 5’ – Flowers June, July, August Zone 8 Brilliant splashes of yellow decorate the broad leaves for a constant summer display. Beautiful orange flowers. 
Colocasia esculenta ‘Black Magic’(Black Taro) 4’ Zone 8 Incredible dusty charcoal black leaves on dark burgundy, almost black stems. 
Colocasia esculenta ‘Fontanesia’,br>(Violet Stemmed Taro) 4’ Zone 8 Attractive dark violet/black stems contrast with bold, huge, shiny green leaves. An outstanding specimen plant, best suited to medium to large ponds. 
Colocasia esculenta ‘Red Stem’(Red-Stemmed Taro) 4’ to 5’ Zone 8 Dusty green leaves on rich red stems. 
Colocasia antiquorum ‘Illustris’(Imperial Taro) 2’ to 3’ Zone 8 Large green leaves blotched with violet black. 
Cyperus giganteus(Mexican Papyrus) 8’ to 10’ Zone 8 Showier and more upright than Egyptian papyrus. An awesome specimen plant. Excellent for natural filtration in large ponds. 
Thalia dealbata(Hardy Water Canna) 6’ – Flowers July, August, September Zone 7 Bold dramatic foliage. Rich purple flowers atop narrow spikes sway gracefully in the breeze. 
Thalia geniculata form ruminoides(Red Stemmed Thalia) 5’ to 6’ – Flowers August, September Zone 8 Distinctive red stems with broad, bold tropical foliage. Delicate clusters held high above. the actual search results. Those are not from the site, but may be of interest, since Google targets the ads to your particular search.
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