Canna glauca ‘Ra’, Water canna is generally hardy in zones 8b - 11 and is cherished for it's tropical looking foliage with an array of sunset colored flowers perched atop the foliage mass. A Longwood hybrid, Canna glauca 'Ra' has a blue-green foliage with bright yellow flowers. The tallest of the water cannas growing between 4-6' tall, Canna glauca 'Ra' can be grown in sun to part shade in rich moist garden soil.
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