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Penstemon heterophyllus ?Electric Blue? produces intense, electric blue blooms with tints of purple contrasting the silver-green foliage beneath. A hardy perennial, this penstemon will return year after year withstanding tough weather. Long-lasting flowers emerge from June to October, luring in bees and other pollinators to its nectar. Penstemon heterophyllus ?Electric Blue? has a very resilient character, long flowering periods and great weather resistance. Great addition to borders and wildlife schemes. Height and spread: 60cm (24).