<https://www.gardensplus.ca/product/nepeta-purrsian-blue/#product>
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"The Purrfect size! The tidy, naturally rounded habit usually doubles its width in the second year. Dark purple calyxes surround the periwinkle blue flowers rising from the foliage.  All round winner with easy caer, drought tolerant, deer resistant, long blooming; looks great all season.\r\nNepeta are smothered with blossoms in summer. One of the best perennials to edge or underplant with larger perennials like Moonbeam Coreopsis and daylilies.  Its long season of bloom and carefree habit make N. Purrsian Blue a great choice to add to any perennial garden.  Zone 4\r\nAttracts Bees, Butterflies and Hummingbirds\r\nDeer and Rabbit resistant\r\nFull sun Blooms early summer to early fall\r\nHeight: 35cm(14″) Diameter: 55cm(20″)"
<https://www.gardensplus.ca/product/nepeta-purrsian-blue/>