Carthusian Pink is a hardy heirloom Dianthus with a remarkable ability to bloom from early summer straight through fall, painting gardens with vibrant pink flowers across zones 4 to 4. This compact perennial grows 12 to 24 inches tall and thrives on neglect, asking only for full sun and dry feet to reward you with continuous color. Deer leave it alone, pollinators flock to it, and once established, it shrugs off drought like a seasoned gardener who's learned to work with nature rather than against it.
6
Full Sun
Low
4-4
24in H x 12in W
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High
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Carthusian Pink delivers an exceptionally long bloom window from June through November, which is remarkable for a flower this hardy and low-maintenance. The tight, mounding habit at 12 inches wide makes it equally at home in rock gardens, borders, or containers without needing staking or fussy support. Its combination of deer resistance, drought tolerance, and pollinator magnetism means once you plant it, you're simply enjoying the show.
Carthusian Pink works beautifully as a long-season border flower, providing reliable color from early summer through late fall when many other perennials have faded. Its low water needs and compact form make it an excellent choice for rock gardens, alpine troughs, or the front edge of beds where it won't shade out shorter neighbors. The flowers attract butterflies and other pollinators throughout its extended bloom season.
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Sow seeds indoors 10 to 12 weeks before your last spring frost date. Keep the soil at 65 to 70 degrees Fahrenheit until germination occurs (expect sprouts in 14 to 21 days), then drop the temperature to 55 to 65 degrees Fahrenheit for stocky seedling development.
Harden off seedlings by gradually exposing them to outdoor conditions over 7 to 10 days, then transplant after your last spring frost date when soil has warmed. Space plants 6 inches apart.
Direct sow outdoors 3 to 4 weeks before your last spring frost date, sowing the fine seed at a depth of just 1/16 inch and keeping the soil consistently moist until germination.
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