Double Sunburst Coreopsis is a vibrant, long-blooming perennial that brings cheerful double flowers to sunny garden spaces across zones 4 through 9. This cultivar of Coreopsis lanceolata grows to a compact 3 feet tall and thrives on neglect, asking only for full sun and well-draining soil to produce waves of golden blooms throughout the growing season. Its low water needs and frost-hardy nature make it an exceptionally reliable choice for gardeners seeking color with minimal fuss.
Full Sun
Low
4-9
36in H x ?in W
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Low
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The double flowers of this coreopsis are its defining feature, with ruffled petals that create a fuller, more ornamental look than the single-flowered species. Growing to a neat 3-foot height, it stays compact enough for borders and containers while still commanding attention. The combination of extreme drought tolerance, frost hardiness through zone 4 winters, and a long bloom window makes this a plant that rewards you year after year with virtually no special treatment.
Double Sunburst Coreopsis is grown as an ornamental flower, bringing sustained color to garden borders, rock gardens, and cottage-style plantings. Its long bloom season and compact form make it valuable as a cut flower source for fresh arrangements, and it serves as a reliable nectar plant for pollinators throughout summer and into fall.
No timeline data available yet for this variety.
Start seeds indoors 6 to 8 weeks before your average last frost date. Germinate at temperatures between 65 and 75 degrees Fahrenheit. Press seeds into the surface without covering them, as they need light to germinate. Transplant seedlings outdoors 6 to 8 weeks before your average last frost date, once they are hardened off.
Transplant seedlings outdoors 6 to 8 weeks before your average last frost date. Harden off plants gradually by exposing them to outdoor conditions over several days before planting. Space them 12 inches apart to allow mature plants room to develop.
Sow seeds directly outside 1 to 2 weeks before your average last frost date, or as late as 8 weeks before your average first frost date. Press seeds into the soil surface without covering them.
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