Ocean Pearls Agrostemma is a compact, frost-hardy flowering annual that brings elegant cut-flower appeal to gardens across hardiness zones 2 through 10. Growing just 24 to 36 inches tall with a tidy 10-inch spread, this open-pollinated cultivar blooms reliably from June through August, reaching peak flower production 70 to 85 days from seed. Direct-sown in early spring as soil becomes workable, it thrives in full sun with moderate water and performs especially well in cool-season conditions, delivering the refined garden presence of a heritage flower without demanding fuss.
6
Full Sun
Moderate
2-10
36in H x 10in W
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Moderate
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This corn cockle variety produces elegant blooms ideal for early-season cut-flower production, flowering prolifically from July onward when direct-sown in May. Its compact, tidy habit means gardeners can tuck it into tight spaces without staking or sprawl, while its frost-hardy nature extends the growing season in cool climates. Direct seeding is strongly recommended over transplanting, and succession plantings every two to three weeks through midsummer will maintain continuous blooms rather than a single flush.
Ocean Pearls Agrostemma shines as a fresh cut flower for early-season arrangements and bouquets. The catalog sources indicate one to two open flowers on a spray are ready for harvest, making it suited to mixed bouquets where its blooms add delicate texture alongside other flowers.
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Indoor starting is not recommended for this variety. Direct seeding yields superior results.
If transplanting is attempted, sow indoors 4 to 5 weeks before your last spring frost date. Harden off seedlings gradually before moving them to the garden after frost danger passes.
Direct sow in early spring as soon as soil can be worked, or in fall or winter in warmer climates (zones 8 and above). Sow at 1/8 inch depth. For continuous blooms, make successive sowings at 2 to 3 week intervals through midsummer. Germination typically occurs within 7 to 21 days at soil temperatures between 55 and 70 degrees Fahrenheit.
Cut flowers when one to two blooms per spray are open. Harvest in the morning for longest vase life. Regular cutting encourages more blooms, extending the flowering season.
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