Purple Globe Amaranth is a frost-tender heirloom flower that produces distinctive round, papery blooms in deep purple from summer through fall. Reaching 24 to 30 inches tall, this resilient plant thrives across all hardiness zones and handles drought well once established, making it a low-maintenance choice for sunny gardens. From seed to first bloom takes 84 to 112 days, rewarding patient gardeners with continuous flowers that attract pollinators throughout the growing season.
Full Sun
Moderate
1-11
30in H x 18in W
—
High
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These distinctive globe-shaped flowers appear almost sculptural in their perfection, with a papery texture that lasts long after blooming. The plant's ability to attract pollinators while tolerating drought and full sun makes it surprisingly tough despite its delicate appearance. Purple Globe Amaranth blooms reliably from early summer through the first frost, providing weeks of color in gardens where many annuals fade by mid-August.
Purple Globe Amaranth is grown primarily as a cut flower and garden ornamental. The long-lasting blooms work beautifully in fresh arrangements and dry exceptionally well for dried flower displays, holding their deep purple color and globe shape for months. Gardeners who leave spent flowers on the plant will find them increasingly ornamental as they dry naturally in the garden.
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Start seeds indoors 6 to 8 weeks before transplanting outdoors. Soak seeds in hot water for 4 hours to speed germination, then sow in sterile germinating mix and maintain temperatures of 70 to 75 degrees Fahrenheit. Seeds typically sprout in 14 to 21 days.
Transplant outdoors after the last frost date, when soil has warmed and nighttime temperatures stay consistently above 50 degrees Fahrenheit.
Direct sow seeds outdoors after all frost danger has passed.
Harvest flowers once the papery globe blooms have fully formed and developed their deep purple color. Cut stems in the morning for the longest vase life. For drying, cut flowers at peak bloom and hang them upside down in a warm, dry, well-ventilated space. Alternatively, leave flowers on the plant to dry naturally for ornamental dried-flower interest in the late summer and fall garden.
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