Bachelor's Button is a tender perennial treasure from Brazil that brings continuous summer color to warm-climate gardens. Named for its fluffy, button-shaped lavender-blue flowers that bloom from June through September, this spreading ground cover thrives in USDA zones 10-12 as a permanent garden fixture, though northern gardeners can enjoy it as a warm-season annual. Growing 12-18 inches tall and spreading 2-4 feet wide when established, it demands full sun and moderate moisture in well-drained soil, rewarding patient growers with months of showy blooms and impressive deer resistance.
Full Sun
Moderate
10-12
18in H x 48in W
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High
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The long, uninterrupted bloom sequence from June through September sets this variety apart; in tropical and subtropical climates, it becomes a reliable perennial ground cover that spreads considerably while flowering continuously. Lavender-blue blooms reach just an inch wide, creating a delicate, airy texture that contrasts beautifully with the plant's coarsely-toothed olive-green foliage. Complete freedom from serious insect or disease problems makes it genuinely low-maintenance once established, and its resistance to both deer and rabbit browsing means it fills gaps in gardens where other ornamentals struggle.
Bachelor's Button excels as a ground cover in warm climates where it spreads generously and flowers continuously, making it valuable for landscape borders, beds, and mixed plantings. In cooler regions, it serves well as a summer annual for annual beds and containers, providing sustained color through the warmest months. Its deer and rabbit resistance renders it particularly useful in wildlife-prone gardens where aesthetic choices are limited.
No timeline data available yet for this variety.
Start seeds indoors 6-8 weeks before your last spring frost date to establish strong plants before transplanting. This timing ensures plants have sufficient size and vigor when moved to the garden after frost danger passes.
Transplant outdoors only after the last frost date has passed and soil temperatures are reliably warm. Harden off seedlings gradually over 7-10 days by exposing them to outdoor conditions in increasing increments. Space plants 24 inches apart for optimal spread and airflow.
Minimal pruning is required, though deadheading spent flower clusters encourages continuous blooming throughout the June-September window. In tropical and subtropical zones where plants become perennial, light pruning in late winter helps maintain shape and control spread if the plant exceeds its allocated space.
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“Centratherum punctatum, commonly called Brazilian bachelor's button, originated in Brazil and has been cultivated as both a reliable perennial in warm climates and a dependable annual in temperate regions. The 'Button Beauty' selection represents careful cultivation of the species to enhance its ornamental qualities and garden performance. Its journey to seed catalogs and nurseries reflects the horticultural interest in tropical and subtropical plants that can bridge the gap between tender perennials and cold-sensitive annuals.”