Tetra White Wonder Feverfew is a compact, double-flowered cultivar of Tanacetum parthenium that brings months of delicate blooms to the garden from spring through summer. Growing just 24 inches tall with a spread of 12 inches, this hardy perennial thrives in full sun across zones 4 and warmer, making it reliable even in colder climates. The distinctive double white flowers appear in abundance from March through August, creating a cloud of pristine blooms that look equally lovely in beds, borders, or cut arrangements.
1
Full Sun
Moderate
4-4
24in H x 12in W
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Moderate
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This tetraploid feverfew produces fully double white flowers that set it apart from single-flowered varieties, creating an almost pompom-like effect that holds its appeal throughout an exceptionally long bloom season. The compact, bushy growth habit and moderate water needs once established mean it handles the transition from spring through summer heat without fussiness. Surface sowing and light germination requirements make it straightforward to start from seed indoors six to eight weeks before your last frost.
Feverfew flowers are traditionally used fresh or dried for herbal preparations, though this double-flowered ornamental variety is primarily grown for its visual appeal in gardens and as a long-lasting cut flower. The delicate blooms add brightness to bouquets and dried arrangements without the need for heavy pruning or deadheading.
No timeline data available yet for this variety.
Start seeds indoors 6 to 8 weeks before your last spring frost. Sow seeds on the surface of moist seed-starting mix and firm them in lightly; they require light to germinate. Maintain temperatures between 60 and 75 degrees Fahrenheit. Germination occurs in 7 to 21 days. Transplant seedlings outdoors after the danger of frost has passed.
Harden off seedlings gradually over 7 to 10 days before moving them to the garden. Plant them outdoors after your last spring frost in a location with full sun. Space plants 12 inches apart. Water well at planting and keep the soil consistently moist during the first few weeks until plants are established.
You can direct sow seeds outdoors after your last frost date. Sow seeds on the soil surface and firm them lightly, ensuring good seed-to-soil contact. Keep the seedbed consistently moist until seedlings emerge in 7 to 21 days. Thin seedlings once they develop their first true leaves.
Deadheading spent flowers throughout the bloom season encourages continued flowering and extends bloom time into late summer. For a bushier plant, pinch back growing tips in early spring before blooming begins.
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