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Greenthread, Plains Greenthread, Threadleaf Thelesperma, Navajo Tea, False Golden Wave

Thelesperma filifolium

Family: Asteraceae (ass-ter-AY-see-ee) (Info)
Genus: Thelesperma (thel-uh-SPER-muh) (Info)
Species: filifolium (fil-ee-FOH-lee-um) (Info)



Water Requirements:

Drought-tolerant; suitable for xeriscaping

Sun Exposure:

Full Sun

Sun to Partial Shade



This plant is resistant to deer

Foliage Color:

Unknown - Tell us


12-18 in. (30-45 cm)

18-24 in. (45-60 cm)

24-36 in. (60-90 cm)


15-18 in. (38-45 cm)

18-24 in. (45-60 cm)


USDA Zone 5a: to -28.8 C (-20 F)

USDA Zone 5b: to -26.1 C (-15 F)

USDA Zone 6a: to -23.3 C (-10 F)

USDA Zone 6b: to -20.5 C (-5 F)

USDA Zone 7a: to -17.7 C (0 F)

USDA Zone 7b: to -14.9 C (5 F)

USDA Zone 8a: to -12.2 C (10 F)

USDA Zone 8b: to -9.4 C (15 F)

USDA Zone 9a: to -6.6 C (20 F)

USDA Zone 9b: to -3.8 C (25 F)

USDA Zone 10a: to -1.1 C (30 F)

USDA Zone 10b: to 1.7 C (35 F)

USDA Zone 11: above 4.5 C (40 F)

Where to Grow:

Unknown - Tell us


Unknown - Tell us

Bloom Color:

Bright Yellow

Bloom Characteristics:

This plant is attractive to bees, butterflies and/or birds

Bloom Size:

Unknown - Tell us

Bloom Time:

Mid Spring

Late Spring/Early Summer

Blooms repeatedly

Other details:

Unknown - Tell us

Soil pH requirements:

6.6 to 7.5 (neutral)

7.6 to 7.8 (mildly alkaline)

7.9 to 8.5 (alkaline)

Patent Information:

Unknown - Tell us

Propagation Methods:

By dividing the rootball

From seed; direct sow outdoors in fall

Seed Collecting:

Allow seedheads to dry on plants; remove and collect seeds


This plant has been said to grow in the following regions:

Menifee, California

Lone Wolf, Oklahoma

Arlington, Texas

Austin, Texas (2 reports)

San Antonio, Texas

Waxahachie, Texas

Weatherford, Texas

show all

Gardeners' Notes:


On Jul 23, 2005, htop from San Antonio, TX (Zone 8b) wrote:

Also known as stiff greenthread, fineleaf thelesperma, threadleaf thelesperma and Hopi tea, Thelesperma filifolium is a Texas native plant (native to other states as well). The genus Thelesperma is distinctive to North America. It is often found growing in shallow soils, preferring disturbed sites in dry, sandy or gravelly soil with a neutral to basic (alkaline) PH. It adapts to various soil types including loam, clay and caliche. It can be seen growing on open, weedy sites, dry plains, valleys, hills and mesas. In Texas, it can be found growing along roadsides and on dry hills in the South Texas Plains and Edwards Plateau regions. The herb grows over much of the plains and mountain states, reaching up to Wyoming, Montana, Nebraska and South Dakota. It grows prolifically on the Navajo, Hop... read more