Machaeranthera tannacetifolia

Latin Name: Machaeranthera tannacetifolia
Common Name: Tansy Aster, Tahoka Daisy
Mature Height (ft): 12-20"
Mature Width: 12-18"

Mature Shape

Mulch: Inorganic

Plant Type: 

Flower Color: 

Flowering Season: 


Cold Hardiness: 

Heat Zone: 

Ideal Sun Conditions: 

Water Requirement: 

Soil Requirements: 


Tansy aster is an annual native to the Southwest and throughout the Plains even into Canada. Fernlike, or tansy-like (tannacetifolia) light green foliage with beautiful aster-like lavender flowers with yellow disks about 1 1/2 to 2 inches across. Blooms from late spring through fall. A once a month watering will keep the blooms coming throughout the summer. It will keep its compact shape in lean, poor soil but will become much larger in well amended soil. Minimal amending is recommended. Tansy aster is another example of our natives plants giving so much, asking so little in return.

Use in Garden

Anyplace a person wants a bit of cheer is a good spot for tansy aster. Native, cactus and xeric gardens are excellent locations, as well as at the front of a Western cottage garden.