Plant Common Name
A common weedy wildflower across much of the United States, annual fleabane derives its common name from the old belief that its dried daisy flowers repelled fleas. This tall, leggy annual is native across much of North America save the coldest Canadian provinces and Alaska. It is a common pioneer species found in open, disturbed sites as well as old fields, meadows and roadsides.
In spring, this clump-forming annual develops very tall, upright, leafy stems lined with short, lance-shaped, green leaves. By early summer, clusters of small white daisies appear at the branch tips. These have fine, white ray petals and yellow to yellow-green or even pinkish centers. These are pollinated by all manner of insects, including butterflies. The seedheads produce loads of tiny seeds that fall to the ground to germinate the following season.
Annual fleabane is not a wildflower for the garden because it’s simply not that showy and is truly weedy once established. Either way, it grows well in full to partial sun and most any moderately fertile soil with decent drainage. Garden specimens appear by accident and should be readily weeded out.
AHS Heat Zone
10 - 1
3a, 3b, 4, 5, 6, 7, 8, 9, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Full Sun, Partial Sun
2'-5' / 0.6m - 1.5m
10"-18" / 25.4cm - 45.7cm
Summer, Late Summer, Early Fall, Fall
Northeastern United States, Mid-Atlantic United States, Southeastern United States, Central United States, South-Central United States, Northwestern United States, California
Clay, Loam, Sand
Sharp or Has Thorns