Native Milkweeds in Chicagoland (listed by county)

Milkweeds: Native by County-IL

MILKPLANT SPECIES Cook DuPage Kane Kendall Lake McHenry Will All 7 Counties
A. amplexicaulis X X X X X X X 7
A. exaltata X X X X X X X 7
A. hirtella X X X X X 5
A. incarnata X X X X X X X 7
A. lanuginosa X X X X X X 6
A. meadii X X 2
A. ovalifolia X X X X 4
A. perennis
A. purpurascens X X X X X X X 7
A. quadrifolia
A. speciosa X 1
A. stenophylla
A. sullivantii X X X X X X X 7
A. syriaca X X X X X X X 7
A. tuberosa X X X X X X X 7
A. variegata
A. verticillata X X X X X X X 7
A. viridiflora X X X X X X X 7
A. viridis
C. leave X X 2
Total number of species per county 14 12 10 11 12 12 12 15 *

* 15 native milkweed species in the 7 Illinois counties of Chicagoland, 9 of which were ubiquitous.

Source: milkweed@monarchwatch.org

Commonly planted species include Common Milkweed (A. syriaca), Marsh Milkweed (A. incarnata -pictured below), and Butterfly Milkweed (A. tuberosa).  Asclepia tuberosa (pictured at top of page) should only be transplanted in its first year and should always be planted in dry areas.

Marsh Milkplant

Marsh Milkplant (Asclepia incarnata)