Native Milkweeds in Chicagoland (listed by county)

Milkweeds: Native by County-IL

MILKPLANT SPECIESCookDuPageKaneKendall LakeMcHenryWillAll 7 Counties
A. amplexicaulisXXXX XXX7
A. exaltataXXXX XXX7
A. hirtellaXX   XXX5
A. incarnataXXXX XXX7
A. lanuginosaXXX  XXX6
A. meadiiXX      2
A. ovalifoliaX  X XX 4
A. perennis         
A. purpurascensXXXX XXX7
A. quadrifolia         
A. speciosaX       1
A. stenophylla         
A. sullivantiiXXXX XXX7
A. syriacaXXXX XXX7
A. tuberosaXXXX XXX7
A. variegata         
A. verticillataXXXX XXX7
A. viridifloraXXXX XXX7
A. viridis         
C. leave   X   X2
Total number of species per county14121011 12121215 *

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

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Swamp milkweed closeup

Marsh milkweed (Asclepia incarnata)

Commonly planted species include Common Milkweed (A. syriaca), Marsh Milkweed (A. incarnata -pictured here), 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.