Chicago Nature NOW! Alert
May 27, 2023
“Weekly Wildflower Forecasts Featuring
Chicago’s Best Weekend Getaways & Nature Trips”
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Be on the lookout for spectacular flower shows
taking place in our showcase prairies, savannas, and woodlands.
WILDFLOWER FORECAST & HIGHLIGHTS to help you plan your outdoor adventures into Chicago’s Woodlands:
The magnificent world-class flowers shows of wild lupine and shooting star usually take place around this time. But nature isn’t just about flowers. It’s about the experience. Explore and discover a preserve from the list below. Be open to nature’s unexpected gifts, whether it be a colorful, awe-inspiring bloom, the mysterious squeak of two rubbing trees mimicking the cry of a baby animal, or the life-affirming odor of skunk cabbage. All of these things will open up your life to a world of wonder and intrigue.
At this time in May, the big shows often come from shooting star and wild lupine. At Chiwaukee Prairie, shooting star covers the grassland pink with touches of yellow star grass, birdfoot violet, and golden Alexander. It’s absolutely spectacular. You can also experience their celestial beauty at Fermilab Prairie, Shoe Factory Road Prairie, and Somme Prairie Grove. At Miller Woods at Indiana Dunes National Park, the show of wild lupine is unbelievably beautiful, as the blues and purples drape across the rolling dunes sprinkled with golden hoary puccoon. Wow! Within the national park, they also bloom at Tolleston Dunes, and West Beach, but the blue-and-white blossom also shows up at Illinois Beach Nature Preserve and Chiwaukee Prairie.
The aforementioned blossoms of hoary puccoon may be found in our prairies and oak savannas, including Somme Prairie Grove, Shoe Factory Road Prairie, Pembroke Savanna, Belmont Prairie, Miller Woods, and usually a little later at Illinois Beach Nature Preserve and Chiwaukee Prairie. And the sparkling sprays of golden Alexander (our Plant of the Week) put on nice performances at Shoe Factory Road Prairie and Chiwaukee Prairie.
The ephemeral melting blooms of Ohio spiderwort often get their start in late May. Click here to read my poem about it. They melt hearts around Chicago as they begin their monthlong show. You can find them at many preserves around the area.
It still may be possible to see woodland shows of woodland phlox and wild geranium alongside hidden blossoms of mayapple. The large waxy white blossoms of mayapple should be flowering by now. To find them, look beneath the umbrellas of two-leafed plants. And the sublime light-blue plumes of wild hyacinth are usually aflower at this time in some of our savannas and woodlands, including Wolf Road Prairie, Black Partridge Woods, and Oldfield Oaks in Darien.
In late May and early June, look for a fantastic show of sand coreopsis in the sand prairie at Illinois Beach Nature Preserve in Zion. This performance of coreopsis is so dramatic that my picture of it was featured in the world famous 2020 Sierra Club Wilderness Wall Calendar (see photo section).
SPRING WILDFLOWER GETAWAYS AROUND CHICAGO:
I’ve ranked the preserves on this week’s list based on the information predicted by my one-of-a-kind propriety database of wildflowers blooming events, starting out with the best or “Go!” The “Go, if You’re in the Neighborhood” section is for sites that are worth visiting if you can’t make it to the top-rated preserves.
LIKELY, THIS WEEK’S BEST CHOICES (“GO!”):
Miller Woods in Indiana Dunes National Park: The spectacular show of wild lupine can reach peak bloom somewhere from mid to late May. It’s a must-see event. Adding the to the blue hues are the sublime blue-eyed grass and birdfoot violet. The vibrant yellow blooms of hoary puccoon add a golden sparkle to the savanna as the buttery blooms of wood betony end their run. The red-and-yellow blossoms of wild columbine float above the understory of the savanna. And flashes of white come from wild strawberry and bastard toadflax. Keep your eyes open, and you may even find the gorgeous red Indian paintbrush. While you’re here, take the trail to the lakeshore. Along the way, the path crosses a wide gravel path that goes straight east-west. Head west, and you’ll find beaver lodges and activity. If you arrive early or remain late in the day, chances are you’ll be greeted by a beaver slapping its flat tail against the water to alert others of its kind about that human lurking about. This abandoned railroad right-of-way isn’t as intimate as the official narrow trail, but I like the views better. After your hike, consider checking out the lupines at Tolleston Dunes and West Beach. NOTE: The trail can be covered in water in some areas. We recommend high boots. Or just slosh on through!
Chiwaukee Prairie in Pleasant Prairie, Wisconsin: This prairie-by-the-lake puts on a stunning show of shooting star that takes place sometime between mid-May and early June, joined by a colorful cast: hoary puccoon, golden Alexander, wood betony, yellow star grass, blue-eyed grass, birdfoot violet, and wild strawberry. You may find some wild lupine along the edges. And the occasional fluffy seed heads of common cottongrass help to brighten up the wetlands. If you’re lucky, you just may find patches of yellow Indian paintbrush. While you’re here, you should definitely visit Illinois Beach Nature Preserve in Zion, which is easily provides the best nature experience in the region.
Somme Prairie Grove in Northbrook: By this time in May, this preserve really starts to shine. In the woodland, you might experience beautiful displays of golden Alexander with its yellow flat-topped umbrellas. Also under the trees are the flat-topped white flowers of cow parsnip, which is a little toxic and can irritate the skin. So, no touchy-feely with this plant. And you may find the final blooms of wild geranium and wild hyacinth. Under the sun, you may see a variety of flowers, including golden balsam ragwort, ivory buttons of bastard toadflax, the occasional shooting star, the delicately elegant stout blue-eyed grass, and the heart-stopping red Indian paintbrush. Wow! Along the way, look for the beautiful creamy blooms of cream wild indigo. And don’t forget to appreciate the lush green textures that come from the foliage of forbs, sedges, and grasses, including the floppy hairdos of prairie dropseed and the heart-shaped leaves of prairie dock. This is also the time of year to experience blue flag iris and yellow water buttercup in the wet areas.
Shoe Factory Road Prairie in Hoffman Estates: Though not officially a hill prairie, this gravelly prairie on a hill gets a lot of sun and also a lot of wildflowers. This is usually a good time to see large patches of golden Alexander and hoary puccoon, possibly growing amidst the remaining blooms of wood betony, shooting star, birdfoot violet, and blue-eyed grass.
Illinois Beach Nature Preserve in Zion: This is usually the time to experience vibrant shows of wild lupine, hoary puccoon, and downy phlox. For best performances, take the wide gravel trail (Dunes Trail) that head heads south from the parking lot. The lupines aren’t nearly as dramatic as at Miller Woods, but this preserve is a dream. Along the way, you’ll may also see the delightful blue-eyed grass, little white sparkles of sand cress and sandwort, and the red glow of red Indian paintbrush. And while you’re here, consider visiting nearby Chiwaukee Prairie. The brilliant yellow flowers of sand coreopsis may now be blooming, which is one of the region’s most dramatic performances. In open shade of the black oak savanna, look for the buttery yellow blooms of the occasional western goat’s beard along with the three-petaled blossoms of Ohio spiderwort, but the flower doesn’t last long. Each morning, a few buds open to reveal fresh blue flowers that dissolve in the heat of the day into drops of purple liquid. Along the way, you’ll also find the delightful blue-eyed grass, little white sparkles of sand cress and sandwort, and the red glow of red Indian paintbrush. And while you’re here, consider visiting nearby Chiwaukee Prairie
Black Partridge Woods in Lemont: The spring wildflower season ends in May with shows of woodland phlox, mayapple, wild hyacinth, and wild geranium. The greatest densities of the latter two plants can be found atop the bluffs. It’s also a dreamy time to experience the lushness of the woodland. It’s so green—from the new leaves of the tiered tree canopy to the dense carpet of foliage on the woodland floor. Thanks to wild ginger that has fully leafed out, you can hardly see the ground beneath. I love the miniature forests of mayapple with their parasol-shaped leaves where you may still be able to find a lonesome waxy white blossom hiding under the plants with two umbrellas. Exciting patches of acrobatic skunk cabbage leaves add to the whimsy. Wild leek‘s emerald swords put up a defense, along with the star-like leaves of wild geranium. And look for the floating filigreed foliage of early meadow rue. A smattering of white and pink shooting star may also be found on the bluffs above. And if woodland phlox is still aflower, note its gorgeous fragrance. If you find a larger patch of phlox, you may not even have to put nose to petal to detect its fabulous scent. The combination of woodland phlox, wild geranium, and shooting star is wonderful sight.
Wolf Road Prairie in Westchester: Late May usually starts the monthlong performance of Ohio spiderwort along the southeast edge of the preserve near Wolf Road. However, those flowers will be gone by afternoon, especially if it’s hot. In the prairie, you’ll also find a small mix of other flowers including hoary puccoon, golden Alexander, downy phlox and daisy fleabane. I particularly love the emerging tones and textures of prairie dock, rattlesnake master, and compass plant. By late May, you may still find the fading blooms of wood betony, starry false Solomon’s seal, wild hyacinth and wild geranium.
“GO, IF YOU’RE IN THE NEIGHBORHOOD”:
Raccoon Grove Nature Preserve in Monee: I love this place for its springtime lushness. In late May, you may still find still find some displays of pink wild geranium and blue woodland phlox. But you’ll most likely see dramatic plumes of false Solomon’s seal scattered across the rolling verdant landscape. The foliage on the woodland floor has fully matured as the trees are pushing out fresh delicate leaves in the canopy overhead. Spread across the woodland floor are the jade hues and lush patterns of wild leek, mayapple, and the omnipresent wild ginger.
Fermilab Prairie in Batavia: In late May, the prairie is usually aflower with golden Alexander and shooting star.
Bluff Spring Fen in Elgin: The most prolific blooms may be happening under the sun with shining displays of balsam ragwort and golden Alexander. Then add to that the brilliant yellow blossoms of hairy puccoon. You may also find ivory tones from bastard toadflax in the prairie and fluffy plumes of common cottongrass in the soggy areas.
Belmont Prairie in Downers Grove: In May, this intimate remnant prairie awakens with golden bouquets of hoary puccoon. Ohio spiderwort may have also started.
Johnson’s Mound Forest Preserve in Elburn: This intimate preserve is known for its ravines and the flowers that cross the braes. In late May, you may still find some displays of pink wild geranium and blue woodland phlox amidst the white blooms of mayapple. But the odds are that they’ve all faded away by now.
Powderhorn Marsh & Prairie in Chicago: You may find a mixture of spiderwort, hoary puccoon, and golden Alexander in the prairie. This high-quality preserve is our only showcase preserve located inside the city of Chicago.
PLANT OF THE WEEK (Golden Alexander):
Golden Alexander of species Zizia aurea appears to have large flowers, but what you are seeing is a cluster of miniature one-eighth-inch blooms. The pollen and nectar of the flowers benefit insects with short mouthparts. The plant grows in both high-quality and degraded habitats. The golden blooms can be found brightening up the panoramas at preserves that include Somme Prairie Grove, Shoe Factory Road Prairie, Wolf Road Prairie, and Chiwaukee Prairie.*
In May at Chiwaukee Prairie, golden Alexander blooms amidst the heart-shaped leaves of prairie dock.*
Green glow describes leaves that glow a bright green from sunlight shining through them. Here, we see a special kind of green glow that results in a shadow play, as sunlight shines through a translucent leaf of prairie dock, as golden Alexander casts its distinctive silhouette.*
PHOTO SECTION
Shooting Star:
In May, the beautiful blooms of shooting star can be found in prairies and woodlands, alike. The shape of the flower belies its celestial name, with five petals that trail behind its pointed tip. This springtime plant favors soil that is moist to modestly dry, but can thrive on the sunny slopes if there’s enough rain. It seems to like slopes because it doesn’t get as much competition there. The plant is also sensitive to dead vegetation that can smother it, which is why it also favors the occasional fire.*
Early to mid-May brings scenes of shooting star and woodland phlox to the bluffs of Black Partridge Woods in Lemont, Illinois.”
On this May evening, shooting stars glowed in the final light of day at Fermilab Prairie in Batavia, Illinois.*
Shooting Star at Chiwaukee Prairie:
Later in May and sometimes into early June, Chiwaukee Prairie offers a spectacular display of shooting star.*
Shooting star, hoary puccoon, yellow star grass, and others are blooming in profusion at Chiwaukee Prairie in Pleasant Prairie, Wisconsin. You can also find the plant at Black Partridge Woods, Shoe Factory Road Prairie, Fermilab Prairie, and Somme Prairie Grove.*
Wild Lupine:
Wild lupine, of species Lupinus perennis, seems to love poor soil. However, in ancient times, it was believed that the lupines were creating the bad soil by wolfing down the nutrients. Hence, the name comes from the Greek word “Lupus,” or “wolf.” In reality, lupine brings nutrients to the soil just like other legumes, such as leadplant, white wild indigo, scurfy pea, and purple prairie clover. Around Chicago, lupine can be found growing in sandy soil under the trees of black oak savannas, including Miller Woods, part of Indiana Dunes National Park and Illinois Beach Nature Preserve in Zion.
Atop this spring dune thrives wild lupine at Miller Woods, part of Indiana Dunes National Park in Gary, Indiana. While you’re in the park, you also can find them at Tolleston Dunes, and West Beach.*
Biodiversity is about the many, not the few. Here, it’s springtime in the savanna at Illinois Beach Nature Preserve, where blue lupines share precious space with hoary puccoon. But, as the season advances, both will fade, making room for an array of other species, in a cycle where each has its time in the sun and then returns to the soil.*
An exploration into the inner world of wild lupine.
Wild Hyacinth:
Wild hyacinth at Wolf Road Prairie in Westchester, Illinois.*
Each May, wild hyacinth blooms in woodlands and oak savannas across the Chicago region including, here, at Wolf Road Prairie in Westchester, Illinois.*
Each May, wild hyacinth blooms in woodlands and oak savannas across the Chicago region including, here, at Wolf Road Prairie in Westchester, Illinois.*
Starry False Solomon’s Seal:
The geometric beauty of starry false Solomon’s seal at Wolf Road Prairie in Westchester, Illinois.*
Wood Betony:
Wood betony (Pedicularis canadensis) is also known as lousewort because it was erroneously thought to bring lice to grazing sheep and photographers who get too close. For some of its nutritional needs, the plant uses its roots to feed off of grasses, mycorrhizal fungi, and possibly other plants. I said “some” nutritional needs. Therefore, that plant is a parasite, but only partially so. Hence, it’s a hemi-parasite, more of a nibbler, as opposed to a full-fledged sap-sucking parasite. Though the leaves at the base exude a beautiful reddish tone, the green color above is the giveaway. The verdant hue shows that it’s not totally lazy, and creates its own energy through sunlight and chlorophyll production. In fact, wood betony can grow just fine even when its host plants aren’t around. Due to its nibbling nature, wood betony is known to stunt the growth of surrounding grasses. This is why it’s sometimes used in habitat restoration to quell the aggressiveness of towering grasses. In May, wood betony blooms in the best open woodlands, prairies, and savannas, like Black Partridge Woods, Bluff Spring Fen, Shoe Factory Road Prairie, Fermilab Prairie, Chiwaukee Prairie, Illinois Beach Nature Preserve, and here at Somme Prairie Grove in Northbrook, Illinois.*
On this May morning at Shoe Factory Road Prairie, wood betony awakens to the light of a red sunrise.*
Usually in early May, wood betony blooms atop the bluffs at Black Partridge Woods in Lemont, Illinois.*
Woodland Phlox:
Many of our featured woodlands are home to the blue or purple, and sometimes, white woodland phlox of species Phlox divaricata laphamii, including here at Black Partridge Woods where they flow in a serpentine wave up the bluff. From a distance, the flower appears to have five petals. But it only has one deeply lobed petal. But because the petals of a flower are collectively known as the corolla, the plant is said to have a five-lobed corolla. The flowers have a beautiful fragrance that I easily detect from several feet away, though pushing your nose into the corolla would give you a much better view of its intricacies. You can also find beautiful displays of this plant at woodlands, like Fermilab Natural Areas, Johnson’s Mound, and Raccoon Grove.*
Hoary Puccoon:
At Shoe Factory Road Prairie, hoary puccoon and birdfoot violet glow in the morning light at this prairie-on-a-hill.*
The golden blooms of hoary puccoon can be found, here, at Illinois Beach Nature Preserve and many other preserves around the region including Miller Woods, Powderhorn Marsh and Prairie, Wolf Road Prairie, Gensburg-Markham Prairie, and more.*
Blue Flag Iris starts to bloom in the late May:
Blue flag iris is a wetland plant that grows in standing mud or standing water. Here, a phalanx of blue flag iris towered over the spring wetland at Somme Prairie Grove in Northbrook.*
Blue flag iris blooms in the late-May wetland at Spears Woods in Willow Springs. But you can see it in good wetlands throughout the area.*
Foxglove Beardtongue usually begins in late May:
In June, foxglove beardtongue blooms at Bluff Spring Fen in Elgin and many other preserves. In the fall, the seeds smell EXACTLY like vomit! Be still my heart.*
Sand Coreopsis:
In a celebration of life, blooms of sand coreopsis spread their golden joy along the banks of the Dead River at Illinois Beach Nature Preserve in Zion.*
The turning earth is the dimmer switch, gradually recasting every dim dewdrop, petal, and blade of grass into a galaxy of blazing bulbs and lustrous lamps. On this late-spring morning at Illinois Beach Nature Preserve, blooms of golden sand coreopsis and New Jersey tea are set aglow alongside shimmering spider webs that cling to last year’s grasses.*
Ohio Spiderwort and its Melting Flowers:
In late May or early June, Ohio spiderwort begins a performance that will last a month or longer, starring a cluster of buds that releases only a couple of flowers each day. Each morning, a new bud opens into a delicate blue or purple flower. You may find spiderwort, right now, at Wolf Road Prairie, Belmont Prairie, Bluff Spring Fen, Pembroke Savanna, Powderhorn Prairie, Miller Woods, Illinois Beach Nature Preserve, and more.
As the day wears on, each blossom begins to wither—then miraculously melts into a gem of royal jelly. An enzyme in the flower causes it to slowly decompose, and hot weather speeds up the process. It’s noon, and this flower is already shriveling.*
By midafternoon, this spiderwort bloom was melting blue between my fingertips. Do you notice my purple fingers? I was arrested earlier that morning.
This is the scene from Wolf Road Prairie, as blossoms of Ohio spiderwort open to meet the new day.*
At Miller Woods (Indiana Dunes National Park), spiderwort and ferns cover the side of the dunes.*
Wild Columbine:
Wild columbine reflects the afternoon light at Miller Woods in Indiana Dunes National Park.
Indian Paintbrush:
Here at Illinois Beach Nature Preserve, Indian paintbrush brightens up the foggy morning landscape. You can also find this flower at Gensburg-Markham Prairie and Somme Prairie Grove.*
Sand Phlox:
Sand phlox of species of Phlox bifida bifida (no I didn’t stutter) has one white or pale blue-violet corolla, which is a collection of petals. But in this case, there’s only one petal with five Y-shaped lobes. As the common name suggests, this plant is often found growing in sandy soil, but it can handle mesic earth as well. This pictured colony of sand phlox surrounds a soft, sandy mound that was made by the burrowing plains pocket gopher in the black oak savanna of Pembroke Savanna Nature Preserve.*
Wild Geranium:
You can find wild geranium in all of our featured “sandless” woodlands and at many other preserves across the Chicago region. Here at Black Partridge Woods in Lemont, the pink flower hovers above their celestial star-shaped foliage.*
At Raccoon Grove, as evening nears in this beautiful spring woodland, the final streaks of sunlight penetrate the emerald canopy. The shining rays highlight the broad leaves of false Solomon’s seal and animate the soft, pink blooms of wild geranium, making all that is illuminated stand apart from the surrounding foliage.*
May brings glorious displays of wild geranium to Oldfield Oaks in Darien, Illinois, part of Forest Preserve District of DuPage County.*
Stout Blue-Eyed Grass
The sublime blooms of stout blue-eye grass may now be aflower at Pembroke Savanna in Hopkins Park, Illinois. And they bloom at these other preserves: Illinois Beach Nature Preserve, Chiwaukee Prairie, Miller Woods, and Somme Prairie Grove.*
Mayapple:
In woodlands across northeastern Illinois, like here at Black Partridge Woods in Lemont, April showers bring out the umbrellas in the form of mayapples. And the white flowers of false rue anemone sparkle like raindrops. *
Wild Ginger:
The green foliage is the star of the springtime show. Here you see the heart-shaped leaves of wild ginger alongside a single blooming mayapple. The flowers of both plants can be found hiding beneath the leaves. All of our featured woodlands feature both of these plants.*
Large-flowered Trillium:
At Heron Rookery Trail in Indiana Dunes National Park, large-flowered trillium is a site to behold.*
Large-flowered trillium of species Trillium grandiflorum covers the woodland floor in a spectacular annual display at J. Timothy Ritchie Nature Preserve in Chesterton, Indiana. This is not on our list of showcase preserves, but it’s a wonderful supplement to your visit to nearby Heron Rookery Trail.*
Sometime between mid-April and early May, large-flowered trillium will appear at Messenger Woods in Homer Glen. Their bloom usually coincides with that of Virginia bluebell.*
Large-flowered trillium carpet the floor of Captain Daniel Wright Woods in Mettawa, Illinois.*
The blooming in the northern suburbs lags behind the southern ones, so it takes a little longer for the large-flowered trillium to appear at Captain Daniel Wright Woods in Metawa, and here, at Harms Woods in Glenview. Notice how the flowers turn pink as they fade.*
Skunk Cabbage:
It’s springtime at Pilcher Park and sunlight shines through the enormous fanning foliage of skunk cabbage which, if broken, releases a strong scent reminiscent of skunk, though sweeter and not nearly as overpowering. If you’re someone like me, who finds the powerful essence of skunk to be an invigorating and life-affirming experience, the skunk inside the cabbage will definitely let you down. You’ll find many at Pilcher Park Nature Center, Black Partridge Woods, Bluff Spring Fen, Trout Park, and O’Hara Woods.*
If you find this website of Chicago nature information useful, please consider donating or purchasing my nationally-acclaimed book that celebrates all of the preserves featured on this website.
—Mike
