| | Date Submitted | City | State/province | Type | Milkweed | Comments |
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View
| 10/27/2025
| Fischer
| TX
| Monarchs
| | Saw at least 12 adult Monarchs! They were feeding on nectar from various plants: Maximilian Sunflower, Frostweed, Plateau/Toothleaf Goldeneye, Drummond's Aster, Shrubby Boneset, Blue Mistflower, and more. |
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View
| 10/6/2025
| Medford
| WI
| Monarchs
| None | At 4:30 pm with temp in mid 70s and 20 mph south wind, 2 adult female Monarchs, one adult male and 2 undetermined adults nectaring on Zinnia. |
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View
| 10/5/2025
| Lebanon
| IL
| Monarchs
| Common Milkweed (Asclepias syriaca) | This location is an abandoned former Trailor Park, that has since become rewilded. It is located at the intersection of Rieder Road and Highway 50, just West of Lebanon, IL.
This time of year, the site is dominated by Tall Goldenrod (Solidago altissima) and Hairy Oilfield Aster, various thistles, etc., along with some Chicory (Cichorium intybus) around the perimeter. I went to collect some Goldenrod and noticed several (between 6 and 9) adult Monarchs flying about the area. I noticed one in particular, that seemed to be feeding on one of the Chicory flowers. |
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View
| 10/6/2025
| Medford
| WI
| Monarchs
| None | From 11:30 am until 3 pm, with temp in low 80s and SSW wind at 20mph, 2 adult female Monarchs and 2 undetermined adults nectaring on Zinnia and 3 undetermined adults nectaring on New England aster. |
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View
| 10/3/2025
| Medford
| WI
| Monarchs
| None | At mid afternoon with temp in low 80s and wind WSW at approximately 10 mph, 2 adult males, 3 adult females and 6 undetermined adults nectaring approximately equally split between New England aster and Zinnia. One undetermined adult departed flying SE. |
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View
| 10/2/2025
| Medford
| WI
| Monarchs
| None | With temp in low 70s, adult female nectaring on Marigold at bout noon departed heading WSW. Another adult 80% certain was female nectared for several minutes on clump of Zinnia and continued to do so as I left. Nectar may be in short supply, as there's been no significant rainfall for approximately 10 days. At approximately 4:45 pm. with temp in upper 70s, 2 undetermined adults, now in partial shade, observed nectaring on same Zinnia clump. |
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View
| 10/3/2025
| Medford
| WI
| Monarchs
| None | At 6:10 pm with temp in mid 70s, an undetermined adult nectaring in partial shade on the same Zinnia clump as those earlier in the day. At 6:15 pm, single undetermined adult nectaring on New England aster in full shade. |
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View
| 10/1/2025
| Wilmington
| DE
| Monarchs
| | An adult monarch was sighted on a young maple tree. |
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View
| 10/1/2025
| Medford
| WI
| Monarchs
| None | Undetermined adult nectaring on Zinnia with temp in upper 70s. |
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View
| 9/29/2025
| Medford
| WI
| Monarchs
| None | Two adults, one female, the other undetermined, nectaring on Zinnia in a flower garden during late afternoon. |
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View
| 9/27/2025
| Medford
| WI
| Monarchs
| None | Dead adult male beside sidewalk with wings folded above and no signs of disease or injury. No pesticide application ever noted at this flower garden site during years of frequent observation. |
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View
| 9/24/2025
| Medfdord
| WI
| Monarchs
| None | Adult female nectaring on hardy Chrysanthemum. Temp about 70 degrees F. |
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View
| 10/5/2025
| Belleville
| IL
| Monarchs
| Common Milkweed (Asclepas syriaca) | At the time of this observation, the location was not yet listed as a survey site. I was just thinking about doing it next year. But when I observed two advanced instar monarch caterpillars on one tired looking milkweed plant, I decided to do a full sight survey for practice. I came back the next day and collected one of the caterpillars to try my hand at raising it. That one was released as an adult today 10/5/2025 This evening I entered the location as a survey site, and plan to survey this location again next year. |
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View
| 10/3/2025
| Medford
| WI
| Monarchs
| None | Adult female Monarch nectaring on hardy Chrysanthemum. Temp about 70 degrees F. |
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View
| 9/22/2025
| Medford
| WI
| Monarchs
| | Sex undetermined nectaring on New England aster in flower garden. |
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View
| 9/19/2025
| Medford
| WI
| Monarchs
| None | Two adults, one male, one undetermined, feeding at flower garden during mid afternoon at lat/long above. |
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View
| 9/16/2025
| Lebanon
| IL
| Monarchs
| Common Milkweed (Asclepias syriaca) | This area was Pasture Land for many years. More recently it has been mowed for Hay production, but for the last two years it has become so overrun with Horsenettle (Solanum dimidiatum) that it was no longer considered useful for feed Hay, and has just been only mowed just one time each summer. It was last mowed in mid July. I have been wandering around in this field and observing Monarch Larva off and on throughout this summer. |
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View
| 9/18/2025
| GRANITE QUARRY
| NC
| Monarchs
| MEXICAN ASCLEPIAS | NO DETAILS BEYOND ABOVE |
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View
| 9/8/2025
| Arvada
| CO
| Monarchs
| | 1 monarch on my Joe Pye Weed |
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View
| 9/6/2025
| Orange
| CA
| Monarchs
| Califnornia Native | Hello!
Just wanted to chime in that my Monarch Waystation picked up some activity this month in my own little backyard. I have 10 pupae and 2 5th Instars, some tachnid fly casualties but otherwise these are the only caterpillars I've received from this stray female.
Hopefully they turn into monarchs within the next two weeks! |
|
View
| 9/4/2025
| San Diego
| CA
| Monarchs
| Tropical Milkweed | Initially discovered 4 eggs on this plant which is a new growth after being cut back about a month ago. 3 were observed as 1st instars. 2 in 2nd instar. This lone surviving 5th instar monarch caterpillar was observed returning from leaf litter to feed around 5pm for a couple minutes before walking back into the leaf litter and climbing onto a twig about 6inches away from the milkweed plant. He/she has been motionless on the twig for 1.5 hours, and increasingly limp with droopy antennas. |
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View
| 9/4/2025
| San Diego
| CA
| Monarchs
| Tropical Milkweed | Initially discovered 4 eggs on this plant which is a new growth after being cut back about a month ago. 3 were observed as 1st instars. 2 in 2nd instar. This lone surviving 5th instar monarch caterpillar was observed returning from leaf litter to feed around 5pm for a couple minutes before walking back into the leaf litter and climbing onto a twig about 6inches away from the milkweed plant. He/she has been motionless on the twig for 1.5 hours, and increasingly limp with droopy antennas. |
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View
| 9/3/2025
| GRANITE QUARRY
| NC
| Monarchs
| MEXICAN ASCLEPIAS | ABOUT 1/2 HAVE STARTED TO SEARCH FOR PUPATE SITES |
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View
| 8/28/2025
| Wilmington, DE
| DE
| Monarchs
| Asclepias incarnata | We were performing maintenance in our pollinator garden, which is not included in our MLMP site borders, but will be next year. Swamp milkweed was examined out of curiosity with successful results! One 3rd instar was found on a tree sprout that had popped up next to the milkweed so we transferred it back over. The plants weren't thoroughly checked so eggs and 1st instars could have been present also. |
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View
| 8/26/2025
| Blowing Rock
| NC
| Monarchs
| Swamp milkweed | One pupa is beginning to lose its green. The remaining three are still green pupa. |
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View
| 8/25/2025
| Dalton
| GA
| Monarchs
| Swamp milkweed | First observed caterpillars this morning on the swamp milkweed in my backyard garden. They were actively feeding. I will continue monitoring. Please call, text, or email if you would like photos. |
|
View
| 8/26/2025
| Muskegon
| MI
| Monarchs
| common milkweed | I saw 2 caterpillars on my property in my monarch way station. This is my second year of my way stations life. |
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View
| 9/8/2025
| Arvada
| CO
| Monarchs
| | 2 monarchs, on my native sunflowers and my red Jupiter's beard |
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View
| 9/8/2025
| Arvada
| CO
| Monarchs
| | One, on my native sunflowers |
|
View
| 8/14/2025
| Madison
| VA
| Monarchs
| A. syriaca | Saw 2 monarchs nectaring on different plants and one female ovipositing. |
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View
| 8/11/2025
| Apple Valley
| MN
| Monarchs
| | Monarch on my milkweeds in front of the house |
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View
| 8/11/2025
| Cheyenne
| WY
| Monarchs
| I don't know. | Healthy eaters |
|
View
| 9/3/2025
| Bath Township
| MI
| Monarchs
| Common milkweed | I checked 10 common milkweed and 1 swamp milkweed. The swamp milkweed had 0 monarchs. The rest applies to common milkweed. The phrase "Milkweed species on which monarchs were observed" is confusing, so I excluded swamp milkweed in that descriptor. |
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View
| 8/10/2025
| Apple Valley
| MN
| Monarchs
| | Geo code not working. Monarch spotted over patio of residence |
|
View
| 8/11/2025
| Holderness
| NH
| Monarchs
| common milkweed | Unlike the two sites I have been monitoring all summer, this field was mowed mid-summer and there is new crop of healthier looking milkweed than in the garden and preserve I am monitoring. I did not inspect the milkweed as thoroughly or exhaustively as I do at the other sites because I was not prepared. I was in sandals and shorts and there is poison ivy everywhere amidst the milkweed. There were probably more eggs and other stage instars that I missed. |
|
View
| 8/6/2025
| Grantham
| NH
| Monarchs
| | We collected 3 caterpillars on June 27th. Our first emerged and was released today |
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View
| 8/6/2025
| Downsville
| NY
| Monarchs
| | Observed Monarch on butterfly weed plant. |
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View
| 8/4/2025
| Medford
| WI
| Monarchs
| A. syriaca | Small milkweed colony beside rear wall of garage in alley. |
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View
| 8/3/2025
| Lewe
| DE
| Monarchs
| Asclepias incarnata | There are four tuberosa and two incarnata plants in this small garden. All the caterpillars were on the incarnata. The tuberosa is producing pods now, and the leaves don't appear as fresh as earlier in the season. |
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View
| 8/3/2025
| Oxford
| PA
| Monarchs
| common, swamp, butterfly weed, purple, aquatic, whorled | Abundant year for larva and adult butterflies. Nectaring' on purple vervain, bee balm and others. |
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View
| 8/2/2025
| Gaithersburg
| MD
| Monarchs
| | Eggs appeared to have been freshly laid. I will monitor these daily. |
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View
| 8/2/2025
| KANSAS CITY
| MO
| Monarchs
| Swamp | Caterpillar appeared sluggish and wasn't eating. |
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View
| 8/6/2025
| Watertown
| WI
| Monarchs
| Swamp Milkweed | I’ve raised 4 healthy monarchs in an outside habitat as well as these numbers above. All were found on the milkweed I planted last year. These four caterpillars were 4th and 5th Instars when I found them at beginning of June 2025 and into July 2025. Thank you for your time. |
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View
| 8/1/2025
| Lexington
| KY
| Monarchs
| common | other plants in bloom include ironweed, Queen Anne's lace, black-eyed susan; milkweed tussocks were abundance in one area |
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View
| 8/1/2025
| Wantagh
| NY
| Monarchs
| Asclepias syriaca | The milkweed is growing in my backyard. In 2023 I gathered and planted a few seed pods from milkweed growing at the side of the road at the corner of Farmers Blvd and Conduit Ave. South in Queens, N.Y. 11434 (Latitude: 40.66601 | Longitude: -73.767837). This is the first year that I have found monarch eggs on the plants. I also observed a monarch butterfly briefly perching on the bottoms of leaves on 7/30/25. |
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View
| 8/2/2025
| Mundelein
| IL
| Monarchs
| Common milkweed, Butterflyweed, Purple milkweed, Swamp milkweed, Red milkweed | Nothing further to report. |
|
View
| 9/23/2025
| Millerton
| NY
| Monarchs
| Asclepias incarnata, swamp milkweed | This is an observation of the 4 asclepias incarnata specimens in my front garden (south facing) and side garden (east facing). I wanted to report this info because this is way more caterpillars at any one time than I found last year on the same 4 specimens. Also of note is that ~7 of them (I'm reporting this after the fact so not positive the exact number, but at least half) were on a single specimen in my front garden. This specimen was swarmed with caterpillars all season, whereas the 2 specimens in my side garden were hardly touched. The milkweeds were purchased a few years ago from two different vendors; two were purchased from a nursery in Michigan, and the other two from a local nursery that sells local ecotypes grown from collected seeds. I wonder if this could have any bearing on the discrepancy, or if it's more about the location within the garden. I'm going to plant a seedling of the favorite specimen in another part of the garden to see if it also gets more attention from the monarchs. |
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View
| 7/31/2025
| Blue Bell
| PA
| Monarchs
| Common | One observer monitoring for Milkweed Monitoring Blitz |
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View
| 7/31/2025
| Oxford
| PA
| Monarchs
| Common, butterfly weed, swamp milkweed, purple milkweed, aquatic milkweed, whorled milkweed | Heavy thunderstorms so adult monarchs mostly holding on and not flying. Many larva on devirse milkweed speciies |
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View
| 7/31/2025
| North Wales
| PA
| Monarchs
| Common and Swamp | 8 people monitoring for Monarch Monitoring Blitz |