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Observations by Gary Fewless for Green Bay WI (Lat.N 44.51° Long. W 88.02° ), except as noted. For flowers lacking conspicuous petals or sepals I define "anthesis" as release of pollen by mature anthers.

June 2003

Observations by Gary Fewless, except as noted

Date Observation (Click on links for photos)
June 30

Chicory (Cichorium intybus) in flower, City of Green Bay. I saw a single open flower in Allouez 06/28. Watch for this species to become highly visible in the next few days (Gary Fewless).

Black-eyed susan (Rudbeckia hirta), broad-leaf enchanter's-nightshade (Circaea lutetiana), mayweed (Anthemis cotula) and tall anemone (Anemone virginiana) in flower, UWGB (Gary Fewless).

I saw the first little American Toads of this year leaving ponds for the surrounding fields, UWGB. They often suffer very high mortality in this period. (Gary Fewless).

June 29 Colonial bentgrass (Agrostis tenuis) and yellow avens (Geum aleppicum) in flower (anthesis), UWGB (Gary Fewless).
June 28

Whorled yellow loosestrife (Lysimachia quadrifolia), Snowberry (Symphoricarpos albus) in flower, Marinette County (Gary Fewless).

Sowthistle (Sonchus arvensis) in flower, City of Green Bay (Gary Fewless).

Green Bay received 0.78 inches of rain, mostly in the morning.

June 27 Shin-leaf (Pyrola elliptica), Canada thistle (Cirsium arvense), white avens (Geum canadense) in flower, UWGB. Narrow-leaved cattail (Typha angustifolia) and broad-leaved cattail (Typha latifolia) also in flower (anthesis). (Gary Fewless).
June 26 Cedar Waxwings that frequented our mountain ash trees in the Lenfestey Courtyard last summer, have returned and are eating the young fruits in spite of the fact that they are very green (Vicki Medland).
June 25

Clasping dogbane (Apocynum sibiricum) and planted individuals of northern catalpa
(Catalpa speciosa) in flower, UWGB (Gary Fewless).

Ground-cherry (Physalis heterophylla) in flower, Brown County, Bellevue (Gary Fewless).

The dispersal of fruits (the "cotton") of cottonwood(Populus deltoides) trees is essentially over for the year on UWGB. The peak period lasted only about 10 days. (Gary Fewless).

June 24

A high temperature of 88F and humid air continue to produce a small "heat wave" in the Green Bay area. It's been my experience that our heat and humidity is not significantly different in intensity from that in more tropical/subtropical areas, but our saving grace is that hot and humid weather generally is doled out in relatively small doses. One more day is forecast (Gary Fewless).

Common milkweed (Asclepias syriaca), false sunflower (Heliopsis helianthoides), staghorn sumac (Rhus hirta = R. typhina previously) and common St. John's-wort (Hypericum perforatum) in flower, UWGB (Gary Fewless).

Canada anemone (Anemome canadensis), listed as flowering on this page June 3, is just now prominent in my area. I'm sure it started at least a few days ago, but even so, there seems to be a real difference in phenology between areas. In part, I'm sure it's because of previous rains, which made our heavier clay soils very slow to warm up during our cool, protracted spring, Town of Cooperstown, Manitowoc County (Joel Trick).
[An excellent observation from a long-time observer of phenology and one of the best field biologists in the area. For those new to phenology, it is important to remember that there is no one date for any phenological item that holds true across even a relatively small area. The actual date of flowering of a plant species, for example, can vary significantly from one site to the next for a variety of reasons including, soil type, slope, moisture content of the soil, competing vegetation, over-arching canopy of adjacent plants, health of the individual plants (including growing conditions of this and even previous years) and there may also be a component related to the genetic endowment of individuals.
A good example of variation in flowering date is the tendency for some species to flower earlier in the north on sandy, well-drained soils than they do on heavier, wetter soils farther to the south. This seems to arise from the tendency of well-drained sandy soils to warm earlier than heavier soils with higher clay content which stay wet longer in spring (Gary Fewless)]

June 23

Gray dogwood (Cornus racemosa), black elderberry (Sambucus canadensis) and motherwort (Leonurus cardiaca) in flower, UWGB (Gary Fewless).

Hottest day of the year so far in Green Bay, 87F, hot and humid.

June 21 American figwort (Scrophularia lanceolata) in flower, Florence County (Gary Fewless). [note: there are a few late entries for the 17th-20th]
June 20

Spreading dogbane (Apocynum androsaemifolium) in flower, UWGB (Gary Fewless).

Tall crowfoot (Ranunculus acris), Alfalfa (Medicago sativa) in flower, Brown County (Gary Fewless).

June 18

Annual fleabane (Erigeron annuus), sweet flag (Acorus americanus) and white pine (Pinus strobus) in flower, UWGB (Gary Fewless). The only white pine for which I could reach flowers started 6/18. The tree is planted so its origin is not known. Red pin and jack pine started about the end of May.

June 17

Crown vetch (Coronilla varia), and tall meadow-rue (Thalictrum dasycarpum), garden-heliotrope (Valeriana officinalis), common spiderwort (Tradescantia ohioensis) in flower, UWGB (Gary Fewless).

Nodding thistle (Carduus nutans) in flower, City of Green Bay (Gary Fewless).

First lightning bugs seen this evening, Town of Cooperstown, Manitowoc County (Joel Trick).
[I have yet to see a lightning bug in my usual Brown County site, where we often see them toward the end of the first week in June, and as early as 0527. I did see them earlier this year in Florence County, June 4, but that may well have been a different species (Gary Fewless)].

June 16 Field bindweed (Convolvulus arvensis) and quack grass (Agropyron repens) in flower, Allouez (Gary Fewless).
June 15 Cottonwood (Populus deltoides) conspicuously dispersing fruit, reed canary grass (Phalaris arundinacea) and smooth brome (Bromus inermis) in flower (anthesis), pasture rose (Rosa blanda), northern bedstraw (Galium boreale), in flower, UWGB (Gary Fewless).
June 14

Orchard grass (Dactylis glomerata) in flower (anthesis), Allouez; long-leaved starwort (Stellaria longifolia), Marinette Co (Gary Fewless).

Northern bush honeysuckle (Diervilla lonicera), white wild indigo (Baptisia alba) in flower, UWGB (Gary Fewless).

June 13 Yellow sweet clover (Melilotus officinalis) in flower, UWGB (Gary Fewless).
June 12 Yellow hawkweed (Hieracium piloselloides) in flower, UWGB (Gary Fewless).
June 11 Orange hawkweed (Hieracium aurantiacum), yellow iris (Iris pseudacorus), daisy fleabane (Erigeron philadelphicus), black locust (Robinia pseudoacacia) in flower, UWGB (Gary Fewless).
June 9

American spikenard (Aralia racemosa), sweet cicely (Osmorhiza claytonii), prairie alumroot (Heuchera richardsonii), alsike clover (Trifolium hybridum), bittersweet nightshade (Solanum dulcamara), American vetch (Vicia americana), river bank grape (Vitis riparia), cow vetch (Vicia cracca) in flower, UWGB (Gary Fewless).

Green Bay received 1.27 inches of rain over the 3 previous days.

June 8

Bird's-foot trefoil (Lotus corniculatus) and ox-eye daisy (Chrysanthemum leucanthemum) in flower, Oconto County along Highway 32 (Gary Fewless).

Alternate-leaved dogwood (Cornus alternifolia) in flower, UWGB (Gary Fewless).

June 7

Observed my first monarch butterfly (Danaus plexippus) of the year, a worn female busily depositing eggs on all the milkweeds she could find, Town of Cooperstown, Manitowoc County (Joel Trick).

Red raspberry (Rubus strigosus), blackberry (Rubus allegheniensis), bog bean (Menyanthes trifolia) and bluebead lily (Clintonia borealis) in flower, Forest County, starting date unknown but recent . Bog laurel (Kalmia polifolia) also in flower, but probably for at least a week. Cottongrass (Eriophorum spissum) in peak flowering season and very conspicuous (Gary Fewless).

June 6

Kentucky bluegrass (Poa pratensis) widely in flower in Green Bay area. It can be a source of "hayfever" for some people during this period.

New in flower, UWGB: white clover (Trifolium repens); long-styled sweet cicely (Osmorhiza longistylis). The large white trilliums (Trillium grandiflorum) are essentially done flowering on UWGB--all flowers are either pink or brownish now.

Mature fruits of silver maple (Acer saccharinum) are being dispersed in City of Green Bay (some immature fruits have been aborted and dropped earlier), City GB (Gary Fewless).

June 5

First flowers on black raspberry (Rubus occidentalis) and wild caraway (Carum carvi), Town of Cooperstown, Manitowoc County (Joel Trick).

New in flower UWGB: common cinquefoil (Potentilla simplex), cream wild indigo (Baptisia bracteata), golden alexanders (Zizia aurea) (Gary Fewless).

Indian paintbrush (Castilleja coccinea) in flower , Oconto County (Gary Fewless).

June 4

First day of flower of black raspberry (Rubus occidentalis), UWGB (Gary Fewless).

Lightning bugs, Florence County (Gary Fewless).

June 3 Canada anemone (Anemone canadensis), pineapple weed (Matricaria matricarioides), black cherry (Prunus serotina) in flower, UWGB (Gary Fewless).
June 1

The earliest plants of Kentucky bluegrass (Poa pratensis) are beginning to flower (anthesis); Yellow Goat's-beard (Tragopogon dubius) in flower, Brown County, Allouez (Gary Fewless).

Common cinquefoil (Potentilla simplex) in flower, Marinette Co and probably elsewhere in sunny sites (though not yet on UWGB in partial shde) (Gary Fewless).

Black Swallowtail butterfly, Town of Cooperstown, Manitowoc County (Joel Trick).

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Last updated on May 20, 2015