willow buds (sprout/green) 13 Mar 2 Mar 15 Mar Mar 27 -5.8 (Salix alba vitellina) 28/29 Euro. hazelnut (FF/Pollen) 11 Apr 5 Mar 21(Apr 14)Mar 30 +15.5 (Corylus avellana) skunk cabbage (pollen/PB) 12 Mar 26 Mar 25(Apr 10)Apr 2 +4.5 (Symplocarpus foetidus) silver maple 14 Apr 5 Mar 26(Apr 10)Apr 6 +7.0 (Acer saccharinum) Amer.hazelnut (FF/Pollen) 11 Apr Mar 28 Apr Apr 7 +9.5 (Corylus americana) 6/7 16/17 coltsfoot 20 Apr 8 Mar 28 Apr 19 Apr 16 +7.0 (Tussilago farfara) snowdrop (garden) 17 Mar 29 Mar 31(Apr 16)Apr 12 +1.0 (Galanthus nivalis) beaked hazel (FF/Pollen) 7 Apr 8 Mar 31 Apr 17 Apr 12 +6.5 (Corylus cornuta) garden crocus (purple) 17 Apr 9 Apr 5 Apr 18 Apr 15 +3.5 (Crocus vernus) American elm (FF/Pollen) 16 Apr 9 Apr 6 Apr 19 Apr 15 +3.5 (Ulmus americana) Siberian elm (FF/Pollen) 9 ---- Apr 10 ---- Apr 14 ---- (Ulmus pumila) roundlobe hepatica (Glenh.)11 ---- Apr 10 Apr 20 Apr 20 0.0 (Anemone americana) leatherwood 14 Apr12E Apr 10 Apr 18 Apr 21 -0.5 (Dirca palustris) common chickweed 17(Apr15)(Apr 10) ---- (May 15) +5.0 (Stellaria media) tremblng aspen (Pollen/PB) 9 ---- Apr 12 ---- Apr 17 ---- (Populus tremuloides) sharplobed hepatica 20 Apr 16 Apr 12 Apr 22 Apr 23 +1.5 (Anemone acutiloba) slippery elm (FF/Pollen) 10 Apr 17 Apr 13 Apr 19 Apr 17 +3.0 (Ulmus rubra) red maple 11 ---- Apr 13(Apr 16)Apr 20 -4.0 (Acer rubrum) blue squill 20 Apr Apr 13 Apr Apr 24 -0.5 (Scilla siberica) 14/15 21/22 northern blue violet 17 Apr 18 Apr 15 ---- Apr 23 +3.0 (Viola septentrionalis) spicebush 11 Apr Apr 15 Apr Apr 24 +4.5 (Lindera benzoin) 21/22 26/27 striped squill (garden) 17 Apr 17 Apr 15 Apr 23 Apr 25 0.0 (Puschkinia spp) Persian speedwell (Glenh.) 8 ---- (Apr 15) ---- Apr 30E ---- (Veronica persica) common groundsel 3 ---- (Apr 16) ---- ---- ---- (Senecio vulgaris) white squill 19 Apr 16 Apr 16 Apr 22 Apr 24 -1.0 (Scilla siberica alba) bloodroot 22 Apr Apr 17 Apr 20 Apr 24 -3.2 (Sanguinaria canadensis) 14/15 blue cohosh 13 Apr Apr 17 ---- Apr 28 +5.5 (Caulophylum thalictroides) 22/23 periwinkle 17 Apr 22 Apr 18 ---- May 5 +4.0 (Vinca minor) heart-leaved willow 3 ---- (Apr 19)Apr 25(Apr 24) +1.0 (Salix eriocephala) early buttercup (Mohawk) 9 Apr 23 Apr 19 ---- Apr 27 +4.0 (Ranunculus fascicularis) spring bluebell spp 16 Apr 19 Apr 19 Apr 25 Apr 27 -1.0 (Scilla spp(star-flowered)) spring beauty 16 Apr 18 Apr 19 May 1 May 3 -1.5 (Claytonia virginica) pussy willow 17 Apr Apr 20 ---- Apr 25 +3.5 (Salix dicolor) 23/24 Manitoba maple (FF/Pollen) 14 Apr Apr 20 Apr Apr 25 -2.5 (Acer negundo) 18/19 21/22 garden daffodil (in open) 14 Apr 18 Apr 20 Apr 23 Apr28 -3.5 (Narcissus pseudo-narcissus) forsythia 18 Apr Apr 20 Apr May 1 -2.5 (Forsythia spp) 19/20 26/27 wild ginger 18 Apr 23 Apr 21 ---- Apr 28 +2.0 (Asarum canadense) purple cress 15 Apr 22 Apr 22 Apr 28 May 2 -2.0 (Cardamine douglassii) yellow trout lily 18 Apr Apr 22 Apr 26 May 2 -4.2 (Erythronium americanum) 19/20 early saxifrage 9 Apr 21 Apr 22 Apr 30 May 9 -5.0 (Saxifraga virginiensis) shepherd's purse 10 ---- Apr 23 ---- May 10 ---- (Capsella bursa-pastoris) hairy wood rush 12 Apr 25 Apr 24 Apr 28 Apr 28 +0.5 (Luzula acuminata) red trillium 19 Apr Apr 24 Apr 30 Apr 30 -0.3 (Trillium erectum) 23/24 Penn. sedge (Pollen/PB) 10 Apr 23 Apr 24 May 3 Apr 30 +1.0 (Carex pensylvanica) Dutchman's breeches 20 Apr Apr 24(Apr 30)May 5 -4.2 (Dicentra cucullaria) 20/21 Euro. corydalis (garden) 17 Apr 24 Apr 25 Apr 29 Apr 30 -1.0 (Corydalis bulbosa) cutleaf toothwort 19 Apr 21 Apr 25 May 1 May 5 -4.0 (Dentaria laciniata) dandelion (in open) 26 Apr 22 Apr 25 May May 8 -1.8 (Taraxacum officinale) 7/8 field horsetail (Pollen/PB)15 Apr 22 Apr 26 ---- Apr 30 -4.0 (Equisetum arvense) weeping willow 13 ---- Apr 26 Apr May 4 -7.5 (Salix alba vitellina) 26/27 field strawberry 16 Apr 26 Apr 26 ---- May 14 0.0 (Fragaria virginiana) Canada plum (garden) 20(Apr 28)Apr 27 ---- May 3 +1.0 (Prunus nigra) serviceberry 13 Apr Apr 27 Apr 29 May 4 -3.3 (Amelanchier arborea) 25/26 marsh-marigold 16 Apr 23 Apr 27 ---- May 5 -4.0 (Caltha palustris) white trout lily 19 Apr 21 Apr 27 Apr 30 May 6 -6.0 (Erythronium albidum) coltsfoot (seeds open) 19 Apr Apr 27 May 6 May 7 -1.2 (Tussilago farfara) 25/26 lesser celandine 17 Apr 23 Apr 27 May 6 May 7 -2.5 (Ranunculus ficaria) ground ivy 20 Apr Apr 27 ---- May 14 -0.5 (Gleuchoma hederacea) 26/27 wood anemone 14 Apr 24 Apr 28 May 5 May 7 -3.0 (Anemone quinquefolia) Norway maple 15 Apr 21 Apr 28 Apr 27 May 7 -8.5 (Acer platanoides) large-flowered bellwort 19 Apr 23 Apr 28 May 4 May 7 -4.0 (Uvularia grandiflora) white trillium 19 Apr 25 Apr 28 May 6 May 8 -2.5 (Trillium grandiflorum) small alyssum (Glenh'st) 10 ---- Apr 28 ---- May 10 ---- (Alyssum alyssoides) European ash (pollen)/PB 5 ---- Apr 29 ---- (May 2) ---- (Fraxinus excelsior) sugar maple 9 ---- Apr 29 Apr 26 May 5 -9.0 (Acer saccharum) fly honeysuckle 16 ---- Apr 29 ---- May 11 ---- (Lonicera canadensis) rue-anemone 18 ---- Apr 29 ---- May 13 ---- (Thalictrum thalictroides) twinleaf (garden) 18 Apr 25 Apr 30 Apr 29 May 3 -4.5 (Jeffersonia diphylla) common blue violet 13 Apr 25 Apr 30 May 6 May 12 -5.5 (Viola papilionacea) prickly gooseberry 13 Apr Apr 30 May 7 May 12 -5.2 (Ribes cynosbati) 23/24 crack willow 11 ---- May 1 May 4 May 7 -3.0 (Salix fragilis) dog violet 16 Apr 29 May 1 (May 12)May 10 0.0 (Viola conspersa) grape hyacinth (garden) 15 Apr 30 May 1 May 14 May 12 +0.5 (Muscari botryoides) kidneyleaf buttercup 10 Apr 27 May 1 (May 10)May 13 -3.5 (Ranunculus abortivus) pussytoes 8 ---- May 1 ---- May 14 ---- (Antennaria neglecta) yellow violet 19 Apr 24 May 1 May 8 May 15 -7.0 (Viola pubescens) smooth serviceberry 11 May 1 May 2 May 6 May 5 0.0 (Amelanchier laevis) henbit 12 ---- (May 2) ---- (May 18) ---- (Lamium amplexicaule) Euro. white birch (Pollen) 14 Apr 26 May 3 ---- May 8 -7.0 (Betula pendula) sweet cherry spp 8 Apr 27 May 3 ---- May 8 -6.0 (Prunus avium) cypress spurge 11 Apr 27 May 3 (May 21)May 18 -6.5 (Euphorbia cyparissias) prairie smoke (garden) 9 Apr 27 May 3 (May 22)May 18 -1.0 (Geum triflorum) European red currant 12 May 3 May 4 May 13 May 12 0.0 (Ribes rubrum) toad trillium (garden) 19 Apr 27 May 4 May 12 May 12 -3.5 (Trillium sessile) red-berried elder 14 May May 4 (May 10)May 15 -2.2 (Sambucus pubens) 4/5 wood poppy (garden) 19 May 6 May 4 ---- May 15 +2.0 (Stylophotum diphyllum) jack-in-the-pulpit 20 May 1 May 4 (May 20)May 17 0.0 (Arisaema triphyllum) wild pear 9 May 2 May 5 (May 11)May 8 0.0 (Pyrus communis) early meadow rue 16 Apr 27 May 5 May May 8 -4.3 (Thalictrum dioicum) 8/9 Red Haven peach (garden) 14 ---- May 5 ---- May 11 ---- (Prunus persica) long-spurred violet 15 ---- May 5 ---- May 15 ---- (Viola rostrata) garlic mustard 16 Apr 29 May 5 May 19 May 20 -3.5 (Alliaria officinalis) blue beech (pollen) 10 Apr 30 May 6 ---- (May 8) -6.0 (Carpinus caroliniana) hop hornbeam (pollen) 8 Apr 29 May 6 ---- (May 9) -7.0 (Ostrya virginiana) redbud (garden) 10 May 5 May 6 May 12 May 15 -2.0 (Cercis canadensis) red baneberry 17(May 6) May 6 ---- May 16 0.0 (Actea rubra) Virginia bluebells 20 May 3 May 6 May 16 May 17 -2.0 (Mertensia virginica) honesty 16 Apr 30 May 6 (May 19)May 17 -2.0 (Lunaria annua) buffalo currant 16 Apr 30 May 7 May 9 May 12 -5.0 (Ribes odoratum) pin cherry 8 May 6 May 7 May 12 May 12 -0.5 (Prunus pensylvanica) field pennycress 13(May 7) May 7 ---- (May 18) 0.0 (Thlaspi arvense) forget-me-not 21 May 5 May 7 ---- May 20 -2.0 (Myosotis scorpioides) yellow rocket 22 May 4 May 7 May 19 May 22 -3.0 (Barbarea vulgaris) butternut (FF/pollen) 8 ---- May 8 May May +9.0 (Juglans cinerea) 20E 11-FP bishop's cap (garden) 7 ---- May 8 ---- May 17 ---- (Mitella diphylla) Canada violet (garden) 20 May 16 May 8 ---- May 24 +8.0 (Viola canadensis) toothwort 14 May 4 May 9 May May 18 -5.8 (Dentaria diphylla) 11/12 star Solomon's seal 10 May 11 May 9 ---- May 21 +2.0 (Smilacina stellata) wild geranium 19 May 6 May 9 (May 29)May 24 +1.0 (Geranium maculatum) hackberry (Glenhyrst) 3 ---- ---- ---- ---- ---- (Celtis occidentalis) black oak pollen (Glenh.) 6 ---- May 10 ---- ---- ---- (Quercus velutina) wayfaring tree 9(May 13)May 10 May May 16 +5.5 (Viburnum lanatana) 24E wild black currant 14 May May 10 May May 19 +1.2 (Ribes americanum) 9/10 22E dandelion (seeds open) 18 May 5 May 10(May 26)May 22 -0.5 (Taraxacum officinale) thyme-leaved speedwell 20 Apr 27 May 10 ---- May 22 -13.0 (Veronica serpyllifolia) goldenseal (garden) 18 May 16 May 11 ---- May 17 +5.0 (Hydrastis canadensis) foamflower (garden) 19 May 12 May 11 May 30 May 23 +4.0 (Tiarella cordifolia) corn speedwell 11 May 13 May 11 ---- ---- +2.0 (Veronica arvensis) rose mandarin (garden) 13 ---- May 12 ---- May 18 ---- (Streptopus roseus) Japanese barberry 15 May 11 May 12 ---- May 21 -1.0 (Berberis thunbergii) common purple lilac 27 May 12 May 13 May 27 May 26 0.0 (Syringa vulgaris) white ash (pollen) 4 ---- (May 14) ---- ---- ---- (Fraxinus americana) American plum 16 May May 14(May 12)May 19 -6.2 (Prunus americana) 8/9 caragana (garden) 13 ---- May 14 ---- May 20 ---- (Caragana arborescens) greater celandine 20 May 15 May 14 ---- May 21 +1.0 (Chelidonium majus) white baneberry 14 ---- May 14 ---- May 24 ---- (Actaea pachypoda) black medic 11 ---- May 14 ---- (Jun 5) ---- (Medicago lupulina) early hawthorn spp 15 May 12 May 15 ---- May 21 -3.0 (Crataegus spp.) horse chestnut 10 ---- May 15(May 30)May 23 +7.0 (Aesculus hippocastanum) Solomon's seal 15 May 14 May 15 ---- May 24 -1.0 (Polygonatum pubescens) bladdernut 10 May 13 May 15 ---- May 24 -2.0 (Staphylea trifolia) star or bastard toadflax 10 May 11 May 15 ---- May 29 -4.0 (Commandra umbellata) red oak (pollen) 6 ---- May 16 ---- ---- ---- (Quercus rubra) wild crab apple 11(May 14)May 16(May 20)May 21 -1.5 (Malus coronaria) chokecherry 23 May 12 May 16 May May 23 -2.8 (Prunus virginiana) 21/22E blue phlox (garden) 20 May 19 May 16(Jun 2) May 26 +5.0 (Phlox divaricata) wild columbine 19 ---- May 16 ---- May 30 ---- (Aquilegia canadensis) robin's plantain 8 May ---- ---- June 2 ---- (Erigeron pulchellus) 24E garden chives 15 May May 16 June June 7 +6.0 (Allium schoenoprasum) 22E 10 dwf chinquapin (pollen) 9 ---- May 17 ---- ---- ---- (Quercus prinoides) white mulberry 8 ---- (May 18) ---- (May 24) ---- (Morus alba) tartarian honeysuckle 17 May 12 May 18(May 27)May 27 -3.0 (Lonicera tartarica) lily-of-the-valley 19 ---- May 18 ---- May 27 ---- (Convallaria majalis) great Sol. seal (garden) 17 May 21 May 19(May 30)May 25 +3.5 (Polygonatum biflorum) winged euonymus (Glenh.) 7 ---- May 19 ---- May 29 ---- (Euonymus alata) running strawberry bush 7 May May 19 ---- June 7 +3.0 (Euonymus obvatus) 22E bur oak (pollen) 9(May 22)May 20 ---- ---- +2.0 (Quercus macrocarpa) starflower (garden) 12 ---- May 20 ---- (May 28) ---- (Trientalis borealis) blue-eyed grass 9 ---- May 20(May 30)May 29 +1.0 (Sisyrinchium montanum) common buckthorn 14 May 19 May 20 May 30 May 29 0.0 (Rhamnus cathartica) wild lily-of-the-valley 12 May May 20 ---- May 29 +3.0 (Maianthemum canadense) 23E golden alexanders 17(May 17)May 20(Jun 4) May 31 +0.5 (Zizia aurea) common barberry 10 ---- May 20 May 30 May 31 -1.0 (Berberis vulgaris) bird's-foot trefoil 13 ---- May 20 ---- June 9 ---- (Lotus corniculatus) autumn olive 11 ---- May 21 May 30 May 27 +3.0 (Elaeagnus umbellata) cleavers 10 May 19 May 21(Jun 3)(May 29) +2.0 (Galium aparine) red-osier dogwood 18 May 29 May 21(Jun 3) May 31 +5.5 (Cornus stolonifera) glaucous honeysuckle 11 May 22 May 21 May 30 June 1 -0.5 (Lonicera dioca) common cinquefoil 7(May30)(May 21) ---- (Jun 2) +9.0 (Potentilla simplex) English hawthorn 9 ---- May 22 May 28 May 29 -1.0 (Crataegus monogyna) Scots pine (pollen) 19 May 27 May 22 ---- ---- +5.0 (Pinus sylvestris) mayapple 15 ---- May 22 May 30 May 30 0.0 (Podophyllum peltatum) white campion 8 ---- May 22 ---- June ---- (Silene pratensis) 11 rock sandwort (Glenhyrst) 10 (May May 23(Jun 9) June 1 +7.5 (Arenaria stricta) dame's rocket 26 ---- May 23(Jun3/4)June 4 -0.5 (Hesperis matronalis) common mallow 3 ---- (May 24) ---- ---- ---- (Malva neglecta) black cherry 13 May 28 May 24 June 2 May 29 +4.0 (Prunus serotina) hound's-tongue 4 ---- (May 24) ---- June 4 ---- (Cynoglossum officinale) purple vetch (Glenhyrst) 10 May 28 May 24(Jun 12)June 4 +6.0 (Vicia americana) tall buttercup 18(May 26)May 24(Jun 10)June 9 +1.5 (Ranunculus acris) cockspur hawthorn 7 June 1 May 25 June 6(May 30) +7.0 (Crataegus crus-galli) herb robert 18 May May 25(Jun 5) May 31 +2.0 (Geranium robertianum) 24E small yellow ladyslipper 13 ---- May 25 June June 2 +3.5 (Cypripedium calc. parv.) 5/6 Virginia waterleaf 20 May 29 May 25(Jun 10)June 4 +5.0 (Hydrophyllum virginianum) anemone (Glenhyrst) 11(May 30)May 25(Jun 9) June 7 +3.5 (Anemone cylindrica) false Solomon's seal 22(May 26)May 26 June June 1 +1.8 (Smilacina racemosa) 4/5 Bridlewreath spirea 17 May 27 May 26 June June 2 +1.8 (Spirea vanhouttei) 4/5 yellow wood sorrel 15 ---- May 26 ---- (June 4) ---- (Oxalis europa) nannyberry 20 May 28 May 26 June June 4 +0.2 (Viburnum lentago) 2/3 yellow goat's-beard 15(May 29)May 26 ---- June 4 +3.0 (Tragopogon pratensis) charlock 22 June 1 May 26(Jun 12)June 8 +5.0 (Sinapsis arvensis) alternate dogwood 10 May 30 May 27 June 6 June 4 +2.5 (Cornus alternifolia) wild red raspberry 12 ---- May 27 ---- June 9 ---- (Rubus idaeus) red clover 16 June 3 May 28 ---- June +6.0 (Trifolium pratense) 10 carrion flower 3 ---- (May 28) ---- (Jun 12) ---- (Smilax herbacea) shagbark hickory (pollen) 4 ---- May 29 ---- ---- ---- (Carya ovata) downy arrowwood 11 ---- May 29 ---- June 5 ---- (Viburnum rafinesquianum) wild asparagus 8 ---- May 29 ---- ---- ---- (Asparagus officinalis) white clover 11 ---- May 29 ---- June ---- (Trifolium repens) 11 common fleabane 26 June 1 May 29 ---- June +3.0 (Erigeron philadelphicus) 15 wormseed mustard 15 May 30 May 29 ---- June +1.0 (Erysimum cheiranthoides) 15 tufted or cow vetch 14 ---- May 29 ---- June ---- (Vicia cracca) 19 black raspberry 9 ---- May 30 ---- ---- ---- (Rubus occidentalis) pussytoes, seed heads open 4 ---- (May 30) ---- (Jun 10) ---- (Antennaria neglecta) Canada anemone 14 June May 30(Jun 16)June +3.2 (Anemone canadensis) 2/3 13 ox-eye daisy 18 May May 30(Jun 11)June -5.8 (Leucanthemum vulgare) 26/27 19 black walnut (pollen) 8 ---- May 31 ---- ---- ---- (Juglans nigra) slender vetch 5 ---- (May 31) ---- ---- ---- (Vicia tetrasperma) yellow hawkweed 16 May May 31 ---- June -3.5 (Hieracium caespitosum) 27/28 12 hairy beardtongue 19 May 28 May 31(Jun 9) June -5.5 (Penstemon hirsutus) 17 common comfrey 17 June 1 June 1 June 8(June 8) 0.0 (Symphytum officinale) narrow-lvd hawk's-beard 7 ---- June 1 ---- ---- ---- (Crepis tectorum) yellow sweet-clover 9 ---- June 1 ---- June ---- (Melilotus officinalis) 18 ground cherry (Glenhyrst) 9(Jun 2) June 2 ---- ---- +2.0 (Physalis heterophylla) common blackberry 13 ---- June 2 ---- June ---- (Rubus allegheniensis) 12 orange horse gentian 5 June 2(Jun 3) June 5 ---- -1.0 (Triosteum aurantiacum) riverbank grape 18 June 5 June 3 ---- June +2.0 (Vitis riparia) 11 common speedwell 6 ---- June 3 ---- June ---- (Veronica officinalis) 12 rugosa rose (garden) 16 June 2 June 4 June (Jun 18) -5.0 (Rosa rugosa) 10 alumroot (garden) 11 ---- June 4 ---- June ---- (Heuchera americana) 19 climbing nightshade 14(Jun 8) June 4 ---- June +4.0 (Solanum dulcamara) 20 climbing bittersweet 9 June 8 June 5 ---- (Jun 14) +3.0 (Celastrus scandens) bladder campion 9 June June 5 June June -1.8 (Silene cucubalus) 4/5 13 16 orange hawkweed 5 ---- June 5 ---- June ---- (Hieracium aurantiacum) 19 stinging nettle 8 ---- June 5 ---- ---- ---- (Urtica dioica) wild strawberry (fruit) 10 ---- June 5 ---- June ---- (Fragaria virginiana) 25 black locust 18 June June 6 ---- June -0.5 (Robinia pseudo-acacia) 5/6 12 ninebark 12 June 5 June 6 June June +0.5 (Physocarpus opulifolius) 17E 15 poison ivy (Glenhyrst) 4 ---- (Jun 6) ---- (Jun 16) ---- (Rhus radicans) crown vetch 9(Jun6/7)June 6(Jun 28)June +1.8 (Coronilla varia) 25 dwarf snapdragon 5 ---- (June 7) ---- ---- ---- (Chaenorrhinum minus) northern bedstraw 7 ---- June 7(Jun 17)June -3.0 (Galium boreale) 20 narrow-leaved vetch 11 ---- June 7 ---- June ---- (Vicia sativa) 22 yarrow 14 June 1 June 7 ---- June -6.0 (Achillea millefolium) 23 maple-leaved viburnum 3 ---- (June 8) ---- June ---- (Viburnum acerifolium) 11 smooth wild rose 17 June June 8(Jun 11)June -5.8 (Rosa blanda) 3/4 18 goutweed 18 June June 8 June (Jun 23) -0.8 (Aegopodium podagraria) 8/9 21E wild madder 10 June June 8 June June -1.0 (Galium mollugo) 10 21E 25 field bindweed 7 ---- June 8 ---- (Jun 29) ---- (Convolvulus arvensis) tumble mustard 6 June ---- ---- ---- ---- (Sisymbrium altissimum) 17 false indigo (garden) 13 June 7 June 9 June June -2.5 (Amorpha fruticosa) 12 15 round-leaved dogwood 7 ---- June 9 June June -5.0 (Cornus rugosa) 10 15 sweetbrier 5 ---- June 9 ---- (Jun 18) ---- (Rosa rubiginosa) rough-fruited cinquefoil 15(June 8)June 9 ---- June -1.0 (Potentilla recta) 20 spiked lobelia (Hardy Rd) 5 ---- ---- ---- (Jun 26) ---- (Lobelia spicata) mossy stonecrop 13 June June ---- June -4.5 (Sedum acre) 5/6 10 22 wild mock-orange 11 June June June June -3.0 (Philadelphus inodorous) 12 10 17 25 butter-and-eggs 11 June June ---- (Jun 28) +3.0 (Linaria vulgaris) 13 10 rough cinquefoil 12 June (Jun 11) ---- ---- +3.0 (Potentilla norvegia) 14 south'n arrowwood (garden) 6 ---- June ---- June ---- (Viburnum dentatum) 11 14 Indian hemp 8 June16 June (Jul 4)(July 1) +4.0 (Apocynum cannabinum) 11 tall meadow rue 12(Jun 11)June (Jun 29)July 5 -3.0 (Thalictrum pubescens) 11 nodding thistle 20 June June (July 5) ---- -2.0 (Carduus nutans) 10 12 common privet 8 JUne June ---- June -1.0 (Ligustrum vulgare) 11 12 21 alfalfa 13 June June ---- June +1.0 (Medicago sativa) 13 12 27 rough avens 12 June June ---- (Jun 16) 0.0 (Geum laciniatum) 13 13 multiflora rose 12 June June ---- June -7.5 (Rosa multiflora) 5/6 13 21 yellow goat's-beard (seeds)15 June June ---- ---- -1.0 (Tragopogon pratensis) 12 13 sweet William 15 June 9 June June (Jun 22) -1.5 (Dianthus barbatus) 14 24E foxglove beardtongue 16 June 9 June June June -2.5 (Penstemon digitalis) 14 22E 22 hedge bindweed 4 ---- (Jun 15) ---- ---- ---- (Convolvulus sepium) yellow avens 10 ---- June ---- June ---- (Geum aleppicum) 15 25 purple-flowering raspberry 8 ---- June ---- (Jun 29) ---- (Rubus odoratus) 15 riverbank anemone 9 ---- (Jun15)(Jul 3) June +4.0 (Anemone riparia) 29 yellow hawkweed (seeds) 4 ---- June ---- ---- ---- (Hieracium caesoitosum) 16 silky dogwood 5 ---- June ---- (Jun 24) ---- (Cornus obliqua) 17 wild 4-o'clock 6 ---- June ---- ---- ---- (Mirabilis nyctaginea) 17 broad-leaved dock 4 June ---- ---- ---- ---- (Rumex obtusifolius) 16 sow thistle spp 9 ---- June ---- ---- ---- (Sonchus spp) 18 grey dogwood 22 June June June June -7.2 (Cornus racemosa) 10 18 18/19 25 staghorn sumac 7 ---- June ---- June ---- (Rhus typhina) 18 29 common St.John's-wort 12 June June ---- July 7 0.0 (Hypericum perforatum) 18 18 chicory 12 June June (Jul 3)(July 8) -6.0 (Cichorium intybus) 11 18 white sweet-clover 9 ---- June ---- July ---- (Melilotus alba) 18 12 wild garlic 5 ---- June ---- June ---- (Allium canadense) 19 25 white avens 15 June June ---- June -4.0 (Geum canadense) 15 19 25 common sundrops (garden) 18 June June (Jun 30)June 0.0 (Oenothera fruticosa) 16 19 27 moneywort 15 ---- June (Jun 30)June +2.0 (Lysimachia nummularia) 19 28 Deptford pink 12 June June (July 1)July 6 -4.5 (Dianthus armeria) 15 19 common milkweed 15 June June (July 1)July -6.0 (Asclepias syrica) 16 19 10 heal-all 16 June June ---- (Jul 10) +9.0 (Prunella vulgaris) 28 19 flowering spurge (Glenh.) 10 ---- (Jun 19) ---- Aug 5 ---- (Euphorbia corollata) 19) spreading dogbane 12 June June (July 4)July 3 -3.5 (Apocynum androsaemifolium) 12 20 burning bush (garden) 12 June June (Jul 11)July 4 +4.5 (Euonymus atropurpureus) 23E 21 butterfly weed (Hardy Rd) 10 June June (July 9)July 5 +4.5 (Asclepias tuberosa) 26E 21 wild parsnip 11 ---- June ---- July ---- (Pastinaca sativa) 21 14 false spirea 5 ---- (Jun 22) ---- ---- ---- (Sorbaria sorbifolia) catalpa 18 ---- June (Jun 30)July 1 -1.0 (Catalpa speciosa) 22 common elderberry 11 ---- June (Jun 28)July 1 -3.0 (Sambucus canadensis) 22 motherwort 16 June June (July 5)July 4 -3.0 (Leonurus cardiaca) 15 22 wild quinine (garden) 15 June June July July -5.5 (Parthenium integrifolium) 13 22 11 13 queen-of-the-meadow (gdn) 11 June June July 4 July 1 +2.0 (Filipendula ulmaria) 24E 23 green milkweed (Glenhyrst) 6 June (Jun 23)July 7(July 5) +1.5 (Asclepias viridiflorus) 24E wild basil 19 June June (Jul12)(July 9) +1.5 (Satureja vulgaris) 23E 23 Canada thistle 15 ---- June (July 9)July -2.0 (Cirsium arvense) 23 11 smooth sumac 10(Jun 29)June July 7 June +6.0 (Rhus glabra) 24 30 harebell 6 June ---- (Jul 15) ---- ---- (Campanula rotundifolia) 27 purple loosestrife 9 July 8(Jun 24) ---- (Jul 16) +14.0 (Lythrum salicaria) mayweed 6 ---- June ---- July 8 ---- (Anthemis cotula) 25 Queen Anne's lace 18 June June ---- (Jul 29) +1.0 (Daucus carota) 26E 25 Virginia creeper 5 ---- June ---- ---- ---- (Parthenocissus inserta) 26 orange day-lily 17 ---- June July 9 July -2.0 (Hemerocallis fulva) 27 11 lady's thumb 6 ---- (Jun28)(Jul 22) ---- ---- (Polygonum persicaria) common mullein 17 June June ---- July -2.0 (Verbascum thapsus) 26E 28 14 black-eyed Susan 19(Jun 26)June ---- July -2.0 (Rudbeckia hirta) 28 16 red raspberry (fruit) 16(July 6)June ---- July +8.0 (Rubus idaeus) 28 16 agrimony 11 ---- June ---- (Jul 17) ---- (Agrimonia gryposepala) 28 fringed loosestrife 9(July June ---- July +3.5 (Lysimachia ciliata) 2/3) 29 12 catnip 16 June June (July 9)July -1.5 (Nepeta cataria) 29 29 12 Dillen's tick-trefoil 7 July 7 June ---- (July 7) +7.0 (Desmodium dillenii) 30 Michigan lily 12 June June July July 8 +0.8 (Lilium michiganense) 29 30 10/11 enchanter's nightshade 18 July 1 June ---- July 9 +1.0 (Circaea quadrisulcata) 30 spotted cowbane 7(July 6)Jun30)(Jul19)(Jul 15) +5.0 (Cicuta maculata) Canada lily (garden) 6 ---- July 1 ---- ---- ---- (Lilium canadense) creeping bellflower 17 July 3 July 1(Jul 14)July -1.0 (Campanula rapunculoides) 18 spotted jewelweed 4 July 9 July 1 ---- ---- +8.0 (Impatiens capensis) hoary vervain (garden) 7 ---- July 2 ---- ---- ---- (Verbena stricta) white vervain 10 July 8 July 2 ---- ---- +6.0 (Verbena urticifolia) carpenter's square 4 July 2(July 3) ---- ---- -1.0 (Scrophularia marilandica) black raspberry (fruit) 19 June July 3 ---- (Jul 21) -4.0 (Rubus occidentalis) 29 swamp milkweed 10 ---- July 4 ---- (Jul 12) ---- (Asclepias incarnata) evening-primrose 15(July 4)July 4 ---- ---- 0.0 (Oenothera parviflora) oxeye (false sunflower) 10 July 6 July 4 ---- July +2.0 (Heliopsis helianthoides) 30 pale jewelweed 8 July 8 July 4 ---- (Aug 14) +4.0 (Impatiens pallida) Virginia stickseed 3 July 9 ---- July ---- ---- (Hackelia virginiana) 21/22 blue vervain 6 ---- July 5(Jul 21)July +1.0 (Verbena hastata) 20 bouncing bet 8 July 2 July 5(Jul 22)July -0.5 (Saponaria officinalis) 20 American basswood 6 July 6 July 6(Jul 11)July 9 +1.0 (Tilia americana) showy tick-trefoil (Glenh.)12 July 6(July 7) ---- ---- -1.0 (Desmodium canadense) wild lettuce 7 July 2(July 7) ---- ---- -5.0 (Lactuca canadensis) wild leek 8 July July 8 July July +4.8 (Allium tricoccum) 13 22/23 18 lopseed (Hardy Rd) 3 ---- (July 8) ---- (Jul 19) ---- (Phryma leptostachya) Oswego tea (garden) 19 July 7 July 8 July July -1.2 (Monarda didyma) 18/19 20 wild bergamot 16 July 4 July 9(Jul 19)July -2.0 (Monarda fistulosa) 18 wood sage or germander 5(Jul11)(Jul 9)(Jul 24)July +2.0 (Teucrium canadense) 22 Canada thistle (seeds) 4 ---- (July 9) ---- (Jul 27) ---- (Cirisium arvense) hairy willow herb 7(Jul 19)July 9 ---- (Jul 30) +10.0 (Epilobium hirsutum) prickly lettuce 2(Jul 7)(July 9) ---- ---- -2.0 (Lactuca scariola) Virg. Mt. mint (garden) 15 July 4 July (Jul 27)Aug 3 -6.5 (Pycanthemum virginianum) 10 tansy 18(July 5)July ---- (Aug 10) -5.0 (Tanacetum vulgare) 10 wild hydrangea (garden) 11 July July (Jul24)(Jul 18) +3.0 (Hydrangea arborescens) 11 11 marshmallow (garden) 6 July (Jul 11) ---- (Jul 27) -0.5 (Althea officinalis) 10/11 elecampane 3 ---- July ---- ---- ---- (Inula helenium) 11 early goldenrod 11(Jul 15)July ---- Aug 4 +4.0 (Solidago juncea) 11 European speedwell 6 July (Jul 12)July ---- -1.0 (Veronica spp) 11 24E queen-of-the-prairie (gdn) 10 ---- July ---- July ---- (Filipendula rubra) 12 21 northern willowherb 4 ---- (Jul 13) ---- ---- ---- (Epilobium glandulosum) spikenard (garden) 10 July July (Jul25)(Jul 21) +4.2 (Aralia racemosa) 17/18 13 tall cinquefoil (garden) 5 July (Jul 14) ---- ---- +3.5 (Potentilla arguta) 17/18 woodland sunflower (Glenh.) 9 July (July ---- (Jul 28) +1.5 (Helianthus divaricatus) 15/16 virgin's bower 8 July July ---- Aug 14 -3.5 (Clematis virginiana) 10/11 14 side-oats gramma (prairie) 6(Jul 17)July ---- (Jul 27) +2.0 (Bouteloua curtipendula) 15 downy willowherb 7 July July ---- (Jul 29) -3.0 (Epilobium strictum) 12 15 teasel 14 July July ---- Aug 6 +1.0 (Dipsacus fullonum) 16 15 sow thistle spp (seeds) 4 ---- (Jul 16) ---- ---- ---- (Sonchus spp) helleborine orchid 7 ---- July ---- July ---- (Epipactis helleborine) 16 28 brown knapweed 4 July ---- ---- ---- ---- (Centaurea jacea) 21 Culver's root (garden) 10 July July July July -0.5 (Veronicastrum virginicum) 18 17 29E 31 buttonbush (garden) 7 July July (Jul24)(Jul 24) -0.5 (Cephalanthus occidentalis) 16 18 black cohosh (garden) 15 July July (Jul28)(Aug 2) -3.0 (Cimicifuga racemosa) 17 18 gray-head coneflower (gdn) 16 July July Aug Aug 3 +2.5 (Ratibida pinnata) 16 18 10E spearmint (garden) 8 ---- July Aug (Aug 5) +7.0 (Mentha spicata) 18 12E large-leaved aster 16 July July (Aug 22)Aug 14 +5.0 (Aster macrophyllus) 20 18 wild marjoram (Paris) 7 ---- ---- ---- (Aug 4) ---- (Origanum vulgare) common burdock 17 July July ---- (Aug 8) +1.5 (Arctium minus) 20/21 19 lamb's quarters (pigweed) 4 ---- (Jul 20) ---- ---- ---- (Chenopodium alba) Indian tobacco 4 ---- July ---- (Jul 31) ---- (Lobelia inflata) 20 big bluestem (prairie) 9 July July ---- Aug 7 0.0 (Andropogon gerardii) 20 20 boneset 8 ---- July ---- Aug 13 ---- (Eupatorium perfoliatum) 20 bull thistle 11 July July ---- (Aug 13) +1.0 (Cirsium vulgare) 21 20 tall bellflower (garden) 4 ---- (Jul 22) ---- ---- ---- (Campanula americana) joe-pye weed 8 July July (Aug 23)Aug 13 +10.0 (Eupatorium maculatum) 21 23 prairie onion (garden) 7 ---- July ---- Aug 2 ---- (Allium stellatum) 24 cup-plant (garden) 12 July July ---- Aug 18 +1.0 (Silphium perfoliatum) 25 24 great ragweed (pollen) 10 July July ---- (Aug 18) -4.0 (Ambrosia trifida) 22 26 wild cucumber 8 ---- July Aug 27 Aug 17 +10.0 (Echinocystis lobata) 28 horseweed 7(Jul17)(Jul 29) ---- ---- -12.0 (Erigeron canadensis) wild senna (garden) 12 July July (Aug 10)Aug 10 -3.5 (Cassia hebecarpa) 24 31 round bush clover (prairie) 6 ---- July ---- (Aug 15) ---- (Lespedeza capitata) 31 tiger lily (garden) 12 ---- Aug 1 ---- (Aug 7) ---- (Lilium tigrinum) prairie-dock (garden) 9 ---- Aug 2 (Aug 23)Aug 24 -1.0 (Silphium terebinthinaceum) thin-lf coneflower (garden) 8 ---- Aug 4 ---- Aug 26 ---- (Rudbeckia triloba) grass-leaved goldenrod 14 ---- Aug 4 (Sep 15)Sept 4 +11.0 (Solidago graminifolia) great blue lobelia 11 ---- Aug 6 ---- Aug 24 ---- (Lobelia siphilitica) white snakeroot 10 ---- (Aug 7)(Aug30)(Aug 28) +2.0 (Eupatorium rugosum) Prince's feather (garden) 5 ---- (Aug 8) ---- Aug 24 ---- (Polygonum orientale) rigid goldenrod (garden) 11 Aug Aug 8 ---- Aug 30 +6.0 (Solidago rigida) 14E green-headed coneflower 8 ---- (Aug 9)(Aug28)(Aug 15) +13.0 (Rudbeckia laciniata) little bluestem (prairie) 6 ---- Aug 10 ---- ---- ---- (Andropogon scoparius) smooth aster (Paris trail) 8 ---- Aug 10 ---- (Sep 10) ---- (Aster laevis) southern ironweed (garden) 12 ---- Aug 11 ---- Aug 17 ---- (Veronia crinita) mayapple (fruit ripe) 4 ---- (Aug 11) ---- ---- ---- (Podophyllum peltatum) largeflower gaura (garden) 8 Aug 19 Aug 11 ---- Aug 29 +8.0 (Gaura longiflora) zig-zag goldenrod 12 Aug Aug 11 Sept 7 Sept 9 +4.0 (Solidago flexicaulis) 21E common ragweed (pollen) 9 ---- Aug 12 ---- ---- ---- (Ambrosia artemisiifolia) tall sunflower (Hardy Rd) 8 ---- Aug 12 Sept 4(Sept 6) -2.0 (Helianthus giganteus) Canada goldenrod 17 ---- Aug 12(Sep 10)Sept -2.0 (Solidago canadensis) 12 wild grape (fruit ripe) 3 ---- (Aug 12) ---- ---- ---- (Vitis riparia) tall coreopsis (garden) 9 Aug 21 Aug 13(Sept 7)Aug 31 +7.5 (Coreopsis tripteris) switch grass (garden) 8 ---- Aug 14 ---- ---- ---- (Panicum virgatum) groundnut (Grand River) 5 ---- (Aug 15)Aug 24 ---- ---- (Apios americana) false dragonhead (garden) 14(Aug 20)Aug 15 ---- ---- +5.0 (Physostegia virginiana) flat-topped aster 6 ---- (Aug 16) ---- (Sept 5) ---- (Aster umbellatus) blue-stem goldenrod 9 ---- Aug 17 Sept 4(Sept 6) -2.0 (Solidago caesia) gray goldenrod 13 Aug 24 Aug 17(Sep 11)Sept 9 +4.5 (Solidago nemoralis) arrow-leaved aster 11 Aug Aug 17 Sept 3 Sept -5.0 (Aster sagittifolius) 18E 14 New England aster 15 Aug Aug 17(Sep 23)Sept +3.0 (Aster novae-angliae) 19E 19 turtlehead (Paris) 8 Aug Aug 18(Sep 2)(Aug 28) +4.5 (Chelone glabra) 22E hog-peanut vine 4 Aug ---- ---- ---- ---- (Amphicarpa bracteata) 21E nodding ladies'-tresses 6(Aug22)(Aug 18)Sept 4 Sept 1 +3.5 (Spiranthes cernua) grass-of-Parnassus (Paris) 7 ---- (Aug18)(Sept1)(Sept 3) -2.0 (Parnassia glauca) Indian grass (Paris) 9(Sept 1)Aug 19 ---- (Sept 10 +13.0 (Sorgastrum nutans) white lettuce 8 Aug 23 Aug 19 ---- (Sept 3) +4.0 (Prenanthes alba) calico aster 11(Aug 23)Aug 19(Sep 12)Sept +1.5 (Aster lateriflorus) 13 swamp aster (Paris trail) 7 ---- Aug 19 Sept Sept -5.0 (Aster puniceus) 10E 15 small panicled aster(early)12 ---- Aug 20 ---- ---- ---- (Aster lanceolatus spp) thin-leaved sunflower 4 ---- (Aug 21) ---- ---- ---- (Helianthus decapetalus) frost aster 11 Aug 25 Aug 21 ---- (Sep 20) +4.0 (Aster pilosus) nodding bur-marigold 4 ---- (Aug 22) ---- (Sep 13) ---- (Bidens cernua) beggar ticks 10 ---- Aug 23 ---- (Sep 11) ---- (Bidens frondosa) sky-blue aster (prairie) 9 Aug 24 Aug 23(Sep17)(Sep 20) -1.0 (Aster oolentangiensis) rough-lvd goldenrod (Paris) 6 ---- Aug 24 ---- (Sept 5) ---- (Solidago patula) heart-leaved aster 6 ---- (Aug 24)Sept Sept +5.0 (Aster cordifolius) 22 17 large-leaved aster (seeds) 5 ---- (Aug 27) ---- ---- ---- (Aster macrophyllus) red turtlehead (garden) 6 ---- Aug 27 Sept (Sept 9) +6.0 (Chelone obliqua) 15 strawberry bush (fruit) 5 Sep 1 (Aug 28) ---- ---- +4.0 (Euonymus obvatus) lance-leaved aster 9 ---- (Aug 29) ---- Sept ---- (Aster lanceolatus) 20 fringed gentian (Hardy Rd) 7 Sept 2 Sept 5 ---- Sept -3.0 (Gentiana crinita) 13 heath aster 9 Sept Sept 6 ---- (Sep 25) 0.0 (Aster ericoides) 6E beechdrops 8 Sept Sept (Sep15)(Sep 21) -5.7 (Epifagus virginiana) 5/6 11 max. sunflower (garden) 11 Sept Sept Sept Sept +1.0 (Helianthus maximilianii) 15 13 25 25 witch-hazel 6(Sep19)(Sep 22) ---- ---- -3.0 (Hamamelis virginiana) zig-zag goldenrod (seeds) 6(Sep21)(Sep 27) ---- ---- -6.0 (Solidago flexicaulis) SOME ADDITIONAL OBSERVATIONS: Spring Peepers Calling 19 Apr 8 Apr 8 ---- ---- 0.0 Mourning Cloak Butterfly 29 Apr 5 Apr 10 ---- ---- -5.0 American toad calling 21 Apr 22 Apr 20 ---- ---- +2.0 Tent Caterpillar EggsHatch 13 Apr 17 Apr 22 ---- ---- -5.0 Bumblebee flying 15 Apr 26 Apr 24 ---- ---- +2.0 Cabbage White Butterfly 17 Apr 20 Apr 24 ---- May 1 -4.0 PROGRESS OF SEASONAL BLOOM COMPARED TO THE AVERAGE: (DAYS) Mar 1-31 -3.1 Apr 1-5 +12.5 May 1-5 -2.2 May31-Jun4 +1.7 Apr 6-10 +6.6 May 6-10 -2.1 June 5-9 +0.1 Apr 11-15 +4.8 May 11-15 -1.0 June 10-14 -2.1 Apr 16-20 +0.9 May 16-20 +1.0 June 15-19 -2.4 Apr 21-25 -1.8 May 21-25 +2.0 June 20-24 -0.1E Apr 26-30 -4.5 May 26-30 +2.4 June 25-29 +0.4 Jun30-July4 -0.9 Jul30-Aug3 N/A Aug29-Sep2 +3.2 July 5-9 +2.0 Aug 4-8 N/A Sept 3-7 -1.6 July 10-14 +0.6 Aug 9-13 N/A Sept 8-12 -0.3 July 15-19 +0.9 Aug 14-18 +3.5E Sept 13-17 -0.4E July 20-24 +0.5 Aug 19-23 +5.1 Sept 18-22 -0.6E July 25-29 -0.9E Aug 24-28 +7.0 Sept 23-27 -0.8E NOTE:FF = First Flowers/Pollen;PB = Peak/Mid Bloom;E = Estimate Compiled by Ron Hepworth, Brantford, ON