Dates of First Flowers

Species 2002 2003 2004 2005 2006 2007 2008 2009 2010
February
Galanthus nivalis 16.2 23.2 16.2 16.3 18.3 12.2   7.2 27.2 27.2
Tussilago farfara 24.3 28.3 16.3 21.3   1.4 15.2 10.2 13.3 27.2
March
Bellis perennis ? 12.3 16.2 21.3   1.4 10.1 10.2 13.3
Stellaria media ?   5.4   2.4   3.4   6.4   2.3 28.2 16.3
April
Cardamine hirsuta ? 29.3 29.3   1.4   2.4   4.3 28.2   3.4
Taraxacum officinale ?   6.4 31.3   3.4   2.4 10.3 19.2   4.4
Ranunculus ficaria ?   3.4   9.4 11.4 22.4 28.3 31.3   7.4
Anemone nemorosa   1.4 31.3   9.4   4.4 17.4 29.3 31.3   8.4
Caltha palustris 13.4 18.4 11.4 14.4 17.4   8.4   6.4 10.4
Veronica agrestis ? ? ? ? 16.5 11.4 ? ?
Lamium purpureum ? 23.4 25.4 24.4 23.4 28.3 22.4 12.4
Oxalis acetosella   4.4 20.4 14.4 21.4 26.4   6.4 18.4 14.4
Viola palustris 14.4 18.4 23.4 23.4 27.4 13.4 24.4 14.4
Euphorbia amygdaloides ? 18.6 ? 14.6 14.5 11.4 16.4 ?
Glechoma hederacea ? 13.4 11.4 21.4   1.5 11.4 25.4 18.4
Alchemilla xanthochlora 16.5 10.5   5.5 28.4   2.5 20.4   8.5 18.4
Viola arvensis ? ? 27.4 18.5 12.5 18.4 ? ?
Cardamine pratensis 25.4 18.4 27.4 27.4   7.5 17.4 29.4 20.4
Lamium album   9.5 23.4 28.4 28.4   4.5   2.4   1.5 20.4
Cardamine flexuosa 30.4   4.5   4.5 30.4 24.4 16.4   1.5 21.4
Barbarea vulgaris 15.5 28.4 15.4 14.4   2.5 11.4   4.5 21.4
Plantago lanceolata 10.5   1.5   5.5   6.5 11.5 17.4   8.5 21.4
Capsella bursa-pastoris ? ? 16.4 26.4 27.4 11.4 22.4 22.4
Alliaria petiolata ? 14.5   5.5   6.5 12.5 20.4   4.5 22.4
Viola riviniana 25.4 23.4 15.4 26.4   2.5 17.4   8.5 22.4
Ranunculus acris ? 29.4 27.4 28.4   8.5 17.4   7.5 23.4
Viola tricolor 20.5   3.5   5.5 28.4 27.4 13.4   8.5 24.4
Anthriscus sylvestris   9.5 28.4   4.5   1.5   9.5 17.4 30.4 25.4
Thlaspi arvense ? ? ? ?   5.6 25.4 ? ?
Lathyrus montanus 20.5 27.4 27.4   6.5 11.5 15.4 11.5 26.4
Stellaria holostea   9.5 30.4   2.5   1.5   6.5 13.4   8.5 30.4
Veronica chamaedrys 10.5   1.5   2.5   1.5   8.5 16.4   8.5 30.4
Valeriana dioica 13.5   3.5 10.5   5.5 15.5 26.4   8.5 30.4
Veronica arvensis 13.5   8.5 27.4   1.5   4.5 16.4   9.5 30.4
Montia fontana ? ? ? ? ? 10.5 15.5 30.4
May
Ajuga reptans   9.5 30.4   5.5   5.5   9.5 22.4   8.5   4.5
Cardamine amara   9.5   2.5 11.5   5.5 11.5 26.4 12.5   4.5
Ranunculus repens ? 16.5 11.5 10.5 10.5 16.4   6.5   7.5
Chelidonium majus ? ? ? <29.5   <25.5   24.4   9.5   7.5
Potentilla erecta 13.5 28.4   5.5 11.5 15.5 19.4 14.5   7.5
Vicia sepium 16.5 16.5 20.5 22.5 25.5 11.5 15.5   7.5
Myosotis arvensis ? 13.5 23.5 16.5 16.5 11.4   8.5   8.5
Polygala serpyllifolia   3.5 28.4   5.5 30.4 11.5 17.4   9.5   8.5
Rumex acetosa ?   4.5   5.5 18.5 16.5 22.4 11.5   8.5
Sisymbrium officinale   7.7 22.5 25.5 29.5   4.6 13.5 17.6   8.5
Lemna minor ? ? ? ? ?   8.5 ? ?
Myosotis scorpioides 27.4 27.4 28.4   9.5 15.5 29.4   8.5   9.5
Cruciata laevipes ? 10.6 26.5 28.5 14.5 29.4 13.5   9.5
Stellaria uliginosa   4.6 27.5 11.5   5.5 15.5 10.5 13.5   9.5
Myosotis laxa 13.5   4.5 27.4 30.4   9.5   3.5 19.5   9.5
Trifolium pratense ? 12.5 10.5 19.5 24.5 23.4 17.5 10.5
Aquilegia vulgaris ?   3.6   8.6 28.5   2.6 - <7.6 10.5
Fragaria vesca ? ? ? ? 16.5 30.4 12.5 ?
Geranium robertianum 18.5 22.5 18.5 15.5 14.5 29.4 15.5 13.5
Ceratocapnos claviculata   8.6 25.5 14.5 26.4 27.4 11.4   1.5 16.5
Myosotis nemorosa ? ? 22.5 <8.6   4.6 29.4 13.5 16.5
Moehringia trinervia ? ? ? 25.5 ? ? 16.5 16.5
Ranunculus flammula 19.5 20.5 27.5 29.5   1.6   3.5 19.5 16.5
Cerastium glomeratum ? ? ? 20.5 ? 24.4 20.5 16.5
Meum athamanticum 26.5 20.5 17.5   9.5 16.5   5.5 12.5 17.5
Polygonum bistorta 14.5 10.5 17.5 18.5 15.5 10.5 19.5 17.5
Cerastium fontanum 13.5   7.5   9.5   1.5   4.5 16.4   8.5 18.5
Veronica serpyllifolia ? 12.5 10.5 16.5 16.5 25.4 10.5 18.5
Ranunculus aquatilis ? 23.5 23.5 16.5 11.5 26.4 12.5 18.5
Menyanthes trifoliata 19.5 10.5 10.5   8.5   9.5 28.4 12.5 18.5
Geranium sylvaticum 15.6 27.5 26.5 22.5   1.6 10.5 12.5 18.5
Trientalis europaea 15.6 20.5   3.6   1.6 21.5 14.5 20.5 18.5
Heracleum sphondylium   4.6 25.5 27.5   1.6   5.6 23.5   2.6 18.5
Urtica dioica   6.6   1.6 26.5 28.5   1.6 12.5 19.5 19.5
Galium saxatile 25.5 20.5 23.5 21.5   2.6 12.5 19.5 19.5
Trifolium dubium ? 29.5 14.6 13.6 ? 11.5 27.5 19.5
Rumex acetosella ? ? 26.5 23.5 24.5 24.4 14.5 22.5
Veronica beccabunga   3.6 31.5 27.5 28.5   2.6 21.5 26.5 22.5
Maianthemum bifolium ? ? ? ? ? <16.6   30.5 22.5
Potamogeton natans ? ? ? 10.6 23.6 26.4 20.5 23.5
Hieracium pilosella ? ?   9.6 29.5 10.6   4.5 26.5 25.5
Trifolium repens ?   2.6   5.6 31.5   8.6 24.5 27.5 25.5
Scrophularia nodosa 11.6 28.5   6.6 28.5   2.6 15.5 30.5 25.5
Myosotis secunda ? ? 11.6   7.6   6.6 22.5   3.6 25.5
Rubus idaeus   3.6 28.5 10.6   5.6   8.6 11.5   2.6 26.5
Aegopodium podagraria 11.7 18.6 16.6   6.6 14.6 22.5 26.5 27.5
Polygonatum verticillatum ?   2.6 25.5   1.6   5.6 14.5 27.5 27.5
Dactylorhiza maculata 19.5 22.5 22.5 19.5 18.5 18.5 27.5 27.5
Leucanthemum vulgare 26.5 15.5 24.5 29.5   4.6   1.5 31.5 29.5
Geum urbanum 17.6 13.6 12.6   3.6 10.6 20.5   2.6 29.5
Senecio vulgaris ? 11.7 18.7 24.6 22.6 15.5 23.6 29.5
Lychnis flos-cuculi 20.5 27.5 29.5   1.6   3.6 14.5 29.5 30.5
Crepis biennis ?   6.7 21.7 18.6 29.6 20.5   1.6 31.5
June
Galium aparine ? 11.6 11.6 13.6 16.6 23.5 26.5   1.6
Veronica officinalis   3.6   7.6   7.6   1.6 10.6 <3.6 30.5   2.6
Rubus fruticosus   9.6   6.6 12.6 15.6 10.6 23.5   3.6   2.6
Stellaria graminea 28.6   1.6 10.6   7.6 13.6 25.5   8.6   2.6
Rumex obtusifolius   4.7 14.6 10.6 19.6 16.5 17.4   2.6   3.6
Cirsium palustre   6.6 28.5 16.5   1.6   9.6 13.5   2.6   3.6
Epilobium montanum 17.6 10.6   9.6 13.6 16.6 25.5   2.6   3.6
Ranunculus ololeucos   8.6 25.5 11.5 25.5 -   4.5   3.6   3.6
Hieracium murorum 20.7   6.7   8.6 21.6 16.6 22.5   3.6   3.6
Rhinanthus minor   8.6   4.6 30.5   1.6 12.6 <3.6   3.6   3.6
Plantago major 13.7 21.6 26.6 26.6 23.6   6.6   2.6   4.6
Silene dioica ? 26.6 15.6 14.6 13.6 12.10   2.6   4.6
Potentilla palustris   1.6   4.6   6.6   9.6 16.6 25.5   3.6   4.6
Crepis paludosa   1.6   2.6   3.6 10.6 20.6 25.5   4.6   4.6
Galium uliginosum 27.6 24.6 25.6 22.6 24.6 12.6   4.6   4.6
Galium palustre 15.6 15.6 16.6 19.6 17.6 13.6   4.6   4.6
Bunias orientalis ? ? 29.6 ?   4.6 ? ? ?
Vicia cracca   3.6   5.6   6.6 13.6 16.6 12.5   3.6   5.6
Digitalis purpurea   8.6   9.6 12.6 13.6 16.6 25.5   3.6   5.6
Chaerophyllum temulentum ? 25.6 26.6 ? 22.6 16.6   3.6   5.6
Achillea millefolium 16.6 10.6 11.6   8.6   6.6 23.5   8.6   5.6
Lysimachia nemorum ?   7.5 17.5 27.5   3.6 <22.5     7.6   6.6
Melampyrum pratense ? 18.6 14.6   9.6 13.6 22.5   7.6   6.6
Fumaria officinalis 25.6 30.6 24.7 31.5   3.6 - -   7.6
Leontodon hispidus ? ? ? ? ? ?   8.6   8.6
Chamomilla suaveolens   4.7   4.6   6.6 10.6 17.6 12.5 17.6   8.6
Linaria vulgaris 17.6 20.6   1.7 14.6 16.6   3.6 26.6 10.6
Lathyrus pratensis 16.6 10.6 12.6 17.6 22.6 15.6   7.6 12.6
Silene latifolia 16.6 <18.6   15.6 11.6 13.6 - - -
Valeriana officinalis 16.6 11.6 15.6 22.6 20.6   5.6 10.6 13.6
Lapsana communis 24.6 11.6 26.6 21.6 22.6   3.6 11.6 13.6
Chenopodium album ? ? 31.8   9.7 22.6   4.6 17.6 13.6
Galeopsis tetrahit   4.7 21.6 28.6 26.6 21.6   7.6 17.6 13.6
Hieracium umbellatum ?   9.7 21.7 21.6 16.6 ? 26.6 13.6
Sinapis arvensis ?   1.6 11.11 ? 13.6 ? ? ?
Vicia sativa ? ? ? ? <3.7 14.6 ? ?
Polygonatum multiflorum ? <15.6   - - - - - -
Crepis capillaris 13.7 14.6 31.5 29.5 16.6 <3.6 15.6 ?
Centaurea jacea 25.6 18.6 26.6 21.6 22.6   3.6 18.6 17.6
Stachys sylvatica 19.6   6.6 12.6 12.6 16.6 12.6 18.6 17.6
Stachys officinalis   4.7 24.6 28.6 27.6 24.6   8.6 29.6 17.6
Raphanus raphanistrum ? ?   9.6   2.6 ? <24.5   17.6 ?
Solidago virgaurea ?   5.7 21.7   4.7 16.7 18.6 ? ?
Senecio jacobaea 22.6 <9.7   5.7   4.7 27.6   4.7 15.6 19.6
Prunella vulgaris   4.7 25.6   4.7 26.6 23.6 19.6 18.6 19.6
Polygonum aviculare ? ? ? 27.6   4.7 25.6 26.6 19.6
Papaver rhoeas ? ? ? ? ? 19.6 ? ?
Torilis japonica ? ? ? <4.8 22.6 ? ? ?
Medicago lupulina ? ?   7.6   6.6 23.6 24.5   9.6 23.6
Papaver dubium ? ? ? 20.6 15.6 19.6 ? 23.6
Polygonum minus ? ? ? ? ?   6.8 10.9 23.6
Lotus uliginosus 29.6 18.6 23.6 24.6 27.6 14.6 18.6 26.6
Filipendula ulmaria 27.6 24.6 19.7 27.6   3.7 24.6 26.6 26.6
Epilobium ciliatum ? ? ? 20.6 16.6 19.6 30.5 29.6
Matricaria perforata 23.7 21.6 26.6 17.6 16.6 15.5 11.6 29.6
Tanacetum parthenium 23.7   3.7   5.7 11.7 10.7 16.6 11.6 29.6
Galium mollugo 23.6 14.6 29.6 24.6 22.6   3.6 16.6 29.6
Epilobium angustifolium 19.6 13.6 28.6 24.6   1.7   9.6 25.6 29.6
Malva moschata   4.7 23.6   4.7 28.6 20.6 10.6 25.6 29.6
Hypericum maculatum ? 24.6 25.6 28.6 25.6 29.6   1.7 29.6
Scutellaria galericulata ? ? ? ? ? 22.6 ? 30.6
Epilobium palustre 25.6 16.6 26.6 20.6 17.6 17.6 29.6 30.6
Angelica sylvestris 27.6 24.6   4.7 27.6   3.7 17.6   5.7 30.6
Wahlenbergia hederacea <17.8     7.7 27.7 12.7   8.7 19.7 12.7 30.6
Vicia hirsuta ?   7.7 20.7 24.6 29.6 20.5 30.6 ?
Galinsoga ciliata ? ? ?   9.8 18.7 30.6 ? ?
July
Narthecium ossifragum 10.7 24.6 21.7   1.7   1.7 30.6   1.7   4.7
Succisa pratensis 30.7 11.7 17.7 12.7 15.7   6.7 12.7   4.7
Euphrasia officinalis 31.7 23.7 22.7 <1.8 27.7   8.7 13.7   4.7
Spergularia rubra ? ?   9.8   3.7 18.6   3.8   1.8   4.7
Chrysanthemum segetum <13.8   21.6   5.7 21.6 22.6 14.6   4.7 ?
Hypericum perforatum 26.6 24.6 26.6 27.6 27.6 14.6 25.6   6.7
Cirsium arvense   4.7 25.6 16.7 30.6   2.7 22.6 26.6   6.7
Campanula rotundifolia   7.7 20.6 10.7 27.6 21.6 21.6 30.6   6.7
Leontodon autumnalis 19.7   2.8 28.7 <1.8 29.7   6.7 26.6   7.7
Sonchus oleraceus ? ? ?   3.7 10.7   6.6   3.6   9.7
Hypericum pulchrum 24.6 18.6 28.6 30.6 23.6 14.6   1.7   9.7
Cirsium vulgare 18.7 11.7 16.7   8.7   2.7 28.6   6.7   9.7
Medicago sativa ? ? ? ? ? ? ?   9.7
Polygonum persicaria 19.7 18.6 12.7   3.7 30.6   4.6 28.6 13.7
Hypochaeris radicata 18.7 24.6 10.7 15.6 10.7 13.6 29.6 13.7
Teucrium scorodonia   4.7 25.6 17.7   5.7   6.7 24.6   5.7 13.7
Galeopsis bifida ? 11.7 17.7 12.7 15.7   9.7   5.7 13.7
Senecio nemorensis 18.7 16.7 23.7   5.7 10.7   8.7   9.7 13.7
Mentha arvensis 23.7 11.7 17.7 10.7 13.7 19.7 12.7 13.7
Drosera rotundifolia 29.7 10.7 27.7 12.7 13.7 13.7 25.7 13.7
Trifolium hybridum ? ? ? ? <8.7 21.6 23.6 14.7
Epilobium tetragonum   8.7 24.6 26.6 24.6 23.6 24.6 26.6 14.7
Hypericum humifusum 27.8 15.6 28.6 20.6 ? 17.6 14.7 14.7
Listera ovata ? ? ? ? ? ? <15.7   ?
Tanacetum vulgare 10.7   6.7 19.7 30.6 10.7 27.6   2.7 15.7
Calystegia sepium 23.7   7.7 11.9 <1.8 20.7 22.7 25.7 15.7
Achillea ptarmica 18.7 11.7 16.7   9.7 10.7 <3.8   4.8 15.7
Epipactis helleborine ? 11.7   1.8 20.7 16.7 ? ? ?
Sonchus asper ?   5.7 16.7   3.7   2.7 <3.6 13.7 20.7
Thymus pulegioides ? ?   2.8   1.7 16.7 17.7 22.7 -
Circaea lutetiana ? ? ? ? ? <5.8 13.7 24.7
Lysimachia vulgaris 28.7   6.7 19.7   3.7   3.7   9.7 29.6 25.7
Senecio aquaticus ? ? ? ? ? ? ? 28.7
August
Artemisia vulgaris 31.7   1.8   3.8   3.8 29.7   1.8 21.7   1.8
Solidago gigantea ? ? ? <14.9 27.7 19.7 25.7   1.8
Pimpinella saxifraga ? ? <27.10 ? ? ? <4.8 ?
Polygonum hydropiper ? ? ? ? 26.8   1.8 16.8 10.8
Mentha suaveolens ? ? ? 23.8 18.8 - 30.8 11.8
Epilobium hirsutum ? ? ? ? ? ? <11.8   ?
Polygonum lapathifolium ? ? 17.8   5.8 29.6 28.8 ? ?
Impatiens glandulifera ? ? <11.9   <1.8 18.8 28.7 <31.8   <1.9
September
Senecio paludosus ? ? ? <10.8 25.10   3.9 ? ?
Mentha spicata ? 15.8   3.9 22.8 18.8 30.8 10.9   6.9
October
Spergula arvensis ? ? ? <7.10 ? ? ? ?

Translations

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