February
Hamamelis vernalis
March
Acer saccharinum
Corylus species
Hamamelis japonica
Hamamelis mollis
Hamamelis x intermedia
Salix species
Galanthus and Crocus
Early April
Acer rubrum
Alnus incana
Alnus rugosa
Cornus mas
Cornus officinalis
Daphne mezereum
Erica carnea
Forsythia ovata
Jasminum nudiflorum
Lonicera praeflorens
Magnolia zenii
Populus species
Prunus davidiana
Ulmus americana
Viburnum farreri
Mid April (back to top)
Abeliophyllum distichum
Acer cissifolium
Betula species
Cercidiphyllum japonicum
Corylopsis species
Dirca palustris
Epigaea repens
Forsythia europaea
Forsythia x intermedia
Forsythia suspensa var. sieboldii
Forsythia viridissima
Lindera benzoin
Lonicera fragrantissima
Lonicera x purpusii
Lonicera standishii
Pieris japonica
Rhododendron dauricum
Rhododendron mucronulatum
Shepherdia argentea
Late April
Acer circinatum
Acer diabolicum f. purpurascens
Acer platanoides
Amelanchier lamarckii
Amelanchier laevis
Amelanchier spicata
Buxus microphylla
Chamaedaphne calyculata
Euptelea polyandra
Lonicera altmanni var. pilosiuscula
Lonicera tenuipes
Magnolia denudata
Magnolia kobus
Magnolia kobus var. borealis
Magnolia loebneri
Magnolia salicifolia
Magnolia stellata
Malus baccata var. mandschurica
Myrica gale
Pieris floribunda
Poncirus trifoliata
Prunus armeniaca
Prunus canescens
Prunus cerasifera
Prunus concinna
Prunus cyclamina
Prunus x dasycarpa
Prunus x domestica
Prunus incisa and varieties
Prunus x juddii
Prunus mandshurica
Prunus nipponica
Prunus sargentii
Prunus subhirtella and varieties
Prunus tomentosa
Prunus triloba
Prunus x yedoensis
Spiraea prunifolia
Vinca minor and varieties
Early May (back to top)
Acer campestre
Acer saccharum
Amelanchier x grandiflora
Amelanchier humilis
Amelanchier sanguinea
Amelanchier stolonifera
Andromeda glaucophylla
Andromeda polifolia
Berberis dictyophylla
Carpinus carolinian
Chaenomeles cathayensis
Chaenomeles japonica and varieties
Chaenomeles speciosa
Chamaecytisus glaber
Crataegus arnoldiana
Cytisus decumbens
Cytisus x beanii
Dandelion (Taraxacum species)
Enkianthus perulatus
Exochorda giraldii
Ledum groenlandicum
Lonicera canadensis
Lonicera saccata
Lonicera villosa
Magnolia x soulangeana and varieties
Mahonia species
Malus x adstringens and varieties
Malus x arnoldiana
Malus x astracanica
Malus x astrosanguinea
Malus baccata
Malus brevipes
Malus floribunda
Malus halliana and varieties
Malus hupehensis
Malus x micromalus
Malus prunifolia and varieties
Malus pumila 'Niedzwetzkyana'
Malus x purpurea and varieties
Malus x robusta and varieties
Malus schiedeckeri
Malus x soulardii
Malus spectabilis and varieties
Malus sylvestris
Malus x zumi and varieties
Myrica pensylvanica
Narcissus species
Nemopanthus mucronatus
Orixa japonica
Oemleria cerasiformis
Pachysandra terminalis
Phlox subulata
Primula elatior var. superba
Primula x polyantha
Prinsepia sinensis
Prunus alleghaniensis
Prunus americana
Prunus avium
Prunus x blirexana and varieties
Prunus hortulana
Prunus incana
Prunus instititia
Prunus japonica var. nakaii
Prunus maritima
Prunus padus and varieties
Prunus pensylvanica
Prunus persica and varieties
Prunus pumila var. susquehanae
Prunus serrulata and varieties
(Many double-flowered forms starting to bloom and continuing
for two weeks at least, depending on the variety, some being slightly
earlier than others.)
Prunus sieboldii
Prunus texana and varieties
Pyrus communis and varieties
Rhododendron mucronatum
Rhus aromatica
Ribes alpinum
Ribes aureum
Ribes x gordonianum
Ribes odoratum
Spiraea x arguta
Spiraea thunbergii
Syringa x hyacinthiflora and varieties
Syringa oblata var. dilatata
Tulipa species
Viburnum alnifolium
Viburnum buddleifolium
Viburnum burejaeticum
Viola species
Xanthorhiza simplicissima
Zanthoxylum americanum
Mid May (back to top)
Acer palmatum
Aesculus bushii
Aesculus carnea
Aesculus glabra
Aesculus glabra var. arguta
Aesculus hippocastanum
Aesculus x neglecta
Akebia quinata
Akebia trifoliata
Alyssum gemonense
Alyssum saxatile
Amelanchier sanguinea
Amelasorbus jackii
Aristolochia manshuriensis
Aurinia petraea
Aurinia saxatilis
Berberis dielsiana
Berberis julianae
Berberis koreana
Berberis soulieana
Berberis thunbergii and varieties
Berberis vernae
Berberis vulgaris
Calycanthus floridus
Caragana arborescens
Caragana frutex
Caragana x sophorifolia
Cercis canadensis
Cercis chinensis
Chamaecytisus purpureus
Cornus florida
Cydonia oblonga
Cytisus x praecox
Cytisus purgans
Cytisus scoparius
Daphne altaica
Daphne caucasica
Daphne cneorum
Daphne longilobata
Davidia involucrata
Deutzia grandiflora
Elaeagnus multiflora
Elaeagnus umbellata
Enkianthus campanulatus
Euonymus alatus
Euonymus latifolius
Exochorda korolkowii
Exochorda x macrantha
Exochorda racemosa
Fothergilla species
Halesia monticola
Halesia tetraptera
Iberis carnosa
Kerria japonica
Leitneria floridana
Lonicera alpigena
Lonicera x bella
Lonicera chrysantha
Lonicera x muendeniensis
Lonicera x muscaviensis
Lonicera syringantha
Lonicera syringantha wolfii
Lonicera thibetica
Lonicera xylosteum
Magnolia fraseri
Magnolia liliflora 'Nigra'
Malus bracteata
Malus glaucescens
Malus ioensis
Malus sargentii
Malus sieboldi and varieties
Papaver orientale
Paulownia tomentosa
Prinsepia uniflora
Prunus cerasus
Prunus maackii
Prunus virginiana
Quercus species
Rhododendron albrechtii
Rhododendron canadense
Rhododendron fraseri
Rhododendron luteum
Rhododendron minus
Rhododendron x obtusum 'Amoenum'
Rhododendron x obtusum arnoldianum
Rhododendron x obtusum 'Hinodegiri'
Rhododendron x obtusum 'Japonicum'
Rhododendron x obtusum 'Kaempferi'
Rhododendron racemosum
Rhododendron reticulatum
Rhododendron schlippenbachii
Rhododendron vaseyi
Rhododendron yedoense
Rhododendron yedoense var. poukhanense
Rhodotypos scandens
Ribes sanguineum
Sambucus pubens
Sibiraea altaensis
Sorbus aucuparia
Spiraea x cinerea
Spiraea gemmata
Spiraea hypericifolia
Spiraea inflexa
Spiraea media
Spiraea mollifolia
Spiraea oxyodon
Spiraea x pikoviensis
Spiraea prunifolia
Spiraea pubescens
Syringa vulgaris and varieties
(With over 300 varieties, it is impossible to list them here
as early, medium and late, although some might be so listed.)
Vaccinium angustifolium var. laevifolium
Viburnum bitchiuense
Viburnum var. burkwoodii
Viburnum carlesii
Viburnum var. juddii
Viburnum lantana
Weigela 'Conquerant'
Weigela 'Fleur de Mai'
Weigela 'Floreal'
Weigela florida var. venusta
Weigela 'Gracieux'
Wisteria venusta
Late May
Acer tataricum ssp. ginnala
Aronia arbutifolia
Aronia melanocarpa
Aronia x prunifolia
Asimina triloba
Berberis amurensis
Berberis circumserrata
Berberis gagnepaini
Berberis verruculosa
Berchemia racemosa
Buttercup (Ranunculus spp.)
Caragana maximowicziana
Celastrus flagellaris
Celastrus orbiculatus
Celastrus scandens
Cornus alternifolia
Cornus controversa
Cornus stolonifera
Coronilla etherus ssp. emeroides
Cotoneaster adpressus
Cotoneaster apiculatus
Cotoneaster divaricatus
Cotoneaster foveolatus
Cotoneaster nitens
Cotoneaster racemiflorus
Crataegus crus-galli
Crataegus laevigata
Crataegus pruinosa
Crataegus punctata
Crataegus succulenta
Daphne giraldi
Daylilies (Hemerocallis spp.)
Deutzia x candelabra
Deutzia gracilis
Deutzia x kalmiiflora
Deutzia x lemoinei and varieties
Deutzia x rosea and varieties
Dipelta floribunda
Enkianthus deflexus
Enkianthus subsessilis
Fendlera wrightii
Fontanesia phillyreoides ssp. fortunei
Gaylussacia baccata
Genista pilosa
Iberis sempervirens
Juglans ailanthifolia
Laburnum species
Leucothoe racemosa
Lonicera x amoena
Lonicera korolkowii
Lonicera maackii
Lonicera maximowiczi var. sachalinensis
Lonicera morrowii
Lonicera tatarica and varieties
Magnolia acuminata var. subcordata
Magnolia x soulangeana 'Lennei'
Magnolia tripetala
Magnolia x wiesneri
Malus angustifolia
Malus coronaria
Malus coronaria 'Charlottae'
Malus ioensis 'Plena'
Malus toringoides
Neillia sinensis
Paeonia suffruticosa
Petteria ramentacea
Philadelphus hirsutus
Philadelphus schrenkii var. jacki
Photinia villosa
Physocarpus amurensis
Physocarpus monogynus
Potentilla fruticosa and varieties
Prunus laurocerasus 'Schipkaensis'
Prunus serotina
Rhamnus catharticus
Rhododendron atlanticum
Rhododendron austrinum periclymenoides
Rhododendron catawbiense 'Boule De Neige'
Rhododendron catawbiense 'Charles Dickens'
Rhododendron catawbiense 'Mont Blanc'
Rhododendron fortunei 'Duke of York'
Rhododendron japonicum
Rhododendron molle hybrids
Rhododendron nudiflorum
Rhododendron smirnowii
Robinia elliottii
Robinia fertilis
Robinia x slavinii
Rosa ecae
Rosa primula
Rosa x anthina
Rosa x anthina f. hugonis
Rubus deliciosus
Schisandra chinensis
Smilax rotundifolia
Spiraea blumei
Spiraea cantoniensis
Spiraea x multiflora
Spiraea nipponica
Spiraea nipponica
Spiraea trilobata
Spiraea x vanhouttei
Staphylea colchica
Staphylea trifolia
Symplocus paniculata
Syringa x chinensis
Syringa julianae
Syringa meyeri
Syringa microphylla
Syringa patula
Syringa x persica
Syringa pinetorum
Syringa potaninii
Syringa pubescens
Syringa wolfii
Syringa yunnanensis
Tamarix parviflora
Thymus serpyllum
Vaccinium corymbosum
Viburnum lentago
Viburnum macrocephalum 'Sterile'
Viburnum opulus 'Roseum'
Viburnum plicatum f. tomentosum
Viburnum rafinesquianum
Viburnum rhytidophyllum
Viburnum rufidulum
Viburnum sieboldii
Viburnum tomentosum 'Sterile'
Viburnum trilobum
Viburnum wrightii
Weigela 'Dame Blanche'
Weigela 'Lavallei'
Wisteria floribunda and varieties
Wisteria x formosa
Wisteria sinensis and varieties |
Early June
Abelia engleriana
Actinidia arguta
Buddleja alternifolia
Calycanthus floridus
Ceanothus ovatus
Chionanthus retusus
Chionanthus virginicus
Cladrastis lutea
Cornus alba
Cornus kousa
Cornus rugosa
Cotinus coggygria
Daphne pontica
Decaisnea fargesii
Elaeagnus angustifolia
Euonymus atropurpureus
Euonymus bungeanus
Genista hispanica
Genista tinctoria
Halimodendron halodendron
Helianthemum nummularium
Hydrangea heteromalla
Hydrangea petiolaris
Idesia polycarpa
Ilex opaca
Indigofera amblyantha
Jamesia americana
Kolkwitzia amabilis
Leucothoe catesbaei
Lonicera ruprechtiana
Magnolia sieboldii
Periploca graeca
Phellodendron amurense
Philadelphus caucasicus
Philadelphus 'Cole's Glorious'
Philadelphus coronarius
Philadelphus x cymosus 'Banniere'
Philadelphus x cymosus 'Conquete'
Philadelphus floridus
Philadelphus laxus
Philadelphus x lemoinei 'Coupe d'Argent'
Philadelphus x lemoinei 'Manteau de Hermine'
Philadelphus magdalenae
Philadelphus maximus
Philadelphus pekinensis
Philadelphus "Rosace"
Philadelphus tomentosus
Philadelphus triflorus
Physocarpus opulifolius
Physocarpus opulifolius var. intermedius
Rhamnus davurica
Rhamnus frangula
Rhododendron 'Arbutifolium'
Rhododendron calendulaceum
Rhododendron catawbiense and varieties
Rhododendron concinnum
Rhododendron ferrugineum
Rhododendron minus
Rhododendron 'Mrs. C.S. Sargent'
Rhododendron 'Purpureum Grandiflorum'
Rhus potaninii
Robinia hartwigii
Robinia hispida
Robinia pseudoacacia
Rosa acicularis
Rosa bella
Rosa blanda
Rosa foetida 'Bicolor'
Rosa glauca
Rosa x harisonii
Rosa x l'heritierana
Rosa pimpinellifolia
Rosa roxburghii
Rosa rugosa and varieties
Rosa willmottiae
Sassafras albidum
Sophora davidii
Spiraea x blanda
Spiraea chamaedryfolia
Spiraea henryi
Spiraea trichocarpa
Spiraea wilsonii
Staphylea pinnata
Styrax americanum
Styrax japonicum
Styrax obassia
Syringa x henryi and varieties
Syringa josikaea and varieties
Syringa komarowii
Syringa x prestoniae and varieties
Syringa reflexa
Syringa sweginzowii
Syringa tomentella
Syringa villosa
Vaccinium species
Viburnum cassinoides
Viburnum dentatum
Viburnum dilatatum and varieties
Viburnum hupehense
Viburnum lobophyllum
Viburnum opulus
Viburnum prunifolium
Viburnum sargentii
Weigela florida
Wisteria macrostachys
Mid June
Amorpha fruticosa
Amorpha glabra
Castanea pumila
Catalpa speciosa
Ceanothus americanus
Cornus amomum
Cornus bretschneideri
Cornus coreana
Cornus racemosa
Cotinus obovatus
Cotoneaster dielsianus
Cotoneaster horizontalis
Cotoneaster multiflorus
Crataegus phaenopyrum
Deutzia x hybrida 'Contraste'
Deutzia x hybrida 'Magicien'
Deutzia x magnifica
Diospyros virginiana
Euonymus europaeus
Euonymus fortunei 'Vegetus'
Gymnocladus dioica
Hydrangea
Ilex glabra
Ilex verticillata
Indigofera decora
Indigofera kirilowi
Indigofera potanini
Kalmia angustifolia
Kalmia latifolia
Ligustrum amurense
Ligustrum x ibolium
Ligustrum ibota
Ligustrum obtusifolium
Ligustrum obtusifolium var, regelianum
Ligustrum ovalifolium
Ligustrum vulgare
Liriodendron chinense
Liriodendron tulipifera
Lonicera x brownii
Lonicera iberica
Lonicera japonica 'Halliana'
Lonicera periclymenum
Lyonia ligustrina
Lyonia mariana
Philadelphus coronarrus 'Zeyheri'
Philadelphus x cymosus
Philadelphus x cymosus 'Bouquet Blanc'
Philadelphus x cymosus 'Monster'
Philadelphus inodorus
Philadelphus inodorus var. grandiflorus
Philadelphus x lemoinei 'Avalanche'
Philadelphus x lemoinei 'Innocence'
Philadelphus x lemoinei and cultivars
Philadelphus microphyllus
Philadelphus polyanthus cultivars
Philadelphus pubescens
Philadelphus purpurascens
Philadelphus x splendens
Philadelphus virginalis cultivars
Pyracantha coccinea 'Lalandi'
Rhododendron cv 'Album Elegans'
Rhododendron cv 'Album Grandiflorum'
Rhododendron arborescens
Robinia viscosa
Rosa x alba
Rosa arvensis
Rosa canina
Rosa x centifolia
Rosa x damascena
Rosa davidii
Rosa foetida
Rosa gallica
Rosa helenae
Rosa x jacksonii
Rosa micrantha
Rosa moyesii
Rosa multiflora
Rosa multiflora var. cathayensis
Rosa rubiginosa
Rosa virginiana
Rosa webbiana
Rubus allegheniensis
Sambucas nigra
Spiraea veitchii
Spiraea x watsoniana
Stephanandra incisa
Symphoricarpos albus var. laevigatus
Syringa pekinensis
Syringa reticulata
Syringa reticulata var. mandschurica
Tilia platyphyllos
Viburnum acerifolium
Viburnum dentatum var. pubescens
Viburnum molle
Weigela Florida 'Eve Rathke'
Zenobia pulverulenta
Late June
Actinidia polygama
Ailanthus altissima
Ceanothus x pallidus var. roseus
Cornus macrophylla
Cotoneaster salicifolius
Deutzia x myriantha
Deutzia scabra 'Plena'
Deutzia staminea
Diervilla sessilifolia
Dorycnium hirsutum
Eleutherococcus sieboldianus
Genista anglica
Ilex crenata
Indigofera decora
Itea virginica
Lavandula augustifolia
Lonicera henryi
Philadelphus x purpureomaculatus 'Belle Etoile'
Philadelphus x burkwoodi
Philadelphus x virginalis and varieties
Rhododendron maximum
Rhus typhina
Rosa multibracteata
Sambucas canadensis
Schizophragma hydrangeoides
Sorbaria sorbifolia
Spiraea x billardii
Spiraea douglasii
Spiraea douglasii ssp. menziesii
Spiraea japonica
Spiraea japonica 'Bumalda'
Spiraea latifolia
Spiraea cv 'Margaritae'
Spiraea x pyramidata
Spiraea tomentosa
Spiraea virginiana
Stephanandra tanakae
Stewartia rostrata
Stewartia sinensis
Tripterygium regelii
Early July (back to top)
Buddleja japonica
Callicarpa dichotoma
Callicarpa japonica
Cionura erecta
Cytisus nigricans
Holodiscus discolor
Hydrangea arborescens
Hydrangea arborescens 'Grandiflora'
Hypericum kalmianum
Hypericum patulum var. henryi
Lycium species
Maackia amurensis
Rhododendron viscosum
Rhus glabra
Rosa setigera
Rubus x odorata
Spiraea salicifolia
Stewartia pseudocamellia
Stewartia var. koreana
Tilia euchlora
Tilia 'Petiolaris'
Tilia tomentosa
Viburnum setigerum 'Aurantiacum'
Mid July
Aesculus parviflora
Albizia julibrissin var. rosea
Amorpha canescens
Ampelopsis aconitifolia
Ampelopsis cordata
Berberis aggregata
Campsis radicans
Clematis x jackmanii
Cyrilla racemiflora
Diervilla lonicera
Hydrangea arborescens ssp. discolor
Hydrangea arborescens ssp. radiata
Hydrangea paniculata 'Praecox'
Hydrangea quercifolia
Hydrangea serrata
Hypericum x arnoldianum
Hypericum densiflorum
Hypericum frondosum
Koelreuteria paniculata
Ligustrum quihoui
Lonicera x heckrottii
Lonicera sempervirens
Rosa wichuraiana
Rhodendron arborescens
Stewartia ovata
Symphoricarpos x chenaultii
Symphoricarpos orbiculatus
Tamarix pentandra
Tamarix ramosissima
Yucca filimentosa
Late July
Abelia schumannii
Ampelopsis brevipedunculata
Aralia spinosa
Buddleja albiflora
Calluna vulgaris and varieties
Cephalanthus occidentalis
Clethra acuminata
Clethra alnifolia
Clethra barbinervis
Eleutherococcus senticosus
Hypericum prolificum
Kalopanax septemlobus
Lespedeza bicolor
Oxydendrum arboreum
Rhodendron prunifolium
Sorbaria kirilawii
August (back to top)
Abelia x grandiflora
Aralia chinensis
Aralia elata
Buddleja davidii varieties
Caryopteris incana
Clematis virginiana
Clematis vitalba
Clerodendrum trichotomum
Hibiscus syriacus varieties
Hydrangea macrophylla
Hydrangea paniculata
Hydrangea paniculata 'Grandiflora'
Hypericum x dawsonianum
Lagerstroemia indica
Lespedeza cyrtobotrya
Polygonum aubertii
Rhus copallina
Sophora japonica
Vitex agnus-castus
Vitex incisa
September (back
to top)
Baccharis halimifolia
Clematis paniculata
Elsholtzia stauntonii
Franklinia alatamaha
October (back to top)
Hamamelis virginiana
Lespedeza |