Cook's Landscape Rejuvenation Consulting & Designs

A GUIDE TO PERENNIALS IN BLOOM MONTH BY MONTH

Bloom times in this page are listed for Canadian Zones 5 and 6

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April May June July August September October

 

APRIL
Botanical Name Common Name
Adonis Adonis
Arabis 'alpina' Wall Cress
Arabis 'arendsii' Wall Cress
Arabis 'caucasia' Wall Cress
Arabis 'sturii' Wall Cress
Anemone 'nemorosa' Windflower
Aquilegia 'canadensis' Columbine
Allium 'moby' Ornamental Onion
Aubretia 'deltoidea' Rock Cress
Aurinia 'saxitilia' Alyssum / Basket of Gold
Bellis perennis English Daisy
Bergenia 'cordifolia' Bergenia
Brunnera Brunnera
Caulophyllum Cohosh (Black or Blue)
Claytonia Spring Beauty (a woodland flower)
Dicentra Bleeding Heart
Erigeron Fleabane
Erythronum 'americana' Trout Lily or Dog Toothed Violet
Euphorbia Spurge
Fritillaria Fritillaria
Glechoma Creeping Charlie / Nepeta
Hepatica Hepatica
Hedyotis Mountain Bluets
Hyacinthus orientalis Hyacinth
Iris pumila Dwarf Bearded Iris
Leucojum Snowflake
Mertensia 'virginica' Virginia Bluebells
Muscari Grape Hyacinth
Narcissus Narcissus (includes Daffodils)
Ornithogalum Star of Bethlehem
Omphalodis Navel Wort
Phlox subulata Creeping Phlox or Moss Phlox
Primula Primrose
Pulmonaria Lungwort
Tulipa Tulip
Vinca minor Periwinkle (ground cover)
Viola tricolor Johnny Jump-Up or Heart's Ease
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MAY

Botanical Name

Common Name

Aethionema Stone Cress
Ajuga Bugle Flower
Amsonia tabernaemontana Texas Blue Star
Aquilegia hybrids Columbine
Aquilegia alpina Alpine Columbine (for rock gardens)
Armeria Thrift
Asarum Wild Ginger
Aster alpinus Alpine Aster
Astrantia Masterwort
Baptisia 'australis' Blue FalseIndigo
Baptisia 'leucantha' Wild Indigo
Camassia quamash Camass
Campanula Bell Flower
Cerastium Snow in Summer
Cheiranthus Siberian Wallflower
Chrysogonum Golden Star
Convallaria Lily of the Valley
Corydalis lutia Corydalis
Cypripedium Ladys Slippers
Dianthus alpinus Alpine Pink
Dianthus gratianopolitanus 'Lacinated White' White Moss Pink
Dianthus plumarius Cottage Pinks
Dicentra - spectabilis Bleeding Heart
Dicentra - formosa Bleeding Heart
Dodecatheon Shooting Star
Doronicum Leopards Bane
Dryas Mountain Avens
Endymion scilla Blue Bell
Epimedium Barrenwort
Erodium Storksbill
Euphorbia Cushion Spurge
Galium Sweet Woodruff
Geranium sanguineum Cranesbill
Geum Avens
Iberis Candytuft
Iris Iris
Lamiastrum False Lamium or Yellow Archangel
Lamium False Salvia
Linum Flax
Lunaria Honesty / Money Plant
Lychnis 'alpina' Arctic Campion
Myosotis Forget-Me-Not
Paeonia Peony
Papaver 'alpina' Alpine Poppy
Papaver 'orientale' Oriental Poppy
Papaver 'naudicale' Iceland Poppy
Polemonium Jacob's Ladder
Polygonatum Solomon's Seal
Primula 'japonica' Japanese Primrose
Prunella Self Heal
Saponaria Soapwort
Sedum 'acre' Six-sided Sedum
Sisyrhinchium Blue-eyed Grass
Sorbaria False Spirea
Thermopsis False Lupin
Tiarella Foam Flower
Tradescantia 'andersoniana' Spiderwort
Trollius Globeflower
Tulipa Tulip
Veronica 'dabneyi' Pink Speedwell
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JUNE
Botanical Name Common Name
Achillea Yarrow
Agrostemma Corn Cockle
Alchemilla Ladys Mantle
Allium Ornamental Onion
Anchusa Italian Bugloss
Antennaria Pussytoes
Anthemis Marguerite
Aquilegia flabellata Japanese Fan Columbine
Aruncus Goatsbeard
Asphodeline King's Spear
Astilbe False Spirea
Campanula 'carpatica' Carpathian Bellflower
Campanula 'glomerata' Clustered Bellflower
Campanula 'perscifolia' Peach leaved Bellflower
Campanula 'rotundifolia' Bluebells of Scotland
Catanche Cupid's Dart
Centaurea 'montana' Perennial Cornflower
Centranthus 'rubra' Red Valerian
Chrysanthemum 'superbum' Shasta Daisy
Chrysogonum Golden Star
Coreopsis Coreopsis
Delphinium Delphinium
Dictamnus Gas Plant
Digitalis Foxglove
Eremurus Foxtail Lily
Filipendula Meadowsweet
Geum Avens
Gypsophila Baby's Breath
Gaillardia Blanket Flower
Gaura 'lindheimeri' Gaura
Geranium 'Johnsons Blue' Cranesbill
Geranium 'sanguineum' Bloody Cranesbill
Helianthemum Rock Rose / Sun Rose
Hemerocallis Day Lily
Hesperis Sweet Rocket
Heuchera Coral Bells
Heucherella Foamy Bells
Iris Iris
Jasione 'laevis' Shepherd's Bit
Kniphofia Red Hot Poker
Lavendula Lavender
Lewisia 'cotyledon' Lewisia
Leontopodium 'alpinum' Edelweiss
Ligularia Ligularia
Lilium 'asiatic' Asiatic Lilies
Physostegia Obedient Plant
Platycodon Balloon Flower
Polemonium caerruleum Jacob's Ladder
Polygonatum Solomon's Seal
Polygonum Fleece Flower
Potentilla Cinquefoil
Primula 'Bressingham strains' Primrose
Primula 'florindae' Himalayan Cowslip
Primula 'japonica' Japanese Primrose
Primula 'vialii' Chinese Pagoda primrose
Prunella Self Help
Pyrethrum Painted Daisy
Salvia 'haematodes' Bloodvein Sage
Salvia 'superba' Violet Sage
Saponaria Soapwort
Saxifragia 'arendsii' Mossy Saxifrage
Saxifragia 'paniculata' Encrusted Saxifrage
Saxifragia 'urbium London Pride
Scabiosa Pincushion Flower
Sedum Acre Golden Stonecrop
Sidalcea 'malviflora' Prairie Mallow
Silene 'acaulis' Moss Campion
Sorbaria False Spirea
Stachys Lamb's Ear
Thalictrum 'delavaye' Meadow Rue
Thermopsis 'lupinoides' False Lupin
Thymus Thyme
Tiarella 'cordifolia' Foamflower
Tradescantia 'andersoniana' Spiderwort
Trollius 'cultorum' Globeflower
Tunica 'saxifraga' Tunic Flower
Valeriana 'officianalis' Garden Heliotrope
Veronica Speedwell
Zantedeschia Calla Lily
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JULY
Botanical Name Common Name
Achillea 'millefolium' Yarrow
Achillea 'filipendulina' Fern leaf Yarrow
Achillea 'galaxy' German Yarrow
Achillea 'ptarmica' Double White Yarrow
Achillea 'tomentosa aurea' Woolly Yarrow
Aconitum Monkshood
Alcea Hollyhock
Allium Ornamental Onion
Aurinia 'saxitilia' Gold Dust / Basket of Gold
Amsonia 'tabernaemontana' Texas Blue Star
Anaphalis 'margaritacea Pearly Everlasting
Anthemis Marguerite
Arenaria Sandwort
Armeria 'pseudoarmeria' Large Thrift
Aruncus Goatsbeard
Asclepias Butterfly Weed
Asphodeline King's Spear
Astilbe False Spirea
Astilbe 'arendsii' Garden Astilbe
Astilbe 'chinensis' Chinese Astilbe
Bilamcanda chinensis Blackberry Lily
Campanula 'lactiflora' Milky Bellflower
Campanula 'glomerata' Clustered Bellflower
Campanula 'carpatica' Carpathian Bellflower
Campanula 'persicifolia' Peach-Leaved Bellflower
Campanula 'rotundifolia' Bluebells of Scotland
Centaurea Perennial Cornflower
Chelone  
Chrysogum Golden Star
Chrysanthemum 'superbum' Shasta Daisy
Clematis Clematis
Coreopsis rosea Pink Flowered Coreopsis
Coreopsis verticillata Thread-Leafed Coreopsis
Crocosmia Crocosmia / Montbretia
Delphinium Delphinium
Dianthus deltoides Maiden Pinks
Diascia Twinspur
Dicentra 'Luxuriant' Fern Leaf Bleeding Heart
Dictamnus Gas Plant
Echinacea 'purpurea' Purple Coneflower
Echinops 'ritro' Globe Thistle
Eremurus Foxtail Lily
Erigeron Fleabane
Erinus alpinus Erinus
Erodium Storksbill
Eryngium Sea Holly
Filipendula Meadowsweet
Gaillardia Blanket Flower
Galtonia Summer Hyacinth
Geum 'Mrs. Bradshaw' Avens
Gentiana Gentian
Geranium 'endrussii' Wargrave Cranesbill
Geranium 'himalayensi' Himalayan Cranesbill
Geranium 'Johnson's Blue' Johnson's Blue Cranesbill
Geranium 'oxnianum'  
Geranium 'sanguineum' Bloody Cranesbill
Geranium 'Phaeum' Mourning Widow
Gypsophila Baby's Breath
Helenium Sneezeweed
Helianthemum Rock Rose / Sun Rose
Helianthus Sunflower
Hemerocallis Day Lily
Hesperis Sweet Rocket
Ophiopogon Black Lilyturf
Papaver 'alpinum' Alpine Poppy
Papaver 'atlanticum' Atlas Poppy
Papaver 'nudicaule' Iceland Poppy
Papaver 'orientale' Oriental Poppy
Patrinia Patrinia
Pentstemon 'digitalis' Beard's Tongue
Perovskia Russian Sage
Phlox 'paniculata' Garden Phlox
Potentila Cinquefoil
Polemonium Jacob's Ladder
Physostegia Obedient Plant
Platycodon Balloon Flower
Primula 'florindae' Himalayan Cowslip
Primula 'vialii' Chinese Pagoda Primrose
Pyrethrum Painted Daisy
Rodgersia Rodgersia
Roscoea Roscoea
Rudbeckia Coneflower / Gloriosa Daisy
Salvia 'superba' Perennial Salvia / Sage
Scabiosa Pincushion Flower
Sidalcea Prairie Mallow
Silene Campion
Solidaster Solidaster
Statice Perennial Statice / includes German Statice and Sea Lavender
Stokesia Stoke's Aster
Thalictrum Meadow-rue
Thymus Thyme
Tradescantia Spiderwort
Verbascum Mullein
Veronica Speedwell
Yucca Yucca
Zantedeschia Calla Lily
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AUGUST
Botanical Name Common Name
Aconitum Monkshood
Alcea Hollyhock
Anaphalis Pearly Everlasting
Anemone 'tomentosa' Windflower
Anemone 'hybrida' Japanese Anemone
Anthemis Marguerite
Asclepias Butterfly Weed
Asphodelene King's Spear
Aster 'fall' Michaelmas Daisy
Aster 'novi belgii' New York Aster
Boltonia Boltonia
Calamintha Calaminth
Campanula 'carpatica' Carpathian Bellflower
Campanula 'lactiflora' Milky Bellflower
Campanula 'persicifolia' Peach-leaved Bellflower
Campanula 'rotundifolia' Bluebells of Scotland
Caryopteris Bluebeard
Catananche Cupid's Dart
Centaurea Perennial Cornflower
Centranthus Valerian
Cerastostigma Blue Leadwort
Chelone Turtlehead
Chrysanthemum Chrysanthemum
Chrysopsis Golden Aster
Cimicifuga Bugbane
Clematis Clematis
Colchicum 'autumnale' Autumn Crocus
Coreopsis Tickseed
Crocosmia Crocosmia
Diascia Twin Spur
Dicentra 'luxuriant' Fern Leaf Bleeding Heart
Echinacea Coneflower
Echinops Globe Thistle
Erodium Storksbill
Eryngium Sea Holly
Eupatorium 'purpureum' Joe Pye Weed
Gentiana 'septemfida' Everyman's Gentian
Gentiana 'andrewsii' Bottle Gentian
Geranium 'Johnson's Blue' Cranesbill Johnson's Blue
Geranium 'sanguineum Bloody Cranesbill
Geum 'Mrs. Bradshaw' Avens
Gypsophila paniculata Baby's Breath
Helenium Sneezeweed
Helianthemum Rock Rose, Sun Rose
Heliopsis False Sunflower
Hemerocallis Day Lily
Hibiscus moscheutos 'southern Bell Rose Mallow
Hypericum St. John's Wort
Hysosopus Hyssop
Jasione Shepherd's Bit
Kirengeshoma Yellow Waxbells
Lamium False Salvia
Lathyrus Sweet Pea / Everlasting Pea
Liatris Blazing Star
Lilium 'aurelian' Trumpet Lily
Lilium 'orientale' Oriental Lily
Lilium 'speciosum rubrum' Red Japanese Lily
Linum Flax
Liriope Lily-Turf
Lithodora Lithodora / Lithospernum
Lobelia Lobelia
Lysimachia 'clethroides' Gooseneck Loosestrife
Lysimachia 'punctata' Yellow Loosestrife
Malva 'moschata rosea' Pink Musk Mallow
Monarda Bee Balm / Bergamot
Nepata Catmint
Oenothera Evening Primrose / Sundrops
Onagraceae Gaura
Papaver 'alpinum' Alpine Poppy
Papaver 'nudicaule' Iceland Poppy
Patrinia Patrinia
Penstemon Beard Tongue
Perovskia Russian Sage
Phlox 'maculata' Meadow Phlox
Phlox 'paniculata' Garden Phlox
Physostigia Obedient Plant
Platycodon Balloon Flower
Polygonium Fleece Flower
Potentilla 'nepalensis' Cinquefoil - Miss Willmott
Rodgersia Rodgersia
Roscoea Roscoea
Rudbeckia Coneflower / Gloriosa Daisy
Salvia 'haematodes' Meadow Clary
Salvia 'superba' Perennial Salvia
Scabiosa Pincushion Flower
Sedum 'spectabilis' Autumn Joy
Sidalcea Prairie Mallow
Silene Campion
Solidago Golden Rod
Solidaster Solidaster
Statice Perennial Statice
Stokesia Stoke's Aster
Thalictrum Meadow-Rue
Tradescentia Spiderwort
Tunica Tunic Flower
Verbascum Mullein
Veronica Speedwell
Zantedeschia Calla Lily
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SEPTEMBER
Botanical Name Common Name
Achillea 'millefolium' Yarrow
Aconitum Monkshood
Anemone 'hybrida' Japanese Anemone
Aster 'fall' Michaelmas Daisy
Astilbe 'chinensis' Chinese Astilbe
Astilbe 'taquetti' Fall Astilbe
Boltonia Boltonia
Calamintha Calaminth
Campanula 'carpatica' Carpathian Bellflower
Campanula 'lactifolia' Milky Bellflower
Campanula 'rotundifolia' Bluebells of Scotland
Caryopteris Bluebeard
Centranthus Valerian
Cerastostigma Blue Leadwort
Chelone Turtlehead
Chrysanthemum Chrysanthemum / garden mum
Cimicifuga Bugbane
Clematis Clematis
Coreopsis Tickseed
Crocosmia Crocosmia
Colchicum 'autumnale' Autumn Crocus
Dicentra 'luxuriant' Fern Leaf Bleeding Heart
Echinacea 'purpurea' Purple Coneflower
Echinops Globe Thistle
Erodium Storksbill
Eupatorium 'purpureum' Joe Pye Weed
Filipendula 'purpurea' Meadowsweet
Gaillardia Blanket Flower
Gentian 'septemfida' Everyman's Gentian
Geum 'Mrs. Bradshaw' Avens
Gypsophila 'paniculata' Baby's Breath
Helenium Sneezeweed
Helianthemum Rock Rose / Sun Rose
Heliopsis False Sunflower
Hibiscus moscheutos 'Southern Bell' Rose Mallow
Kirengeshoma 'palmata' Yellow Waxbells
Kniphofia Red Hot Poker
Lamium False Salvia
Lathyres Perennial Sweet Pea
Liatris Blazing Star
Lilium 'orientales' Oriental Lily
Lilium 'speciosum rubrum' Red Japanese Lily
Liriope Lily-turf
Lobelia 'cardinalis' Cardinal Flower
Lysimachia 'clethroides' Gooseneck Loosestrife
Malva 'moschata rosea' Pink Musk Mallow
Matricaria Feverfew
Nepata Catmint
Onagraceae Gaura
Papaver 'nudicaule' Iceland Poppy
Patrinia Patrinia
Penstemon hybrids Beard-Tongue
Perovskia Russian Sage
Phlox 'paniculata' Garden or Summer Phlox
Physostigia Obedient Plant
Platycodon Balloon Flower
Polygonum Fleece Flower
Potentilla 'nepalensis' Cinquefoil / Miss Wilmot
Rudbeckia Coneflower / Gloriosa Daisy
Sedum 'Autumn Joy' Stonecrop
Sedum 'Ruby Glow' Stonecrop
Solidago Golden Rod
Solidaster Solidaster
Stokesia Stoke's Aster
Tricyrtis Toad Lily
Veronica 'Sunny Border Blue' Speedwell
Viola 'tricolor' Johnny-Jump-Up / Hearts Ease
Zantedeschia Calla Lily
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OCTOBER
Botanical Name Common Name
Aster 'fall' Michaelmas Daisy
Boltonia Boltonia
Calamintha Calaminth
Campanula 'carpatica' Carpathian Bellflower
Caryopteris Blue Beard
Ceratostigma Blue Leadwort
Chelone Turtlehead
Chrysanthemum Garden Mum
Cimicifuga 'simplex' Kamchatka Bugbane
Colchicum 'autumnale' Autumn Crocus
Dicentra 'luxuriant' Fern Leaf Bleeding Heart
Echinacea 'purpurea' Purple Coneflower
Echinops Globe Thistle
Eupatorium Joe Pye Weed
Kirengeshoma Yellow Waxbells
Kniphofia Red Hot Poker
Matricaria Feverfew
Papaver 'nudicaule' Iceland Poppy
Penstemon hybrids Beard-Tongue
Platycodon Balloon Flower
Rudbeckia 'hirta' Gloriosa Daisy
Rudbeckia 'fulgida' Goldsturm Coneflower
Rudbeckia 'nitida' Autumn Sun Coneflower
Scabiosa Pincushion Flower
Sedum 'Autumn Joy' Autumn Joy
Sedum 'Ruby Glow' Ruby Glow
Solidago Golden Rod
Solidaster Solidaster
Stokesia Stoke's Aster
Tricyrtis 'hirta' Toad Lily
Viola 'tricolor' Johnny-Jump-Up / Heart's Ease
Zantedeschia Calla Lily
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