Blooming Color By Season by Laura Pottorff, Colorado State University Cooperative Extension commercial greenhouse agent, Adams County

References: Cooperative Extension fact sheets, 7.418, Small Deciduous Trees, and 7.419, Large Deciduous Trees and Best Perennials for the Rocky Mountains and High Plains.

Examples of Perennials and Flowering for Colorado ** The exact bloom date will vary by site (elevation and exposure) and weather conditions

Very short = 1” – 6” Short = 6 – 12” Medium =1’ – 3’ Tall = > 3’ Season Color Size Type of Plant Spring Daffodill and Yellow and Very short Fall planted bulbs (March – narcissus white May) Crocus Lavender and Very short Fall planted bulbs purple Tulips Various Very Short Fall planted bulbs Grape hyacinth Purple Very short Fall planted bulbs Muscari spp. Forsythia Yellow Greater than 6 Flowering Forsythia x ft. intermedia Grow-low sumac Yellow Less than 4 ft. Flowering Shrub Rhus aromatica Pussywillow Gray Greater than Flowering Shrub Salix discolor 6ft Snow Drop White Short Herbaceous Anemone perennial Anemone sylvestris Lungwort, White, Blue, Short Herbaceous Pulmonaria Purple and perennial saccharata. Pink European pasque Red Short Herbaceous , perennial Pulsatilla vulgaris Moss phlox, Pink Very short Herbaceous Phlox subulata perennial Comb speedwell, Blue and Very short Herbaceous Veronica Purple perennial pectinata Wild sweet- Blue and Short Herbaceous William, Purple perennial Phlox divaricata ssp. laphamii Nannyberry White Less than 4 ft. Flowering Shrub viburnum, Viburnum lentago Flowering quince, Red 4- 6 ft. Flowering Shrub Chaenomeles speciosa Threeleaf sumac, Yellow 4 – 6 ft Flowering shrub Rhus trilobata Golden Currant Yellow 4 – 6 ft Flowering shrub Ribes aureum Serviceberry White > 6 ft Flowering shrub Amelanchier spp. Nanking cherry Pink – White > 6ft Flowering Shrub Prunus tomentosa Double flowering Pink > 6ft Flowering shrub plum Prunus triloba Sweet woodruff White Very short Herbaceous Gallium odoratum perennial Evergreen White Very Short Herbaceous Candytuft, perennial Iberis sempervirens Columbine, White, Pink Medium Herbaceous Aquilegia spp. perennial Jupiter’s beard, White, Red Medium Herbaceous ruber perennial Bleeding heart, White, Pink Medium Herbaceous Dicentra perennial spectabilis Iris Various Medium Herbaceous perennial Marshall Yellow Very Short Herbaceous Chamomile, perennial Anthemis marschalliana Yellow ice plant, Yellow Very Short Herbaceous Delosperma perennial nubigenium Dwarf bird’s foot Yellow Very short Herbaceous trefoil, perennial Lotus corniculatus ‘Dwarf’ Dwarf basket of Yellow Short - Herbaceous gold, Aurinai Medium perennial saxitalis ‘Compacta’ Sun Rose, Yellow, Pink Short Herbaceous Helianthemum perennial spp. Yellow archangel, Yellow, Pink Short Herbaceous Lamium perennial galeobdolon Lupine, Red, Pink Medium Herbaceous Lupinus spp. perennial Pine Red Medium Herbaceous penstemon, perennial Penstemon pinnifolius Sea thrift, Pink Very Short Herbaceous Armeria maritima perennial Cheddar pink, Pink Very short Herbaceous Dianthus ‘tiny perennial rubies’ Bloody cranesbill, Pink Medium Herbaceous Geranium perennial saquineum Columbine Pink Medium Herbaceous meadow rue, perennial Thalictrum aquilegiifollium Gas plant, Pink Tall Herbaceous Dictamnus albus perennial Bugleweed, Blue and Very Short Herbaceous Ajuga pyrimidalis Purple perennial Turkish veronica, Blue and Very Short Herbaceous Veronica Purple perennial liwanensis Speedwell, Blue and Short Herbaceous Veronica Purple perennial penduncularis Siberian bugloss, Blue and Medium Herbaceous Brunnera Purple perennial macrophylla Mountain bluet. Blue and Medium Herbaceous Centaurea Purple perennial montana Solitary clematis Blue and Medium Herbaceous Clematis Purple perennial intergrifolia Wild and Blue and Medium Herbaceous Perennial flax. Purple perennial Linum spp. Jacob’s Ladder, Blue and Medium Herbaceous Polemonium Purple perennial caeruleum Meadow Clary Blue and Medium Herbaceous Salvia pratensis Purple perennial Blue false indigo, Blue and Tall Herbaceous Baptisia australis Purple perennial Honey suckle, White Less than 4 ft Flowering Shrub Lonicera Cranberry Pink Less than 4 ft. Flowering Shrub Cotoneaster, Contoneaster apiculatus Nannyberry White Less than 4 ft. Flowering Shrub viburnum, Viburnum lentago Black White 4 – 6 ft. Flowering Shrub chokecherry ‘Isanti’ dogwood, White 4 – 6 ft Flowering Shrub Cornus sericea Mock orange, White 4 – 6 ft Flowering Shrub Phiadelphus coronarius Cistena plum Pink 4 – 6 ft Flowering shrub Prunus x cistena Dwarf flowering White - Pink 4 – 6 ft. Flowering shrub almond, Prunus glandulosa Golden Currant Yellow 4 – 6 ft Flowering shrub Ribes aureum Vanhoutte spirea White 4 – 6 ft Flowering Shrub Spirea vanhouttei Lilac, Lavendar – 4 – 6 ft Flowering Shrub Syringa spp. blue Weigela, Pink 4 – 6 ft Flowering Shrub Weiglea florida Siberian peashrub, Yellow > 6ft Flowering shrub Caragana arboescens Redtwig White > 6ft Flowering Shrub dogwood, Corunus sericea Beautybush, Pink > 6ft Flowering shrub Kolwitzia amabilis Ninebark, White >6 ft Flowering Shrub Physocarpus opulifolius Common White > 6ft Flowering shrub chokecherry Prunus virginiana Snowball White > 6ft Flowering Shrub viburnum, Viburnum opulus ‘Roseum’ Summer Sweet woodruff White Very short Herbaceous (June – July) Gallium odoratum perennial Evergreen White Very Short Herbaceous Candytuft, perennial Iberis sempervirens Black mondograss White Very short Herbaceous Ophiopgon perennial planiscapus Stonecrop White Very short Herbaceous Sedum nevii perennial Snow Drop White Short Herbaceous Anemone perennial Anemone sylvestris Carpathian White, blue Short Herbaceous harebell and purple perennial Campanula carpatica Snow in Summer White Short Herbaceous Cerastium perennial tomentosum Cottage pink White Short Herbaceous Dianthus perennial plumarious Small flowered White and Short Herbaceous alumroot pink perennial Heuchera micrantha Mexican evening White and Short Herbaceous primrose pink perennial Oenothera speciosa Knotweed White and Short Herbaceous Polygonum affine pink perennial Two row sedum, White, pink Short Herbaceous Sedum spurium and red perennial Sneezewort White Medium Herbaceous Achillea ptarmica perennial Columbine, White, pink, Medium Herbaceous Aquilegia spp. blue, purple, perennial yellow Jupiter’s Beard White and Medium - tall Herbaceous Centranthus ruber Red perennial Busch clematis White, blue, Medium Herbaceous Clematis recta purple perennial Bleeding heart White and Medium Herbaceous Dicentra Pink perennial spectabilis Coneflower White and Medium Herbaceous Echinacea purple perennial purpurea Meadowsweet White Medium Herbaceous Filipendula perennial vulgaris Shasta daisy White Medium Herbaceous Leucanthemum x perennial superbum Kansas gayfeather White Medium Herbaceous Liatris perennial pychnostachya Lily Various Medium Herbaceous Lilium spp. perennial Garden peony White and Medium – tall Herbaceous Paeonia spp. pink perennial Oriental poppy White and Medium – tall Herbaceous Papaver orientale orange perennial Beard-tongue White, red, Medium Herbaceous Penstemon spp. pink, blue and perennial purple Spike speedwell White, pink, Medium Herbaceous Veronica spicata blue and perennial purple Adam’s Needle White Medium – tall Herbaceous Yucca fliamentosa perennial Soapweed White Medium Herbaceous Yucca glauca perennial Whirling White Tall Herbaceous perennial Gaura lindheimeri Giant daisy White Tall Herbaceous Leucanthemella perennial serotina Garden phlox White, pink Tall Herbaceous Phlox paniculata perennial Culver’s Root White Tall Herbaceous Veronicastrum perennial virginicum Marshall Yellow and Very short Herbaceous chamomile orange perennial Anthemis marschalliana Yellow ice plant Yellow Very Short Herbaceous Delosperma perennial nubigenum Dwarf bird’s foot Yellow and Very Short Herbaceous trefoil orange perennial Lotus corniculatus Lychnis Yellow and Very Short Herbaceous Lycnhis organge perennial Moneywort Yellow and Very short Herbaceous Lysimachia orange perennial nummularia Lady’s mantle Yellow and Short – Herbaceous Alchemilla mollis orange Medium perennial Dwarf basket of Yellow and Short – Herbaceous gold orange Medium perennial Aurinia saxatilis Blanket flower Yellow, Short – Herbaceous Gaillardia x orange and red Medium – tall perennial grandiflora Sun rose Yellow, Short Herbaceous Helianthemum orange, and perennial pink Ozark sundrops Yellow and Short Herbaceous Oenothera orange perennial macrocarpa Aizoon stonecrop Yellow and Short Herbaceous Sedum aizoon orange perennial Kamschatka Yellow and Short Herbaceous stonecrop orange perennial Sedum kamtshcaticum Yarrow Yellow, Medium – Herbaceous Achillae spp. orange, pink Tall perennial and red Sunset hyssop Yellow Medium - Tall Herbaceous Agastache orange, and perennial rupestris pink Threadleaf Yellow and Medium tall Herbaceous coreopsis orange perennial Coreopsis verticillata Geum Yellow and Medium Herbaceous Geum chiloense orange perennial Day lily Yellow and Medium – tall Herbaceous Hemerocallis orange perennial Creeping St. Yellow and Medium Herbaceous Johnswort orange perennial Hypericum calycinum Red-hot poker Yellow and Medium – tall Herbaceous Kniphofia uvaria orange perennial Pineleaf Yellow and Medium Herbaceous penstemon red perennial Penstemon pinifolius Sulphur Yellow Medium Herbaceous cinquefoil perennial Potentilla recta Orange Yellow Medium Herbaceous coneflower perennial Rudbeckia ‘Goldstrum’ Lavendar cotton Yellow and Medium Herbaceous Santolina orange perennial chamaecyparissus European Yellow and Medium Herbaceous goldenrod orange perennial Solidago virgaurea Globeflower Yellow and Medium Herbaceous Trollius x orange perennial cultorum Hollyhock Orange, pink Tall Herbaceous Alcea rugosa perennial Globe centaurea Yellow and Medium Herbaceous Centaurea orange perennial macrocephala False sunflower Yellow and Tall Herbaceous Heliopsis orange perennial helianthoides Hairy golden aster Yellow and Tall Herbaceous Heterotheca orange perennial villosa Large flowered Yellow and Tall Herbaceous evening primrose orange perennial Oenothera glazioviana Sticky Jerusalem Yellow and Tall Herbaceous sage orange perennial Phlomis russeliana Coral bells Red Very short Herbaceous Heuchera perennial sanguinea Knautia Red and Medium Herbaceous Knautia purple perennial Macedonia Cardinal flower Red Medium Herbaceous Lobelia cardinalis perennial Maltese cross Red Medium Herbaceous Lychnis perennial chalcedonica Beebalm Red Medium Herbaceous Monarda didyma perennial Sea thrift Pink Very Short Herbaceous Armeria maritime perennial Cheddar pink Pink Very short Herbaceous Dianthus perennial gratianopolitanus Prairie smoke Pink Very short Herbaceous Geum triflorum perennial Spotted dead Pink Very Short Herbaceous nettle perennial Lamium maculatum ‘Pink Pewter’ Strawberry wood Pink Very Short Herbaceous sorrel perennial Oxalis crassipes ‘Rosea’ Moss Phlox Pink, blue and Very Short Herbaceous Phlox subulata purple perennial Hens and Chicks Pink Very Short Herbaceous Sempervivum spp perennial Purple poppy Pink Short Herbaceous mallow Perennial Callirhoe involucrata Clove pink Pink Short and Herbaceous Dianthus medium perennial caryophyllus Garden pink Pink Short Herbaceous Dianthus perennial nardiformis Cranesbill Pink Short Herbaceous Geranium x perennial oxonianum Bigroot geranium Pink, blue and Short Herbaceous Geranium purple perennial macrorhizum Lungwort Pink Short Herbaceous Pulmonaria perennial saccharata Lamb’s ears Pink Short and Herbaceous Stachys byzantina medium perennial Bear’s breeches Pink Medium Herbaceous Acanthus perennial balancius Knapweed Pink Medium Herbaceous Centaurea perennial dealbata ‘Rosea’ Sweet William Pink Medium Herbaceous Diantus barbatus perennial Bloody cranesbill Pink Medium Herbaceous Geranium perennial saguineum Tree Mallow Pink Medium Herbaceous Lavatera perennial thuringiaca Hollyhock Pink Medium – Herbaceous mallow Tall perennial alcea Obedient plant Pink Medium Herbaceous Physotegia perennial virginiana Pincushion flower Pink, Blue and Medium Herbaceous Scabiosa purple perennial columaria Columbine Pink Medium Herbaceous meadow rue perennial Thalictrum aquilegiifolium Virginia Pink Medium Herbaceous spidewort perennial Tradescantia virginiana Giant Pink Tall Herbaceous hummingbird perennial mint Agastache barberi Gas plant Pink Tall Herbaceous Ditamnus albus perennial Joe-pye weed Pink Tall Herbaceous Eupatorium perennial maculatum Perennial baby’s Pink Tall Herbaceous breath perennial Gypsophila paniculata Fairies’ thimbles Blue and Very Short Herbaceous Campanula Purple perennial cochlearifolia Creeping thyme Blue and Very Short Herbaceous Thymus serpyllum purple perennial Speedwell Blue and Very Short - Herbaceous Veronica purple Short perennial Spp. Scotch bluebell Blue and Short Herbaceous Campanua purple perennial rotundifolia Crested gentian Blue and Short Herbaceous Genitana purple perennial septemfida Siberian statice Blue and Short Herbaceous Limonium purple perennial gmelinii Large selfheal Blue and Short Herbaceous Prunella purple perennial grandiflora European pasque Blue and Short Herbaceous flower purple perennial Pulsatilla vulgaris Meadow clary Blue and Short - Herbaceous Salvia pratensis purple Medium perennial Germander Blue and Short Herbaceous Teucrium spp purple perennial Siberian Bugloss Blue and Medium Herbaceous Brunnera purple perennial macrophylla Bellfower Blue and Medium Herbaceous Camanula sp. purple perennial Mountain bluet Blue and Medium Herbaceous Centaurea purple perennial montana Solitary clematis Blue and Medium Herbaceous Clematis purple perennial intergrifolia Broad petaled Blue and Medium Herbaceous geranium purple perennial Geranium platypetalum Tartarian statice Blue and Medium Herbaceous Goniolimon purple perennial tatricum Iris Blue and Medium Herbaceous Iris spp. purple perennial Lavendar Blue and Medium Herbaceous Lavendula purple perennial angustifolia Blazing star Blue and Medium Herbaceous Liatris spicata purple perennial Sea lavender Blue and Medium Herbaceous Limonium purple perennial latifolium Perennial flax Blue and Medium Herbaceous Linum perenne purple perennial Wild lupine Blue and Medium Herbaceous Lupinus perennis purple perennial Catmint Blue and Medium - Tall Herbaceous Nepeta x faassenii purple perennial Balloon flower Blue and Medium Herbaceous Platycodon purple perennial grandiflorus Jacob’s ladder Blue and Medium Herbaceous Polemonium purple perennial caruleum Perennial sage Blue and Medium Herbaceous Salvia x sylvestris purple perennial Ohio spderwort Blue and Medium Herbaceous Tricytris hirta purple perennial Blue false indigo Blue and Tall Herbaceous Baptisia autralis purple perennial Globe thistle Blue and Tall Herbaceous Echinops ritro purple perennial

Siberian iris Blue and Tall Herbaceous Iris sibirica purple perennial Russian sage Blue and Tall Herbaceous Perovskia purple perennial atriplicifolia Blue mist spirea Blue < 4 ft Flowering shrub Caryopteris spp. Hydrangea White < 4ft Flowering shrub ‘Annabelle’ Hydrangea arborecens ‘Lodense’ Privet Yellow < 4ft Flowering Shrub ligustrum vulare Potentilla Yellow < 4 ft Flowering Shrub (shrubby cinquefoil) Potentilla fruticosa

‘Anthony Pink < 4ft Flowering shrub Waterer’ Spirea Spirea x bumalda ‘Little Princess’ Pink < 4ft Flowering Shrub Spirea Spirea japonica bush Pink – 4 – 6 ft Flowering shrub Buddleia davidii Lavendar Golden vicary White 4 – 6 ft Flowering shrub privet Ligustrum x vicaryi Snowberry Pink 4 – 6 ft Flowering Shrub Symphoricarpos albus Smoketree White – pink > 6 ft Flowering shrub Continus coggygria Rose of Sharon Varies > 6 ft Flowering shrub Hibiscus syriacus PeeGee hydrangea White > 6ft Flowering shrub Hydrangea paniculata ‘Grandiflora’ Beautybush Pink > 6ft Flowering shrub Kolwitzia amablis Cheyenne privet White > 6ft Flowering shrub Ligustrum vulagar ‘Cheyenne’ Golden elder White > 6 ft Flowering shrub Sambucus cnadensis ‘Aurea’ Ash leaf spirea White > 6 ft Flowering Shrub Sorbaria sorbifolia Fall (August Creeping baby’s White Very short Herbaceous – October) breath perennial Gypsolphila repens Snowdrop White Short Herbaceous anemone perennial Anemone sylvestris Aster White Short Herbaceous Aster spp. perennial Carpathian White Short Herbaceous harebell perennial Campanula carpatica Small flowered White Short Herbaceous alumroot perennial Heuchera micrantha Compact Mexican White and Short Herbaceous evening primrose pink perennial Oenothera speciosa ‘Siskiyou’ Knotweed White and Short Herbaceous Polygonum affine pink perennial Sneezewort White Medium Herbaceous Achillea ptarmica perennial New York Aster White Medium Herbaceous Aster novi-belgii perennial Pearly everlasting White Medium Herbaceous Anaphalis perennial margaritacea Boltonia White Medium - Tall Herbaceous Boltonia asteroids perennial ‘snowbank’ Jupiter’s beard White, red, Medium - tall Herbaceous Centranthus pink perennial rubber Busch clematis White Medium Herbaceous Clematis recta perennial Coneflower White and Medium Herbaceous Echinacea pink perennial purpruea ‘White Swan’ Hosta White, Medium Herbaceous Hosta perennial tsushimensis Shasta daisy White Medium - Tall Herbaceous Leucanthemum perennial Kansa Gayfeather White Medium Herbaceous Liatris perennial pychnostachya Beard tongue White, pink, Medium Herbaceous Penstemon spp. Red, blue and perennial purple Hairy toad lily White Medium Herbaceous Tricyrtis hirta perennial Spike speedwell White, pink Medium Herbaceous Veronica spicata blue and perennial purple Whirling White Tall Herbaceous butterflies perennial Gaura lindheimeri Giant daisy White Tall Herbaceous Leucanthemella perennial Serotina Garden Phlox White, pink, Tall Herbaceous Phlox paniculata blue and perennial purple Culver’s root White Tall Herbaceous Veronicastrum perennial virginicum Lychnis Yellow or Very Short Herbaceous Lychnis orange perennial Moneywort Yellow Very short Herbaceous Lysimachia perennial nummularia Blanket flower Yellow, red Very short – Herbaceous Gaillardia x and orange Tall perennial grandiflora Sun Rose Yellow Short Herbaceous Helianthemum perennial Ozark sundrops Yellow Short Herbaceous Oenothera macrocarpa Fernleaf yarrow Yellow Medium - tall Herbaceous Achillea perennial filipendulina Yarrow Yellow, pink, Medium Herbaceous Achilliea spp. perennial Sunset hyssop Yellow or Medium Herbaceous Agastache orange perennial rupestris Threadleaf Yellow and Medium - tall Herbaceous coreopsis orange perennial Coreopsis verticillata Geum Yellow and Medium Herbaceous Geum chiloense orange perennial Day lily Yellow and Medium Herbaceous Hemerochallis orange perennial spp. Creeping St. Yellow and Medium Herbaceous John’s wort orange perennial Hypericum calycinum Pineleaf Yellow, red Medium Herbaceous penstemon perennial Penstemon pinifolius Sulphur Yellow Medium Herbaceous cinquefoil perennial Potentilla recta Orange Yellow Medium Herbaceous coneflower perennial Rudbeckia fulgida sullvantii ‘Goldstrum’ European Yellow and Medium Herbaceous Goldenrod orange perennial Solidago virguarea Hollyhock Yellow, Tall Herbaceous Alcea rugosa orange, pink perennial False sunflower Yellow and Tall Herbaceous Heliopsis orange perennial helianthoides Hairy golden aster Yellow and Tall Herbaceous Heterotheca orange perennial villosa Large flowered Yellow and Tall Herbaceous evening primrose orange perennial Oenothera glazioviana Coral bells Red and pink Short Herbaceous Heuchera perennial sanquinea New York Aster Red and pink Medium Herbaceous Aster novi-belgii perennial Knautia Red and Medium Herbaceous Knautia purple perennial Macedonia Cardinal flower Red Medium Herbaceous Lobelia cardinalis perennial Maltese cross Red Medium Herbaceous Lycnis perennial chalcedonica Beebalm Red Medium Herbaceous Monarda didyma perennial Sea thrift Pink Very Short Herbaceous Armeria maritime perennial Spotted deadnettle Pink Very short Herbaceous Lamium perennial maculatum Strawberry Pink Very short Herbaceous woodsorrel perennial Oxalis crassipes Purple poppy Pink Short Herbaceous mallow perennial Callirhoe involucrate Garden pink Pink Short Herbaceous Dianthus perennial nardiformis Cranesbill Pink Short Herbaceous Geranium x perennial oxonianum Two row sedum Pink Short Herbaceous Sedum spurium perennial Lamb’s ears Pink Short – Herbaceous Stachys byzantina medium perennial Germander Pink, blue and Short Herbaceous Teucrium spp. purple perennial Veronica Pink, Blue and Short – Tall Herbaceous Veronica spp. purple perennial Bear’s Breeches Pink Medium Herbaceous Acanthus perennial balcanicus Knapweed Pink Medium Herbaceous Centaurea perennial dealbata ‘Rosea’ Coreopsis Pink, yellow Medium Herbaceous Coreopsis spp. perennial Sweet William Pink Medium Herbaceous Dianthus perennial barbatus Showy stonecrop Pink Medium Herbaceous Hylotelephinum perennial spectabile ‘Autumn Glory’ Live forever Pink Medium Herbaceous Hylotelephinum perennial telephinum Hollyhock Pink Medium - tall Herbaceous mallow perennial Malva alcea Obedient plant Pink Medium Herbaceous Physotegia perennial virginia Pincushion flower Pink Medium Herbaceous Scabiosa perennial columbaria Virginia Pink Medium Herbaceous spiderwort perennial Tradescantia virginiana Hummingbird Pink Tall Herbaceous mint perennial Agastache barberi Japanese anemone Pink Tall Herbaceous Anemone perennial hupehensis Grapeleaf Pink Tall Herbaceous anemone perennial Anemone tomentosa Fireweed Pink Tall Herbaceous Epilobium perennial augustifolium Joe-pye weed Pink Tall Herbaceous Eupatorium perennial maculatum Perennial baby’s Pink Tall Herbaceous breath perennial Gypsophila paniculata Wild beebalm Pink Tall Herbaceous Monarda fistulosa perennial Prairie mallow Pink Tall Herbaceous Sidlacea spp perennial Bugleweed Blue and Very short Herbaceous Ajuga spp purple perennial Fairies’ thimbles Blue and Very short Herbaceous Campanula purple perennial cochlearifolia Creeping thyme Blue and Very short Herbaceous Thymus serpyllum purple perennial Carpathian Blue and Short Herbaceous harebell purple perennial Campanula carpatica Scotch bluebell Blue and Short Herbaceous Campanula purple perennial rotundifolia Crested gentian Blue and Short Herbaceous Geranium purple perennial septemfida Bigroot geranium Blue and Short Herbaceous Geranium purple perennial himalayense Hosta Blue and Short Herbaceous Hosta sieboldii purple perennial Siberian statice Blue and Short Herbaceous Limonium purple perennial gmelinii Large selfheal Blue and Short Herbaceous Prunella purple perennial grandiflora Meadow clary Blue and Short - Herbaceous Salvia pratensis purple medium perennial Mountain bluet Blue and Medium Herbaceous Centaurea purple perennial montana Plumbago Blue and Medium Herbaceous Cerastostigma purple perennial plumbaginoides Tube clematis Blue and Medium Herbaceous Clematis purple perennial heracleifolia Solitary clematis Blue and Medium Herbaceous Clematis purple perennial integrifolia Tatarian statice Blue and Medium Herbaceous Goniolimon purple perennial tataricum Lavendar Blue and Medium Herbaceous Lavendula purple perennial angustifolia Blazing star Blue and Medium Herbaceous Liatris spicata purple perennial Sea lavender Blue and Medium Herbaceous Limonium purple perennial latifolium Perennial flax Blue and Medium Herbaceous Linum pernne purple perennial Wild lupine Blue and Medium Herbaceous Lupinus perennis purple perennial Catmint Blue and Medium - tall Herbaceous Nepeta x faassenii purple perennial Balloon flower Blue and Medium Herbaceous Playtcodon purple perennial grandiflorus Perennial sage Blue and Medium Herbaceous Salvia x sylvestris purple perennial ‘May night’ Ohio spiderwort Blue and Medium Herbaceous Tradescantia purple perennial ohioensis Hairy toad lily Blue and Medium Herbaceous Tricyrtis hirta purple perennial Globe thistle Blue and Tall Herbaceous Echinops ritro purple perennial Russian sage Blue and Tall Herbaceous Perovskia purple perennial/flowering atriplicifolia shrub Blue mist spirea Blue < 4 ft Flowering shrub Caryopteris pp. Hyrdangea White < 4 ft Flowering shrub ‘Annabelle’ Hydrangea arborescens Potentilla Yellow < 4 ft Flowering shrub Potentilla fruticosa Rose of Sharon Varies > 6 ft Flowering shrub Hibiscus syriacus PeeGee White > 6 ft Flowering shrub Hydrangea Hydrangea paniculata ‘Grandiflora’