| Scientific Name |
Common Name |
Growth Habit |
| Abelia x grandiflora | Glossy Abelia | Shrubs |
| Abies | Fir | Trees |
| Abies balsamea | Dwarf Balsam Fir | Shrubs |
| Acer griseurn | Paperbark Maple | Trees |
| Acer palmatum | Japanese Maple | Trees |
| Acer pensylvanicum | Striped Maple | Trees |
| Acer platanoides | Norway Maple | Trees |
| Acer rubrum | Red Maple | Trees |
| Acer saccharinum | Silver Maple | Trees |
| Acer saccharum | Sugar Maple | Trees |
| Achillea | Yarrow | Perennials |
| Achillea filipendulina | Fernleaf Yarrow | Perennials |
| Achillea millefolium | Common Yarrow | Perennials |
| Aconitum | Monkshood | Perennials |
| Acorus gramineus | Japanese Sweet Flag | Ornamental Grasses |
| Acsculus arguta | Texas Buckeye | Shrubs |
| Acuba japonica | Acuba | Shrubs |
| Aegopodium podagaria | Bishop's Weed | Ground Covers |
| Aesculus parviflora | Bottlebrush Buckeye | Shrubs |
| Aesculus x carnea | Ruby Horsechestnut | Trees |
| Agapanthus | African Lily | Perennials |
| Agapanthus africanus | Lily of the Nile | Perennials |
| Agastache foeniculum | Anise Hyssop | Perennials |
| Agave americana | Century Plant | Perennials |
| Ageratum | Ageratum | Annuals |
| Ageratum houstonianum | Bluemink | Annuals |
| Ajuga reptans | Bugleweed | Ground Covers |
| Albizia julibrissin | Mimosa | Trees |
| Alchemilla | Ladys' Mantle | Perennials |
| Allium | Ornamental Chives | Bulbs |
| Allium christophii | Star of Persia | Bulbs |
| Allium neapolitanum | Daffodil Garlic | Bulbs |
| Allium ostrowskianum | Lily Leek | Bulbs |
| Aloe | Aloe | Perennials |
| Alyssum | Alyssum | Annuals |
| Amaryllis | Amaryllis | Bulbs |
| Amelanchier arborea | Downy Serviceberry | Trees |
| Amelanchier canadensis | Shadbush | Trees |
| Amelanchier laevis | Allegheny Serviceberry | Trees |
| Amorpha canescens | Lead Plant | Shrubs |
| Anchusa | Bugloss | Perennials |
| Andromeda polifolia | Bog Rosemary | Shrubs |
| Andropogon gerardii | Big Bluestem | Ornamental Grasses |
| Anemone x hybrida | Japanese Anemone | Perennials |
| Anemonella thalictroides | Rue Anemone | Perennials |
| Anethum graveolens | Dill | Annuals |
| Anisacanthus wrightii | Flame Acanthus | Perennials |
| Antirrhinum majus | Snapdragon | Annuals |
| Aquilegia | Columbine | Perennials |
| Arabis | Rock Cress | Perennials |
| Arabis caucasica | Gray Rock Cress | Perennials |
| Aralia spinosa | Devil's Walking Stick | Shrubs |
| Arctostaphylos uva-ursi | Bearberry | Ground Covers |
| Arelia sieboldii | Japanese arealia | Shrubs |
| Arisaema triphylum | Jack-in-the-pulpit | Perennials |
| Armeria maritima | Sea Thrift | Perennials |
| Armoracia rusticana | Horseradish | Perennials |
| Aronia arbutifolia | Red Chokeberry | Shrubs |
| Arrhenatherum elatius | Variegated Oat Grass | Ornamental Grasses |
| Artemisia | Wormwood | Herbaceous Perennials |
| Artemisia dracunculus | Tarragon | Perennials |
| Artemisia schmidtiana | Silver Mound | Perennials |
| Artemisia tridentata | Big Sagebrush | Perennials |
| Arundo donax | Giant Reed | Ornamental Grasses |
| Asarum canadense | Wild Ginger | Perennials |
| Asarum europaeum | European Ginger | Perennials |
| Asclepias incarnata | Swamp Milkweed | Perennials |
| Asclepias tuberosa | Butterfly Weed | Perennials |
| Asimina triloba | Pawpaw | Trees |
| Asparagus officinalis | Asparagus | Perennials |
| Aspidistra lurida | Cast-Iron Plant | Perennials |
| Aster | Aster | Perennials |
| Astilbe | Astilbe | Perennials |
| Athyrium filix-femina | Lady Fern | Ferns |
| Aubrieta deltoidea | Purple Rock Cress | Perennials |
| Aucuba japonica | Goldust Plant | Shrubs |
| Aurinia saxatilis | Basket of Gold | Perennials |
| Bambusa | Bamboo | Ornamental Grasses |
| Baptisia australis | False Indigo | Perennials |
| Baptisia tinctoria | Wild Indigo | Herbaceous Perennials |
| Beaucarnea recurvata | Ponytail Palm | Trees |
| Begonia | Begonia | Annuals |
| Begonia semperflorens | Wax Begonia | Annuals |
| Berberis | Barberry | Shrubs |
| Berberis koreana | Korean Barberry | Shrubs |
| Berberis thunbergii | Japanese Barberry | Shrubs |
| Berberis trifoliolata | Agarita | Shrubs |
| Bergenia | Bergenia | Annuals |
| Bergenia cordifolia | Heartleaf Bergenia | Perennials |
| Betula albo-sinensis | Chinese Paper Birch | Trees |
| Betula jacquemontii | Himalayan Birch | Trees |
| Betula lutea | Yellow Birch | Trees |
| Betula nigra | River Birch | Trees |
| Betula nigra 'Heritage' | Heritage Birch | Trees |
| Betula papyrifera | Paper Birch | Trees |
| Betula pendula | European White Birch | Trees |
| Bignonia capreolata | Trumpetvine | Vines |
| Boltonia asteroides | White Boltonia | Perennials |
| Borage officinalis | Borage | Annuals |
| Brugmansia | Angel's Trumpet | Annuals |
| Brunnera macrophylla | Siberian Bugloss | Perennials |
| Buddleia davidii | Butterfly Bush | Shrubs |
| Buxus | Boxwood | Shrubs |
| Buxus microphylla | Littleleaf Boxwood | Shrubs |
| Buxus sempervirens | Common Boxwood | Shrubs |
| Cactaceae | Cactus | Perennials |
| Calamagrostis acutiflora | Feather Reed Grass | Ornamental Grasses |
| Calamintha | Calamint | Perennials |
| Calendula officinalis | Pot Marigold | Annuals |
| Callicarpa americana | Beautyberry | Shrubs |
| Calluna vulgaris | Heather | Shrubs |
| Calycanthus floridus | Common Sweetshrub | Shrubs |
| Calycanthus occidentalis | California Sweetshrub | Shrubs |
| Camassia leichtlini | Camassia | Bulbs |
| Canna x generalis | Canna Lily | Bulbs |
| Caragana arborescens | Siberian Peashrub | Shrubs |
| Caragana aurantiaca | Pygmy Caragana | Shrubs |
| Caragana frutex | Russian Caragana | Shrubs |
| Caragana maximowicziana | Caragana Maximowicz | Shrubs |
| Caragana pekinensis | Pekinese Caragana | Shrubs |
| Carex | Japanese Sedge | Ornamental Grasses |
| Carex pendula | Drooping Sedge | Ornamental Grasses |
| Caryopteris clandonensis | Blue Mist Shrub | Shrubs |
| Catharanthus alba rosea | Annual Periwinkle | Annuals |
| Catharanthus rosea | Annual Vinca | Annuals |
| Ceanothus velutinus | Snowbush Ceanothus | Shrubs |
| Cedrus deodara | Deodar Cedar | Trees |
| Celastrus | Bittersweet | Vines |
| Celastrus scandens | American Bittersweet | Vines |
| Celosia | Cock's Comb | Annuals |
| Centaurea cineraria | Dusty Miller | Annuals |
| Centaurea cyanus | Cornflower | Annuals |
| Cephalotaxus | Plum Yew | Shrubs |
| Cephalotaxus harringtonia | Japanese Plum Yew | Shrubs |
| Cerastium | Snow-in-Summer | Perennials |
| Ceratostigma plumbaginoides | Plumbago | Ground Covers |
| Cercidiphyllum japonicum | Katsura Tree | Trees |
| Chaenomeles japonica | Japanese Flowering Quince | Shrubs |
| Chaenomeles speciosa | Common Flowering Quince | Trees |
| Chamaecyparis obtusa | False Cypress | Trees |
| Chamaecyparis pisifera | Japanese Falsecypress | Trees |
| Chamaerops humilis | European Fan Palm | Shrubs |
| Chasmanthium latifolium | Northern Sea Oats | Ornamental Grasses |
| Cheiranthus | Wallflower | Annuals |
| Chilopsis linearis | Desert Willow | Shrubs |
| Chionanthus retusus | Chinese Fringe Tree | Trees |
| Choisya ternata | Mexican Orange | Shrubs |
| Chrysanthemum maximum | Shasta Daisy | Herbaceous Perennials |
| Chrysanthemum parthenium | Feverfew | Perennials |
| Cimicifuga racemosa | Black Bugbane | Perennials |
| Clematis | Clematis | Vines |
| Cleome hasslerana | Spider Flower | Annuals |
| Clerodendrum fargesii | Harlequin Glorybower | Shrubs |
| Clethra alnifolia | Sweet Pepperbush | Shrubs |
| Colchicum autumnale | Autumn Crocus | Bulbs |
| Colchicum speciosum | Colchicum | Bulbs |
| Colocasia esculenta | Elephant Ear | Bulbs |
| Consolida ambigua | Larkspur | Annuals |
| Convallaria majalis | Lily of the Valley | Ground Covers |
| Coprosma repens | Mirror Shrub | Shrubs |
| Cordyline australis | Dracaena Palm | Trees |
| Coreopsis | Tickseed | Perennials |
| Coreopsis lanceolata | Lanceleaf Coreopsis | Perennials |
| Coreopsis verticillata | Threadleaf Coreopsis | Perennials |
| Cornus alba | Red Twigged Dogwood | Shrubs |
| Cornus capitata | Himalayan Dogwood | Trees |
| Cornus drummondii | Roughleaf Dogwood | Small Trees |
| Cornus florida | Flowering Dogwood | Trees |
| Cornus kousa | Kousa Dogwood | Trees |
| Cornus sericea | Red Osier Dogwood | Shrubs |
| Cornus stolonifera | Osier Dogwood | Shrubs |
| Correa pulchella | Australian Fuchsia | Shrubs |
| Cortaderia selloana | Pampas Grass | Ornamental Grasses |
| Corydalis | Corydalis | Perennials |
| Corylus | Hazelnut | Shrubs |
| Cosmos bipinnatus | Cosmos | Annuals |
| Cotinus coggygria | Smokebush | Shrubs |
| Cotoneaster | Cotoneaster | Shrubs |
| Cotoneaster apiculatus | Cranberry Cotoneaster | Shrubs |
| Cotoneaster congestus | Pyrenees Cotoneaster | Shrubs |
| Cotoneaster dammeri | Bearberry Cotoneaster | Shrubs |
| Cotoneaster horizontalis | Rockspray Cotoneaster | Shrubs |
| Cotoneaster salicifolius | Willowleaf Cotoneaster | Shrubs |
| Crataegus | Hawthorn | Trees |
| Crataegus laevigata | English Hawthorn | Trees |
| Crocus | Crocus | Bulbs |
| Croscosmia | Crocosmia | Perennials |
| Cryptomeria japonica | Japanese Cedar | Trees |
| Cupressocyparis x leylandii | Leyland Cypress | Trees |
| Cyclamen | Cyclamen | Perennials |
| Cyclamen hederifolium | Neopolitan Cyclamen | Bulbs |
| Cyrtomium falcatum | Holly Fern | Ferns |
| Cytisus | Broom | Shrubs |
| Cytisus scoparius | Scotch Broom | Shrubs |
| Dahlia | Dahlia | Herbaceous Perennials |
| Daphne | Daphne | Shrubs |
| Dasylirion | Sotol | Perennials |
| Delphinium | Delphinium | Perennials |
| Dennstaedtia punctilobula | Hayscented Fern | Ferns |
| Deutzia | Deutzia | Shrubs |
| Dianthus barbatus | Sweet William | Annuals |
| Dianthus caryophyllus | Carnation | Perennials |
| Dicentra eximia | Fringed Bleeding Heart | Perennials |
| Dicentra spectabilis | Bleeding Heart | Perennials |
| Dictamus alba | Gas Plant | Perennials |
| Digitalis | Foxglove | Perennials |
| Digitalis grandiflora | Yellow Foxglove | Perennials |
| Digitalis purpurea | Purple Foxglove | Perennials |
| Diospyros texana | Texas Persimmon | Small Trees |
| Diospyros virginiana | Persimmon | Trees |
| Dryopteris | Wood Fern | Ferns |
| Dryopteris marginalis | Marginal Wood Fern | Ferns |
| Echinacea angustifolia | Blacksamson Echinacea | Perennials |
| Echinacea purpurea | Purple Coneflower | Perennials |
| Echinops ritro | Small Globe Thistle | Perennials |
| Echium fastuosum | Pride of Madeira | Perennials |
| Elaeagnus angustifolia | Russian Olive | Small Trees |
| Elaeagnus commutata | Silverberry | Shrubs |
| Elaeagnus pungens | Silverthorn | Shrubs |
| Elaeagnus umbellatus | Autumn Olive | Shrubs |
| Endymion non-scriptus | Bluebell | Bulbs |
| Enkianthus campanulatus | Redvein Enkianthus | Shrubs |
| Epimedium | Barrenwort | Ground Covers |
| Eragrostus curvula | Weeping Love Grass | Ornamental Grasses |
| Erianthus hyemalis | Winter Aconite | Bulbs |
| Erianthus ravennae | Ravenna Grass | Ornamental Grasses |
| Erica | Heath | Shrubs |
| Erythea armata | Mexican Blue Palm | Trees |
| Erythronium | Trout Lily | Perennials |
| Eschscholzia californica | California Poppy | Annuals |
| Eupatorium coelestinurn | Mist Flower | Perennials |
| Eupatorium purpureum | Bluestem Joe-Pye-Weed | Perennials |
| Eupatorium rugosum | White Snakeroot | Perennials |
| Euphorbia | Spurge | Perennials |
| Euphorbia marginata | Snow-on-the-Mountain | Annuals |
| Fagus sylvatica | European Beech | Trees |
| Fargesia | Clump Bamboo | Ornamental Grasses |
| Festuca glauca | Blue Fescue | Ornamental Grasses |
| Ficus | Fig | Small Trees |
| Ficus carica | Edible Fig | Trees |
| Forsythia | Forsythia | Shrubs |
| Forsythia x intermedia | Showy Forsythia | Shrubs |
| Fothergilla | Fothergilla | Shrubs |
| Fraxinus excelsior | European Ash | Trees |
| Fraxinus pennsylvanica | Green Ash | Trees |
| Fraxinus velutina | Arizona Ash | Trees |
| Fritillaria | Fritillary | Bulbs |
| Fritillaria imperialis | Crown Imperial Fritillaria | Bulbs |
| Gaillardia pulchella | Gaillardia | Annuals |
| Galanthus nivalis | Snowdrops | Bulbs |
| Galium odoratum | Sweet Woodruff | Ground Covers |
| Gardenia | Gardenia | Shrubs |
| Garrya lindheimeri | Mexican Silktassle | Shrubs |
| Gaultheria procumbens | Creeping Wintergreen | Ground Covers |
| Gelsemium sempervirens | Carolina Jessamine | Vines |
| Geranium macrorrhizum | Hardy Geranium | Perennials |
| Geranium sanguineum | Cranesbill Geranium | Perennials |
| Gerbera jamesonii | Gerbera Daisy | Herbaceous Perennials |
| Ginkgo biloba | Ginkgo | Trees |
| Gladiolus | Gladiolus | Bulbs |
| Gleditsia triacanthos | Honey Locust | Trees |
| Gloriosa superba | Glory Lily | Perennials |
| Gordonia lisianthus | Gordonia | Trees |
| Gypsophila | Baby's Breath | Perennials |
| Hakea suaveolens | Sweet Hakea | Shrubs |
| Hakonechloa macra | Hakonechloa | Ornamental Grasses |
| Halesia carolina | Carolina Silverbell | Shrubs |
| Halimodendron halodendron | Siberian Salt Tree | Shrubs |
| Hamamelis virginiana | Common Witchhazel | Shrubs |
| Hedera helix baltica | Baltic Ivy | Vines |
| Helenium autumnale | Sneezeweed | Perennials |
| Helianthus | Sunflower | Perennials |
| Helichrysum | Strawflower | Annuals |
| Helictotrichon sempervirens | Blue Oat Grass | Ornamental Grasses |
| Heliotropium arborescens | Heliotrope | Annuals |
| Helleborus | Hellebore | Perennials |
| Helleborus niger | Christmas Rose | Perennials |
| Helleborus orientalis | Lenten Rose | Herbaceous Perennials |
| Hemmerocallis 'Stella de Oro' | Stella de Oro Daylily | Perennials |
| Hesperis matronalis | Dame's Rocket | Perennials |
| Heuchera micrantha | Coral Bells | Perennials |
| Hibiscus syriacus | Rose of Sharon | Shrubs |
| Hippophae rhamnoides | Sea Buckthorn | Shrubs |
| Hyacinthus orientalis | Hyacinth | Bulbs |
| Hypericum calycinum | Aarons Beard | Ground Covers |
| Hypericum prolificum | St. John's Wort | Shrubs |
| Hyssopus officinalis | Hyssop | Perennials |
| Hystrix patula | Bottlebrush Grass | Ornamental Grasses |
| Iberis sempervirens | Evergreen Candytuft | Perennials |
| Iberis umbellata | Globe Candytuft | Annuals |
| Ilex aquifolium | English Holly | Shrubs |
| Ilex cornuta | Chinese Holly | Shrubs |
| Ilex crenata | Japanese Holly | Shrubs |
| Ilex glabra | Inkberry Holly | Shrubs |
| Ilex opaca | American Holly | Trees |
| Ilex verticillata | Winterberry Holly | Shrubs |
| Ilex vomitoria | Dwarf Yaupon | Shrubs |
| Ilex x 'John T. Morris' | John T. Morris Holly | Shrubs |
| Ilex x 'Lydia Morris' | Lydia Morris Holly | Shrubs |
| Ilex x aquipernyi | Aquipernyi Holly | Trees |
| Illicium | Anisetree | Shrubs |
| Imperata cylindrica | Japanese Blood Grass | Ornamental Grasses |
| Ipomoea | Morning Glory | Annuals |
| Iris | Iris | Perennials |
| Itea virginica | Virginia Sweetspire | Shrubs |
| Ixex cornuta | Dwarf Chinese Holly | Shrubs |
| Jasminum | Jasmine | Shrubs |
| Jasminum nudiflorum | Winter Jasmine | Vines |
| Juncus effusus | Soft Rush | Ornamental Grasses |
| Juncus inflexus | Hard Rush | Ornamental Grasses |
| Juniperus | Juniper | Shrubs |
| Juniperus chinensis | Chinese Juniper | Shrubs |
| Juniperus communis | Common Juniper | Shrubs |
| Juniperus horizontalis | Creeping Juniper | Shrubs |
| Juniperus sabina | Savin Juniper | Shrubs |
| Juniperus scopulorum | Rocky Mountain Juniper | Shrubs |
| Juniperus squamata | Singleseed Juniper | Shrubs |
| Juniperus virginiana | Eastern Red Cedar | Trees |
| Kalmia latifolia | Mountain Laurel | Shrubs |
| Kerria japonica | Japanese Kerria | Shrubs |
| Kirengeshoma palmata | Yellow Wax-Bells | Perennials |
| Kniphofia uvaria | Red Hot Poker | Perennials |
| Koeleria glauca | Large Blue June Grass | Ornamental Grasses |
| Koelreuteria paniculata | Goldenrain Tree | Trees |
| Kolkwitzia amabilis | Beautybush | Shrubs |
| Lagerstroemia indica | Crape Myrtle | Shrubs |
| Lamium maculatum | Spotted Dead Nettle | Ground Covers |
| Lantana camara | Common Lantana | Shrubs |
| Lantana montevidensis | Weeping Lantana | Annuals |
| Lathyrus odoratus | Sweet Pea | Annuals |
| Lavandula | Lavender | Perennials |
| Leucojum | Snowflake | Bulbs |
| Leucojum aestivum | Summer Snowflake | Bulbs |
| Leucophyllum | Barometer Bush | Shrubs |
| Leucothoe | Leucothoe | Shrubs |
| Leucothoe axillaris | Coast Leucothoe | Shrubs |
| Leucothoe fontanesiana | Drooping Leucothoe | Shrubs |
| Leymus arenarius glaucous | Lyme Grass | Ornamental Grasses |
| Liatris | Blazing Star | Perennials |
| Liatris spicata | Dense Blazing Star | Perennials |
| Ligularia 'The Rocket' | Rocket Ligularia | Perennials |
| Ligularia dentata | Bigleaf Goldenray | Perennials |
| Ligustrum | Privet | Shrubs |
| Ligustrum vulgare | European Privet | Shrubs |
| Limonium latifolium | Statice | Perennials |
| Linaria vulgaris | Butter and Eggs | Perennials |
| Lindera benzoin | Spicebush | Shrubs |
| Liquidambar styraciflua | Sweetgum | Trees |
| Liriodendron tulipifera | Tulip Tree | Trees |
| Liriope | Lilyturf | Ground Covers |
| Lobelia | Lobelia | Annuals |
| Lobelia cardinalis | Cardinal Flower | Perennials |
| Lobelia laxiflora | Sierra Madre Lobelia | Annuals |
| Lobularia maritima | Sweet Alyssum | Annuals |
| Lonicera | Honeysuckle | Vines |
| Lonicera sempervirens | Trumpet Honeysuckle | Vines |
| Lunaria annua | Money Plant | Biennials |
| Lupinus | Lupine | Perennials |
| Lupinus texensis | Bluebonnet | Annuals |
| Lychnis chalcedonica | Maltese Cross | Perennials |
| Lychnis coronaria | Rose Champion | Perennials |
| Lyonothamnus floribundus | Catalina Ironwood | Trees |
| Macleaya cordata | Plume Poppy | Perennials |
| Magnolia grandiflora | Southern Magnolia | Trees |
| Magnolia x soulangiana | Saucer Magnolia | Shrubs |
| Mahonia aquifolium | Oregon Grape Holly | Shrubs |
| Mahonia bealei | Leatherleaf Mahonia | Shrubs |
| Malvaviscus arboreus | Wax Mallow | Shrubs |
| Marrubium vulgare | Horehound | Perennials |
| Matricaria | Mayweed | Annuals |
| Matteuccia struthiopteris | Ostrich Fern | Ferns |
| Matthiola | Stock | Annuals |
| Melampodium | Blackfoot | Perennials |
| Melampodium leucanthum | Plains Blackfoot | Perennials |
| Melia azedarach | Chinaberry Tree | Trees |
| Melianthus major | Honey Bush | Shrubs |
| Melissa officinalis | Lemon Balm | Perennials |
| Mentha | Mint | Perennials |
| Mentha spicata | Spearmint | Ground Covers |
| Mertensia virginica | Virginia Bluebells | Perennials |
| Metasequoia glyptostroboides | Dawn Redwood | Trees |
| Michelia fuscata | Banana Shrub | Shrubs |
| Microbiota decussata | Russian Cypress | Shrubs |
| Mimosa borealis | Fragrant Mimosa | Shrubs |
| Mirabilis jalapa | Four O'Clocks | Herbaceous Perennials |
| Miscanthus floridulis | Pacific Island Silver Grass | Ornamental Grasses |
| Miscanthus sinensis | Japanese Silver Grass | Ornamental Grasses |
| Molinia caerulea | Purple Moor Grass | Ornamental Grasses |
| Monarda didyma | Bee Balm | Perennials |
| Muscari | Grape Hyacinth | Bulbs |
| Myosotis | Forget-Me-Not | Perennials |
| Myosotis alpestris | Asian Forget-Me-Not | Biennials |
| Myosotis scorpioides | True Forget-Me-Not | Annuals |
| Myosotis sylvatica | Woodland Forget-Me-Not | Annuals |
| Myrica californica | California Wax Myrtle | Trees |
| Myrica cerifera | Wax Myrtle | Shrubs |
| Myrica pennsylvanica | Northern Bayberry | Shrubs |
| Nandina | Nandina | Shrubs |
| Nandina domestica | Heavenly Bamboo | Shrubs |
| Narcissus | Daffodil | Bulbs |
| Nepeta cataria | Catnip | Perennials |
| Nephrolepis | Sword Fern | Ferns |
| Nerium oleander | Oleander | Shrubs |
| Nicotiana alata | Flowering Tobacco | Annuals |
| Nolina | Beargrass | Perennials |
| Nolina parryi | Parry's Beargrass | Perennials |
| Ocimum basilicum | Basil | Annuals |
| Onoclea sensibilis | Sensitive Fern | Ferns |
| Ophiopogon japonicus | Dwarf Mondo Grass | Ornamental Grasses |
| Opuntia | Prickly Pear | Perennials |
| Origanum majorana | Marjoram | Perennials |
| Origanum vulgare | Oregano | Perennials |
| Osmanthus heterophyllus | Holly Osmanthus | Shrubs |
| Osmunda cinnamomea | Cinnamon Fern | Ferns |
| Osmunda regalis | Royal Fern | Ferns |
| Oxalis | Wood Sorrel | Bulbs |
| Oxalis oregana | Redwood Sorrel | Ground Covers |
| Oxydendrum arboreum | Sourwood | Trees |
| Pachysandra procumbens | Allegheny Spurge | Ground Covers |
| Pachysandra terminalis | Pachysandra | Ground Covers |
| Paeonia | Peony | Perennials |
| Panicum virgatum | Switch Grass | Ornamental Grasses |
| Papaver orientale | Oriental Poppy | Perennials |
| Papaver rhoeas | Poppy | Annuals |
| Patrinia scabiosifolia | Patrinia | Perennials |
| Pediocactus | Hedgehog Thistle | Perennials |
| Pelargonium | Geranium | Annuals |
| Pennisetum alopecuroides | Fountain Grass | Ornamental Grasses |
| Pennisetum orientale | Oriental Fountain Grass | Ornamental Grasses |
| Pentas | Pentas | Annuals |
| Perilla frutescens | Shiso | Annuals |
| Perovskia atriplicifolia | Russian Sage | Perennials |
| Petroselinum crispum | Parsley | Annuals |
| Phalaris arundinaceae | Ribbon Grass | Ornamental Grasses |
| Philadelphus | Mock Orange | Shrubs |
| Philadelphus coronarius | Sweet Mock Orange | Shrubs |
| Phlomis | Jerusalem Sage | Perennials |
| Phoenix dactylifera | Date Palm | Trees |
| Phormium tenax | New Zealand Flax | Perennials |
| Phyllostachys aurea | Golden Bamboo | Ornamental Grasses |
| Physostegia virginiana | Obedient Plant | Perennials |
| Picea | Spruce | Trees |
| Picea abies | Norway Spruce | Trees |
| Picea glauca | White Spruce | Trees |
| Picea glauca 'Conica' | Dwarf Alberta Spruce | Trees |
| Picea omorika | Serbian Spruce | Trees |
| Picea pungens | Colorado Blue Spruce | Trees |
| Pieris floribunda | Mountain Pieris | Shrubs |
| Pieris japonica | Japanese Pieris | Shrubs |
| Pimpinella anisum | Anise | Annuals |
| Pinus | Pine | Trees |
| Pinus densiflora | Japanese Red Pine | Trees |
| Pinus mugo | Mugo Pine | Shrubs |
| Pinus nigra | Austrian Pine | Trees |
| Pinus resinosa | Red Pine | Trees |
| Pinus rigida | Pitch Pine | Trees |
| Pinus strobus | Eastern White Pine | Trees |
| Pinus sylvestris | Scotch Pine | Trees |
| Pinus thunbergiana | Japanese Black Pine | Trees |
| Plectranthus ciliatus | Speckled Spur Flower | Annuals |
| Podophyllum | May Apple | Perennials |
| Polemonium caeruleum | Jacob's Ladder | Perennials |
| Poliomintha longifolia | Mexican Oregano | Shrubs |
| Polystichum arcostichoides | Christmas Fern | Ferns |
| Potentilla | Cinquefoil | Perennials |
| Potentilla fruticosa | Shrubby Cinquefoil | Shrubs |
| Primula | Primrose | Perennials |
| Prunus americana | American Plum | Shrubs |
| Prunus caroliniana | Carolina Cherry Laurel | Shrubs |
| Prunus fruticosa | Groundcherry | Shrubs |
| Prunus laurocerasus | Cherry Laurel | Shrubs |
| Prunus serrulata | Japanese Flowering Cherry | Trees |
| Prunus tenella | Dwarf Russian Almond | Shrubs |
| Pseudotsuga menziesii | Douglas Fir | Trees |
| Pulmonaria | Lungwort | Perennials |
| Pyracantha 'M. Roemer' | Firethorn | Shrubs |
| Pyracantha coccinea | Scarlet Firethorn | Shrubs |
| Quillaja saponaria | Soapbark Tree | Trees |
| Ranunculus | Buttercup | Perennials |
| Rhamnus | Buckthorn | Shrubs |
| Rhamnus cathartica | Common Buckthorn | Shrubs |
| Rheum rhabarbarum | Rhubarb | Perennials |
| Rhododendron 'Olga Mezitt' | Olga Rhododendron | Shrubs |
| Rhododendron 'PJM' | PJM Rhododendron | Shrubs |
| Rhododendron roseum | Rhododendron | Shrubs |
| Rhus aromatica | Fragrant Sumac | Shrubs |
| Rhus lanceolata | Flameleaf Sumac | Small Trees |
| Rhus ovata | Sugar Bush | Shrubs |
| Rhus trilobata | Skunkbush Sumac | Shrubs |
| Rhus virens | Evergreen Sumac | Shrubs |
| Ribes | Currant | Shrubs |
| Robinia pseudoacacia | Black Locust | Trees |
| Rodgersia | Rodgers Flower | Perennials |
| Romneya coulteri | Matilija Poppy | Perennials |
| Rosa 'Betty Bland' | Betty Bland Rose | Shrubs |
| Rosa 'Haidee' | Haidee Rose | Shrubs |
| Rosa laevigata | Cherokee Rose | Vines |
| Rosa rugosa | Rugosa Rose | Shrubs |
| Rosa virginiana | Virginia Rose | Shrubs |
| Rosa wichuraiana | Memorial Rose | Shrubs |
| Rosmarinus officinalis | Rosemary | Perennials |
| Rubus | Thorny Blackberry | Shrubs |
| Rudbeckia | Coneflower | Perennials |
| Rudbeckia hirta | Black Eyed Susan | Perennials |
| Ruta graveolens | Rue | Perennials |
| Sabal blackburniana | Hispaniola Palmetto | Shrubs |
| Salix matsudana tortuosa | Corkscrew Willow | Trees |
| Salvia | Sage | Perennials |
| Salvia farinacea | Mealy Blue Sage | Herbaceous Perennials |
| Salvia greggii | Autumn Sage | Shrubs |
| Salvia leucantha | Mexican Bush Sage | Perennials |
| Salvia nemorosa | Meadow Sage | Perennials |
| Salvia officinalis | Garden Sage | Perennials |
| Salvia roemeriana | Cedar Sage | Herbaceous Perennials |
| Salvia splendens | Scarlet Sage | Annuals |
| Sambucus canadensis | American Elder | Shrubs |
| Sambucus racemosa | Red Elderberry | Shrubs |
| Santolina | Santolina | Ground Covers |
| Santolina chamaecyparissus | Lavender Cotton | Perennials |
| Saponaria officinalis | Soapwort | Perennials |
| Sarcoccoca hookeriana | Sweet Box | Shrubs |
| Sassafras albidurn | Common Sassafras | Trees |
| Satureja montana | Savory | Perennials |
| Scabiosa caucasica | Pincushin Flower | Perennials |
| Schizachyrium scoparium | Little Bluestem | Ornamental Grasses |
| Scilla siberica | Siberian Squill | Bulbs |
| Scirpus lacustris | Sedge | Ornamental Grasses |
| Sempervivum | Hens and Chicks | Perennials |
| Senecio cineraria | Silver Ragwort | Annuals |
| Sheperdia argentea | Buffaloberry | Shrubs |
| Skimmia japonica | Japanese Skimmia | Shrubs |
| Solanum | Nightshade | Vines |
| Solanum pseudocapsicum | Jerusalem Cherry | Shrubs |
| Solidago | Goldenrod | Perennials |
| Sophora secundiflora | Mescal Bean | Small Trees |
| Sorghastrum nutans | Indian Grass | Ornamental Grasses |
| Spiraea | Spirea | Shrubs |
| Spiraea japonica | Japanese Spirea | Shrubs |
| Spiraea prunifolia | Bridalwreath Spirea | Shrubs |
| Spiraea x bumalda | Anthony Waterer Spirea | Shrubs |
| Stachys byzantina | Lamb's Ear | Perennials |
| Stokesia laevis | Stokes' Aster | Perennials |
| Symphoricarpos albus | Snowberry | Shrubs |
| Symphoricarpos x chenaultii | Coralberry | Shrubs |
| Symplocarpos foetidus | Skunk Cabbage | Perennials |
| Syringa reticulata | Japanese Tree Lilac | Shrubs |
| Syringa villosa | Late Lilac | Shrubs |
| Syringa vulgaris | Common Lilac | Shrubs |
| Syzygium paniculatum | Brush Cherry | Trees |
| Tagetes | Marigold | Annuals |
| Tagetes lucida | Mexican Mint Marigold | Perennials |
| Tagetes patula | French Marigold | Annuals |
| Tanacetum vulgare | Common Tansy | Perennials |
| Taxodium distichum | Bald Cypress | Trees |
| Tecomaria capensis | Cape Honeysuckle | Vines |
| Teucrium | Germander | Shrubs |
| Teucrium chamaedrys | Wall Germander | Perennials |
| Teucrium fruticans | Shrubby Germander | Shrubs |
| Thalictrum | Meadow Rue | Perennials |
| Thelyptens noveboracensis | New York Fern | Ferns |
| Thymus | Thyme | Perennials |
| Tiarella cordifolia | Foam Flower | Perennials |
| Trachelospermum asiaticum | Asiatic Jasmine | Ground Covers |
| Trachelospermum jasminoides | Star Jasmine | Vines |
| Trachycarpus fortunei | Windmill Palm | Trees |
| Tradescantia | Spiderwort | Perennials |
| Tricyrtis hirta | Toad Lily | Perennials |
| Trillium | Trillium | Perennials |
| Tropaeolum majus | Nasturtium | Annuals |
| Tsuga canadensis | Canada Hemlock | Trees |
| Tulbaghia violacea | Society Garlic | Bulbs |
| Ungnadia speciosa | Mexican Buckeye | Shrubs |
| Verbascum thapsus | Mullein | Perennials |
| Verbena | Verbena | Annuals |
| Veronica | Speedwell | Perennials |
| Veronica officinalis | Common Speedwell | Perennials |
| Viburnum | Viburnum | Shrubs |
| Viburnum carlesii | Koreanspice Viburnum | Shrubs |
| Viburnum dentatum | Arrowwood Viburnum | Shrubs |
| Viburnum opulus | Highbush Cranberry | Shrubs |
| Viburnum plicatum tomentosurn | Doublefile Viburnum | Shrubs |
| Viburnum prunifolium | Blackhaw Viburnum | Shrubs |
| Viburnum rhytidophyllum | Leatherleaf Viburnum | Shrubs |
| Viburnum x juddii | Judd Viburnum | Shrubs |
| Vinca major | Large Periwinkle | Ground Covers |
| Vinca minor | Common Periwinkle | Ground Covers |
| Vinca rosea | Rose Periwinkle | Perennials |
| Viola | Violets | Perennials |
| Weigela florida | Weigela | Shrubs |
| Wisteria floribunda | Japanese Wisteria | Vines |
| Wisteria frutescens | American Wisteria | Vines |
| Yucca | Yucca | Perennials |
| Yucca filamentosa | Adam's Needle | Shrubs |
| Zantedeschia aethiopica | Calla Lily | Perennials |
| Zauschneria californica | California Fuchsia | Perennials |
| Zexmenia hispida | Zexmenia | Ground Covers |
| Zinnia | Zinnia | Annuals |
| Zinnia elegans | Common Zinnia | Annuals |
