LATIN NAME

COMMON NAME

MONTH W’SOWN

MONTH GERM

Acer

Maple - Japanese Red

N

Acer

Maple - unspecified

N

Achillea

Achillea - unspecified

N

Achillea millefolium

Achillea - unspecified

Y

Achillea millefolium

Achillea 'Cerise Queen'

Jan

N

Achillea millefolium

Achillea 'Colorado Mix'

Y

Achillea millefolium

Achillea 'Paprika'

N

Achillea ptarmica

Achillea 'The Pearl'

Mar

Mar

Aconitum carmichaelii

Monkshood

Y

Adenophora confusa

Ladybells

Y

Agastache

Agastache 'Licorice Blue'

Y

Agastache

Anise Hyssop

Y

Agastache anisata

Agastache - unspecified

Y

Agastache aurantica

Agastache 'Apricot Sprite'

Mar

Apr

Agastache foeniculum

Anise Hyssop - unspecified

Y

Agastache hybrid

Agastache 'Honey Bee White'

Mar

Apr

Agastache rugosa

Hyssop Korean - unspecified

Y

Agastache rupestris

Agastache 'Apricot Sunrise'

Y

Ageratum

Ageratum - unspecified

Y

Alcea rosea

Hollyhock - unspecified

Feb

Apr

Alcea rosea

Hollyhock - unspecified

Feb

May

Alchemilla mollis

Lady's Mantle

Jan

Apr

Allium

Allium - unspecified

Y

Allium aflatunense

Allium 'Purple Sensation'

N

Allium cernuum

Nodding Onion

Y

Allium Christophii

Star of Persia

N

Alonsoa

Mask Flower

N

Alyssum

Alyssum - unspecified

Y

Amaranthus

Amaranthus - unspecified

Y

Amaranthus

Amaranthus 'Magic Fountain'

Y

Amaranthus caudatus

Love-Lies-Bleeding - Green

Apr

Apr

Amaranthus caudatus

Love-Lies-Bleeding 'Fat Spike'

Apr

Apr

Amaranthus caudatus

Love-Lies-Bleeding 'Hopi Red Dye'

Mar

Apr

Amaranthus caudatus

Love-Lies-Bleeding 'Joseph's Coat'

Apr

Apr

Amaranthus caudatus

Love-Lies-Bleeding 'Opopeo'

Apr

Apr

Amaranthus hybridus

Amaranthus 'Intense Purple'

Mar

Apr

Amelanchier

Serviceberry

Y

Ameria maritima

Sea Pinks / Thrift

Mar

Apr

America maritima

Sea Pinks 'Formosa' Hybrids

Y

Ammi majus

False Queen Anne's Lace

Mar

Apr

Ammobium alatum

Winged Everlasting 'Grandiflorum'

Mar

Apr

Amorpha fruticosa

False Indigo Bush

Jan

Apr

Ampelopsis brevipedunculata

Porcelain Vine

N

Amsonia

Ammsonia - unspecified

Y

Anagallis monellii

Anagallis 'Gentian Mix'

Y

Anaphalis margaritacea

Pearly Everlasting

Y

Anchusa azurea

Bugloss 'Dropmore'

N

Androsace

Rockjasmine

Y

Anemone japonica

Anemone - Japanese

Y

Anemone virginiana

Thimbleweed

Y

Angelica

Angelica

N

Angelica gigas

Angelica - Korean

Y

Antennaria cana

Antennaria

Y

Anthemis tinctoria

Marguerite golden 

N

Antirrhinum

Snapdragon - unspecified

Y

Antirrhinum braun-blanquetii

Snapdragon perennial Dwarf Dark

Y

Antirrhinum majus

Snapdragon 'Gum Drops Mix'

Mar

Apr

Antirrhinum majus

Snapdragon 'Magic Carpet'

Mar

Apr

Antirrhinum majus

Snapdragon 'Royal Bride'

Mar

Apr

Aptinia

Ice Plant

Mar

Apr

Aquilegia

Columbine 'Magpie'

N

Aquilegia

Columbine - unspecified

Y

Aquilegia

Columbine 'Barlow mix'

Y

Aquilegia

Columbine 'Dragonfly'

Y

Aquilegia

Columbine 'Harlequin'

Y

Aquilegia

Columbine 'Nora Barlow'

Y

Aquilegia

Columbine 'Music Harmony'

Y

Aquilegia

Columbine 'Origami Mix'

Y

Aquilegia

Columbine 'William Guiness'

Y

Aquilegia

Columbine 'Woodside Variegated'

Y

Aquilegia canadensis

Columbine - Native

Y

Aquilegia clematiflora

Columbine 'Pink & Purple Shades'

Jan

May

Aquilegia flabellata

Columbine 'Blue Angel'

Mar

May

Aquilegia vulgais

'Robin'

Feb

Apr

Aquilegia x caerulea

Columbine 'Origami Blue'

Feb

May

Aquilegia x caerulea

Columbine 'Origami Yellow'

Feb

May

Arabis caucasica

Rock Cress

N

Archangelica archangelica

Angelica

N

Arctotis stoechadifolia

Daisy African

Y

Aristolochia gigantea

Dutchman's Pipe Vine

Y

Armeria

Sea Thrift - White

Y

Artemisia

Wormwood

N

Artemisia sacrorum

Artemisia

Y

Artemisia stelleriana

Dusty Miller

N

Arum purpureospathum & Arum italicum

Italian Lords and Ladies

N

Aruncus dioicus

Goat's beard

N

Asclepias

Asclepias - unspecified

Y

Asclepias curassavica

Asclepias 'Red Butterfly'

Mar

Apr

Asclepias curassavica

Asclepias 'Silky Gold'

Mar

Apr

Asclepias incarnata

Asclepias - Butterfly Weed 'Ice Ballet'

Y

Asclepias syriaca

Asclepias - unspecified

Y

Asclepias tuberosa

Butterfly Weed - unspecified

Y

Asclepias tuberosa

Milkweed - yellow

Y

Aslepias incarnata

Butterfly Weed - unspecified

Y

Aster

Aster - unspecified

Y

Aster alpinus

Alpine Aster

Feb

Apr

Aster chinensis

Aster "Matsumoto'

Apr

Apr

Aster chinensis

Aster 'Astoria Mix'

N

Aster chinensis

Aster 'Ballet Mix'

Mar

Apr

Aster chinensis

Aster 'Crego Mix'

Mar

Apr

Aster chinensis

Aster 'Eclipse'

Mar

Apr

Aster chinensis

Aster 'Florette Champagne'

Apr

Apr

Aster chinensis

Aster 'Lilliput Blue Moon'

Apr

Apr

Aster chinensis

Aster 'Pink Tower'

Mar

Apr

Aster chinensis

Aster 'Powderpuff' mix

Mar

Apr

Aster chinensis

Chinese Aster - unspecified

Jan

Apr

Aster laevis

Aster 'Bluebird'

N

Aster novae-angliae

New England Aster - unspecified

Y

Aster novae-angliae

New England Aster 'Purple Dome'

N

Aster novae-belgii

New York Aster

Y

Aster novae-belgii

Aster 'Woods Pink'

N

Aster oblongifolius

Aromatic Aster

Jan

Apr

Aster oolentangiensis

Sky Blue Aster

Dec

Apr

Astilbe

Astilbe - unspecified

Y

Astilbe x arendsii

Astilbe - unspecified

Y

Astilbe japonica

Astilbe   'Deutschland'

N

Astilbe taquetii

Fall Astilbe

Jan

Apr

Astilbe x arendsii

Astilbe 'Snowdrift'

N

Astragalus canadensis

Canadian Milk Vetch

Jan

May

Astrantia major

Astrantia / Masterwort

Feb

Apr

Astrantia major 

Astrantia 'Ruby Cloud'

N

Astrantia major 

Astrantia 'Sunningdale'

N

Aubrieta deltoidea

Rock Cress - unspecified

Y

Aubrieta deltoidea

Rock Cress 'Whitewell Gem'

Y

Aurinia

Basket-of-Gold - unspecified

Y

Aurinia saxatilis

Basket-of-Gold 'Gold Dust'

Y

Baptisia alba

Wild White Baptisia

N

Baptisia australis

Wild Blue Indigo / Baptisia

Jan

Apr

Baptisia tinctoria

Wild Indigo

Feb

Apr

Belamcanda chinensis

Blackberry Lily - unspecified

Jan

May

Bellis perennis

English Daisy - unspecified

N

Bellis perennis

English Daisy 'Pomponette Mixed'

Jan

N

Bellis perennis

English Daisy 'Red Tips'

Jan

Mar

Bergenia cordifolia

Pigsqueak 'Redstart'

Y

Berkheya purpurea

Purple Bekheya

Apr

Apr

Berlandiara lyrata

Chocolate Flower

Feb

Apr

Betula papyrifera

White Birch

N

Boltonia asteroides

False Aster

Jan

Mar

Boltonia asteroides

False Aster

Mar

Apr

Brachycome iberidfolia

Swan River Daisy

Apr

Apr

Brugmansia suaveolens

Angel Trumpet

Y

Buddleia  davidii

Butterfly Bush  'Nanho Blue'

Y

Buddleia davidii

Butterfly Bush - unspecified

Y

Buddleia davidii

Butterfly Bush - unspecified

Dec

Apr

Buddleia davidii

Butterfly Bush 'Black Knight'

Feb

May

Buddleia davidii

Butterfly Bush 'Empire Blue' 

Y

Buddleia davidii

Butterfly Bush 'Harlequin'

Jan

N

Buddleia davidii

Butterfly Bush 'Pink Delight'

Feb

N

Buddleia davidii

Dwarf Butterfly Bush 'White Ball'

Feb

N

Cacalia atriplicifolia

Pale Indian Plantain

Jan

May

Cactus

Cactus - Hardy

Y

Calendula officinalis

Calendula - unspecified

Y

Calendula officinalis

Calendula 'Citrus Smoothies'

Mar

Apr

Calendula officinalis

Calendula 'Indian Prince'

Apr

Apr

Calendula officinalis

Calendula 'Kalblouna Gold'

Apr

Apr

Calendula officinalis

Calendula 'Pacific Apricot'

Apr

Apr

Calendula officinalis

Calendula 'Pacific Beauty'

Mar

Apr

Calendula officinalis

Calendula 'Porcupine'

Apr

Apr

Calendula officinalis

Calendula 'Princess Mixed'

Mar

Apr

Calliopsis

Calliopsis

N

Callirhoe

Mallow Poppy

N

Callirhoe involucrata

Mallow Poppy/Prairie Wine Cups

Jan

N

Campanula

Bellflower - unspecified

Y

Campanula carpatica

Bellflower - unspecified

Y

Campanula carpatica

Bellflower 'Blue Chips'

N

Campanula cochlearifolia

Earleaf Bellflower

Y

Campanula glomerata

Bellflower 'Superba'

Y

Campanula lactiflora

Milky Bellflower

Y

Campanula latifolia

Great Bellflower

Dec

Apr

Campanula medium

Canterbury Bells

Jan

Apr

Campanula persicifolia

Peach-leaf Bellflower 'Telham Beauty'

Mar

Apr

Campanula punctata

Campanula - unspecified

Dec

May

Campanula pyramidalis

Chimney Bellflower

Mar

Apr

Campanula rotundifolia

Scotch Bells

Y

Campanula thyrsoides

Yellow Bellflower

Y

Campanula trachelium

Nettle-leafed Bellflower

Mar

Apr

Campanula trachelium

Nettle-leafed Bellflower 'Bernice'

Mar

Apr

Campsis radicans

Trumpet Vine - unspecified

Y

Campsis radicans

Trumpet Vione - unspecified

Dec

N

Canna

Canna - unspecified

Y

Canna compacta

Canna - unspecified

Y

Canna flaccida

Golden Canna

Y

Canna generalis

Canna - unspecified

Y

Caphalanthus occidentalis

Buttonbush

Jan

Apr

Caphalanthus occidentalis

Buttonbush

Mar

Apr

Caragana arborescens

Siberian Pear Shrub

Y

Carex flagellifera

Weeping Brown Sedge

Y

Carpanthea

Carpanthes 'Golden Carpet'

Apr

May

Caryopteris 

Spirea 'Dark Knight'

N

Caryopteris x clandonensis

Mist Shrub 'Worcester gold'

N

Cassia alata

Senna - Wild

Jan

Apr

Catalpa

Catalpa 

Y

Catanache caerulea

Cupid's Dart - unspecified

Y

Catanache caerulea

Cupid's Dart 'Bicolor'

Jan

Mar

Catharanthus roseus

Vinca - Stardust Mix

N

Catharanthus roseus

Vinca - unspecified

Y

Catharanthus roseus

Vinca 'Cascade Appleblossom'

N

Celamtis tangutica

Golden Clematis

Feb

Apr

Celosia

Celosia - unspecified

N

Celosia argentea var. cristata

Celosia 'Castle Pink'

Mar

Apr

Celosia argentea var. plumosa

Celosia 'Apricot Brandy'

Mar

Apr

Celosia cristata

Celosia 'Chief Mix'

Mar

Apr

Celosia plumosa

Celosia Pompas Plume

Apr

Apr

Celosia spicata

Celosia 'Flamingo Feather'

Apr

Apr

Celosia spicata

Celosia 'Flamingo Feather'

Mar

Apr

Celosia spicata

Celosia 'Flamingo Purple'

Mar

Apr

Celtis occidentalis

Hackberry

N

Centaurea cyanus

Bachelor Button - unspecified

Y

Centaurea cyanus

Bachelor Buttons – Cornflower

'Black Boy'

Y

Centaurea cyanus

Bachelor Buttons - Cornflower

'Blue Boy'

Mar

Mar

Centaurea cyanus

Bachelor Buttons – Cornflower

'Blue Boy'

Mar

Apr

Centaurea cyanus

Bachelor Buttons - Doubles

Mar

Mar

Centaurea cyanus

Bachelor Buttons 'Polka Dot Mixed'

Mar

Mar

Centaurea cyanus

Bachelor Buttons 'Polka Dot Mixed'

Mar

Apr

Centaurea dealbata

Cornflower - Persion

Jan

Mar

Centaurea hypoleuca

Cornflower 'John Coutt's'

Y

Centaurea macrocephala

American Basket Flower

N

Centaurea montana

Cornflower 'Alba'

Y

Centaurea montana

Mountain Bluets

Dec

N

Centaurea montana

Mountain Bluets

Y

Centranthus ruber

Jupiter's Beard - unspecified

Y

Centranthus ruber

Jupiter's Beard 'Snow Cloud'

Dec

May

Centranthus ruber

Valerian 

N

Cephalanthus occidentalis

Button Bush

Mar

Cephalphora aromatica

Cephalaphora

Apr

Apr

Cerastigma plumbaginoides