SCIENTIFIC NAME

BENCH

COMMON NAME

LIGHT

HEIGHT

BLOOM

ZONE

Achillea hybrids----------------------------------

9B

Fernleaf Yarrow

™

24-36”

July-Sept

3

Summer Pastels- mixed pastels

Paprika- red flowers with yellow centers

Coronation Gold – gold flowers; grayish foliage

Schwellenburg – dwarf habit; gold flrs; gray foliage

Feuerland – brick red fading to pink, then tan-gold

Summer Wine – burgundy red fading to blush rose

Moonshine – lemon yellow flat-top blooms; gray lvs

Terra Cotta – bright peach fading to pale terra cotta

Aconitum cammarum Stainless Steel---

4B

Monkshood

X�

18-24”

July-Aug

4

Aconitum carmichaelli Arendsii-----------

4B

Azure Monkshood

™X�

24-48”

Aug-Sept

4

Aconitum napellus------------------------------

4B

Blue Monkshood

™X�

36-48”

July-Aug

4

Aconitum  Bicolor--------------------------------

4B

Monkshood

™X�

36-48”

July-Aug

4

Actaea pachypoda (alba)-------------

3A

White Baneberry

X�

24-48”

May-June

3

Actaea rubra---------------------------------------

3A

Red Baneberry

X�

12-24”

May-June

3

Aegopodium podagraria----------------------

7A

Snow on the Mountain

™X�

12-18”

July

3

Agastache barberi Tutti Frutti-------------

12B

Anise Hyssop

™

36”

June-Sept

5

Agastache foeniculum Golden Jubilee--

12B

Anise Hyssop

™

18-24”

July-Sept

5

Ajuga reptans-------------------------------------

7A

Bugle Weed

™X�

2-6”

May-June

4

Black Scallop- dark, glossy purple-black foliage

Chocolate Chip – diminative chocolate-green leaves; small blue flrs

Burgundy Glow – rose, pink, green and white lvs

Dixie Chip- green, cream and rose purple foliage

Party Colors-pink and green shades

Alcea rosea-----------------------------------------

6B

Hollyhock

™X

20-96”

June-July

3

Single Mix- single flowers, mixed colors

Chater’s Double-  double flowers, mixed colors

Crème De Cassis-raspberry red; 60-72”

Powderpuff Mixed- mixed colors, biennial; 60-96”

Double Mix – double blooms in mixed colors

Nigra – single burgundy, black flowers

Indian Spring – white, yellow, rose or pink; single

Peaches and Dreams – creamy peach and pink double flowers

Alcea rugosa---------------------------------------

6B

Russian Hollyhock

™X

60-72”

June-Aug

4

Alchemilla erythropoda-----------------------

5A

Dwarf Lady’s Mantle

™X�

6-8”

June-Aug

3

Alchemilla mollis --------------------------------

5A

Lady’s Mantle

™X�

12-18”

June

3

Allium cernuum�-------------------------------

9A

Wild Nodding Onion

™X

18-24”

June-July

4

Allium stellatum�-------------------------------

9A

Prairie Onion

™

15-24”

July-Aug

3

Allium hybrids--------------------------------------

7B

Ornamental Onions

™X

15-40”

May-Aug

4

Globemaster- deep violet; 32-40”

Hair-  twisted bright green flowers, electrocuted look; 18-24”

Purple Sensation- violet purple, clump habit; 20-30”

Schubertii- pink and rare, long lasting; 12-18”

Amorpha canescens�--------------------------

9A

Leadplant

™

12-36”

July

3

Amsonia montana Short Stack¯--------

7B

Dwarf  Blue Stars

™X

10-12”

June

5

Amsonia tabernaemontana------------------

7B

Blue Star

™X

36-40”

June-July

4

Amsonia  burbichtii--------------------------------

7B

Narrow Blue Star

™X

36-40”

June-July

4

Anchusa azurea-----------------------------------

8A

Wild Bugloss

™X

36”

June-July

4

Anemone hybrids--------------------------------

1B

Japanese Anemone

™X

24-36”

Aug-Oct

4

Honorine Jobert – heirloom single white variety; 24-30”

September Charm – single rose-pink flowers, lighter on inside; 24-36”

Pamina – rosy red double flowers; 24-30”

Serenade-medium pink w/yellow center; 36-40”

Andrea Atkinson-white with yellow center; 30-35”

Anemone multifida¯----------------------------------

1B

Red Flower Anemone

X

12-18”

May-June

4

Annabella Deep Rose-

Rubra- red flowers; 16-18”

Anemone sylvestris�-------------------------------

1B

Snowdrop Anemone

™X

8-10”

May-Sep

4

Anemonella thalictroides�---------------------

3A

Rue-Anemone

X�

8”

Apr-June

4

Antennaria dioica�-------------------------------

9A

Pussytoes

™

4-10”

May-June

3

Aquilegia alpina----------------------------------

3B

Alpine Columbine

™X

15-20”

June-July

3

Aquilegia caerulea-------------------------------

3B

Rocky Mtn. Columbine

™X

12-24”

June-July

3

Red Hobbit-red and white flowers; 12-14”

Aquilegia canadensis�------------------------

3B

Wild Columbine

™X

18-30”

June-July

3

Aquilegia canadensis Little Lanterns----

3B

Dwarf  Wild Columbine

™X

10-12”

June-July

3

Aquilegia hybrids--------------------------------

3B

Hybrid Columbine

™X

15-36”

June-July

3

McKana’s Giant – mixed shades; 24-30”

Ruby Port-ruby pink colored flowers; 18-24”

Biedermeier-mixed shades; 9-15”

Spring Magic Rose and Ivory-rose pink and ivory; 18-24”

Flabellata ‘Alba’ – white w/ green gray foliage; 10-12”

Flabellata ‘Pumila’-blue w/ white; 6-12”

Dragonfly Mix¯-mixed pastels; 18”

Aquilegia vulgaris--------------------------------

3B

Columbine

X�

16-30”

May-June

4

Clementine Salmon Rose- rose salmon; 18”

Leprechaun Gold-dark purple flower/variegated foliage; 18-24”

Lime Sorbet- lt shade of green; 15-20”

Nora Barlow- pale red, double; 18-24”

Winky Purple and White-purple w/white center; 18-24”

Woodside Variegata¯- violet flowers, speckled foliage;24”

Arabis caucasica---------------------------------

13A

Rock-Cress

™

  6-10”

May-June

4

Rosea La Fraicheur --– pink flowers; grayish lvs; 6-8”

Snowcap – white blooms; grayish foliage; 6-10”

Arabis sturii-------------------------------------------

13A

Rock Cress

™

4-6”

May-June

4

Aralia racemosa�----------------------------------

3A

American Spikenard

�

36-48”

May-June

3

Arenaria montana------------------------------------

13A

Sandwort

™

6-8”

May-June

4

Arisaema triphyllum--------------------------------

3A

Jack-in-the-Pulpit

X�

15-24”

May

4

Armeria maritima -----------------------------------

13A

Sea Thrift

™

6-8”

May-June

4

Alba- white, tufty foliage; 6-8”

Dusseldorf Pride- rosy red flowers,compact growing; 8”

Artemisia hybrid Powis Castle------------------

13B

Wormwood

™

24-30”

July-Aug

5

Artemisia lactiflora Guizhou---------------------

13B 

White Mugwort

™X

36-48”

July-Aug

4

Artemisia ludoviciana Valerie Finnis --------

13B

White Sage

™

15-20”

July

4

Artemisia schmidtiana -----------------------------

13B

Silver Mound

™

10-15”

July

3

Nana- silvery silky foliage; 8-10”

Silver Mound- larger growing than ‘Nana’; 10-16”

Artemisia stellerana Silver Brocade---------

13B

Per. Dusty Miller

™

5-10”

July

4

Aruncus aethusifolius-------------------------------

1A 

Dwarf Goat’s Beard

X�

8-12”

June-July

4

Aruncus dioicus---------------------------------------

1A 

Goat’s Beard

X�

48-60”

June-July

3

Asarum canadense�--------------------------------

3A 

Wild Ginger

X�

6-8”

May

3

Asarum europaeum------------------------------------

3A 

European Ginger

X�

4-6”

May

4

Asclepias exaltata�---------------------------------

9A

Poke Milkweed

™X

36-60”

July-Aug

3

Asclepias incarnata�-------------------------------

9A,9B 

Swamp Milkweed

™X

36-48”

July-Aug

3

Cinderella-rose pink flowers; 36-48”

Ice Ballet-pure white flowers; 36-48”

Soul Mate-rose pink flowers; 36-48”

Asclepias tuberosa�---------------------------------

9A 

Native Butterfly Weed

™

24”

July-Aug

4

Aster alpinus--------------------------------------------

13A

Alpine Aster

™X

10-16’

May-June

5

Dunkle Schone- purple flowers; 10”

Goliath- pale purple flowers; 6-12”

Pinkie-fuschia pink flowers; 6-12’

Aster azureus�----------------------------------------

9A 

Sky Blue Aster

™

24-36”

Aug-Oct

3

Aster divaricatus�-----------------------------------

3A

White Wood Aster

X�

24-30”

July-Sept

3

Aster frikartii Monch--------------------------------

10A

Frikart’s Aster

™X

18-24”

June-Sept

5

Aster laevis�-------------------------------------------

9A 

Smooth Aster

™X

30-48”

Aug-Oct

4

Aster lateriflorus -------------------------------------

9A

Calico Aster

™X

36-48”

Aug-Oct

5

Aster novae-angliae�-------------------------------

9A

New England Aster

™X

36-60”

July-Oct

4

Aster novae-angliae Hybrids--------------------                10A

Alma Potschke – brilliant rose-pink; 36-40”

Purple Dome – royal purple blooms; dwarf at 18-24”

September Ruby – ruby red blooms; 36-60”

Aster novi-belgii---------------------------------------

10A

New York Aster

™X

9-18”

Aug-Oct

4

Wood’s Blue – light lavender-blue; 15-18”

Wood’s Purple – medium purple; 15-18”

Wood’s Pink – medium pink blooms; 15-18”

Professor Anton Kippenburg- lavender blue w/ yellow center; 10-15”

Alert- crimson red w/ yellow center; 12-15”

Newton Pink- light pink w/ yellow center; 12-15”

Aster oblongifolius------------------------------------

9A

Aromatic Aster

™

18-36”

Aug-Oct

4

October Skies- lavender blue w/ yellow center; 18-24”

Raydon’s Favorite- lavender blue, very floriferous; 36-40”

Aster sagittifolius�----------------------------------

9A

Arrow-Leaved Aster

X

24-40”

Aug-Sept

4

Aster shortii�-------------------------------------------

9A

Short’s Aster

X

24-40”

Aug-Sept

4

Aster tongolensis--------------------------------------

10A

East Indies Aster

™

12-24”

May-June

5

Astilbe arendsii------------------------------------------

1A

Astilbe; False Spirea

™X

15-40”

June-Aug

4

Bridal Veil – creamy white blooms; 30”

Burgundy Red¯-bright wine red; 24”

Fanal – medium red flowers; 20”; one of earliest reds;

Flamingo – flamingo pink; 20”; airy plumes

Peach Blossom- peachy pink; 20-24”

Red Sentinel – medium, rose-red flowers; 24”

Younique Lilac- lilac blooms; 20”compact growth

Younique Carmine -light red blooms; 18” compact growth

Younique Silvery Pink- pale pink; 16-20”

Rheinland – bright rosy-pink blooms; 24”

Astilbe chinensis--------------------------------------

1A 

Chinese Astilbe

™X

12-48”

July-Aug

4

Pumila lavender-pink spreading plant; 12”

Vision in White – white plumes; large blue-green lvs; 18-20”

Purperkerze (Purple Candles) lav-purple; 40”

Vision in Red - deep red buds open to pinkish-red fuzzy flrs; 15”

Visions in Pink-bright pink; 15-18”

Visions – bright mauve-pink blooms; 15”

Delft Lace –deep salmon pink w/ silvery foliage; 20-30”

Astilbe hybrid------------------------------------------

1A

Dwarf Astilbe

™X

10-18”

June-July

4

Fireberry¯- raspberry pink; 16-18”

Sugarberry¯-  bright pink; 10-12”

Astilbe simplicifolia-----------------------------------

1A 

Astilbe; False Spirea

™X

10-22”

July

4

Sprite- shell pink flowers; 12-18”

Hennie Graafland- clear pink flowers, compact;14-16”

Astrantia major------------------------------------------

1B 

Masterwort

™X

18-26”

June-Aug

4

Star of Royals– creamy wh.w/green tips; 18-22”

Ruby Cloud – bright red purple blooms; 18-26”

Claret- wine red; 12-22”

Aubrieta cultorum------------------------------------

13A

Rock Cress

™

4-6”

Apr-June

4

Cascade Red- magenta red; 8-12”

Cascade Purple – blue purple; 8-12”