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Perennials

Type Botanical Name Common Name Description Height Light Req. Zone Add to My List
Perennial ACANTHUS spinosus Bear's Breeches

Spikes of white flowers backed with dark red bracts in the summer.  Impressive, deeply cut, dark green, thistle-like foliage.  Makes a great architectural accent.  Needs excellent drainage in the winter.

3-4 feet Sun 5
Perennial ACHILLEA ‘Little Moonshine’ Yarrow

A smaller version of A. ‘Moonshine’ with the same lemon yellow flower umbels and feathery gray-green foliage.

10-12 inches Sun 3
Perennial ACHILLEA millefolium ‘New Vintage Violet’ Yarrow

Large clusters of magenta-violet flowers are slower to fade than other yarrows.  It blooms through the summer over ferny green foliage on a compact plant.

12-14 inches Sun 3
Perennial ACHILLEA ‘Moon Dust’ Yarrow

Lots of soft yellow flowers over gray-green foliage through the summer.  More compact than Achillea ‘Moonshine’.

12-14 inches Sun 5
Perennial ACHILLEA ‘Moonshine’ Yarrow

Sulphur-yellow flowers June through August. Silvery foliage.

18-20 inches Sun 2
Perennial ACHILLEA ‘Saucy Seduction’ Yarrow

Long-blooming yellow-centered rosy-pink blooms on sturdy, upright plants. Best grown in lean soils.

18-20 inches Sun 4
Perennial ACHILLEA ‘Strawberry Seduction’ Yarrow

Long-blooming yellow-centered red blooms on a sturdy, upright plant. Best grown in lean soils.

16-18 inches Sun 4
Perennial ACONITUM carmichaelii ‘Arendsii’ Monkshood

Dark violet spikes in Sept-Oct. Excellent glossy dark-green foliage all season.

48-54 inches Sun/Part Shade 3
Perennial ACONITUM fischeri Monkshood

Strong stems that don’t require staking. Lovely late summer hooded blue-violet flower spikes.

18-24 inches Sun/Part Shade 4
Perennial ACONITUM napellus Monkshood

Violet hooded flowers in dense spikes bloom in June.

2-3 feet Sun/Part Shade 3
Perennial ACTAEA pachypoda Baneberry

White flowers followed in spring by distinctive white fruit held on red pedicels. This native plant is poisonous.

12-24 inches Part Shade 3
Perennial AGASTACHE ‘Blue Boa’ Anise Hyssop

Dense spikes of deep violet-blue flowers over dark green foliage.  Blooms through the summer and is a pollinator magnet.

28-30 inches Sun 5
Perennial AGASTACHE ‘Blue Fortune’ Anise Hyssop

Long-lasting lavender-blue flower spikes all summer. Foliage is fragrant.  Great pollinator plant.  Not long-lived, but reseeds reliably.

2-3 feet Sun 4
Perennial AJUGA reptans ‘Alba’ Bugleweed

Small spikes of clean white flowers in early spring.

4-6 inches Sun/Part Shade 4
Perennial AJUGA reptans ‘Burgundy Glow’ Bugleweed

Lovely tri-color foliage is burgundy, white and green. Flowers blue.

4-6 inches Sun/Part Shade 4
Perennial AJUGA reptans ‘Metallica Crispa’ Bugleweed

Distinctly curled leaves of dark bronze. Unlike other Ajuga, it’s not a rapid spreader.

4-6 inches Sun/Part Shade 4
Perennial AJUGA reptans ‘Pink Lightning’ Bugleweed

Nicely variegated pale green leaves edged in cream. Pretty lavender-pink spring flowers in spring

4-6 inches Sun/Part Shade 4
Perennial ALCEA rosea ‘Blacknight’ Hollyhock

New introduction in the ‘Spotlight’ series. Black-purple single flowers; blooms first year and truly perennial (unlike the old-fashioned biennial varieties). Cut to ground after bloom.

5-6 feet Sun 3
Perennial ALCEA rosea ‘Halo Cerise’ Hollyhock

This variety is covered with large, single, deep cerise pink flowers with a rich purple halo.  Blooms from midsummer to fall.

5-6 feet Sun 4
Perennial ALCEA rosea ‘Mars Magic’ Hollyhock

New introduction in the ‘Spotlight’ series. Bright red single flowers; blooms first year and perennial (unlike the old-fashioned biennial varieties). Cut to ground after bloom.

5-6 feet Sun 3
Perennial ALCEA rosea ‘Radiant Rose’ Hollyhock

Rose-pink single mallow flowers on tall, sturdy stems.  This selection is from the perennial Spotlight series.

5-6 feet Sun 3
Perennial ALCEA rugosa Russian Hollyhock

Single lemon yellow flowers with rust-resistant wrinkled foliage.

6-7 feet Sun 4
Perennial ALCHEMILLA alpina Lady's Mantle

A dwarf form with sprays of chartreuse flowers.

6-8 inches Sun/Part Shade 3
Perennial ALCHEMILLA sericata ‘Gold Strike’ Lady’s Mantle

Low tufts of grey-green scalloped foliage, with umbels of bright gold flowers late spring to early summer.

12-14 inches Sun/Part Shade 3
Perennial ALLIUM aflatunense ‘Purple Sensation’ Ornamental Onion

Lilac-purple 4″ spherical flower heads in May. This plant always attracts lots of attention in the garden. Goes dormant after bloom. Excellent cut.

2-3 feet Sun 3
Perennial ALLIUM christophii Ornamental Onion

Oversized 10”-12″ balls of light purple blooms in summer.

22-24 inches Sun 4
Perennial ALLIUM karataviense Turkestan Onion

Golf ball sized lavender globes over broad blue-green foliage in early summer. Goes dormant after bloom.

8-10 inches Sun 5
Perennial ALLIUM maximowiczii ‘Alba’ Dwarf Ornamental Onion

Lots of small white umbels in early summer over grassy foliage that holds up through the season.

6-8 inches Sun 4
Perennial ALLIUM ‘Medusa’ Ornamental Onion

Profuse 2” lavender-purple globes in midsummer over a mound of twisted gray-green foliage.  Great pollinator plant.

20-24 inches Sun 4
Perennial ALLIUM ‘Millenium’ Ornamental Onion

Profuse 2” rosy purple umbels on strong stems in mid to late summer.

16-20 inches Sun 4
Perennial ALLIUM moly ‘Jeannine’ Golden Garlic

An onion with loose umbels of bright yellow flowers in summer.  Stalks appear over flat-bladed, tulip-like foliage.

12-14 inches Sun 4
Perennial ALLIUM senescens ‘Glaucum’ Ornamental Onion

Flat corkscrew shoots form a distinctive clump. Pink flowers in late summer.

6-8 inches Sun 4
Perennial ALLIUM sphaerocephalon Drumstick Allium

Egg-shaped flower heads start out green and change to purple. Self-sowing.

24-30 inches Sun 3
Perennial ALLIUM thunbergii ‘Ozawa’ Ornamental Onion

Rock garden plant with masses of deep pink umbels in autumn. Great late season bloom.

8-10 inches Sun 4
Perennial ALLIUM tuberosum Garlic Chives

Profusion of excellent late summer white blooms.  Nice combined with sedums, and tasty too!  Seedy if not deadheaded.

12-18 inches Sun 4
Perennial AMSONIA ‘Blue Ice’ Bluestar

A new, long-blooming form with dark blue flowers. Habit is dense and mounding.

14-16 inches Sun/Part Shade 4
Perennial AMSONIA ciliata ‘Georgia Pancake’ Bluestar

A new groundcover variety of Amsonia with fine-textured chartreuse foliage and small blue flowers in late spring.  Like other bluestars, foliage turns gold in the fall.  It will spread to 2 feet.

4-6 inches Sun/Part Shade 5
Perennial AMSONIA ciliata ‘Hubrichtii’ Bluestar

Thread-like leaves and very pale blue flowers in June-July. Awesome yellow fall color for weeks.

22-24 inches Sun/Part Shade 4
Perennial AMSONIA illustris Shining Bluestar

Pyramidal clusters of small light blue flowers in spring.  Yellow fall color.  Similar to A. tabernaemontana, but foliage is thicker and shinier.

2-3 feet Sun/Part Shade 5
Perennial AMSONIA montana Bluestar

Pale blue flowers in June. Broader foliage is soft yellow in fall. Forms a full shrub-like clump.

22-24 inches Sun/Part Shade 4
Perennial AMSONIA tabernaemontana ‘Storm Cloud’ Bluestar

In this cultivar the stems emerge near black in the spring!  Typical blue flowers cover the plant in early summer.  Forms a wide mound.

24-30 inches Sun/Part Shade 5
Perennial ANACYCLUS depressus Atlas Mountain Daisy

A mini-daisy for the rock garden with white flowers in summer over ferny gray foliage.

4-6 inches Sun/Part Shade 4
Perennial ANEMONE ‘Dreaming Swan’ Hybrid Anemone

Large semi-double white flowers have petals backed with lilac.  Starts  blooming as early as late June and continues through the fall.  Forms a non-spreading clump of glossy green foliage.

28-30 inches Sun/Part Shade 5
Perennial ANEMONE multifida ‘Annabella Deep Rose’ Windflower

A hardy Northeast native with deep rose, spring flowers over ferny green foliage. 

10-12 inches Sun/Part Shade 4
Perennial ANEMONE ranunculoides ‘Flore Pleno’ Wood Anemone

Double yellow blooms in early spring. Summer dormant.

6-8 inches Part Shade/Shade 4
Perennial ANEMONE tomentosa ‘Robustissima’ Grapeleaf Anemone

Delicate pink flowers in September. Spreads. Hardier than other tall, fall anemones.

30-36 inches Sun/Part Shade 4
Perennial ANEMONE x hybrida ‘Honorine Jobert’ Japanese Anemone

Clear white flowers atop 3’-4’ stems in fall.

3-4 feet Sun/Part Shade 5
Perennial ANEMONE x hybrida ‘Loreley’ Japanese Anemone

Lovely, pale pink semi-double blooms on sturdy stems in late summer.

36-42 inches Sun/Part Shade 5
Perennial ANEMONE x hybrida ‘Pamina’ Japanese Anemone

Large double purple-pink flowers starting in late summer.

30-36 inches Sun/Part Shade 5
Perennial ANEMONELLA thalictroides Rue Anemone

A woodland plant with white or pink flowers over fine foliage in early spring. It will go dormant in the summer. 

6-10 inches Part Shade 4