Plant Reference Guide

Perennials I

 
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Reference Guide Contents

Perennials A1 |A2|B|C|D|E|F|G|H|Hosta|I|J|K|L|M|N|O|P|Q|R|S|T|U-V |W-Z

 Ferns | Grasses | Roses | Trees & Shrubs | Vines  | Edibles  | Annuals

Click on small images for larger views of plants.

 

 

Iberis

 

Incarvillea

 

Incarvillea 'Snowtop'

 

Iris chrysographes

 

Iris cristata

 

Iris ensata 'Variegata'

 

German Iris 'Before the Storm'

 

Repeat Blooming German Iris 'Immortality'

 

Iris pallida 'Albo-variegata'

 

Iris pseudacorus 'Variegata'

 

Iris siberica 'Butter and Sugar'

 

Iris siberica 'Caesar's Brother'

 

Iris siberica 'Silver Edge'

 

Isotoma 'Blue'

 

 

 

 

 

IBERIS, Candytuft.  Sun; blooms in spring; evergreen leaves; excellent in the rock garden, for edging, in the perennial border or as a groundcover.

aurosica ‘Sweetheart’ Dense cushions of dark green foliage are topped by masses of pink blossoms in late Spring. Flowers mature from pink to a brilliant lilac. Makes a great groundcover. Height 6-8” Deer resistant.

sempervirens  ‘Snowflake.’   10"; white flowers.

s. ‘Tahoe.’  A compact, well branched, uniform hybrid that reportedly blooms about 2 weeks earlier than ‘Snowflake’.  Clusters of small, white flowers blanket the wide mound of narrow, evergreen leaves. Use as edging or groundcover.  Grows 8 to 10 inches high, and 15 wide.

‘Daglori Gem.’  From Turkey via Czeck collector, this robust, yet beautiful black-green slightly hairy leafed plant spreads 18-24” in 2 years.  Abundant clusters of white aging to light lavender flowers appear in spring and again in fall after establishment.  Grow in dry, well-drained sunny site.

 

INCARVILLEA, Hardy Gloxinia.  Sun/part shade; blooms in spring.

delavayi.  12"; rose-purple trumpet-shaped flowers with yellow tubes.

d. ‘Bees Pink.’  Extra large, soft-pink flowers with yellow throats.  18”.

d. ‘Snowtop.’  White form of above.

 

INULA ensifolia, Sunray Flower.  Golden yellow daisy-like flowers in summer on compact 16” plants.  Blooms for a long time in summer.  Sun. 

 

IPOMOPSIS, Scarlet Rocket, Gilia: sun; biennial that reseeds, U.S. native 

aggregate.  showy spikes to 6’ of intense red flowers in summer.

 

IRIS:  sun/partial shade; bloom times vary

 

chrysographes ‘Black Form,’ Black Iris or Goldvein Iris.   Very dark purple-maroon flowers with narrow golden yellow veins appear in mid spring and lasts till mid summer.  Wonderfully fragrant.  Prefers partial shade and large amounts of water during growth and flowering period.  Does not like to sit in water.  A site to behold!  20”.

 

cristata, Crested Iris.  6";  light blue flowers in spring; good ground cover; native; prefers partial shade.

‘Powder Blue Giant.’  Flowers are much larger than the species.

 

ensata, Japanese Iris.  Huge flouncy crepe-like flowers.  Flowers have large semi-flaring falls, and standards which are either short and upright (single flowers), or very large open, hanging over the falls as a second layer (double flowers).  The resulting flowers have a flat open form.  Signals are marked as small, simple yellow blotches.  Ideally suited for the side of a pond, but will do well in any moist, humus-rich soil.  Highly valued for their large 6” flowers in early summer and tall slender 1” wide bright green leaves.  Grow in full sun or light shade, and moisture retentive soil.  Plant crowns 2-3” below the soil.

‘August Emperor.’  7 1/2” double purple flowers with white and blue edges around the yellow signals.  Upright purple-edged white standards.

‘Caprician Butterfly.’  This superb award winner produces massive (8") double flowers, formed from flowing white petals etched with purple-blue veins and set off with small, curling, purple-blue styles and yellow signals.

‘Freckled Geisha.’  Snow white petals are edged in lavender and sprinkled with lavender spots.  The 6 inch flowers have golden yellow signals. Blooms June through July and will reach 30 to 35 inches in height.

‘Gracieuse.’  Very elegant iris with a soft coloring of a soft lilac edge on shimmering white crepe paper-like blooms.  Grows to 32 inches tall.

‘Lady in Waiting’ Near white flowers with brushed lavender edges. Lightly ruffled form. Height 36”

‘Stippled Ripples.’  White flowers with solid purple edges and lots of purple blotches concentrated near the edges. Height 40”.

‘Yamato-Hime.’  Stunning double flowers with broad white petals edged in rich purple and occasional purple spots.  32”.

‘Variegata.’  deep purple flowers with a yellow streak down the center of the falls.  The attractive cream to white variegation in the grass-like foliage becomes more pronounced as the season progresses.  Splendid for garden, bog garden, or along a pool edge.

 

foetidissima, Scarlet-Seeded Iris.  1-2'; shade; yellow-lilac flower in early summer and orange-red seeds in fall.

 

German Iris.  Prefers slightly alkaline soil, drought resistant, plant shallow.  Easy to grow, grow dry.  Full sun to partial shade.

‘Baltic Star’ Striking white centers that transition to glowing violet to near black at the edges. A true showstopper! Height 34:

‘Before the Storm’.’ This medal winner will add drama to your garden.  Jet black with a slight sweet fragrance.  Considered to be one of the best black irises available.  Blooms mid to late June.  Reaches 37 inches tall and wide with an excellent growth habit.  Easy to grow in full sun in well drained soil.  Deer Resistant.

‘Fall Fiesta.’  Unusually colored Iris.  Amber-tan and creamy white flowers.  Blooms in early summer.  Height 36”.

‘Rare Treat.’  Pure white self with perfectly even, 1/4 inch cornflower blue stitched edges on both the standards and the falls. Flowers bloom in late spring.  Reaches 34 inches tall and 18 inches wild.  Easy to grow in full sun in well drained soil.  Deer resistant.

 

Repeat Blooming German Iris.   These incredible Iris bloom in spring then again August through October.  These Iris prefer average, near neutral soil and full sun.

‘Autumn Circus.’  A good rebloomer with white petals suffused with purple.  40”.

‘Best Bet.’  Pale blue standards and deep blue falls appear in early summer and fall.  36”

‘Breakers.’  Late spring and early fall medium blue flowers with blue beards.  36”.

‘Champagne Elegance.’  Exquisite near-white standards and a blend of buff, apricot and peach falls, prolific bloomer, 8-10 flowers per stem, rebloomer, blooms late spring and late summer. 

‘City Lights.’  Violet-blue standards and falls with white in the center are set off by soft yellow beards.  Blooms in spring then again in late summer and fall, all the way to frost.  36”.

‘Dorcas Lives Again.’ Light lavender flowers with a light yellow beard. RE-BLOOMER!! Height 36”.

‘Immortality.’  29”; pure white self with light lemon yellow beards; reblooms in summer and fall; award winner; incredible!

‘Mother Earth.’  Large ruffled flowers with light lavender blend standards and lavender falls bloom early then rebloom in summer.  Very fragrant.  30-40".

‘Pagan Dance.’  Deep rich violet flowers with a velvety black spot bloom early spring then again in fall! Very unique. Height 30”.

‘Painted Cloud’.  A reblooming satiny pink iris that is also a terrific grower.  Lusciously ruffled, rich pink standards rise above the lighter pink falls with gold beards.  Blooms first in spring, followed by a rebloom in late summer and fall.  38”.

‘Spin Off.’  Elegant unique bicolor with rose and magenta repeating flowers.  30-40”.

‘Summer Olympics.’  This champion is loaded with bi-tone flowers in spring, then again in late summer and fall.  Luscious blossoms are made up of cheery yellow standards with ruffled white falls edged in canary yellow. 

‘Superstition.’  Darkest Iris to day.  Dark black blossoms in early summer.  38”.

‘Tennison Ridge.’  Very ruffled flowers with berry red standards with white falls speckled and edged in berry red.

‘Total Recall.’  Wide, crystalline white falls bordered with a bright lemon trim.  Near-white falls bordered with a bright lemon trim.  Near white standards flushed lemon up the midribs.  Yellow beards.  In addition to the long season of spring bloom.  Has some of the best bud branching on rebloom.  34”.

 

louisiana, Louisiana Iris.  Tall clumping Iris with long leaves for moist soils or wetlands.  Flowers have flatter appearance.  Deer resistant.  Attractive to hummingbirds.  Can grow in moist soil or in water up to 6” deep.  Can grow in ponds but need to be well nourished.

‘Anne Chowning.’  Large deep red flowers with a yellow throat, best red color in Iris.  23-36”.

‘Bold Pretener.’  Rich red and pink petals with yellow-orange signals.  24”.

 

pallida ‘Albo-variegata,’  Variegated Sweet Iris:  striking blue green leaves with white and cream streaking.  Bluish-purple flowers in early summer.   2-3’ tall plant makes a stunning focal point.

pallida ‘Argentea-variegata.’  Silvery white leaves with green stripes make an excellent accent in the garden.  Lilac-blue fragrant flowers.  24”.

 

pseudacorus, Yellow Flag Iris.  5'; yellow flowers; excellent poolside plant.  Can grow in moist soil or in water up to 12” deep.

p. ‘Crème de la Crème.’  Cream-white flowers with purple veins over a cream background at the base of the petals. Height 36”.

 p. ‘Holden’s Child.’  Red purple flowers with white edged yellow signals appear on multi-branched stalks.  Striking, lush sword-like foliage looks good all season and makes a great backdrop for other plants.  Grows 28”.  Award winner.

p. ‘Variegata.’  24”.  Young leaves are yellow and cream striped; yellow flowers in early summer; striking!  Can grow in moist soil or in water up to 6” deep.

 

pumilia Repeat Flowering Dwarf German Iris.  Sun to part shade.

‘Baby Blessed.’  Adorable blossoms of light yellow and white  appear in spring and again in fall.  10”.

‘What Again,’ As its name says this dwarf beauty reblooms, light lavender-blue standards with apricot-yellow falls, accented with icy blue beards.  These small compact plants bloom very early spring, earlier than tall bearded types.  10-12”.

 

setosa ssp. canadensis, Canadian Iris.  This dwarf iris has beautiful lavender flowers accentuated with dark veins. Blooms in summer. Great for a wet area. Height 12-15”. spread 12”.

 

shrevei, Blue Flag Iris, Wild Iris.  Native Iris that grows well in  wet soils, but also enjoys a good garden soil with adequate moisture. Perfect for planting along pond edges or other wet areas.  It also can be grown in ponds and thrives in water up to a foot deep.  Deep blue flowers appear in mid-summer on 2-3’ stems.  Full sun to light shade.

 

siberica, Siberian Iris.  very garden worthy plants with rich green, reed-like foliage topped in late spring and early summer by colorful flowers.  Medium to broad, pendent or semi-flaring falls, and medium to long, upright standards.  Signals on blue and pink flowers often consist of showy, intricate white and yellow markings.  Perform best with slightly moist and acidic soil, yet tolerate drought once established.  They are long-lived, pest resistant and require little maintenance.  The flowers and foliage and excellent cut.  The strap like leaves make a great background for other plant.  They prefer full sun to partial shade.

‘Aqua Whispers.’  Gorgeous rainbow blossoms of lavender pink with rose blush in throat, pale pink standards and pearl white styles with aqua midrib.

‘Butter and Sugar.’  24-30”; bright butter yellow falls with white standard.  Winner of the Morgan-Wood Medal, the highest award received by Siberian Iris.

‘Ceasar's Bother.’  36"; dark velvety purple flower in late May; excellent cut flower.  Designated a Missouri Botanical Garden ‘Plant of Merit’ for it’s outstanding qualities.

‘Caesar’s Brother’ Dark velvety-purple flowers. Height 32”.

‘Contrast in Styles.’  Mid-wine standards, light milky blue styles, bright mid-wine red falls.  Height 30”.

‘Double Standard’ Light violet flowers with yellow inside. Ruffled. Height 30”

Clifford’s Stingray’ Feathery white leaves surrounded by heavy green edging. Holds up well in full sun, giving it a lot of versatility through the garden. Lavender blooms are clustered at the top instead of trailing down the scape like other Hostas. Height 12-18”

‘Little Twinkle Star.’ 

‘Moon Silk’ Beautiful bi-color petals of soft yellow and creamy white with lemon-yellow signals. Blooms late spring. Height 28”

‘White Swirl.’  Gleaming white flowers with yellow throat.  Excellent variety.  30”.

‘Welcome Return.’  REBLOOMS!  This iris offers a second showing of its velvety deep purple-blue flowers.  24”.

 

spuria ‘Fontanelle.’  Found years ago at an old farmstead, an unsurpassed neat garden plant with elegant large flowers of violet blue, whose lavender rose falls each bear a bright yellow spot.  Flowers in early June.  Wonderful sword-like foliage to 3 1/2’. 

 

versicolor.  Wonderful native Iris with slate blue flowers with some yellow blotching.  Narrow blades are great around pools.  Clump-forming habit.  Shade tolerant.

‘Gerald Darby’ Tall cultivar with large, purple-blue flowers. New foliage is dark purple fading to green by summer. Height 36”

 

virginica ‘Pink Butterfly.’  Evergreen cultivar of US Native.  Pink-violet flowers set off with white styles.  An unusual color for the species.

 

ISOTOMA fluviatilis, Star Creeper, Fairy Footsteps.  Starry flowers bloom spring to frost on low growing mats of foliage.  Excellent between stones, roses, around ponds and decks.  Great as a lawn substitute too.  Very easy to grow.  Sun to part shade.

‘Blue.’  Starry blue flowers.

‘White.’  Starry white flowers.

 

Perennial Common Name Cross Reference Guide