Friday, October 10, 2014

Hesperis matronalis ( Dame's Violet )
A short-lived perennial, reaching up to 4 feet, native to open forest mountains from central Europe to Siberia; south to northern Turkey to central Asia.
The toothed, ovate leaves, up to 8 inches in length, are deep green. The young leaves, stem tips and tender seedpods can be eaten as greens after being lightly boiled.
The fragrant pink ( rarely white or bright purple ) flowers, up to 1 inch wide, are borne during early summer.
Hardy zones 3 to 8 in partial shade on moist soil.

* photos taken on May 3 2012 in Columbia, MD

Tuesday, September 23, 2014

Rue

Ruta

Ruta graveolens
A woody-based perennial, reaching up to 4 x 3 feet in size, that is native to southeast Europe ( from Bulgaria south to Greece ).
The grayish foliage is aromatic. The double-pinnate leaves are composed of obovate leaflets up to 0.35 inches wide. The foliage can cause dermatitis if skin is exposed to sunlight.
If seeds are allowed to develop, the foliage will often turn yellow.
The flowers are borne during summmer.
Hardy zones 4 to 9 in full sun on dry, well drained soil. Propagation is from cuttings taken during late summer or seed sown early spring.

* photos taken on July 10 2013 in Ellicott City, MD

* photos taken on Oct 22 2013 in Towson, MD

* photo taken @ U.S. Botanical Garden, Wash., DC on Aug 25 2014

* photos taken on Sep 19 2014 in Towson, MD


'Blue Beauty'
Reaches up to 3 x 3 feet, with blue, lacy foliage.

Friday, September 5, 2014

American Umbrella-Leaf

Diphylleia cymosa
A rhizomatous, dense, clumping perennial, reaching up to 3.3 x 3 + feet in height, that is native to woodlands in the Blue Ridge Mountains of the eastern U.S. ( eastern Tennessee, southwest Virginia; south to far northern Georgia and western North Carolina ). It is related to Podophyllum. The toothed, peltate leaves, up to 22 inches wide, are deep green.
The white, bowl-shaped flowers are borne on terminal cymes mid to late spring.
They are followed by blue berries.
Hardy zones 4 to 7 in partial to full shade on just about any moist to wet, humus-rich soil. Native to mount

* photos taken by Mark A. Garland @ USDA-NRCS PLANTS Database

Tuesday, August 26, 2014

Chameleon Plant

Houttuynia cordata ( Chameleon Plant )
A very fast growing, rhizomatous perennial, reaching up to 20 ( rarely over 15 ) inches in height, that is native from Nepal to China to Japan; south to mountains of Java.
The scented, heart-shaped leaves are up to 3 inches in length. The foliage is valued both fresh and cooked in the same way as spinach in China and Korea.
The white flowers, up to 0.5 inches wide, are borne during early summer.
Hardy zones 5 to 8 in partial shade on moist soil. Cut back hard during late fall. Propagation is from division or root cuttings during autumn. Due to its invasive spread potential, it is recommended to keep this plant in a contained area.

* photos taken on Aug 15 2014 at Maryland Zoo, Baltimore, MD


'Chameleon'
Attractive foliage splashed in white, pink and red, otherwise identical to species.

* photo taken on June 1 2014 in Columbia, MD

* photo taken on Aug 24 2014 in Columbia, MD

Saturday, August 9, 2014

Mullein

Verbascum
Deer resistant.

* photo taken on June 23 2013 @ U.S. National Arboretum, Washington, DC

* photo taken @ Smithsonian Inst, Wash., DC on Aug 25 2014


Verbascum blattaria ( Moth Mullein )
A perennial, reaching up to 6 x 1.5 feet, that is native to temperate Eurasia.
The crinkled, glossy deep green leaves form a basal rosette.
The white to pale yellow flowers are borne during summer.
Hardy zones 6 to 8 in full sun on dryish, well drained soil. Propagation is from seed.

'Albiflorum'
The flowers are pure white with a purple center.

Verbascum bombyciferum
A short-lived perennial, reaching up to 4 x 3 ( rarely 6 ) feet, that is native to Turkey and Asia Minor.
The felted, ovate leaves, up to 18 inches in length, are silvery-white as are the stems. The basal leaves are evergreen.
The bright yellow flowers, up to 2 inches across, are borne during mid-summer.
Hardy zones 5 to 9 in full sun on dry, sandy, well drained soil. Propagation is from seed, division during spring or root cuttings during winter.

'Arctic Summer'
Spectacular, with golden-yellow flower plumes reaching up to 8 feet in height.

Verbascum chiaxii ( Nettle-Leaved Mullein )
A thick, clump-forming perenial, reaching up to 5 x 2 ( rarely over 3 ) feet in size, that is native to Europe.
The ovate leaves are hairy, glossy deep green.
The bright yellow flowers are borne during mid-summer.
Hardy zones 5 to 8 in full sun on alkaline, very well drained soil. Very easy to grow.

'Alba'
White flowers, otherwise identical.

Verbascum 'Helen Johnson
An evergreen perennial reaching up to 3 x 2.5 ( rarely over 2 ) feet.
The ovate leaves are downy grayish-green.
The pinkish flowers are borne on upright spikes all summer long.

Verbascum 'Jackie'
An evergreen perennial reaching up to 3 x 2.5 ( rarely over 2 ) feet.
The ovate leaves are downy grayish-green.
The pale pink ( with purple eye ) flowers are borne on upright spikes all summer long.

Verbascum nigrum ( Dark Mullein )
A perennial, reaching up to 3 x 2 feet.
The ovate leaves are deep green.
The yellow flowers are borne mid-summer into early autumn.
Hardy zones 3 to 8 in full sun on alkaline, very well drained soil.

Verbascum olympicum ( Olympic Mullein )
A short-lived perennial, reaching up to 10 x 3 feet, that is native from Greece to Turkey.
The pointed, narrow leaves are grayish-white and woolly. The stems are also woolly and grayish-white.
The bright yellow flowers are borne summer into autumn.
Hardy zones 6 to 8 in full sun. Propagation is from seed.

Verbascum phoeniceum ( Purple Mullein )
A perennial, reaching up to 6.5 x 2 feet.
The pointed leaves are mid-green.
The blooms appear during early summer lasting about 2 weeks.
Hardy zones 3b to 8

Gainsborough'
Bright yellow flowers.

;'Mont Blanc'
Silvery foliage and pure white flowers.

'Pink Domino'
Rose-pink flowers.

Verbascum 'Southern Charm'
A perennial, reaching up to 2.5 x 2 feet.
It often reblooms after deadheading.

Verbascum thapsus ( Flannel Mullein )
A short-lived perennial, reaching up to 6.5 x 1.5 feet, that is native to temperate Eurasia.
The basal leaves, up to 18 inches in length, are felted, grayish-white.
The yellow flowers are borne during mid to late summer.
Hardy zones 3 to 7. Propagation is from division or seed.

False Hellebore

Veratrum
A genus of coarse perennials arising from thick rootstocks that are native to temperate regions around the Northern Hemisphere.
They prefer full sun to partial shade on moist soils.
All parts of plant are poisonous. They are deer and rabbit resistant but can be prone to slugs. Propagation is from ripened seed or division done during autumn or early spring.

* photo taken by J.E. Schwartz @ USDA-NRCS PLANTS Database


Veratrum album ( European White Hellebore )
A rhizomatous perennial, reaching up to 6.5 feet, that is native from Europe through northern Asia.
The broad-elliptical leaves, up to 12 x 6 inches in size, are glossy bright green.
The greenish-white flowers, up to 1 inch wide, are borne on panicles, up to 2 feet in length, during early to mid-summer.
Hardy zones 3 to 6 in full sun to partial shade on moist, deep, fertile, well drained soil.

Veratrum californicum ( California False Hellebore )
A perennial, reaching up to 6 feet in height, that is native to western North America ( Washington State to western Montana; south to southern California to central New Mexico ).
The cupped leaves, up to 16 x 8 inches in size, are green. The occur along the entire length of the stems up to the flowerhead.
The greenish-white flowers are borne on large heads.
Hardy zones 5 to 8. Propagation is from seed or division.

* photo taken by Paul Fair @ USDA-NRCS PLANTS Database

* photo taken by C.A. Kutzleb @ USDA-NRCS PLANTS Database

* USDA-NRCS PLANTS Database


Veratrum nigrum ( Black False Hellebore )
A large, rhizomatous perennial, reaching up to 4 + feet, that is a widespread native to temperate Eurasia.
The very attractive broad-elliptical leaves are luxuriant mid-green.
The small, very dark brown flowers, up to 0.3 inches wide, are borne on panicles up to 3 feet in length.
Hardy zones 6 to 8 in full sun to partial shade on moist, deep, fertile, well drained soil, it is tolerant of deep shade.

Veratrum viride ( Green False Hellebore )
A perennial, reaching up to 6 x 2 feet. It eventually clumps out like Hostas. It is native to moist woodlands and swamps in western North America ( Alaska to Northwest Territories; south to northern California to Wyoming ) as well as northeastern North America ( from northeast Ohio to Quebec & Labrador; south to the Smoky Mountains ).
The ovate leaves are strongly ribbed.
The abundant, yellowish-green flowers are borne during early to mid summer.
Hardy zones 3 to 8 in partial shade on a site protected from wind. It does not enjoy extreme heat or hot humid summers.
Phamacology: All parts of this plant are poisonous.

Friday, August 8, 2014

Lizard's Tail

Saururus

Saururus cernuus
A rhizomatous perennial, reaching up to 4.5 feet, that forms extensive colonies in marshes, swamps and streambanks. It is native to North America ( eastern Kansas to Wisconsin to Ontario to Quebec to Massachusetts; south to central Texas to southern Florida ).
The pointed, heart-shaped leaves, up to 6.5 inches in length, are mid-green.
The fragrant, greenish-white flowers are borne on narrow, curved inflorescences up to 12 inches in length, during early summer to early autumn.
Hardy zones 5 to 8 in full sun to partial shade on wet soil to water up to 12 inches deep.

* photos taken on June 30 2013 @ U.S. National Arboretum, DC

* photos taken on June 1 2014 @ Maryland Horticulturalist Society garden tour, Clarksville

* photos taken on Aug 3 2014 @ National Zoo, Washington, DC


Saururus chinensis
A perennial, reaching up to 4 feet in height, that is the native counterpart of Saururus cernuus.
The cordate leaves are up to 8 x 4 inches.

Snowflake

Leucojum

* photo of unknown internet source


Leucojum aestivum ( Summer Snowflake )
A bulbous perennial, reaching up to 2 x 1.5 feet, that is native to Europe.
The linear leaves are glossy green.
The lightly-fragrant, pendulous, white, bell-shaped flowers are borne during mid-spring.
Hardy zones 3 to 8 in full sun to partial shade on moist or wet, humus-rich soil. The bulbs should be planted 4 to 6 inches deep and 6 to 8 inches apart. They are clay, drought, rabbit and deer resistant.

'Gravetye Giant'
Larger than species, reaching 2 feet in height.

Leucojum vernuum ( Spring Snowflake )
A bulbous perennial, reaching up to 1 foot in height, that is native to Europe.
The linear leaves are glossy green.
The lightly-fragrant, pendulous, white, bell-shaped flowers are borne during early spring.
Hardy zones 5 to 8 in full sun to partial shade on moist or wet, humus-rich soil. The bulbs should be planted 4 to 6 inches deep and 6 to 8 inches apart. They are rabbit and deer resistant.

Fawn Lilies

Erythronium
A genus of perennial bulbs that thrive in the shade of deciduous trees on deep, fertile, moist, well drained soil ( however they only need abundant moisture while actively growing.
They can be propagated from bulbs, offsets as well as seed which is much slower.
Over time plants may spread to form large colonies. The bulbs of most species are planted 2 to 3 inches deep and 0.5 feet apart. Some of the largers ones are planted 5 or more inches deep. The bulbs are planted during autumn. If the bulbs dry out during division or planting, they will not survive. It takes seedlings at least 3 years to bloom, however the wait is well worth it.

* photo taken by J.E. Broaddus @ USDA-NRCS PLANTS Database

Erythronium albidum ( White Fawn Lily )
A perennial, native to eastern North America ( from northwest Minnesota to Ontario & New York State; south to central Texas to Georgia ).
The leaves are mid-green with purplish mottling.
The flowers are white.

* photos taken on March 28 2010 @ U.S. National Arboretum, D.C.




Erythronium americanum ( Yellow Trout Lily )
A perennial, reaching up to 1 foot in height, that is native to rich woods and bottomlands in eastern North America ( northeast Minnesota to Newfoundland; south to Louisiana to South Carolina ).
The foliage is bright green with deep purple mottling.
The yellow flowers are borne early to mid spring.

Erythronium californicum ( California Fawn Lily )
A perennial, reaching up to 14 x 6 inches in size, that is native to northern California.
The elliptical leaves are glossy mid-green with deep purplish-brown markings.
The white flowers are borne up to 3 per stem.
Hardy zones 5 ot 8 in partial shade on humus-rich, acidic, well drained soil.

Erythronium caucasicum
A perennial, reaching up to 6 inches in height, that is native to the western Caucasus and northern Iran. It is great for the woodland rock garden.
The ovate leaves, up to 2.4 x 1.3 inches in size, are blue-green and spotted.
The solitary, white flowers are borne early to mid-spring.
Hardy zones 5 to 8 ( 4 on protected sites ) in partial to full shade on just about any well drained soil. Transplant during late summer.

Erythronium citrinum
A perennial, reaching up to 1 foot in height, bearing creamy-white ( throated pale yellow ) flowers up to 1.5 inches wide.
Hardy zones 6 to 8.

Erythronium dens-canis ( European Dogtooth Violet )
A perennial, reaching up to 14 x 4 ( rarely over 8 ) inches in size, that is native to southern and southeast Europe.
The elliptical leaves are mid-green or blue-green with bronze mottling.
The flowers, up to 2 inches wide, are pink ( sometimes white or purple ).
Hardy zones 3 to 8 in partial shade or deciduous shade on humus-rich, acidic, well drained soil.

Erythronium grandiflorum ( Yellow Avalanche Lily )
A perennial, reaching up to 2 feet in height, that is native to the Rocky Mountains in western North America ( from British Columbia to Alberta; south to northern California to northern New Mexico ).
The elliptical leaves are glossy mid-green with no markings.
The flowers are intense bright yellow to golden-yellow ( with red anthers ). The flowers are borne on clusters.
Hardy zones 3 to 8 in partial shade on humus-rich, acidic, well drained soil.

Erythronium helenae ( Pacific Fawn Lily )
A perennial, reaching up to 14 x 6 inches in size, that is native to northwestern California. It is related to E. californicum.
The elliptical leaves are bright green.
The creamy-white ( centered yellow ) flowers are borne during mid-spring.
Hardy zones 5 to 8 in partial shade on humus-rich, acidic, well drained soil.

Erythronium japonicum
A perennial, reaching only 6 inches in height, that is native to Sakhaklin & Kuril Islands, Korea and Japan.
It is very closely related and similar to Erythronium dens-canis.
Hardy zones 3 to 8.

Erythronium oregonum ( Giant Fawn Lily )
Reaches up to 1 foot and is native to the Pacific Northwest from British Columbia to southwest Oregon.
The white flowers are borne during early spring.
Hardy zones 5 to 8 in partial to full shade.

Erythronium 'Pagoda'
The hybrid between E. revolutum & E. tuilumnense, forming a vigorous, tuberous perennial, reaching up to 14 inches in height.
The broad-elliptical foliage is luxuriant mid-green with bronze mottling.
The intense bright yellow are borne up to 10 per stem.
Hardy zones 5 to 9 in deciduous shade on a moist, humus-rich, acidic, well drained soil. Clumps can be divided after flowering is complete.

Erythronium revolutum ( Coast Fawn Lily )
A perennial, reaching up to 1.3 foot, and is native to the Pacific Northwest from Vancouver Island to northern California.
The bright pink ( sometimes white or lavender ) flowers, up to 1.5 inches wide, are borne during early spring.
hardy zones 3 to 8 in partial to full shade.

Erythronium sibericum
A perennial, reaching up to 1 foot that is native to the Altay and western Sayan in Siberia; south to eastern Kazakstan. It eventually spreads to form large patches.
The elliptical leaves, up to 8 x 3 inches, have reddish spots.
The pale lilac ( with yellow anthers ) flowers are borne during mid-spring. All white flowering forms exist.
Hardy zones 3 to 6 on well drained soil.

Erythronium tuolumnense ( Tuolumne Fawn Lily )
A vigorous perennial, reaching up to 14 inches in height, that is native to lower elevations of the Sierra Nevada mountains in California.
The elliptical leaves, up to 12 inches in length, are bright green.
The bright yellow flowers, up to 1.3 inches wide, are borne during spring. Up to 7 flowers may be borne per stem.
Hardy zones 3 to 8 in partial to full shade on humus-rich, acidic, well drained soil. Propagation is from division every 3 to 4 years.

'Pagoda'
A perennial, reaching up to 1 foot, that is native to lower elevations of the Sierra Nevada mountains in California.
The pale yellow flowers are borne during spring.
Hardy zones 4 to 8 in partial to full shade. Propagation is from division every 3 to 4 years.

Everlasting Pea

Lathyrus
Lathyrus aureus
A perennial, reaching up to 2 feet in height, that is native to woodlands from Romania to the Caucasus; south to northern Turkey.
The pinnate leaves are composed of 3 to 6 pairs of leaflets.
The yellow flowers, up to 0.8 inches long, later fade to orange.

Lathytus heterophyllus
A climber, reaching up to 4 feet, that is native to central and southern Europe.
The purplish-pink flowers are borne during mid-summer.

Lathyrus latifolius ( Everlasting Pea )
A vigorous, perennial vine, reaching up to 10 feet in height, that is native to Eurasia ( from France to Poland to southern Russia; south to Portugal to the Caucasus ). It is commonly found naturalized in the British Isles and North America. This herbaceous vine originates from a thick root stock.
The leaves, up to 6 x 2 inches in size, are composed of ovate leaflets. The foliage is dull green.
The flowers, up to 0.7 inches across, are borne early summer to early autumn. The flowers can be white, pink or purple.
Excellent external link:
http://www.efloras.org/florataxon.aspx?flora_id=120&taxon_id=242442441

* photos taken on Aug 1 2013 in Goderich, Ontario

* photos taken on Aug 4 2013 in Bayfield, Ontario


'Lancer'
text coming soon

* Photo courtesy of USDA NRCS.


Lathyrus nigra ( Black Pea )
Reaches up to 3 feet in height.
The foliage turns to black during autumn.
The small purplish ( later fading to blue ) flowers are borne on long sprays.

Lathyrus rotundifolius
A perennial, reaching up to 6.5 x 1.5 feet, that is native to pine forests and meadows from the Caucasus; south to northern Turkey to northern Iran.
The leaves are composed of oval to rounded leaflets that are borne in pairs. The foliage is deep green.
The rosy-pink flowers, up to 1 inch across, are borne on clusters of up to 10 all summer long.
Hardy zones 6 to 8 in full sun to partial shade.

Lathyrus venetus
A shrubby perennial, reaching up to 2 feet, that is native to both grasslands and open woodlands from Italy to central Russia; south to northern Turkey.
The pinnate foliage is glossy bright green. The ovate leaves, up to 2.8 inches in length, are borne in 2 to 4 pairs.
The reddish-purple ( veined darker ) flowers, up to 0.6 inches long, are borne on dense racemes during late spring into early summer.
Hardy zones 6 to 9 in full sun to partial shade on moist, deep, fertile, well drained soil. It is very tolerant of alkaline soil. Propagation is from seed soaked in water for 24 hours before sowing during spring.

Lathyrus vernus ( Spring Vetchling )
A deep-rooted, upright, bushy perennial, reaching up to 18 x 20 inches, that is a widespread Eurasian native ( from France to eastern Siberia; south to the Alps to northern Turkey to the Caucasus ).
The pinnate foliage is glossy bright green. The ovate leaves, up to 2.8 inches in length, are borne in 2 to 3 pairs.
The rosy-purple ( white, pink or blue in some cultivars ) flowers, up to 0.7 x 0.5 inches across, are borne during mid to late spring. Hardy zones 3b to 6 in full sun to partial shade on moist, deep, fertile, well drained soil. It is very tolerant of alkaline soil. Propagation is from seed soaked in water for 24 hours before sowing during spring.



'Albus'
Flowers are white.

'Caeruleus'
Flowers are blue.

'Rosea'
Flowers are pink.