Monday, February 16, 2015

Neillia

Neillia
A genus of 10 species of deciduous shrubs that are native to Asia from the eastern Himalayan mountains south into the Malay Peninsula. They are somewhat similar to Physocarpus in appearance and hold huge potential for landscape use.
These Spirea relatives have foliage which turns to yellow during autumn and zig-zag twigs. The foliage tends to emerge early during spring.
They thrive in full sun to partial shade on just about any well drained soil. They are not prone to insect pests or disease. The only pruning that is required is to cut out some of the older stems that no longer have vigor at the base. This type of pruning is similar to which is done to Hydrangea macrophylla and it's cultivars. On Neillia's it is typically done immediately after blooming. Propagation is from cuttings taken during summer, seed or by transplanting rooted suckers during autumn.

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


Neillia affinis
A suckering, dense, gracefully arching deciduous shrub, reaching a maximum size of 8 x 6 feet, that is native to western China.
The toothed or lightly lobed, finely-tapered, ovate leaves are up to 4 x 2 inches in size. The foliage is bronzr at first, turning to glossy mid-green. The leaves often turn to deep red during autumn.
Up to 10 deep pink flowers are borne on racemes, up to 3 inches in length, during late spring.
Hardy zones 5 to 9.

Neillia sinensis ( Chinese Neillia )
An arching deciduous shrub, reaching a maximum size of 13 x 14 ( rarely over 6 x 8 ) feet, that is native to central China. This beautiful, hardy shrub deserves much wider use in North America.
The lobed and toothed, finely-tapered, ovate leaves are up to 5 x 2.5 inches in size. The foliage is purplish-bronze at first, turning to deep green. The leaves are alternately arranged.
The pink, bell-shaped flowers, up to 0.3 inches wide, are borne on racemes up to 3.5 inches in length, during late spring.
The brown bark is smooth on younger stems, exfoliated on older stems.
Hardy zones 4 to 7.

Neillia tibetica ( Tibetan Neillia )
A fast growing, arching, large, deciduous shrub, reaching a maximum size of 10 x 13 feet, that is native to western China.
The deeply-veined, toothed, ovate leaves are up to 4 x 2.5 inches in size. The foliage is downy below.
The foliage is purplish-bronze at first.
The bright pink, bell-shaped flowers, up to 0.2 inches wide, are borne on slender racemes, up to 6 inches in length, over a long season during early summer. Up to 60 flowers may be borne on a single raceme.
The brown bark is smooth on younger stems, exfoliated on older stems.
Hardy zones 5 to 10.

Friday, January 23, 2015

Lion's Tail

Leonotis leonurus
A massive, fast growing, shrubby perennial, reaching up to 9 x 6 feet, that is native to South Africa.
The narrow leaves, up to 4 inches in length, are downy, mid-green.
The bright orange flowers, up to 2 inches long, are borne in whorls along the stems during autumn.
Hardy zones 9 to 10 ( tolerating 14 F with deep winter mulch ) in full sun on fertile, well drained soil. Propagation is from cutting or seed sown during spring.

* photos taken on Oct 22 2013 in Towson, MD

* photos taken on Oct 21 2014 @ Smithsonian Inst., Washington, DC


'Albiflora'
Also called 'Snow Tiger'. White flowers, otherwise identical.

Friday, January 9, 2015

Spring Beauty

Claytonia virginica
Reaches up to 6 inches, and is native to rich woods and bottomlands in eastern North America ( from Minnesota to Nova Scotia; south to northeast Texas to central Georgia ).
The fleshy, linear leaves, up to 5.5 x 0.8 inches in size, are bright green.
The pink flowers, up to 0.8 inches wide, are borne during spring.
Hardy zones 3 to 8, requires summer shade even though dormant. It prefers light, humus-rich, well drained soil.

* photos taken by Jennifer Anderson @ USDA-NRCS PLANTS Database

* photo taken by Clarence A. Rechenthin @ USDA-NRCS PLANTS Database

Georgia Calamint

Clinopodium georgianum
An upright, semi-evergreen shrubby perennial, reaching a maximum size of 2 x 5 feet, that is native to the southeastern U.S. ( from Louisiana to central Alabama to North Carolina; south to far northern Florida ). Originally somewhat common on sandy longleaf pine flatlands, it has been ravaged by habitat loss. Currently endangered in North Carolina and Florida.
The aromatic, rounded leaves are bright green.
The very abundant, bright pink flowers are borne late summer into early autumn.
Hardy zones 6 to 9 in full sun on sandy, well drained soil. Drought tolerant and deer resistant. Cut back hard after flowering.

* photo taken on Oct 23 2014 @ U.S. Botanic Garden, Wash., DC

Corn Lily

Clintonia

Clintonia andrewsiana
A clumping perennial, reaching up to 20 inches in height, that is native to moist coniferous forests from southwest Oregon to central California.
The leaves, up to 10 x 5 inches in size,
The deep red flowers are borne during late spring.
They are followed by bluish-black berries up to 0.5 inches long.
Hardy zones 7b to 9 in partial shade on moist, humus-rich soil. It thrives in maritime climates.

Clintonia borealis ( Corn Lily )
A rhizomatous perennial, reaching up to 16 inches in height, that is native to cool, moist forests of northeastern North America ( from Manitoba to Newfoundland; south to Minnesota to northern Indiana to North Carolina...not on the Atlantic Coastal Plain south of New York City ).
The 2 to 5 smooth-edged, elliptical or oblong leaves, up to 15 x 5.5 ( rarely over 12 x 3 ) inches in size, are glossy deep green.
The hanging greenish-yellow flowers, up to 0.6 inches long, are borne 3 to 8 atop an erect stem during late spring.
They are followed by rounded, bright blue berries up to 0.4 inches wide.
Hardy zones 4 to 7 in partial to full shade on light, humus-rich soil.

Clintonia umbellulata ( Speckled Wood-Lily )
A rhizomatous, dense, clumping perennial, reaching up to 16 inches in height, that is native to moist forest and swamps in eastern North America ( from central Ohio to western New York; south to eastern Tennessee to northern Georgia ).
The oblong leaves, up to 12 x 4 inches in size, are glossy bright green.
The fragrant flowers, up to 0.5 inches long, are borne on dense umbels during late spring.
They are followed by black berries.
Hardy zones 4 to 8 in partial to full shade on moist, fertile, acidic, humus-rich, well drained soil. Propagation is from division or seed during autumn.

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


Clintonia uniflora
A rhizomatous perennial, reaching up to that is native to western North America ( from coastal southern Alaska to Alberta; south to northern California to Idaho to western Montana ).
The leaves, up to 6 x 2.5 inches in size,
The flowers, up to 0.8 inches in length, are borne during late spring.
Hardy zones 7 to 9 in partial shade on moist, humus-rich, well drained soil.

Wednesday, January 7, 2015

Great Lakes Wheat Grass

Agropyron psammophilum ( Great Lakes Wheat Grass )
Also called Elymus lanceolatus subsp psammophilus. A very attractive, rhizomatous, fast spreading, perennial grass, reaching up to 3 feet in height, that is native to sheltered sand dunes along Lake Superior, Lake Michigan and Lake Huron. One the Canadian side, it is found from Manitoulin Island south to Grand Bend. In its natural habitat, it is important for dune stabilization. It is endangered in the wild and is rarely found in cultivation. It has good forage value for livestock.
Prefers soil PH 6.5 +. It is drought tolerant and moderately salt tolerant.

* photo taken on Aug 30 2013 in Grand Bend, Ontario

Monday, January 5, 2015

Muehlenbeckia

Muehlenbeckia

Muehlenbeckia axillaris
A moderate growing, semi-evergreen groundcover shrub, reaching only 6 inches in height.
The small, oval leaves are deep green. The leaves are evergreen into zone 6.
Hardy zones 6 to 9 in full sun to partial shade on well drained soil. It is drought tolerant. Very heat and humidity tolerant, it thrives in the southeastern U.S. Tolerates light foot traffic. It is easily propagated from layering as the stems naturally self layer.

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

* photos taken on Oct 21 2014 @ Smithsonian Inst., Washington, DC

Money Plant

Lunaria

Lunaria annua ( Money Plant )
A biennial, reaching up to 3.3 feet in height, that is native to southern Europe.
The broad, toothed leaves, up to 4 x 2.5 inches in size, are mid-green.
The fragrant, pink to purple flowers are borne during late spring.
They are followed by papery, flat, oval, seed pods, up to 2 inches wide, that are great for use in floral arrangements.
Hardy zones 4 + in full sun to part shade on just about any well drained soil. Sow seeds very early in spring.

* photos taken on May 7 2014 @ London Town Gardens, Edgewater, MD


'Alba'
White flowers.

Lunaria redidiva
A perennial, up to 4.5 feet in height, that is native to mountain woodlands that is a widespread native in much of Europe, across northern Asia to Siberia.
The toothed, cordate-triangular leaves are mid-green.
The fragrant, very pale lilac flowers are borne late spring into early summer.
Hardy zones 6 to 8 in full sun to partial shade on moist, fertile, well drained soil. Propagation is from ssed sown during spring.

Purple Loosetrife

Lythrum

Lythrum salicaria ( Purple Loosetrife )
A perennial, reaching up to 4 feet, that is native to Europe. It is invasive in the Midwest and northeastern U.S. and should not be planted in those regions.
The lance-shaped leaves are downy green.
The flowers are borne on upright racemes mid-summer into early autumn.
Hardy zones 3 to 8 in full sun on moist to wet soil. Deadhead after blooming to prevent invasive seeding. Propagation is from division during early spring.

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

* photos taken on Aug 1 2013 @ Stratford, Ontario


'Blush'
Pale blush-pink flowers; otherwise identical to species.

'Robert'
Bright pink flowers, otherwise identical to species.

Lythrum virgatum
A clumping perennial, reaching up to 3 feet, that is native to temperate Eurasia.
The lance-shaped leaves are mid-green.
The flowers are borne on upright racemes all summer long.
Hardy zones 3 to 8 in full sun on moist to wet soil. Deadhead after blooming to prevent invasive seeding. Propagation is from division during early spring.

Spring Starflower

Ipheion uniflorum

A bulbous perennial, reaching up to 2 x 2 feet.
The grassy foliage appears during autumn and persists until late spring or early summer after blooming to go dormant.
The flowers, up to 1 inch across, are bluish-white. They are borne during early spring.
Hardy zones 5 to 9 in full sun to partial shade on acidic well drained soil. Spring Starflower thrives in deciduous woodland conditions. The bulbs should be planted 3 inches deep and 6 inches apart. Divide clumps of bulbs during early spring if propagation is desired.

'Rolf Fiedler'
Deep blue flowers.

Oak Fern

Gymnocarpium dryopteris
A rhizomatous perennial, reaching up to 1 foot in height, that is a widespread native to temperate regions of Eurasia and North America ( from Alaska to Newfoundland & Labrador; south to Oregon to Montana to South Dakota to northern Iowa to central Ohio to Maryland ).
The deciduous, broad-triangular fronds, up to 10 inches in length, are bright green.
Hardy zones 5 to 7 in partial to full shade on moist, cool, humus-rich, acidic soil.

Spider Lily

Hymenocallis

Hymenocallis coronaria ( Shoals spider-lily )
A very beautiful perennial, reaching up to 3 ( rarely over 1.5 ) feet in height, that is native to the southeastern U.S in the Piedmont from central Alabama to North Carolina. It is endangered with no more than 50 populations remaining in the wild. It no longer occurs in North Carolina.
The strap-shaped leaves are mid-green.
The very fragrant, white flowers, up to 1.5 inches wide, are borne during early summer. The flowers are borne atop a stalk up to 20 inches tall.
Hardy zones 7a to 10 in full sun to partial shade on just about any moist soil. It is easy to grow, even from seed.

* photos of unknown internet source


Hymenocallis occidentalis ( Northern Spiderlily )
A long-lived perennial, reaching up to 2 feet in height, that is native to bottomland forests in the southeastern U.S. ( from southeast Missouri to southern Indiana to North Carolina; south to Louisiana to northern Florida ). The narrow leaves are up to 12 inches in length.
Hardy zones 7 to 10 ( 5 and 6 and tolerating as low as -20 F on protected sites with deep winter mulch ) in partial shade on moist, well drained soil. It is tolerant of flooding.

* photo taken by Robert H. Mohlenbrock @ USDA SCS. 1989. Midwest wetland flora

Hylomecon

Hylomecon vernalis
A rhizomatous perennial, reaching up to 1.3 x 1.5 feet in size, that is native to coniferous forests in far eastern Russia, northeastern China, northern Korea and Japan.
The pinnate leaves, up to 6 x 6 inches in size, are composed of toothed, ovate leaflets. The foliage is bright green.
The yellow flowers are borne over a 3 week period during late spring.
Hardy zones 4 to 7 ( 3 on protected sites ) in partial to full shade on just about any moist, humus-rich, well drained soil.
Propagation is from seed or division.

Hylomecon japonicum
Nearly identical.

Hops

Humulus

Humulus japonicus ( Japonicus Hop )
A vigorous prickly stemmed perennial vine, reaching up to 12 feet in height.
The toothed and palmately-lobed leaves are up to 6 inches in length.
The creamy-white flowers appear during late summer.

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


'Variegata'
Less vigorous which may be a good thing for many gardeners.
Its deep green foliage is heavily and boldly splashed in white. It looks great on fence or trellis where it has climbing support. Humulus lupulus ( European Hop )
A very fast growing ( often invasive ) and spreading, herbaceous perennial vine, reaching up to 20 feet in height. It is native to most of Europe to central Asia. The stems die back to the thick rootstock during winter.
The foliage resembles that of Grapes.
The male and female flowers occure on separate plants. The female plants only produce hops. Hardy zones 3 + in full sun to partial shade on deep, fertile soil. Cut to ground after autumn frosts. Propagation is from root division after fall frost or early spring.

* photo of unknown internet source


'Aureus' ( Golden Hop )
Attractive golden-yellow foliage. It is a male form that does not produce hops.

* photo of unknown internet source

Hardy Amaryllis

Hippeastrum x johnsonii
Just like Hostas, the clumps gradually increase in size.
The hybrid between Hippeastrum reginae ( Peru ) & H vittatum of Brazil.
The attractive leaves, up to 2.5 feet in length, are glossy deep green though may have a bronze cast in full sun.
The intense scarlet-red ( with white stripes ) flowers, up to 5 inches in length, are borne 4 to 6 on stems up to 20 inches high during late spring. A single bulb may produce up to 4 flowering stems.
Hardy zones 6 to 10 in full sun to partial shade. They look great in mass plantings, planted about 12 inches apart. Saint Joseph Lily is very hardy and will often survive for decades on their own. Propagation is from dividing clumps during autumn or very early spring before growth begins. St Joseph Lily does not normally produce viable seed.

* photos of unknown internet source

Downy Rattlesnake Plaintain

Goodyera pubescens
A perennial, reaching up to 1.5 feet, that is native to either moist or dry woodlands in eastern North America.
The leaves, up to 2.3 x 1 inch in size, are mid-green with white veins and a broad white midrib. The foliage remains attractive through winter.
The white flowers are borne early to late summer.
It thrives in partial shade on well drained soil.

Glaucidium palmatum

A perennial, reaching up to 2 x 2 feet, native to mountain forest in Japan, that is a member of the buttercup family.
The 7 to 11 lobed leaves are up to 14 inches across.
The light lavender ( rarely white or purple ) flowers, up to 3 inches wide, are borne atop stems up to 2.3 feet high, during late spring.
Hardy zones 5 to 7. Thriving in shade on moist, cool, humus-rich soil, it is tolerant of dry shade. It spends most of its first year developing a deep root system while little seems to be happening above ground. The wait is well with it. It does not enjoy root disturbance or division and is usually grown from seed.

Galax

Galax urceolata
A rhizomatous, evergreen, groundcover perennial that is native to the southern Appalatian Mountains ( from eastern Kentucky to far north-central West Virginia to southeast Virginia; south to central Alabama to central Georgia to central South Carolina ). It is slow to establish, usually taking 2 or more years to show significant growth.
The toothed, rounded leaves are up to 6 ( rarely over 4 ) inches wide. The leathery foliage is bright green at first, turning to deep green, then finally to deep red during winter.
The white flowers are borne on spires up to 16 inches high during early summer over a period lasting around 3 weeks.
Hardy zones 3 to 8 in partial to full shade on moist, cool, very acidic, well drained soil. It will scorch badly with afternoon sun.

Summer Hyacinth

Galtonia candicans
The fragrant, white, bell-shaped flowers are borne on stems up to 4 feet high, during mid-summer and lasting about 2 weeks. Up to 30 flowers may be borne per stem. They look best planted in groups. Summer Hyacinth is native to South Africa.
The lance-shaped leaves are grayish-green.
Hardy zones 6 to 10 ( mulch heavily during winter in 6 & 7 ) in full sun on fertile, very well drained soil. It likes regular moisture while actively growing during spring and summer, and drier conditions or no supplemental watering after. Pick their permanent site carefully as they do not like root disturbance or transplanting.

Escallonia

Escallonia
A genus of 60 species of shrubs or small trees that are native to temperate regions of South America, mostly in the southern Andes Mountains region. Most species are evergreen.
They thrive especially well in maritime climates including much of the British Isles and milder parts of the Pacific Northwest. Escallonias do not enjoy the humidity and warm summer nights in the southeastern U.S. Many species tolerate clipping and make great hedges.
Propagation is from seed, semi-hardwood cuttings taken during autumn or softwood cuttings taken during spring.

* photos taken on May 2 2014 in Columbia, MD

* photos of unknown internet source


Escallonia 'Apple Blossom'
A handsome, fast growing shrub, reaching a maximum size of 15 x 9 feet. Some records include: 5 years - 10 feet.
The leaves, up to 2 inches in length, are glossy deep green.
The large, white and pink flowers are borne on short, terminal racemes.
Hardy zones 8 to 10 in full sun on just about any well drained soil.

Escallonia bifida ( White Escallonia )
Also called Escallonia montevidensis. A fast growing, attractive, dense, long-lived, evergreen small tree, reaching a maximum size of 30 x 27 feet, that is native to Uruguay and neighboring parts of Brazil. Some record include: fastest growth rate - 2 feet; 20 years - 20 x 17 feet; largest on record - 45 feet with a trunk diameter of 1.5 feet.
The finely-toothed leaves, up to 4 x 0.8 inches in size, are glossy deep green above, pale green beneath. The leaves have a white midrib.
The fragrant, white flowers are borne on panicles, up to 9 x 5 inches in size, all summer long.
Hardy zones 8 to 10 in full sun on just about any well drained soil.

'Compact Form'
A compact, dense, dwarf form, reaching only 6 x 5 feet. It is shearable and makes a great hedge.

Escallonia 'Donard Beauty'
A rounded shrub, reaching up to 10 x 10 feet.
The aromatic leaves are large for an Escallonia.
The very abundant flowers are intense rosy-red.
Hardy zones 8 to 10 in full sun on just about any well drained soil.

Escallonia x exoniensis
A fast growing, upright, large, evergreen shrub, reaching a maximum size of 25 x 25 feet. It is the hybrid of Escallonia rosea and E. rubra.
The leaves, up to 2 x 0.5 inches in size, are glossy deep green above, bright green beneath.
The white to pale pink flowers are borne on loose panicles at the stem tips. They are borne over a very long season from late spring to late autumn.
Hardy zones 8 to 10 in full sun on just about any well drained soil.

'Frades'
Deep red flowers; otherwise identical.

Escallonia illinata
Also called Escallonia viscosa. An evergreen large shrub to small tree, reaching a maximum size of 33 x 15 feet, that is native to Chile.
The aromatic leaves, up to 2.5 inches in length, are glossy deep green.
The white flowers are borne on cylindrical panicles up to 1.5 inches in length.
Hardy zones 7 to 9 in full sun on just about any well drained soil.

Escallonia laevis
A dense, multi-stemmed, rounded, evergreen, large shrub, reaching a maximum size of 20 x 17 feet, that is native to the Organ Mountains in southern Brazil. Some record include: fastest growth rate - 3 feet.
The aromatic, finely-toothed leaves, up to 3 inches in length, are deep green above, bright green beneath.
The mid-pink ( rosy-red in bud ) flowers are borne on pyramidal panicles, up to 3 inches in length, during summer and early autumn.
Hardy zones 8 to 10 in full sun on just about any well drained soil.

Escallonia leucantha
A very attractive, upright, evergreen, large shrub to small tree, reaching a maximum size of 30 ( rarely over 15 ) feet with a trunk diameter of 1 foot. It is native to central Chile and is especially common in Valdivia. It can live up to 80 years or more.
The obovate leaves, up to 1 inch in length, are bright green at first, turning to glossy deep green.
The creamy-white tubular flowers are borne on panicles during early summer.
Hardy zone 9 in partial shade on moist soil. It is tolerant of coastal wind and salt spray but not drought.

Escallonia 'Lou Ann'
A slow growing, low hedging form, reaches only up to 2 x 3 feet in size. The mid-pink flowers are borne abundantly during early summer then sporadically until late autumn.
Hardy zones 8 to 10 in full sun on just about any well drained soil. Drought tolerant.

Escallonia 'Newport Dwarf'
A fast growing, dense, compact, domed shrub, reaching a maximum size of 3 x 5 feet. It makes a great foundation plant or low hedge.
The oval leaves are bright green at first, turning to glossy deep green.
The showy flowers are red in bud, opening to deep pink. The flowers appear during early summer, however it may bloom sporadically during the remainder of summer and fall.
Hardy zones 8 to 10. Salt tolerant.

Escallonia 'Peach Blossom'
A handsome, fast growing shrub, reaching a maximum size of 8 x 9 feet.
The leaves, up to 1.5 inches in length, are glossy deep green.
The pale pink flowers are borne on short, terminal racemes.
Hardy zones 8 to 10 in full sun on just about any well drained soil.

Escallonia 'Pride of Donard'
Glossy deep green foliage.
The bright rosy-pink flowers are borne on terminal racemes during most of the year in mild climates.
Hardy zones 8 to 10 in full sun on just about any well drained soil.

Escallonia pulverulenta
A fast growing, evergreen, large shrub to small tree, reaching a maximum height of 40 ( rarely over 15 ) feet with a trunk diameter of 16 inches; that is native to central Chile. It is very attractive and make a great windbreak or screen for coastal areas. The finely-toothed leaves, up to 4 x 1.5 inches in size, are bright green at first, turning to glossy mid-green.
The showy, white flowers are borne on dense, cylindrical panicles up to 8 inches in length.
Hardy zones 9 to 10 in full sun on well drained soil. It requires a mediterranean climate with a yearly average rainfall between 16 and 32 inches. It is very tolerant of coastal wind and salt spray and should make an ideal landscape plant in coastal parts of much of California.

Escallonia revoluta
An evergreen large shrub to small tree, reaching up to 30 feet, that is native to Chile. Some records include: largest on record - 43 feet with a trunk diameter of 2.4 feet.
The leaves, up to 2 x 1.3 inches in size, are softly gray-felted.
The twigs are also gray felted.
The white to pale pink flowers are borne on terminal panicles, up to 3 inches in length, from late summer into early autumn.
Hardy zones 8 to 10 in full sun on just about any well drained soil.

Escallonia rubra ( Red Escallonia )
A very fast growing, evergreen, large shrub, reaching up to 20 feet, that is native to Chile. Some records include: 4 years - 7 feet; largest on record - 27 feet with a trunk diameter of 7 inches.
The aromatic leaves, up to 3 x 1 inches in size, are glossy very deep green. The deep rosy-red flowers are borne on loose panicles, up to 4 inches in length, during mid-summer.
Hardy zones 7 to 10 in full sun on just about any well drained soil. It requires a maritime climate and thrives on coastal sites next to the ocean.

'C.F. Ball'
Originated in Scotland as a seedling of Escallonia rubra var macrantha. It is very vigorous yet compact and dense, reaching a maximum size of 10 x 10 feet.
The aromatic, large leaves are up to 2.5 inches in length.
The flowers are deep red.

'Crimson Spire'
Upright habit with bright red flowers.

var macrantha
Vigorous but compact, reaching up to 12 feet. It is great for hedging.
The aromatic leaves, up to 3.3 x 2 inches in size, are glossy deep green.

Escallonia virgata
An arching, medium-sized, deciduous shrub, reaching a maximum size of 12 x 12 feet, that is native to southern Chile, often at high elevations. It requires permanently moist to wet soil and is often found in bogs and along waters edge in the wild.
The obovate leaves, up to 1 x 0.3 inches in size, are bright green, later turning to glossy deep green.
The white flowers are borne on axilliary racemes during early summer.
The trunks and branches are reddish.
Hardy zones 6 to 10 ( tolerating 0 F at Kew Gardens in England with no protection ) in full sun on acidic, well drained soil.

Myrtle

Myrtus

Myrtus communis
A very attractive, moderate growing, large evergreen shrub, reaching up to 12 feet, that is native to the Middle East, east to Afghanistan. It is popular in southern Europe and in California. It is dense, upright and pyramidal when young, older plants become more rounded. It makes an excellent hedge. Some records include: largest on record - 38 x 37 feet with a trunk diameter of 1 foot.
The oppositely-arranged, ovate leaves, up to 2 inches in length, are glossy deep green.
The 5-petalled, fragrant, white ( pink in bud ) flowers, up to 0.6 inches across, are borne during late spring and early summer.
The ovoid fruits, are followed by deep purple berries, up to 0.5 inches in length. The attractive bark is smooth and brown.
Hardy zones 9 to 10 ( some clones hardy in zone 8 ) in full sun to partial shade on very well drained soil.

* photo of unknown internet source


'Tarentina' ( Tarentum Common Myrtle )
A dwarf shrub, reaching up to 3 x 3 feet in 10 years. Regular Myrtus communis is moderate growing and much larger.
The closely-spaced, very small leaves, up to 0.8 inches, are green.
Hardy zones 7 to 10 in full sun to partial shade on just about any well drained soil. Mature plants should be watered deeply once monthly. Propagation is from cuttings ( or seed for the species ). Spider Mites of scale may sometimes bother myrtle, but generally it is pest free.

'Variegata'
Foliage is boldly margined creamy-white.

Myrtus nivellei ( Saharan Myrtle )
Very similar to Myrtus communis but is native to 2 small areas of relict forests just north of the central Saharan Plains in the Tassili n'Ajjer Mountains in Southern Algeria as well as the Tibesti Mountains in northern Chad. It is critically endangered in the wild.

Myrtus ugni

* video found on Youtube

Skunk Cabbage

Lystichiton

Lystichiton americanus ( Yellow Skunk Cabbage )
A deep-rooted, long-lived perennial, reaching up to 3 x 3 feet, that is native to swampy woodlands in the western U.S. ( from Alaska to Montana; south to northwest California ). It is useful for the edges of ponds and lakes.
The leathery large, oblong leaves, up to 5 feet tall, are glossy deep green.
The very small green flowers, borne during early spring, are surrounded by a large yellow spathe up to 8 inches long.
Hardy zones 5 to 9 in full shade on wet soil.

Lystichiton camtschatiiensis
A deep-rooted, long-lived perennial, reaching up to 3 x 3 feet, that is native to northeast Asia ( from eastern Siberia to Kamchatka; south to Japan ). It is useful for the edges of ponds and lakes.
The leathery large leaves are glossy deep green.
The very small green flowers, borne during early spring, are surrounded by a large white spathe.
Hardy zones 5 to 9 in full shade on wet soil.

Sweet Potato Vine

Ipomoea batatas
A tuberous rooted perennial vine ( annual in cold climates ), reaching up to 10 feet, that is native from southern Mexico to northern South America. The leaves are ovate to palmately-lobed. Hardy zones 9 to 12 in full sun on light, well drained soil. It enjoys hot humid weather with warm nights. It is easy to grow and rarely bothered by insect pests or disease. Cultivars are easily grown from cuttings which readily root if stuck in a vase of fresh water.

* photo taken on Aug 15 2014 @ Druid Hill Park, Baltimore, MD

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


'Blackie'

* photos taken on Aug 1 2013 in Stratford, Ontario

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


Ipomoea pandurata ( Wild Potato Vine )
A herbaceous perennial vine, reaching up to 17 feet in length, that originates from a very large, deep root system. It is native to meadows and open woods in eastern North America ( from southeast Nebraska to northern Illinois to southern Michigan to Rochester, New York to Massachusetts; south to central Texas to central Florida ). The large root resembles a yam and may weigh up to 20 pounds.
The deeply-cordate, ovate leaves are up to 6 x 3.2 inches in size.
The white ( often centered purple ) flowers, up to 3 inches wide, are borne late spring into early autumn.
The roots can be dug during summer and boiled or bakes like that of Sweet Potato. The tough outer skin needs to be peeled before eating. Seasoned and buttered it can be quite delicious.
Hardy zones 6 to 9 in full sun to partial shade on well drained soil.