Showing posts with label ferns. Show all posts
Showing posts with label ferns. Show all posts
Thursday, 6 March 2014
Fern Athyrium Painted Lady Ferns
A genus of temperate to cold climate, perennial Ferns with interesting foliage that prefers partial to full shade and light, moist, fertile soils. Deer resistant!
Generally immune to insect pests and disease except for foliage rust which is rare. Plants can be propagated by dividing every 3 or more years during autumn or early spring. Pests and disease problems are rare, however slugs may sometimes occur.
Athyrium alpestre ( Alpine Lady Fern )
A deciduous fern, reaching up to 2.5 x 2 feet, that is native to northern Eurasia and North America ( from western U.S. mountains, Canada, Greenland and Iceland ).
The bipinnate fronds, up to 36 x 10 inches, are bright green.
Hardy zones 1 to 5, requiring a cool climate.
Athyrium asplenioides ( Southern Lady Fern )
May be nothing more than a dwarfer North American variant of Athyrium felix-femina. A moderate growing, slow spreading, deciduous fern, reaching up to 4 x 3 feet. It is a widespread North American native from Manitoba to New Brunswick; south to eastern Texas to Florida. It may eventually form impressive colonies on ideal sites.
The attractive double-pinnate fronds are bright green. The foliage combined well with large blue Hostas.
Hardy zones 4 to 8 in partial to full shade on just about any moist fertile soil. It is easy to grow and even thrives on swampy sites.
Athyrium augustum
A deciduous clump Fern reaching up to 4 x 4 feet and is native to North America from Saskatchewan to Newfoundland; south to Nebraska to Missouri to North Carolina.
Its fronds are up to 36 x 14 inches and a clump can spread up to 3 feet in 5 years.
Hardy zones 2 to 8.
* photo taken on Aug 6 2013 in Stratford, Ontario
rubellum ( Lady in Red Fern )
Luxuriant green foliage contrasts with vibrant red stems. Very ornamental. Otherwise similar to above. Easy to grow and looks great with purple Heucheras.
Same size and growth rate as Athytium augustum.
* photo taken on Aug 18 2013 in Columbia, MD
Athyrium cyclosporum ( Western Lady Fern )
An impressive deciduous Fern native to western North America that reaches up to 8 feet in height even far from its native range in New York State. Hardy north to zone 5
Athyrium filix-femina ( Lady Fern )
An abundant, deciduous Fern with an extremely widespread range in Europe and Asia. It is a deciduous clumper reaching up to 6.6 x 7 ( rarely over 5 ) feet.
The beautiful, fine, lacy fronds up to 72 x 14 inches are leathery, thin and luxuriant medium green. The frond stems are reddish. This Fern produces new fronds continuously throughoutthe growing season.
Hardy zones 2 to 8 in partial to full shade on moist, fertile, acidic soil. Easy to grow and enjoys moist shade. It can tolerate some sun, wet soil and the occasional drought.
* photos taken on June 30 2013 @ U.S. National Arboretum, DC
Fieldiae
Strong growing, reaching up to 2.5 feet with cross-patterned, paired leaflets.
* photos taken on Aug 4 2013 in Bayfield, Ontario
Frizelliae ( Tatting Fern )
A deciduous clump Fern reaching up to 20 x 45 inches.
Its bright green fronds are narrow and reduced to beadlike balls.
Hardy zones 3 to 8
* photos taken on Aug 25 2013 @ University of Maryland, College Park
Rotsteil
Reaches up to 5 x 2 feet with delicate lacy loose fronds.
Setigerum
Reaches up to 20 inches with very slender leaflets.
Vernoniae Cristatum ( Red Stemmed Lady Fern )
A fast growing, deciduous spreading fern reaching up to 4 x 3 feet. The mahogany red stemmed elegant, frilled, deep green, narrow fronds have crested pinnae tips. Hardy zones 4 to 8
Victoriae Tall
A spectacular, deciduous clump fern to 4 feet in height. Its medium green, narrow foliage has pinnae which criss cross forming Xs and having created leaflet tips. No other Fern does this.
Tough and fairly drought tolerant. hardy zones 4 to 9
* photo taken on June 30 2013 @ U.S. National Arboretum, DC
Athyrium x Ghost ( Ghost Fern )
A hydrid between the Japanese Painted Fern and American Lady Fern this is sterile.
It is a tall, deciduous, strong growing, clump Fern reaching a maximum size of 3 x 5 feet with ghostly silvery-gray fronds.
Great as an accent or in large masses in front of dark evergreens.
Hardy zones 3 to 8
* photo taken on May 8 2010 @ McCrillis Gardens, Bethesda, MD
* photo taken on annual Horticultural Society of Maryland Garden Tour
* photo taken on Aug 25 2011 @ Scott Arboretum, Swarthmore College, PA
Athyrium japonicum ( Black Lady Fern )
A deciduous fern reaching a maximum height of 2 feet, that is native to much of eastern Asia.
Hardy zones 6 to 8
Athyrium nipponicum ( Japanese Lady Fern )
A deciduous fern, reaching a maximum size of 32 inches x 3+ feet, that is native to Manchuria, China, Korea and Japan. The triangular fronds, up to 28 x 10 inches, bear pinnae up to 5 inches in length that bear subleaflets that are toothed and deeply-cut.
Hardy zones 4 to 8 ( clones from Manchuria likely hardy zone 3 ) in partial to full shade on moist, fertile, humus-rich, acidic soil.
It often self seeds ( correctly self spores )
* photo taken on June 30 2013 @ U.S. National Arboretum, DC
Applecourt
A deciduous spreading Fern reaching up to 2 x 2 feet. It is similar to the Japanese Painted Fern but has a even more delicate appearance due to the heavy cresting on each Frond. Hardy zones 3 to 8
* photo taken on May 6 2010 @ Brookside Gardens, Wheaton, MD
Branford Beauty
An extremely vigorous but moderate spreading, deciduous Fern reaching up to 3 x 2.5 feet. It is a hybrid between the Lady Fern and the Japanese Painted Fern. It has an upright habit but also the red center variegation of the Painted Fern as well as red stems. Easily self seeds.
Hardy zones 4 to 8
Branford Rambler
A fast spreading, deciduous Fern that forms a dense groundcover that is not invasive.
Its foliage is similar to that of the Japanese Painted Fern but with the stems being more red. It can reach up to 2 x 3 feet.
Hardy zones 4 to 8. Moderately drought tolerant.
* photo taken on May 8 2010 @ McCrillis Gardens, Bethesda, MD
Burgundy Lace
Similar to Pictum but only reaching a maximum size of 2 x 3 feet and with all burgundy new growth. The fronds later turn to purple with silvery stripes.
* photo taken on April 11 2010 @ U.S. National Arboretum
* photo taken on June 23 2013 @ U.S. National Arboretum, DC
Pewter Lace
Moderate growing, reaching up to 2.1 x 2.3 feet with lacy fronds that are intensely silvery-white with a contrasting red-purple midrib.
Pictum ( Japanese Painted Fern )
A deciduous spreading Fern reaching up to 32 inches x 5 + feet after many years; that is one of the most popular landscape Ferns in America.
The spectacular foliage up to 8 inches across is triangular and multicolored deep green, silver gray and burgundy. This Fern continues to send up new fronds all summer and even fall. New plants form nice clumps very rapidly.
Prefers light shade as full sun washes out the color and reduces vigor.
Hardy zones 4 to 9 ( 3 on sheltered sites ).
A separate extremely rare, very handsome giant form is very vigorous, reaching up to 3.5 feet in height.
* photos taken on May 8 2010 @ U.S. National Arboretum, D.C.
* photo taken on May 16 2010 @ Cylburn Arboretum, Baltimore, MD
* photo taken on Aug 25 2011 @ Scott Arboretum, Swarthmore College, PA
Red Beauty
Vigorous, reaching up to 2 x 3 feet with reddened fronds.
Regal Red
Reaches up to 1.5 feet with deep reddish-violet fronds that are edged in glossy silver.
Samurai Sword
* photo taken on May 8 2010 @ McCrillis Gardens, Bethesda, MD
Silver Falls
Reaches up to 2 x 2 feet with silvery foliage. It has more silver in its foliage than "Pictum and that color lasts up to 2 months.
* photo taken on June 1 2010 in Columbia, MD
* photo taken on Aug 6 2013 in Stratford, Ontario
Ursalas Red
Reaching up to 20 x 28 inches with very attractive fronds that are deep maroon red on the inside and silvery white on the outside. Hardy zones 4 to 8
* photo taken on May 6 2010 @ Brookside Gardens, Wheaton, MD
Wildwood Twist
Very vigorous, reaching up to 2.3 x 4.8 feet.
* photos taken on May 8 2010 @ U.S. National Arboretum, D.C.
Athyrium otophorum ( Eared Lady Fern )
A deciduous clumping Fern that is native to China, Korea and Japan; that reaches up to 3 x 3 feet. Very exotic looking, its stems are deep red and the young fronds are bright green to pale silvery later turning glossy gray green to deep green, flat and triangular. The flat, triangular fronds, up to 3 x 1 feet, bear leaflets, up to 3 x 1 inches.
Hardy zones 4 to 8 in partial to full shade on moist, fertile, acidic soil.
Okanum
Reaches up to 2 x 2 feet with narrow bright green fronds.
Atyrium pycnocarpum ( Glade Fern )
Also called Diplazium pycnocarpon. A deciduous fern that is native to moist woodlands in eastern North America from Kansas to Quebec; south to Louisiana to Georgia. The Glade Fern spreads rapidly and reaches up to 4 x 6 ( rarely over 3 x 4 ) feet in size.
The elegant, narrow, 1 pinnate fronds are up to 48 x 12 inches in size.
Hardy zones 3 to 8 in partial to full shade on moist, well drained soil. It is easy to grow.
Athyrium thelpteroides ( Silvery Spleenwort )
Also called Deparia acrostichoides or Silvery Glade Fern. A large spreading Fern to 4 x 3 feet with a rapid creeping rhizome. It is native to damp woods in North America from Minnesota to Nova Scotia; south to Arkansas to Georgia and South Carolina and also eastern Asia.
The double-pinnate fronds. up to 48 x 12 inches in size, are bright green above, silvery beneath.
Hardy zones 3 to 8 in partial to full shade on deep fertile soil.
Read More..
Generally immune to insect pests and disease except for foliage rust which is rare. Plants can be propagated by dividing every 3 or more years during autumn or early spring. Pests and disease problems are rare, however slugs may sometimes occur.
Athyrium alpestre ( Alpine Lady Fern )
A deciduous fern, reaching up to 2.5 x 2 feet, that is native to northern Eurasia and North America ( from western U.S. mountains, Canada, Greenland and Iceland ).
The bipinnate fronds, up to 36 x 10 inches, are bright green.
Hardy zones 1 to 5, requiring a cool climate.
Athyrium asplenioides ( Southern Lady Fern )
May be nothing more than a dwarfer North American variant of Athyrium felix-femina. A moderate growing, slow spreading, deciduous fern, reaching up to 4 x 3 feet. It is a widespread North American native from Manitoba to New Brunswick; south to eastern Texas to Florida. It may eventually form impressive colonies on ideal sites.
The attractive double-pinnate fronds are bright green. The foliage combined well with large blue Hostas.
Hardy zones 4 to 8 in partial to full shade on just about any moist fertile soil. It is easy to grow and even thrives on swampy sites.
Athyrium augustum
A deciduous clump Fern reaching up to 4 x 4 feet and is native to North America from Saskatchewan to Newfoundland; south to Nebraska to Missouri to North Carolina.
Its fronds are up to 36 x 14 inches and a clump can spread up to 3 feet in 5 years.
Hardy zones 2 to 8.
* photo taken on Aug 6 2013 in Stratford, Ontario
rubellum ( Lady in Red Fern )
Luxuriant green foliage contrasts with vibrant red stems. Very ornamental. Otherwise similar to above. Easy to grow and looks great with purple Heucheras.
Same size and growth rate as Athytium augustum.
* photo taken on Aug 18 2013 in Columbia, MD
Athyrium cyclosporum ( Western Lady Fern )
An impressive deciduous Fern native to western North America that reaches up to 8 feet in height even far from its native range in New York State. Hardy north to zone 5
Athyrium filix-femina ( Lady Fern )
An abundant, deciduous Fern with an extremely widespread range in Europe and Asia. It is a deciduous clumper reaching up to 6.6 x 7 ( rarely over 5 ) feet.
The beautiful, fine, lacy fronds up to 72 x 14 inches are leathery, thin and luxuriant medium green. The frond stems are reddish. This Fern produces new fronds continuously throughoutthe growing season.
Hardy zones 2 to 8 in partial to full shade on moist, fertile, acidic soil. Easy to grow and enjoys moist shade. It can tolerate some sun, wet soil and the occasional drought.
* photos taken on June 30 2013 @ U.S. National Arboretum, DC
Fieldiae
Strong growing, reaching up to 2.5 feet with cross-patterned, paired leaflets.
* photos taken on Aug 4 2013 in Bayfield, Ontario
Frizelliae ( Tatting Fern )
A deciduous clump Fern reaching up to 20 x 45 inches.
Its bright green fronds are narrow and reduced to beadlike balls.
Hardy zones 3 to 8
* photos taken on Aug 25 2013 @ University of Maryland, College Park
Rotsteil
Reaches up to 5 x 2 feet with delicate lacy loose fronds.
Setigerum
Reaches up to 20 inches with very slender leaflets.
Vernoniae Cristatum ( Red Stemmed Lady Fern )
A fast growing, deciduous spreading fern reaching up to 4 x 3 feet. The mahogany red stemmed elegant, frilled, deep green, narrow fronds have crested pinnae tips. Hardy zones 4 to 8
Victoriae Tall
A spectacular, deciduous clump fern to 4 feet in height. Its medium green, narrow foliage has pinnae which criss cross forming Xs and having created leaflet tips. No other Fern does this.
Tough and fairly drought tolerant. hardy zones 4 to 9
* photo taken on June 30 2013 @ U.S. National Arboretum, DC
Athyrium x Ghost ( Ghost Fern )
A hydrid between the Japanese Painted Fern and American Lady Fern this is sterile.
It is a tall, deciduous, strong growing, clump Fern reaching a maximum size of 3 x 5 feet with ghostly silvery-gray fronds.
Great as an accent or in large masses in front of dark evergreens.
Hardy zones 3 to 8
* photo taken on May 8 2010 @ McCrillis Gardens, Bethesda, MD
* photo taken on annual Horticultural Society of Maryland Garden Tour
* photo taken on Aug 25 2011 @ Scott Arboretum, Swarthmore College, PA
Athyrium japonicum ( Black Lady Fern )
A deciduous fern reaching a maximum height of 2 feet, that is native to much of eastern Asia.
Hardy zones 6 to 8
Athyrium nipponicum ( Japanese Lady Fern )
A deciduous fern, reaching a maximum size of 32 inches x 3+ feet, that is native to Manchuria, China, Korea and Japan. The triangular fronds, up to 28 x 10 inches, bear pinnae up to 5 inches in length that bear subleaflets that are toothed and deeply-cut.
Hardy zones 4 to 8 ( clones from Manchuria likely hardy zone 3 ) in partial to full shade on moist, fertile, humus-rich, acidic soil.
It often self seeds ( correctly self spores )
* photo taken on June 30 2013 @ U.S. National Arboretum, DC
Applecourt
A deciduous spreading Fern reaching up to 2 x 2 feet. It is similar to the Japanese Painted Fern but has a even more delicate appearance due to the heavy cresting on each Frond. Hardy zones 3 to 8
* photo taken on May 6 2010 @ Brookside Gardens, Wheaton, MD
Branford Beauty
An extremely vigorous but moderate spreading, deciduous Fern reaching up to 3 x 2.5 feet. It is a hybrid between the Lady Fern and the Japanese Painted Fern. It has an upright habit but also the red center variegation of the Painted Fern as well as red stems. Easily self seeds.
Hardy zones 4 to 8
Branford Rambler
A fast spreading, deciduous Fern that forms a dense groundcover that is not invasive.
Its foliage is similar to that of the Japanese Painted Fern but with the stems being more red. It can reach up to 2 x 3 feet.
Hardy zones 4 to 8. Moderately drought tolerant.
* photo taken on May 8 2010 @ McCrillis Gardens, Bethesda, MD
Burgundy Lace
Similar to Pictum but only reaching a maximum size of 2 x 3 feet and with all burgundy new growth. The fronds later turn to purple with silvery stripes.
* photo taken on April 11 2010 @ U.S. National Arboretum
* photo taken on June 23 2013 @ U.S. National Arboretum, DC
Pewter Lace
Moderate growing, reaching up to 2.1 x 2.3 feet with lacy fronds that are intensely silvery-white with a contrasting red-purple midrib.
Pictum ( Japanese Painted Fern )
A deciduous spreading Fern reaching up to 32 inches x 5 + feet after many years; that is one of the most popular landscape Ferns in America.
The spectacular foliage up to 8 inches across is triangular and multicolored deep green, silver gray and burgundy. This Fern continues to send up new fronds all summer and even fall. New plants form nice clumps very rapidly.
Prefers light shade as full sun washes out the color and reduces vigor.
Hardy zones 4 to 9 ( 3 on sheltered sites ).
A separate extremely rare, very handsome giant form is very vigorous, reaching up to 3.5 feet in height.
* photos taken on May 8 2010 @ U.S. National Arboretum, D.C.
* photo taken on May 16 2010 @ Cylburn Arboretum, Baltimore, MD
* photo taken on Aug 25 2011 @ Scott Arboretum, Swarthmore College, PA
Red Beauty
Vigorous, reaching up to 2 x 3 feet with reddened fronds.
Regal Red
Reaches up to 1.5 feet with deep reddish-violet fronds that are edged in glossy silver.
Samurai Sword
* photo taken on May 8 2010 @ McCrillis Gardens, Bethesda, MD
Silver Falls
Reaches up to 2 x 2 feet with silvery foliage. It has more silver in its foliage than "Pictum and that color lasts up to 2 months.
* photo taken on June 1 2010 in Columbia, MD
* photo taken on Aug 6 2013 in Stratford, Ontario
Ursalas Red
Reaching up to 20 x 28 inches with very attractive fronds that are deep maroon red on the inside and silvery white on the outside. Hardy zones 4 to 8
* photo taken on May 6 2010 @ Brookside Gardens, Wheaton, MD
Wildwood Twist
Very vigorous, reaching up to 2.3 x 4.8 feet.
* photos taken on May 8 2010 @ U.S. National Arboretum, D.C.
Athyrium otophorum ( Eared Lady Fern )
A deciduous clumping Fern that is native to China, Korea and Japan; that reaches up to 3 x 3 feet. Very exotic looking, its stems are deep red and the young fronds are bright green to pale silvery later turning glossy gray green to deep green, flat and triangular. The flat, triangular fronds, up to 3 x 1 feet, bear leaflets, up to 3 x 1 inches.
Hardy zones 4 to 8 in partial to full shade on moist, fertile, acidic soil.
Okanum
Reaches up to 2 x 2 feet with narrow bright green fronds.
Atyrium pycnocarpum ( Glade Fern )
Also called Diplazium pycnocarpon. A deciduous fern that is native to moist woodlands in eastern North America from Kansas to Quebec; south to Louisiana to Georgia. The Glade Fern spreads rapidly and reaches up to 4 x 6 ( rarely over 3 x 4 ) feet in size.
The elegant, narrow, 1 pinnate fronds are up to 48 x 12 inches in size.
Hardy zones 3 to 8 in partial to full shade on moist, well drained soil. It is easy to grow.
Athyrium thelpteroides ( Silvery Spleenwort )
Also called Deparia acrostichoides or Silvery Glade Fern. A large spreading Fern to 4 x 3 feet with a rapid creeping rhizome. It is native to damp woods in North America from Minnesota to Nova Scotia; south to Arkansas to Georgia and South Carolina and also eastern Asia.
The double-pinnate fronds. up to 48 x 12 inches in size, are bright green above, silvery beneath.
Hardy zones 3 to 8 in partial to full shade on deep fertile soil.
Tuesday, 4 March 2014
Maidenhair Ferns
Adiantum
A genus of delicate looking and dainty Ferns that are surprisingly tough.
They prefer moist, shady sites. Most do not like mulch.
Adiantum capillis veneris ( Southern Maidenhair )
A very vigorous, rhizomatous, spreading, deciduous to evergreen Fern forming a clump reaching up to 2 x 3 feet. Some records include: 2 years - width of 3 feet.
It is native to many places around the world in temperate climates including North America ( southern Missouri to Maryland; south to Texas to south Florida ) and southern Europe.
The very attractive fronds reach up to 28 x 10 inches in size, bearing many lobed leaflets. The foliage is luxuriant bright green.
The fronds are borne in slender, glossy blackish stalks.
Hardy zones 6 to 9 in partial to full shade on moist, fertile, limestone soils.
The Southern Maidenhair prefers woodland conditions. It is not prone to pests or disease.
* photo taken on Aug 29 2013 in Clarksville, MD
Banksianum
A vigorous, more upright native of the western U.S. ( northern California to southern Colorado and south, with separate ranges in British Columbia and southwest South Dakota ), reaching a maximum height of 2.5 feet.
It is hardier, surviving as far north as zone 6 ( even to zones 4 and 5 on protected sites ). Comes true from seed.
* photo taken by Gary Larson @ USDA NRCS. 1992. Western wetland flora
Fimbriatum
The leaflets have extended finger-like lobes. Otherwise similar.
Imbricatum
Dwarf form with foliage that has deeply cut lobed.
Mairisii
Broad triangular fronds have long, triangular leaflets.
Hardy zones 6 to 9
Michigan Form
A clone that is sold by Arrowhead Alpines Nursery that is hardy north to zone 5 ( generally this species is not hardy this far north ).
Despite its exceptional hardiness, it does not look to be a hybrid.
Scintilla
Twisted, very deeply cut leaflets.
Adiantum hispidulum ( Rosy Maidenhair )
A low growing, clumping Fern reaching a maximum height of 2 feet, that is evergreen in the Deep South and deciduous toward the northern limits of its range.
The foliage is similar to Adiantum pedatum but the pinnae, up to 0.3 inches, are reddish at first, turning to glossy deep green.
Hardy zones 7 to 10
Adiantum jordanii ( California Maidenhair )
An attractive groundcover Fern, reaching a maximum height of 2 feet, that is native to the western U.S. from southern Oregon to Baja California. It spreads via short creeping rhizomes.
The leaves, up to 24 inches are 3 pinnate.
Hardy zones 7 to 9
Adiantum pedatum ( Northern Maidenhair Fern )
A very decorative, long-lived, fast growing, rhizomatous, deciduous Fern that forms large dense clumps reaching a maximum size of 3 x 5 feet ( rarely reaching over 2.5 feet in height ), that is easy to grow. Deciduous to semi-evergreen depending on climate.
The Northern Maidenhair is native over much of North America and also in Japan.
The lacy branching fronds, up to 30 x 10 inches, have fan-shaped leaflets. The glossy bright green foliage turns bright golden-yellow during autumn.
The strong erect stalks are shiny and black.
Hardy zones 2 to 8 in partial to full shade on moist, acidic, well drained soil that is rich in humus. It is easy to grow tolerating both acidic and alkaline soils and even the occasional drought once established. Dividing is not required but can be done during autumn or early spring if necessary for propagation. It can also be grown from spores sown outdoors during early autumn.
* photo taken on annual Horticultural Society of Maryland Garden Tour
* photos taken on June 1 2013 in Columbia, MD
* photos taken on June 23 2013 @ U.S. National Arboretum, DC
subsp Aleuticum
Native mostly to western North America ( Alaska to Montana; south to California to New Mexico ) and Newfoundland, with fast growing clumps reaching a maximum size of 44 inches x 2.5 feet.
The fronds composed of more triangular leaflets, are pinkish at first, turning to blue-green.
Hardy zones 2 to 7.
Asiaticum
Reaches up to 2 feet with drooping fronds.
Billingsiae
Broader, blue-green, slightly ruffled segments or leaflets.
Imbricatum
Smaller growing with cascading, blue-green fronds made up of large, deeply lobed leaflets.
Forms a clump up 8 inches x 2.5 feet.
var. Japonicum
Closely related to subsp Aleuticum, reaching up to 16 inches in height, with fronds that are orangish-pink at first, turning to mid-green.
Laceratum
Similar to species except with deeply-cut leaflets.
Miss Sharples
Yellow-green fronds.
Adiantum peruvium ( Silver Dollar Fern )
Reaching up to 3 feet in height, this Fern beards fronds with 2 inch leaf segments.
The new fronds are metallic silvery-pink. It is deciduous going dormant in the winter.
Hardy zones 11, this native of Equador, Peru and Bolivia does not tolerate frosts.
Adiantum raddianum
A rhizome spreading groundcover Fern reaching up to 2 x 2 feet.
Hardy zones 9b to 11 in partial to full shade.
Kensington Gem
Very robust with fronds reaching up to 36 x 4 inches.
Adiantum venustum ( Himalayan Maidenhair )
A beautiful semi-evergreen to evergreen Fern native to the Himalayas, that forms a clump reaching a maximum size of 4 x 3.3 feet. It is slow to establish, but once established will become strong growing and spread to form broad dense colonies. The Himalayan Maidenhair may form a clump up to 40 inches across in 5 years. The Himalayan Maidenhair is an excellent groundcover plant.
The foliage is similar to that of Adiantum capillus-veneris, being composed of leaflets up to 0.3 inches. The fresh new foliage is spring is pink. A single frond may have up to 200 tiny leaflets giving this plant the ultimate fine-texture.
Hardy zones 3 to 8 ( protected sites only north of 5 ). The foliage remains evergreen to as low as 15 F.
* photo taken on May 8 2010 @ U.S. National Arboretum, D.C.
* photo taken on May 26 2013 in Columbia, MD
* photos taken on Sep 1 2013 in Columbia, MD
Adiantum vivesii
A colonial creeping rhizomatous groundcover Fern. The lustrous black-purple stalks up to 1.5 feet in height bear fronds, up to 2.5 feet with broad irrgular blades, up to 11 x 1.5 inches. It is native to the middle elevations of Puerto Rico where it is extremely endangered. Less than 1000 remain in the wild.
Hardy zones 10 to 11
Read More..
A genus of delicate looking and dainty Ferns that are surprisingly tough.
They prefer moist, shady sites. Most do not like mulch.
Adiantum capillis veneris ( Southern Maidenhair )
A very vigorous, rhizomatous, spreading, deciduous to evergreen Fern forming a clump reaching up to 2 x 3 feet. Some records include: 2 years - width of 3 feet.
It is native to many places around the world in temperate climates including North America ( southern Missouri to Maryland; south to Texas to south Florida ) and southern Europe.
The very attractive fronds reach up to 28 x 10 inches in size, bearing many lobed leaflets. The foliage is luxuriant bright green.
The fronds are borne in slender, glossy blackish stalks.
Hardy zones 6 to 9 in partial to full shade on moist, fertile, limestone soils.
The Southern Maidenhair prefers woodland conditions. It is not prone to pests or disease.
* photo taken on Aug 29 2013 in Clarksville, MD
Banksianum
A vigorous, more upright native of the western U.S. ( northern California to southern Colorado and south, with separate ranges in British Columbia and southwest South Dakota ), reaching a maximum height of 2.5 feet.
It is hardier, surviving as far north as zone 6 ( even to zones 4 and 5 on protected sites ). Comes true from seed.
* photo taken by Gary Larson @ USDA NRCS. 1992. Western wetland flora
Fimbriatum
The leaflets have extended finger-like lobes. Otherwise similar.
Imbricatum
Dwarf form with foliage that has deeply cut lobed.
Mairisii
Broad triangular fronds have long, triangular leaflets.
Hardy zones 6 to 9
Michigan Form
A clone that is sold by Arrowhead Alpines Nursery that is hardy north to zone 5 ( generally this species is not hardy this far north ).
Despite its exceptional hardiness, it does not look to be a hybrid.
Scintilla
Twisted, very deeply cut leaflets.
Adiantum hispidulum ( Rosy Maidenhair )
A low growing, clumping Fern reaching a maximum height of 2 feet, that is evergreen in the Deep South and deciduous toward the northern limits of its range.
The foliage is similar to Adiantum pedatum but the pinnae, up to 0.3 inches, are reddish at first, turning to glossy deep green.
Hardy zones 7 to 10
Adiantum jordanii ( California Maidenhair )
An attractive groundcover Fern, reaching a maximum height of 2 feet, that is native to the western U.S. from southern Oregon to Baja California. It spreads via short creeping rhizomes.
The leaves, up to 24 inches are 3 pinnate.
Hardy zones 7 to 9
Adiantum pedatum ( Northern Maidenhair Fern )
A very decorative, long-lived, fast growing, rhizomatous, deciduous Fern that forms large dense clumps reaching a maximum size of 3 x 5 feet ( rarely reaching over 2.5 feet in height ), that is easy to grow. Deciduous to semi-evergreen depending on climate.
The Northern Maidenhair is native over much of North America and also in Japan.
The lacy branching fronds, up to 30 x 10 inches, have fan-shaped leaflets. The glossy bright green foliage turns bright golden-yellow during autumn.
The strong erect stalks are shiny and black.
Hardy zones 2 to 8 in partial to full shade on moist, acidic, well drained soil that is rich in humus. It is easy to grow tolerating both acidic and alkaline soils and even the occasional drought once established. Dividing is not required but can be done during autumn or early spring if necessary for propagation. It can also be grown from spores sown outdoors during early autumn.
* photo taken on annual Horticultural Society of Maryland Garden Tour
* photos taken on June 1 2013 in Columbia, MD
* photos taken on June 23 2013 @ U.S. National Arboretum, DC
subsp Aleuticum
Native mostly to western North America ( Alaska to Montana; south to California to New Mexico ) and Newfoundland, with fast growing clumps reaching a maximum size of 44 inches x 2.5 feet.
The fronds composed of more triangular leaflets, are pinkish at first, turning to blue-green.
Hardy zones 2 to 7.
Asiaticum
Reaches up to 2 feet with drooping fronds.
Billingsiae
Broader, blue-green, slightly ruffled segments or leaflets.
Imbricatum
Smaller growing with cascading, blue-green fronds made up of large, deeply lobed leaflets.
Forms a clump up 8 inches x 2.5 feet.
var. Japonicum
Closely related to subsp Aleuticum, reaching up to 16 inches in height, with fronds that are orangish-pink at first, turning to mid-green.
Laceratum
Similar to species except with deeply-cut leaflets.
Miss Sharples
Yellow-green fronds.
Adiantum peruvium ( Silver Dollar Fern )
Reaching up to 3 feet in height, this Fern beards fronds with 2 inch leaf segments.
The new fronds are metallic silvery-pink. It is deciduous going dormant in the winter.
Hardy zones 11, this native of Equador, Peru and Bolivia does not tolerate frosts.
Adiantum raddianum
A rhizome spreading groundcover Fern reaching up to 2 x 2 feet.
Hardy zones 9b to 11 in partial to full shade.
Kensington Gem
Very robust with fronds reaching up to 36 x 4 inches.
Adiantum venustum ( Himalayan Maidenhair )
A beautiful semi-evergreen to evergreen Fern native to the Himalayas, that forms a clump reaching a maximum size of 4 x 3.3 feet. It is slow to establish, but once established will become strong growing and spread to form broad dense colonies. The Himalayan Maidenhair may form a clump up to 40 inches across in 5 years. The Himalayan Maidenhair is an excellent groundcover plant.
The foliage is similar to that of Adiantum capillus-veneris, being composed of leaflets up to 0.3 inches. The fresh new foliage is spring is pink. A single frond may have up to 200 tiny leaflets giving this plant the ultimate fine-texture.
Hardy zones 3 to 8 ( protected sites only north of 5 ). The foliage remains evergreen to as low as 15 F.
* photo taken on May 8 2010 @ U.S. National Arboretum, D.C.
* photo taken on May 26 2013 in Columbia, MD
* photos taken on Sep 1 2013 in Columbia, MD
Adiantum vivesii
A colonial creeping rhizomatous groundcover Fern. The lustrous black-purple stalks up to 1.5 feet in height bear fronds, up to 2.5 feet with broad irrgular blades, up to 11 x 1.5 inches. It is native to the middle elevations of Puerto Rico where it is extremely endangered. Less than 1000 remain in the wild.
Hardy zones 10 to 11
Subscribe to:
Posts (Atom)