Monday, August 13, 2018

Climbing Hydrangeas

Hydrangea anomala
A rapid growing deciduous, aerial rooting self clinging vine reaching a maximim height of 50 feet in height. It is very similar to Hydrangea petiolaris and is native to Sakhalin, South Korea and most of Japan.
The coarsely-toothed, oval leaves, up to 6 x 4 inches in size are deep green above.
The white flowers are borne in flat corymbs, up to 10 inches across, during early to mid summer.
Hardy zones 4 to 7 and is pest free. Difficult to transplant unless very small, it may be slow growing until full establishment.

'Glabra'
A vine reaching up to 66 feet with pink flowers borne on lacecap clusters up to 6 inches across. Native to Taiwan.

'Tilifolia'
Very fast growing with, huge, sharply-toothed leaves and flower clusters up to 10 inches across. The attractive shredding bark is reddish.

'Winter Glow'
Reaches up to 60 feet or more, with serrate-edged, evergreen leaves that turn purple in winter. The flowers are borne on lacecap clusters during mid to late spring.

'Winter Green'
Evergreen with foliage turning very purple in winter.

Hydrangea integerrima
A large, evergreen vine native to Chile that can reach up to 100 feet in height.
The thick, leathery, up to 6 x 3 inches, are deep green.
The white flowers are borne in domed panicles up to 6 inches across.
Hardy north to zone 7

Hydrangea integrifolia ( Taiwan Evergreen Climbing Hydrangea )
An imposing evergreen, vigorous, aerial rooted climber reaching up to 100 feet or more in height that is native to the high mountains of Taiwan and the Phillipines. This vine attains massive sizes ascending large trees in its native habitat.
The toothed, elliptic to oblong leaves are up to 9 x 3 inches in size. The attractive foliage is bright crimson red to red-purple at first turning glossy deep green. The flowers are white and borne in terminal inflorescences during late summer. Plants may take over a decade to begin blooming.
The younger stems are densely covered in bristly coarse, red-purple hairs.
Hardy zones 7b to 10 and possibly even to zone 6b. A forest plant in its natural range, it prefers moist, sheltered conditions however is tolerant of tree root competition if watered heavily until establishment.

Hydrangea petiolaris ( Climbing Hydrangea )
A rapid growing deciduous, aerial rooting self clinging vine reaching up to 70 feet in height and 50 feet across. Some records include: fastest recorded growth rate - 10 feet; 10 years - 30 x 8 feet; 12 years - 40 feet; 20 years - 80 feet; largest on record - 104 x 80 feet.
The finely-toothed, oval, pointed leaves, are up to 6 x 4 inches in size. The foliage is glossy deep green above turning to yellow late in autumn ( typically November )
The white flowers are borne in flat corymbs up to 10 inches across.
The warm orange-brown, flaking bark is attractive in winter.
Hardy zones 3 to 8, is pest free and thrives in sun or shade on most moist, fertile soils. Tolerant of alkaline soil conditions. Difficult to transplant unless very small, the Climbing Hydrangea may be slow growing until full establishment.
Easily propagated by seed sown on moist soil or less easily by softwood cuttings in summer.

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

* photo taken on April 11 2010 @ U.S. National Arboretum

* photo taken on April 11 2010 in Columbia, MD

* photo taken on May 8 2010 @ U.S. National Arboretum, D.C.

* photos taken on May 8 2010 @ McCrillis Gardens, Bethesda, Maryland


* photos taken on May 16 2010 @ Cylburn Arboretum, Baltimore, MD


* photo taken on annual Horticultural Society of Maryland Garden Tour




* photo taken on August 3 2010 @ University of Guelph Arboretum, Ontario

* photos taken on May 26 2014 in Columbia, MD

* photo taken on Nov 19 2016 @ London Town Gardens, Edgewater, MD

* photo taken on May 4 2017 in Columbia, MD

* photos taken on May 16 2017 in Columbia, MD

* photos taken on May 25 2018 in Columbia, MD

* photo taken by Dr. Nick V. Kurzenko @ CalPhotos


'Mirranda'
Leaves boldly edged in golden-yellow.
The flowers are white.
Slower growing than species but still reaching up to 30 feet or more.

'Skyland Giant'
Glossy deep green foliage and huge flower heads up to 12 inches across.
The foliage persists late into autumn.
The attractive flaking bark is tan color.

'Variegata'
Wide yellow leaf margins

Hydrangea seemanii
An extremely rare strong growing, aerial rooting evergreen vine reaching up to 50 x 17 feet that is native to high elevations of the Sierra Madre Mountains in Mexico. Without support, it is sometimes found as a large upright shrub.
Fast growing and quick to establish, it can easily increase at over 4 feet per year.
The thick, elliptical leaves, up to 8 x 2.5 inches in size look more like that of an evergreen Magnolia than that of a Hydrangea. The leathery foliage is very glossy deep green.
The flowers are borne in clusters up to 6 inches across.
Hardy zones 8 to 9 ( reports of 7 are unconfirmed ). Hardy far north of its native range in oceanic climates such as London, England and lower elevations of the Pacific Northwest.

Hydrangea serratifolia
A strong growing vine native to Chile and Argentina that reaches up to 100 feet and is similar to Hydrangea seemanii.
The elliptical leaves are up to 6 x 3 inches. The foliage is deep green.
The white flowers are all fertile and are borne in clusters up to 6 inches across.
Hardy zones 6 to 10 though preferring a maritime climate.

SCHIZOPHRAGMA
A small genus of vining plants that are very closely related to the climbing Hydrangeas.

Schizophragma corylieum
A very rare deciduous climbing Hydrangea, reaching up to 30 feet in height. Some records include: 10 years - 20 feet.
The finely-toothed, ovate leaves are glossy mid-green. The creamy-white flowers are borne on flat lacecap clusters during early summer.
Older stems have attractive bright brown exfoliating bark.
Hardy zones 5 to 8 in full sun to partial shade.

Schizophragma elliptifolium ( Elliptic Hydrangea Vine )
A self-clinging deciduous vine, reaching up to 15 feet, that is native to mountain slopes in Guizhou, Sichuan and Yunnan Provinces in southern China.
The elliptical leaves are up to 5 x 2.8 inches in size. The thick but papery foliage is deep green above, gray-green beneath.
The creamy-white, lacecap flowers appear during early summer.
The twigs are reddish-brown.
Hardy zones 6 to 9 in full sun to partial shade.

'Lacy Hearts'
Very attractive gray-green foliage that is splashed and bordered creamy-white.

'Red Rhapsody'
Very attractive glossy red new foliage during spring.

Schizophragma hydrangeoides ( Japanese Hydrangea Vine )
A large, vigorous, aerial-rooting vine native to Korea and Japan that reaches up to 60 feet or more whether climbing wall or tree trunk. Some records include: fastest recorded growth rate - 5 feet; largest on record - 80 x 40 feet on wall.
The coarsely-toothed, deciduous leaves, up to 7 x 6 inches are glossy mid-green in summer turning golden-yellow during autumn.
The small white flowers are borne in large flat cymes up to 12 inches across that also include some white bracts up to 1.6 inches long. They appear late spring into early summer.
Hardy zones 5 to 8 in sun or partial shade on light, moist, well drained, fertile soil. May be slow growing until it becomes established. Pruning is not generally needed except to dead head old blooms and to cut out dead or weak growth in late winter. Easy to grow, it is not generally bothered by pests or disease. Propagation is from layering, semi-ripe cuttings taken mid to late summer or seed sown during spring.

* photo taken on May 8 2010 @ U.S. National Arboretum, D.C.




* photo taken on 4th of July 2010 @ U.S. National Arboretum, D.C.

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


'Moonlight'
Silvery-blue foliage that turns to orange during autumn.

* photos taken on May 6 2010 @ Brookside Gardens, Wheaton, MD



* photo taken on May 8 2010 @ McCrillis Gardens, Bethesda, Maryland


'Roseum'
Similar to species except for having pink rather than white flower bracts.

* photo taken on June 5 2018 in Columbia, MD


Schizophragma integrifolium
A large vigorous vine native to central China that can reach up to 66 or very rarely 80 feet in height.
The deciduous, oval, bright green leaves, up to 8 x 5 inches, are edged with very small teeth or no teeth at all.
The flowers are borne in cymes up to 12 inches across and include white bracts up to 10 inches in length.
Hardy zones 5 to 9 in sun or shade. This Hydrangea loves hot summers and its foliage in sun yet is roots in cool, fertile soil therefore mulching is recommended.
Propagation is from seed in spring or from softwood or semi-ripe cuttings taken in summer.

'Faurei'
A rare but most spectacular vine, that is native to Taiwan.
It is similar to the above, except the huge white flower clusters, up to 12 inches across, include white sepals up to 3 inches in length.

Oakleaf Hydrangea

Hydrangea quercifolia

A fast growing, large, suckering rounded shrub native to the southeastern U.S. from Tennessee to Georgia and south. Some records include: 3 years - 9 feet; largest on record - 16 x 17 feet.
The large 5 to 7 lobed leaves, up to 12 x 12 inches somewhat resemble Quercus velutina - Black Oak in outline. They are medium green above, downy beneath and turn to spectacular shades of red, orange and purple late in autumn, sometimes persisting through the winter.
The foliage is very frost tolerant both during spring and fall and can tolerate as low as 15 F without damage.
The flowers are borne in pyramidal panicles up to 13 x 6 inches, during summer and are white later turning pinkish in autumn.
The attractive stems with orangish peeling bark is an excellent winter feature.
Hardy zones 5 to 9 ( possibly 4 if sheltered and wood is well ripened after a hot summer ) in full sun to partial shade. It prefers acidic to neutral, fertile, moist, well drained soil ( does not tolerate saturated, poorly drained soil ) and a climate with hot humid summers. Established plants are drought, salt and dry shade tolerant. Fertilize with an all purpose fertilizer regularly throughout the growing season. Young plants tend to be not as cold hardy and should be sheltered in zones 5 and 6 for their first few winters ( wrapping in burlap for first winter is an option ). Can be pruned to be kept compact and far smaller than their natural size. Insect problems almost never exists and leaf spot is rare other than on containerized plants with very frequent overhead watering. Propagation is easy from seed which are sprinkled on top of potting mix, placed under mix and will germinate sometime between 2 weeks and a month. Pay close attention to moisture until the seedlings reach 1 inch in height. Cultivars can also be reproduced via cuttings and tissue culture.



* photo taken on April 11 2010 in Columbia, MD

* photo taken on May 6 2010 in Clarksville, MD


* photo taken on annual Horticultural Society of Maryland Garden Tour








* photo taken on August 3 2010 @ University of Guelph Arboretum, Ontario


* photo taken on Oct 14 2010 @ Crownsville, MD

* photo of unknown internet source

* photo taken on June 7 2011 in Columbia, MD

* photo taken on Aug 4 2012 in Bayfield, Ontario

* photo taken on Sep 7 2012 in Ellicott City, MD

* photo taken on May 20 2014 in Columbia, MD

* photo taken on Aug 3 2014 @ National Zoo, DC

* photo taken on Mar 1 2017 in Columbia, MD


'Alice'
Fast growing, reaching a maximum size of 13 x 17 feet with huge leaves up to 15 x 16 inches. Some records include: 4 years - 6 x 6.6 feet.
The deep green foliage turns to deep red in autumn.
The flower clusters are also huge, up to 24 ( rarely over 14 ) inches in length. Very heat tolerant and more sun tolerant than other cultivars.

* photo taken on Aug 24 2011 in Columbia, MD

* photos taken on June 7 2011 in Columbia, MD

* photos taken on June 21 2012 in Columbia, MD
* photo taken on July 15 2012 in Columbia, MD

* photo taken on Sep 7 2012 in Columbia, MD

* photos taken on June 12 2013 in Columbia, MD

* photo taken on June 16 2013 in Columbia, MD

* photos taken on June 11 2014 in Columbia, MD

* photos taken on June 15 2014 in Columbia, MD

* photo taken on Aug 1 2014 in Columbia, MD

* photos taken on Oct 1 2014 in Howard Co., MD

* photos taken on June 24 2015 in Columbia, MD

* photo taken on July 9 2015 in Columbia, MD

* photos taken on Aug 24 2015 in Columbia, MD

* photo taken on Oct 27 2015 in Columbia, MD

* photo taken on June 25 2017 in Columbia, MD


'Allison'
Very vigorous, it reaches a maximum size of 12 x 17 feet.
The huge leaves that are luxuriant deep green turning to glowing deep red in autumn.
The flower clusters are are similar to 'Alice' but are more upright.

* photos taken on June 23 2014 in Columbia, MD

* photos taken on June 3 2017 in Columbia, MD


'Amethyst'
Compact growing, reaching up to 8 x 8 ( rarely over 6 ) feet in 10 years.
The deep green foliage turns to red and red-purple in autumn.
The creamy-white flowers are borne in upright clusters up to 6 inches in length and turn to glowing red with age holding their color when dry.

* photo taken by Milan Havlis, owner of central Europe's premier plant nursery


'Dayspring'
Vigorous growing with large, pure white flowerheads up to 15 inches long.
The foliage turns to deep red during autumn.

* photo taken on Apr 23 2017 @ Brookside Gardens, Wheaton, MD

* photo taken on June 3 2017 in Columbia, MD

* photos taken on Aug 5 2017 @ Brookside Gardens, Wheaton, MD


'Ellen Huff'
Vigorous, heat tolerant form originating from the Gulf Coast.
The foliage turns to purplish-red during autumn.
The white flowers are borne in panicles up to 12 inches in length.

* photos taken on Aug 24 2017 @ U.S. Botanic Garden, Wash. DC.


'Gatsby Gal'
Compact in habit, reaching up to 6 x 6 feet.
The foliage turns to brilliant red during autumn.
The abundant, huge flower panicles are creamy-white at first, turning to rosy-pink.
Hardy zones 5+.

'Gatsby Pink'
Vigorous and dense in habit, reaching up to 10 x 10 feet.
The deep green foliage turns to deep red during autumn.
The abundant, huge flower panicles are pure white at first, turning to mid-pink.
Hardy zones 5+.

'Gloster Form'
Vigorous, exceptionally heat tolerant form originating in Louisiana.

'Harmony'
Reaches up to 12 x 10 feet with deep green foliage which turns to deep red during autumn.
The extremely double, large, white flowers are borne in huge, dense panicles, up to 12 x 8 inches, that weigh up to a pound each. The heavy flower panicles that weigh down the branches eventually deepen to pale pink.
Hardy zones 5 to 9

* photo taken by Milan Havlis, owner of central Europe's premier plant nursery


'Ice Crystal'
Reaches up to 6 x 6 feet, with attractive deeply-cut foliage that turns to deep red during autumn.
The flowers appear during early summer and persist into early autumn. They start out white but then deepen to pink.
Hardy zones 5 to 8.

* photo taken on Aug 5 2017 @ Brookside Gardens, Wheaton, MD


'Jetstream'
A moderate growing, sturdy-branched, dense, compact, medium-sized shrub, reaching up to 6 x 5 feet in size.
The glossy deep green foliage turns to intense orange-red during autumn. The foliage is resistant to leaf spot.
The flowers on upright, pyramidal panicles are white turning to deep pink.
Hardy zones 5 to 8.

* photo taken on Oct 5 2015 in Columbia, MD


'Little Honey' ( Golden Oakleaf Hydrangea )
A golden-yellow foliaged sport of "Peewee', reaching up to 4 x 4 feet in 8 years, eventually slightly more. The foliage turns intense red in autumn.
The white flowers are borne on pyramidal panicles up to 5 inches in length.
The attractive stems are reddish-brown.
Hardy zones 5 to 9.

* photo taken on June 1 2014 @ Maryland Horticulturalist Society garden tour

* photos taken on Apr 23 2017 @ Brookside Gardens, Wheaton, MD

* photo taken on Aug 5 2017 @ Brookside Gardens, Wheaton, MD


'Munchkin'
A true dwarf, smaller in all its parts and only reaching up to 3 x 4.5 feet in 5 years, eventually up to 5 x 6 feet. It is dense and compact in habit.
The deep green foliage turns intense deep red during autumn.
The flowers are borne on upright clusters, up to 6.5 inches long, during early summer. They are white at first, later deepening to mid-pink.

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

* photo taken on Apr 23 2017 @ Brookside Gardens, Wheaton, MD


'Pee Wee'
Dwarf and compact in habit, reaching up to 3 feet in 6 years; 5 x 5 feet in 10 years, may eventually grow broader to about 6 x 7 feet. Some records include: fastest growth rate - 2 feet. It was originally discovered in the sand hills of Alabama.
The leaves are up to 8 x 7 ( rarely 14 x 15 ) inches in size. The deep green foliage turns to rose-red to purple during late autumn.
The white flowers are borne in clusters up to 7 ( rarely 12 ) inches in length.

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

* photo taken on July 11 2014 @ Smithsonian Inst., Washington, DC


'Queen of Hearts'
Dense and rounded, reaching up to 7 x 9 feet.
The mid-green foliage turns to deep red during autumn.
The large, pyramidal, upright flower panicles, up to 9 inches long, are white ( aging to pink ). The flowers appear about a week later than most other cultivars.
Hardy zones 5 to 8.

* photo taken on May 21 2017 in Columbia, MD


'Ruby Slippers'
Dense and dwarf in habit, reaching only around 3.5 x 5 feet in 5 years, 4 x 6.5 feet in 10 years, eventually to 6 x 7 feet.
The sturdy, upright flower clusters, up to 10 inches in length, are pale pink, later deepening to deep rosy-red.
The foliage is deep green, turning to deep red during autumn. The foliage is dense due to the short internodes between the leaves.
Hardy zones 5 to 8. It is very resistant to root rot.

* photo taken on July 9 2015 in Columbia, MD

* photos taken on Oct 16 2015 in Columbia, MD

* photo taken on Oct 26 2015 in Columbia, MD

* photos taken on June 3 2017 in Columbia, MD

* photos taken on June 14 2017 in Howard Co., MD

* photos taken on Aug 5 2017 @ Brookside Gardens, Wheaton, MD

* photo taken on Aug 5 2017 @ Brookside Gardens, Wheaton, MD

* photo taken on Nov 3 2017 in Howard Co., MD

* photo taken on June 5 2018 in Columbia, MD

* photos taken on June 20 2018 in Columbia, MD

* photo taken on Nov 9 2018 in Howard Co., MD


'Semmes Beauty'
Very vigorous ( to 10 x 12 feet or more ) and exceptionally heat tolerant form with large, white flower inflorescences.

* photos taken on June 21 2018 in Columbia, MD


'Sikes Dwarf'
A dwarf bushy form only reaching up to 3 x 4 feet in 10 years and eventually to 4 x 6 feet.
The leaves are very large, up to 12 inches wide. The deep green foliage turns rich burgundy-red in autumn.
The white ( later fading to pink ) flowers are borne in clusters up to 12 inches in length.
Hardy zones 5 to 8.

* photo taken on July 17 2010 @ Morris Arboretum, Philly, PA

* photo taken on Aug 25 2011 @ Scott Arboretum, Swarthmore, PA

* photo taken on June 1 2012 in Columbia, MD * photos taken on June 8 2012 in Columbia, MD

* photos taken on June 12 2013 in Columbia, MD

* photo taken on June 10 2013 in Columbia, MD

* photo taken on June 18 2013 in Columbia, MD

* photo taken on Sep 29 2013 in Laurel, MD

* photo taken on Nov 22 2013 in Columbia, MD

* photos taken on June 9 2015 in Columbia, MD

* photos taken on July 9 2016 in Columbia, MD

* photos taken on May 16 2017 in Columbia, MD

* photo taken on Oct 3 2017 in Columbia, MD

* photos taken on Oct 31 2018 @ Howard Comm College, Columbia, MD

* photo taken on Nov 3 2018 in Columbia, MD


'Snowflake'
Vigorous growing, reaching up to 8 x 8 feet in 10 years and known to eventually reach over 10 x 12 feet.
The very showy, double white flowers are borne in panicles up to 15 inches in length. The older flowers turn to pink.

* photo taken on June 22 2014 in Clarksville, MD

* photo taken on June 20 2015 in Columbia, MD

* photos taken on Aug 5 2017 @ Brookside Gardens, Wheaton, MD


'Snow Queen'
Compact in habit, reaching up to 10 x 14 ( rarely over 6 ) feet. Some records include: 10 years - 6 x 6 feet.
The deep green leaves, up to 8 inches in length, turn spectacular deep red-purple during fall.
The sterile white flowers are borne in huge dense clusters, up to 14 inches in length, on strong stems that do not flop. The flowers persist all summer, deepening to pink by late summer then drying to tan in early autumn.
Thrives in sun or shade and tolerates down to -22 F or colder.

* photos taken on June 7 2011 in Columbia, MD

* photo taken on Aug 15 2012 in Columbia, MD

* photos taken on Dec 14 2012 in Columbia, MD

* photos taken on June 15 2014 in Columbia, MD

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


* photo taken on Oct 23 2014 @ Smithsonian Inst., Wash. DC

* photos taken on June 24 2015 in Columbia, MD

* photo taken on Aug 24 2015 in Columbia, MD

* photo taken on Sep 8 2015 in Columbia, MD

* photo taken on Oct 5 2015 in Columbia, MD

* photos taken on Dec 6 2015 in Columbia, MD

* photo taken on June 24 2016 in Columbia, MD

* photo taken on Apr 12 2017 in Columbia, MD

* photos taken on June 9 2017 in Columbia, MD

* photo taken on June 25 2017 in Columbia, MD

* photo taken on May 25 2018 in Columbia, MD

* photos taken on June 5 2018 in Columbia, MD

* photos taken on Oct 31 2018 @ Howard Comm College, Columbia, MD