Over 75 species of flowering plants in the genus Hydrangea (/hadrendi/), sometimes known as Hortensia or hydrangea, are indigenous to Asia and the Americas. In eastern Asia, especially in China, Korea, and Japan, there is by far the greatest variety of species. The majority are 13 m (3 ft 3 in. or 9 ft 10 in.) tall shrubs, although some are small trees and some have lianas that can grow up trees to heights of 30 m (100 ft). Although the frequently cultivated temperate species are all deciduous, they can also be evergreen. [3]
In reference to the design of its seed capsules, the name “hydrangea” is derived from the Greek and meaning “water vessel” (from water + or vessel).
[4] The former name, Hortensia, is a Latinized version of the French given name Hortense and was given in honor of Nicole-Reine Hortense Lepaute, a French astronomer and mathematician.
[5] This statement is refuted on page 88 of Nicole-Reine Hortense Lepaute’s biography, citation 10, where it is stated: “Larousse considers this an injustice and remarks that it has caused many people to believe falsely that “Hortensia” was one of her names; it was likely only the Latin adjective from “hortus.”
Hydrangeas are they indigenous to North America?
Two hydrangea species, Hydrangea quercifolia (oakleaf hydrangea) and Hydrangea arborescens (smooth hydrangea), both woody shrubs, are native to the North American continent and have been cultivated for use in landscaping on a commercial scale. Other hydrangea species have been used in landscaping, and a related, the loosely clinging vine Decumera barbara, appears to be fighting for acceptance as a garden plant. However, the oakleaf and smooth hydrangeas are the most prevalent North American species in the nursery industry. Hydrangea arborescens, known by its cultivars ‘Grandiflora’ (also known as ‘Hills-of-Snow’ hydrangea in older gardening literature), ‘Sterile,’ and, more recently, ‘White Dome’ (also known as ‘Dardom’) and ‘Annabelle’ (and her enormous-flowering cousins like Incrediball), is likely the North American hydrangea species that has been used in general gardens
Both the smooth and oakleaf varieties are native to damp woodlands with a variety of hardwood trees, and they both do well in soils that retain moisture and are rich in organic matter (naturally, that would be decomposing leaf and twig litter found on the forest floor). However, the inflorescence form (creamy white cones of flowers on H. quercifolia that age to red and brown, and creamy white spherical dome or ball-shaped that age to silvery-tan on H. arborescens) and foliage pattern of these shrubs differ in appearance (thick, large oakleaf-shaped foliage on H. quercifolia, and thin, flat green leavesthat are prone to wilting in summer heaton H. arborescens). This last characteristic determines when and how the plants can be pruned without damaging the flowering effect, as well as whether winter cold and late frosts might reduce the flower display. These two species also differ in flowering time (early or midsummer), and when they develop their flower buds. The early American botanist John Bartram first identified the Hydrangea quercifolia, which is native to a smaller area of the southeastern states and is winter hardy down to -15F. However, because it develops new flower buds the year before each flowering season, it may not reliably flower in the coldest climates (USDA zone 5), despite having lush and beautiful foliage. On the other hand, H. arborescens is more dependable for floral display because its flower buds form on new growth, that is, on a mass of stems that emerge (typically suckering from close to the ground) the current season. It is a native of moist rocky cliffs and seeps from New England to Missouri as well as southeastern states.
H. arborescens is perhaps the easiest of the native North American hydrangeas to grow across a greater area of the temperate zone since you can trim it to the ground each spring and expect vigorous new growth with a nice flower show that summer. Additionally, it can withstand moister soils that are heavier in clay or less “well-drained” and is winter-hardy in one or two colder zones (often zone 4, however other sources claim H. arborescens can thrive in the warmest regions of zone 3!). H. quercifolia, on the other hand, is a more sophisticated plant whose leaves turn a deep burgundy and orange hue in the fall. Its coarse and rocky structure and peeling coppery-tan bark also lend interest to the landscape in the winter, making it showy beyond its summer flowering season. While the oakleaf cultivars make excellent specimen plants and tolerate slightly drier soil conditions if shaded from the hottest sun of the day, the smooth hydrangea tends to wilt easily and is best used in moister sites, especially if it is to bake in sun during the hottest time. Its suckering habit also lends itself to massing and use as a summer hedge.
Hydrangeas are one of the most sought-after shrubs in North America! Known for their nostalgia as well as their modern design appeal, hydrangeas are a perfect fit in the landscape, a container garden, or used as cut flowers.
Because some kinds of hydrangea are particularly water-hungry, the word “hydrangea” is derived from the Greek words for “water” and “jar” (hydros and angos). The hydrangea is a native of both Asia and the Americas, although it was initially domesticated in Japan.
Where do hydrangeas naturally flourish?
Eastern Asia, eastern North America, and western Central and South America are all regions where hydrangeas naturally thrive. The smooth hydrangea (H. arborescens) is indigenous to the Appalachian Mountains in the United States.
Do hydrangeas grow naturally in England?
Shrubs called hydrangeas produce white, pink, or blue flowers throughout the summer and fall. Depending on the soil’s makeup, their enormous mop-headed blossoms can change color. While alkaline soil turns the blossoms pink, acidic soil turns them violet or blue.
The height of a hydrangea can vary from one foot to ten feet. Light green stems eventually turn dark and woody with age. The length of the dark-green leaves ranges from four to ten inches. Flowers come in clusters the size of apples, each with four petals, and they might be white, lilac, pink, or blue.
The shrub is indigenous to North and South America as well as East Asia. Although hydrangeas native to temperate regions are deciduous, it can be either an evergreen or deciduous plant. In Britain, hydrangeas are typically imported from Japan to be marketed and farmed there.
Hydrangeas bloom in the garden from late summer to early fall. From early spring to late autumn, the blooms are offered for sale.
The Hydrangeaceae genus of flowering shrubs and plants, which is where the bushes are from, is a member of the Cornales order. When present, the petals of these woody plants come in multiples of four.
A shaded area with well-drained soil is ideal for hydrangeas. They dislike the direct sun and the chilly easterly breezes. Before planting, it’s a good idea to incorporate some compost, leaf mold, or manure into the soil. With hydrangeas, the only trimming required is the removal of a wasted flower head, which should only be done in the spring and never in the fall.
Treatment of kidney and bladder problems is one of its primary medical applications. Peeling off the bark allows for the treatment of burns, wounds, and bruises.
Do hydrangeas grow in native areas?
The American hydrangea, sometimes known as the smooth hydrangea, is a deciduous shrub that reaches a height of 5 feet (1.5 meters). The small populations in New England, which are native to most of eastern North America, are regarded as introduced because they are primarily found in disturbed environments. In contrast to showier cultivated hydrangeas, its clusters of somewhat little white blooms are modest but bloom for a long time. Additionally, the plants can survive in rain gardens, are helpful for erosion management, and are tolerant of poor soil conditions.
Do hydrangeas grow naturally in Japan?
The hydrangea is indigenous to Japan, but numerous western variations have also been developed outside. You can view “Hime-ajisai,” one of the extremely few rare ancient Japanese hydrangea species, at Meigetsuin Temple, also known as Ajisaidera (the hydrangea temple).
Are hydrangeas native to New Zealand?
Glyn’s hydrangea plants were primarily imported from France, Britain, and the US. Here in New Zealand, he would also frequently look through the gardens of abandoned homesteads in quest of older, hardier types.
His primary seed suppliers were China, Korea, and Taiwan in Asia. Although I’ve done some breeding and selection, he claims that existing plants are difficult to surpass. That is why we brought in types that weren’t available in New Zealand, such “Merveille Sanguine,” which I called “Bloody Marvellous” by flipping the two words around.
Dichroa versicolor, often known as the evergreen hydrangea and a close relative of the hydrangea (recently recognized as a hybrid of the Vietnamese species Dichroa febrifuga and Hydrangea macrophylla), is the subject of his most recent breeding work. “We found that hydrangea and dichroa naturally cross-pollinate. Intergeneric hybrids are very uncommon. Pears often do not breed with apples, only other pears! We chose and gave the names “Summer Skies” and “Cambridge Blue” to several of our seedlings, which Woodleigh sells. Both are perennial.”
Plant family and variety: hydrangea The Hydrangea genus has about 75 species, the most of which are endemic to south and east Asian nations like Japan, China, and Korea. A few species are also found in the US.
John Bartram, a farmer and plant hunter, brought Hydrangea arborescens from North America to Europe in 1730, when it became the first hydrangea to grow in gardens there. The Georgia-native oak-leaved hydrangea (Hydrangea quercifolia), was next discovered by him and his son William.
In the same period, a doctor working for the Dutch East India Company named Engelbert Kaempfer discovered mophead and lacecap hydrangeas in Japan. But because Japan was a closed society at the time, it was very impossible to take any botanical samples from there. Charles Maries, an English botanist and plant collector, wasn’t able to bring samples of Hydrangea macrophylla and Hydrangea serrata to Europe until more than 150 years later.
The majority of ornamental hydrangeas that we cultivate now are cultivars or hybrids of species that are native to the US, China, and Japan. The most prevalent cultivar, with over 600 recognized varieties of either lacecap or mophead kinds, is Hydrangea macrophylla.
The flowerheads of Hydrangea macrophylla are all lacecaps in the wild. According to Glyn, breeders have continued to refine a naturally occurring “sport” from which mopheads descended.
Both lacecaps and mopheads are hardy, sun- and shade-tolerant plants, some of which thrive in coastal environments. In fact, hydrangea mopheads have become a native species on some islands in the Hauraki Gulf, particularly in the bays on Kawau Island that face south.
Along with Hydrangea serrata, one of Glyn’s favorites, other well-liked Asian hydrangeas include Hydrangea paniculata, renowned for its large, snow-white flowerheads, simple maintenance, and cold tolerance. This latter species, which naturally grows in Japan and Korea’s forested and mountainous regions, is less resistant of heat, wind, and drought than Hydrangea macrophylla.
Hydrangea aspera subsp. villosa is a big shrub that can reach heights of over 3 meters and is occasionally referred to as the “tree hydrangea.” It produces stunning lacecap flowerheads with mauve or blue centers and outside edges that are either white or pink.
The deciduous climbing Hydrangea anomala subsp. petiolaris, which inhabits the same regions as Hydrangea serrata, is a less frequent Asian species. Early summer brings lacecap blossoms to this self-clinging vine.
Due to their extreme cold hardiness, the two North American varieties Hydrangea arborescens and Hydrangea quercifolia are highly common in areas with frequent frosts. The majority of Hydrangea arborescens varieties are drought tolerant, produce huge white flowerheads, and are content in sun or shade. The different varieties of this drought-tolerant species grow well in shade or sunlight, and the creamy white blooms of oak-leaved Hydrangea quercifolia are cone-shaped (more so in cooler regions). Oak-leaved hydrangeas have pink-tinged flowers and burgundy and crimson leaves that change in the fall.
Diseases & issues with hydrangeas They don’t have many, and gardeners like hydrangeas because of their laid-back attitude. According to Janica Amoore, “Fungal diseases like botrytis and mildews can be a problem in moist or humid areas, especially when plants are under stress.”
“These can be managed with the aid of good cleanliness and well-maintained plants. The species of arborescens, aspera, paniculata, and quercifolia that are susceptible to root rots, most likely phytophthora, which is promoted by moist soil and humid conditions, “Adds she. Avoiding excessive watering or waterlogged soils, using trichoderma (a protective fungal), and minimizing root disturbance when planting will also assist.
Trim back to healthy wood above a bud if the Hydrangea macrophylla variety’s buds have been destroyed or damaged by frost. In order to develop cultivars of this plant in colder climates, gardeners need opt for younger remontant variants that may sprout new stalks during the summer from underneath iced buds.
flower arrangement There are three varieties of hydrangea flowers: mopheads, which have a globe form, flat lacecap clusters, and panicles, which have a cone shape (particularly Hydrangea paniculata and Hydrangea quercifolia).
All of these result in a mixture of tiny, inconsequential real flowers and bigger modified bracts or sepals of what Glyn calls “fake” flowers. These false flowers, which are sterile and colorful, draw pollinating insects to the flowerheads, which then pollinate the real flowers.
The vibrant outer sepals of the blossoms progressively lose their color as they ripen. This is most evident in cultivated hydrangeas, especially mopheads, which only have a few genuine flowers, explaining why their flowerheads can last for up to six months.
How the rainbow-colored hydrangeas change color Different cultivars and hybrids of Hydrangea macrophylla can vary the color of their blooms depending on the acidity of the soil they are in, unlike other hydrangeas (or any other plant, for that matter). Acidic soils cause flowerheads to be blue. Your blooms will be pink or crimson if your soil is more alkaline.
However, hydrangea blossoms are not only turned blue by acidity, but also by the presence of aluminum ions in the soil. This is why regularly adding lime to soil will turn pink hydrangeas blue, while regularly adding aluminum sulphate to soil will have the reverse effect.
Glyn and other experts, however, challenge the value of this method, contending that it is much preferable to cooperate with nature as opposed to fighting it by picking cultivars that will provide the greatest color for your soil.
Do hydrangeas grow naturally in Georgia?
The oakleaf hydrangea, Hydrangea quercifolia, a lovely native of Georgia that is consistently well-liked (and for good cause), has leaves that resemble oak leaves. Large cones of white flowers appear in June or earlier (depending on the year) and last for weeks before turning frequently a tint of rose as they age. A particular plus are the scarlet and burgundy-hued autumn leaves and the cinnamon-peeling bark in the winter. Although oakleaf hydrangeas are a common species found throughout North Georgia, the double-flowered cultivar “Snowflake” was introduced and planted there.
On the oakleaf hydrangea’s second year of growth, flowers appear. However, until plants grow too big for the region where they are planted, pruning shouldn’t be a concern. Try one of the smaller cultivars, such as “Pee Wee” or “Sikes Dwarf,” if you have a small yard. Compared to species that can easily reach heights of 8 to 10 feet, both of them grow more between the dimensions of 2 and 4 feet tall and wide.