It can tolerate harsh winters and is a good substitute for Mophead Hydrangeas or Hydrangea macrophylla. 5, and plants grown in. quercifolia) or climbing hydrangea (H. After a few days, shake the bag to get the seeds. アジサイ属 （あじさいぞく、学名: Hydrangea ）は、 被子植物門 ミズキ目 の1属。. Martha Stewart recently shared her cut hydrangea care tips with her 4. macrophylla alone), hydrangeas find their way into most gardens in temperate climates. Long used as a common name for the plant, the name 'hortensia' also indicates a specific selection of bigleaf hydrangea, which goes by the scientific name Hydrangea macrophylla 'Hortensia. Planting in Dry, Poorly-Drained Soil. There are a few reasons why yellow leaves will plague your plants, and most of them are fairly easily fixed if you address them early enough. Flower Color: Pink, red, yellow, orange, white. Showy, the creamy-white florets become pink-tinged as fall approaches. Watch for pests such as spider mites, aphids, and scale. 5 and higher). Place the cut end in a pot filled with moist potting mix and firm soil around the cutting. Florists control the flower color of potted hydrangeas by controlling the soil mix. Held upright on sturdy stems, they are well distributed, making a very attractive plant and display. In my opinion, the number one reason your hydrangea isn’t blooming is because you have started pruning at the wrong time. Fire Light ® Panicle hydrangea . Daylilies. Bobo ® H. Many other, closely related hydrangea species are likewise known for their bountiful, showy, long. 3. petiolaris is the most common climbing hydrangea, with large white lacecap flowers in early summer and heart-shaped, dark green foliage that turns butter yellow in autumn. On soils with a higher pH. Hydrangea Fertilizer for Proper Hydrangea Care and Feeding. First, you’ll need to find the perfect planting location. Remove the plant from its nursery pot and place it in the container. Next, carefully strip off most of the leaves, leaving a pair at the tip of the cutting. Plants reach 3 to 4 feet high. Mulch helps the soil and roots to retain moisture. The first defining factor in Hydrangea color is the species. Hydrangea seeds need to be surface sown. A south-facing window is ideal. Be sure to consider the soil. across (12 cm), densely packed with intense rose-pink, violet, or blue florets, depending on the soil pH. Here are the common. Add a layer of potting mix and compost, enough so that when you place the hydrangea in the pot, the top of the root ball sits slightly below the rim of the container. Hydrangeas, like so many other flowering plants, need phosphorus in order to properly bloom and flower. BOBO ®Panicle. The Royal. 2. Fire Light ® - full-sized (6-8’ tall and wide), full mophead flowers turn red. It should be deep enough so that where the plant meets the soil is flush to the ground. Mature Size: Varies, 6-18 in. Pick Remaining Flowers. Wrap up warm. Annabelle hydrangea is propagated with softwood cuttings taken in spring. Many new Hydrangea species, such as the Endless Summer and Everlasting series, rebloom throughout the summer and fall. - Flowers go from white to rich, saturated tones of pink and red as they age. Hydrangea flowers: ‘Nikko Blue’ flowers are spherical clusters of spectacular blue or pink florets. Hydrangeas in general prefer a rich, well-drained soil. Since garden hydrangeas are deciduous shrubs, they. アジサイ を含み、広義にはこの属をアジサイと総称する [2] 。. It is compact and dwarf in habit, and the flowers cover every inch of the plant right down to the ground. Hydrangea macrophylla is one of the most popular species of hydrangea. For paniculata hydrangeas, a slightly acidic with a pH between 6. Dreamin' is beautiful and versatile, looking great in both the garden or planted in a decorative container. 10. Hydracyanosides, a group of toxic cyanogenic glycosides, have been isolated from the leaves of Hydrangea macrophylla. To propagate softwood cuttings, follow these steps (as long as it's not a trademarked cultivar): Take a 5-inch stem cutting and remove the lower leaves. The horizontal branching pattern can create interesting, sculptural effects. 5 will tend to result in blue hydrangea blooms, while above 6. In acid soils, the flowers will be blue, but in alkaline soils, the flowers will be pink. Once coated, however, place the stem into a clear glass filled with water, ensuring that the leaves are above the water level. 1. This hydrangea is more tolerant of full sun than other hydrangea species but prefers morning sun and afternoon shade. Some like full sun and others prefer partial sun or even full shade. This plant is easy to change color and has beautiful sky-blue flowers with green centers. Chances are that the plant you received is of the cultivated deciduous shrub variant. 'Blushing Bride' looks. Add soil around the root system and tamp it down as you go. The hydrangea Runaway Bride has received accolades as the plant of the year for 2018 at the RHS Flower Show. Dig a wide shallow hole about twice as wide as the planter pot. Held on thick stems, the blossoms emerge creamy-white and develop bright pink and red tones as the season progresses. This is best achieved by rain and supplemental irrigation. Its flowers are produced on old wood from last. Like most potted plants, watering will depend on how fast the soil dries out and if it's in bloom or not. This is more common in western climates, like in the mountains west of the United States. ‘Incrediball’ is a hybrid of ‘Annabelle’ and other Hydrangea arborescens varieties with the goal of stronger stems. Incredibly hardy, even in the harshest winters, this US native hydrangea is perfect for mixed borders, small gardens, and patio containers. The compact habit makes it suitable for both container gardening and. The 3–5’ shrubs produce a blizzard of greenish blooms that turn creamy white before shading to dusky pink for fall, and they don’t degrade in high temperatures. Scrape some of the bark off of the branch, exposing some growth points. If the infestation persists, apply horticultural oil. Dip in suitable cutting gel, place in a pot of propagating mix, and keep moist in a warm shady spot. The cultivar name is ‘Abetwo . Native and Introduced. Others are happy in dappled sunlight to. The 'White Dome' hydrangea is an upright, rounded shrub that bears fluffy clusters of creamy-white flowers. Water. Panicle hydrangea blooms on new wood; it accepts—and even prefers—fairly heavy pruning. Strawberry Vanilla (Hydrangea paniculata 'Renhy'), the cultivar that is the most similar but larger than Strawberry Sundae. macrophylla Cityline® Paris is one of the Cityline® series of dwarf plants with smaller-stature flowers for Zones 5 to 9. To make your Hydrangeas blue, you first need to test your soil to determine the pH level. Matthew Benson. Do not over water, or over fertilize, but be attentive. long (12 cm), in late summer to fall. Low maintenance and easy to grow, this hardy hydrangea can be used as a hedge,. Here is how to increase your collection. Changing flower color 6. You will be glad you did when spring comes and with it, beautiful flowers and foliage. Begonias come in many different colors and love a shady spot, making them the perfect companion for hydrangeas. Grows with an upright, rounded habit to 3-4 ft. They are known for their exquisite flowering display, with many offering a season of beautiful blooms that remain attractive into winter. Hydrangea anomala looks like a plant from a different family altogether, but is a member of the hydrangea family. Flowers of the Hydrangea Family have 4 to numerous stamens and pistils with 4 (up to 10) joined sepals and 4 to 5 (rarely 10) separate petals. The contrasting color which it holds all season long marries well with the hydrangea and grows happily in similar conditions,’ says Ballato. Annabelle is a favorite with bees and butterflies. Place your hydrangea pot in a sunny spot. 01 of 15. Hydrangea, (genus Hydrangea), any of a genus of erect or climbing woody shrubs, in the family Hydrangeaceae, native to the Western Hemisphere and eastern Asia. This fast-growing hydrangea suits propagation from cuttings —root or stem. Specifically, hydrangeas prefer bright, indirect sunlight for several hours daily. Best in light shade, but tolerates sun if the soil is not too dry. Roughly translated, it means water vessel—an accurate description of hydrangeas’ thirst for water. How to prune mophead and lacecap hydrangeas. tall (90-120 cm) and 24-36 in. ‘The rounded shrub has spotted, variegated leaves and produces bright red berries in fall,’ explains Fiona. While the hydrangeas you likely know and love best are blooming shrubs like bigleaf and panicle, this hydrangea type takes the form of a deciduous vine. Hydrangeas are an easy-to-care-for shrub that can successfully grow in zones 3 to 9. Dig a hole two to three times as wide as the pot but at the same depth. Annabelle hydrangeas are more cold hardy than mophead or oakleaf hydrangeas, can still grow in zone 3. You can use pruning shears or a garden knife to take the cutting. As with other mophead or French hydrangea varieties, Summer Crush hydrangea require morning sun and afternoon shade. Cityline Paris. Hydrangea paniculata ‘Bombshell’ – This mounding shrub grows 2 to 3 feet high and bears white flowers with pink centers. Hydrangea macrophylla basics. Hydrangea L. Yellowing leaves is a common issue with hydrangea gardeners. Choose a planting location that receives at least three to six hours of sunlight each day. Hydrangea serrata is native to the mountains of Korea and Japan, making it an excellent woodland plant or even a good option for a shaded rock. Light. They produce white blooms and quickly climb to a height of 80 feet (24 m. The blooms are cone-shaped and can be single or double. • Plant 1-2″ above ground soil level, backfill hole with soil. They don’t form a central taproot like rhododendrons and shrubs. Transplant to the location where you want the hydrangea to grow. Perhaps the best known of the hydrangeas is the mophead style of Hydrangea macrophylla. Hydrangea (Hydrangea macrophylla) What is a hydrangea? Hydrangeas are either deciduous or evergreen shrubs, trees, or lianas native to the Americas and Asia. To bloom, most hydrangeas require at least three to four hours of direct sunlight per day, ideally in the early morning or dappled sunlight in the afternoon. How to Propagate Wedding Gown Hydrangea. The hydrangea color chart below shows the estimated flower color as it varies by soil pH level. Not only are these plants much hardier, growing well from zone 3 to zone 8, they will grow taller, with some reaching as much as 15 feet, but most being around 6 feet tall. Call your doctor at once if you have: numbness, tingling, or burning pain in your hands or feet; skin numbness or purple. Shake them off, cut the bottom of the stem, and place them in water with flower food. Depending upon the cultivar, of which there are many, the plant produces ball-shaped flower clusters ("mop-heads") or flat clusters of small flowers surrounded by a ring of more prominent. For blue blooms, the soil needs to be acidic, with a pH level at or below 5. Dig the planting hole twice as wide and to the same depth as the root-ball. Protect your in-ground hydrangea in winter by making a frame around the plant using stakes. The flowers start out white, cream, or green and slowly turn pink, drying and remaining on the plant long after the leaves have fallen. With the proper growing conditions and care for hydrangeas, they can be grown in a wide range of regions. Dig a hole as deep as the root ball and 2-3 times as wide. 9 Gorgeous Hydrangea Types. Native to Asia, Hydrangea anomala subsp. "Also, removing broken and damaged stems. Though flowering bushes in bright shades of pink, blue, and purple are most common, newly introduced varieties offer a wider range of color and. Big-leaf hydrangeas, Hydrangea macrophyla: These are the most common species and include the popular mopheads and lacecaps in wide-ranging colors of blue, violet, pink, purple, red and white. serrata, will react to the pH of your soil as well as the level of aluminum in your soil by changing color. Hydrangeas are versatile shrubs that thrive in sandy coastal soils, shady woodland sites, and almost everything in between. Opening creamy white, the florets turn deep pink as the season progresses. How to Prune An Endless Summer Hydrangea. Others form their flower buds on new wood. Oakleaf hydrangea (Hydrangea quercifolia) is a flowering deciduous shrub with large clusters of flowers on sturdy stems and distinctive leaves with lobes like those of an oak tree (quercifolia means "oakleaf" in Latin). Characteristics: These popular shrubs bloom from mid-summer to early fall. Fungal leaf spots and powdery mildew are among the most common hydrangea diseases. How to Get More Panicle Hydrangea Flowers: Plant panicle hydrangeas in all-day sun or afternoon sun. ’ 8. There are a number of easy techniques for growing a hydrangea from cuttings, including: Take 10cm soft-tip cuttings in October/November. Prune in later winter or early. Top reasons to choose Fire Light Tidbit hydrangea for your garden or landscape: - The smallest panicle hydrangea ever - just 2-3'/. Whereas soils that are above 6. Buy Online. Oakleaf hydrangea (Hydrangea quercifolia) Oakleaf hydrangea flowers Photo: Ginny Williams The oakleaf hydrangea is a beautiful native of the southeastern United States and is a favorite of many gardeners. Most types grow in shrub form, however, one is a vine and another is pruned to assume a tree-like appearance. Adding early. Boost your cut hydrangeas' flower heads. For pink flowers, the plants need neutral to alkaline soils (pH 6. Considered one of the best lacecaps, Hydrangea macrophylla 'Lanarth White' shows off large clusters of white florets faintly brushed with blue or pink. Autumn is the best time for hydrangea planting. 2. Reapply annually. Next, carefully strip off most of the leaves, leaving a pair at the tip of the cutting. Hills-of-Snow hydrangea (Hydrangea arborescens ‘Grandiflora’): Commonly used cultivar is admired for its large, clean, white flower clusters. Several. Glenn. Climbing Hydrangea – A vining variety of the plant, climbing hydrangeas can grow to be 50 to. Then place the hydrangea in. hydrangea. Incrediball is an improved version of the popular Annabelle hydrangea, with strong, sturdy stems that do not flop over and extra-large blooms. The more shade the bush receives, the shorter it may remain—in extreme cases, the plant may stay short enough to resemble a large perennial in size. Deservedly popular, Hydrangea paniculata 'Grandiflora' or 'PeeGee' is a large, upright, deciduous shrub or small tree with conical flower panicles, up to 18 in. Take a stem cutting around 5cm long that has a plump bud, and treat as above. Brown stems have started to harden off and can be a little tougher to root compared to the green ones. Mix in a slow-release fertilizer. Plant Size: 4-5 feet. wide (60-90 cm). See moreWhat Are Hydrangeas? Blooming in spring and summer, the hydrangea is considered a shrub. If you wish to propagate your hydrangea tree, you should cut off a 6-inch, new growth from the tree in the fall. Matthew Benson. This low-maintenance flowering plant is a popular perennial that adds a pop of color to any flower bed or garden. Another climbing hydrangea is the Japanese false-hydrangea vine, which will grow 15 to 30 feet high. With immense flower heads, hydrangeas flaunt an old-fashioned charm from summer to fall. Few blooms provide more showy appeal than hydrangea: long-blooming. Be careful not to cut the roots of the cutting or the mother plant with your spade. 0 and higher). Held on sturdy, strong stems, the blossoms emerge creamy-white and age to a vivid raspberry pink as the season progresses. 8. Fire Light Tidbit ® Panicle Hydrangea Hydrangea paniculata. Planting. Their large size and vibrant flowers combine to create impressive floral displays. Not too long ago, Hydrangea serrata was Hydrangea macrophylla subsp. With a neat and compact habit, it is perfect for a lightly shaded border or patio pot. As an added bonus, they change. After you plant the hydrangea into the amended soil, be sure to add a thick layer of mulch. Hinkley discovered the double-flowered Hydrangea serrata, or mountain hydrangea, on a steep slope in South Korea, eventually named it Chiri-san Sue and introduced it to horticulture in 2000. Hydrangea Varieties to Grow as Houseplants. Make sure to keep your arrangement out of direct sunlight. Water your new planting thoroughly. 3½' tall and 5' wide. Leave about eight inches open at the top of the pot, then mix some high-phosphorus fertilizer into the soil. 5 or less and aluminium is freely available then the flowers take on a lovely shade of blue. Hydrangea. Water the area thoroughly. Held on strong dark red stems, the blossoms open creamy white, change to pale pink, and then deep pink and lilac as the season. Tease the roots with your fingers or a garden fork to loosen them and encourage outward growth. Hydrangea L. These shrubs are native to the cooler regions of Asia. First, don't water your hydrangeas with sprinklers. 5 will favor more of a pink color. Most French hydrangeas can be spaced 3 to 4 feet apart, but check the tag to see how wide your selection will grow. It yields white flowers and has excellent frost and heat tolerance. Place the mix in the container so that the root ball of the hydrangea fits comfortably and 2–3 inches are left above the top of the root ball for mulch. Carefully remove the plant from the container, taking care not to damage the roots. Nikko blue hydrangeas grow to be around 6 feet tall, with a similar spread. You want to cut down to just above the fresh. Premix the soil with organic material before you place your hydrangea shrub into the pot. Starting at $21. Some still consider it to be a subspecies. Perfect for small gardens, Hydrangea paniculata Little Lime® is a compact, bushy, deciduous shrub boasting a profusion of large panicles, 5 in. Fungicides aren’t effective for treating rust. ‘Another very popular companion plant is Japanese forest grass. It will grow only 3 to 4 feet wide and 4 to 5 feet tall, but what it lacks in size it makes up for in vibrant, showy blooms throughout the season. hydrant: [noun] a discharge pipe with a valve and spout at which water may be drawn from a water main (as for fighting fires) — called also#R##N# fireplug. Hydrangeas are an easy-to-care-for shrub that can successfully grow in zones 3 to 9. The new roots will form at the nodes where the leaves have been removed. The blooms age to an array of pink, red, and burgundy which persists through frost for months. Shelter from cold, drying winds. 3½' tall and 5' wide. Hydrangea paniculata ‘Phantom’. Hydrangea paniculata is a sun-loving plant native to the cool regions of Asia that produces large, cone-shaped flowers. For the first option, remove one third to one half of each shoot, cutting ¼ inch above a pair of leaf buds each time. Oakleafs are native to the United States, unlike their famous cousins with pink and blue “mophead” flowers, and are tough, cold hardy, and drought resistant. Hydrea may cause serious side effects. Noted for its spectacular flower heads, Hydrangea paniculata 'Phantom' features immense, dense conical flowers, up to 15 in. Despite the common name “French Hydrangea,” this species is native to Japan. Thoroughly water the shrub a few times a week, or whenever the top inch of soil begins to dry out. Using a pair of clean and sharp pruning shears, make a clean cut just below a leaf node (the point where a leaf attaches to a stem). There is only one generation of insects per year, but it is important to get them under control because they suck the sap out of the plant and weaken it. Hydrangea paniculata 'Bobo' is a dwarf variety, growing only about 3 feet tall and wide. Oakleaf hydrangeas thrive in the shade and won't bloom in full sun, while panicle hydrangeas love to soak up the full sun and won't bloom in the shade. A. Specially formulated hydrangea fertilizer is available but isn’t really necessary. long (15 cm), from mid-summer to fall. Starting at $94. Showing 1 - 20 of 22 items. Hydranthea. Pruning 3. Once established, hydrangeas should be watered about one inch per week, spread across 3 watering sessions. 1. Bobo ® hydrangea is engulfed by large white flowers in summer. Endless Summer 'Bella Anna' Hydrangea macrophylla. Growing Zones 3 - 8. It grows to heights of at least 20 feet and blooms later in the summer than other forms of hydrangea. Nikko Blue Hydrangea Care. Soak your hydrangea in water to hydrate the roots before planting it in the ground, then water copiously. Bigleaf Hydrangeas (includes Mophead and Lacecap) mature to a height and width of about 10 feet. Fill several small pots or a larger pot with loose, sandy potting mix. Camellias Hydrangea macrophylla, or bigleaf hydrangea, and to a certain extent H. This easygoing oak leaf variety is shade tolerant and makes for an elegant choice for both mass or accent plantings. The best soil. It's an upright, multi-stemmed shrub with a loose, open branching habit. Water them during a drought, especially if you notice wilting. Flowers, like clothes, go in and out of style, but white hydrangeas will always dispel gloom in a dark corner. Plant Size: 4-5 feet. Water your hydrangeas regularly to keep. Bred in Georgia to handle the heat, compact Hydrangea paniculata Little Hottie® puts on an impressive and outsize flower show even as the mercury rises. Developed by the US National Arboretum from a cross of ‘Snow Queen’ and ‘Pee Wee’. Tardiva Hydrangea Care. While it can seem tedious, protecting your potted hydrangeas against the winter winds, cold, and frost. Click below on a thumbnail map or name for species profiles. Purple hydrangeas fall somewhere in the middle. Water frequently for several weeks afterward, to help the plant establish well. The simplest method is to mound shredded leaves or bark mulch around the base of the plant to about 12 inches or so. Hydrangea comes in three forms: vine, shrub and tree. macrophylla but is generally smaller, with a height and spread of 2-4 feet. Then place at the base of the plant for an hour or so. This name was given due to the shape of the flower’s seed capsules. WATERING: It is important to keep the soil mix evenly moist. 5 or lower. Water the plants sparingly to prevent the dormant plant's roots from sitting in water, adding just. Dig a hole 2 feet wider than the root ball and as deep as the root ball, so it sits level with or slightly higher than the soil in order to encourage drainage. Each hydrangea variety requires an abundance of organic material in the soil and perfect drainage. Name: Begonia ( Begonia) USDA Hardiness Zones: 6-9. Opening creamy white with some lime green flushing in midsummer, the florets turn soft to deep pink as fall approaches. You may hang the cut bloom upside down or in a vase with just a few inches of water. Long-lasting, the blossoms gradually turn rosy-pink as they. Commonly found all-purpose 10-10-10 fertilizer is the easiest to use. Tough, cold-hardy, easy-care, long-lived, it is laden with large, conical, snowy flowers from midsummer to fall. With over 70 species of hydrangea, there are compact varieties and ones with scented flowers or fall foliage, and even varieties that flower twice on old and new wood. Thereafter, cut back to one feeding per month. The petals are attached above the ovary and contain 4 united carpels (can be 2-5). All hydrangea plants need irrigation in the summer, especially if they are planted in a full sun location. Read on for more oakleaf hydrangea information and tips on how to care for. Next, place the hydrangea in the center of the container and fill the planter with soil, mounding some atop the root ball. October 14, 2023. The “ lacecap ” version of this species. Hydracyanosides, a group of toxic cyanogenic glycosides, have been isolated from the leaves of Hydrangea macrophylla. USDA Zones: 5 to 10. Large and round, hydrangea flowers burst into rich pink, blue or purple shades beginning in summer, and hardy hydrangea shrubs can hold their blossoms well into fall. This climbing vine attaches to structures with rootlike holdfasts, but. Prune Hydrangea macrophylla and Hydrangea serrata in mid-spring, others in early spring. If you want to create a new hydrangea plant right next to a current one, you can. Position the stake close to the trunk and sink it at least six inches into the ground, taking care to avoid damaging the roots. A wild hydrangea plant won’t perform well in full sun in a hot location. Water once the top few inches of soil are dry. Hydrangea anomala petiolaris. Hydrangea macrophylla, as a class, is susceptible to plant diseases such as bacterial wilt, blight, leaf spot, and powdery mildew although BloomStruck hydrangea tends to have better resistance to powdery mildew than other species. Remove the plant from its pot and. Most shrub-form hydrangeas sold in North America fall into one of five types: bigleaf, mountain, smooth, panicle and oakleaf. anomala ssp. A favorite of many gardeners – and deservedly so – Hydrangea arborescens ‘Annabelle’ (Smooth Hydrangea) is an outstanding flowering shrub. In some hydrangea selections, blue or pink flower color is affected by soil pH—the bluest color is produced in strongly acid soils (below pH 5. See this plant in the following landscapes:Many experts suggest that the best time to plant a hydrangea is in the fall. A favorite of many gardeners - and deservedly so - Hydrangea macrophylla Endless Summer® The Original is an exceptional mophead cultivar for 2 reasons. The 6 to 8-inch flower heads are not as large or symmetrical as the cultivar ‘Annabelle’ hydrangea, but they contrast well against the dark, serrated foliage. Typically hydrangeas thrive when fed an all-purpose, balanced fertilizer like a 10-10-10 N-P-K or 12-4-8 N-P-K. There are two ways that hydrangeas bloom: new wood, and old wood. Other common care questions 7. Keep the area watered. The splashing drops will spread the disease. Planting. Incorrect Pruning. This is an American variety and can withstand drought better than the Asian types. petiolaris). [1] Like other Hydrozoans they are colonial. Pinky Winky ® H. Your hydrangea will need frequent watering in warm weather; check the container for moisture daily. Bloom on new wood: prune in late winter/early spring. rose collection. Mountain hydrangea (Hydrangea serrata) is another good hydrangea for pots. To plant, set your young hydrangea into the prepared hole. Back fill in the hole with the soil, tamp down the soil gently around the plant, and feed with some balanced fertilizer. Then focus on crowded. Dip the cut stem end in rooting hormone. See our Hydrangea Growing Guide for information on how to care for these flowering shrubs, including pruning and winter protection. Use a brick or stone from your garden to keep the branch in place. . Compared to its famous eight-foot-tall sibling, 'Limelight,' the 'Little Lime' hydrangea may look too small. To increase the size and quantity of hydrangea blooms, consider a fertilizer with more phosphorus. 5. Hydrangea paniculata ‘Little Lime’ – These summer flowers start out green and turn pink by autumn. Gently remove the pot from the root ball. They bloom in early summer on old wood, so prune big-leafy hydrangeas after flowering. Hydrangea barbara, another vining plant commonly known as climbing hydrangea, is native to the southeastern United States, but it is only cold hardy to planting zone 6. 2 and 5. Whereas soils that are above 6. Hydrangeas do best in moist soil and can wilt in hot weather, so keep well-watered during hot spells in summer.