Once the germinated seeds are big enough to handle, transplant them to their spot outside in the fall. Bloom on new wood: prune in late winter/early spring. Firm the soil in around the rootball. Keep the blooms out of the sun in a well-circulated area. Since the 'Pistachio' hydrangea is a reblooming variety that flowers on both new and old wood, little pruning is required. Once the soil level of the potted hydrangea and the soil level around the outside match, remove the potted hydrangea. Like most potted plants, watering will depend on how fast the soil dries out and if it's in bloom or not. Incorrect pH. Reaching a mature height of 3 to 5 feet with a symmetrical spread of 3 to 5 feet, the flowers of this fragrant hydrangea. Low maintenance and easy to grow, this hardy hydrangea can be used as a hedge,. What Are Hydrangeas? Blooming in spring and summer, the hydrangea is considered a shrub. Whereas soils that are above 6. Smooth hydrangea (Hydrangea arborescens), sometimes called hills of snow or snowball hydrangea, is an especially easy-growing type native to North America. 2. These levels are affected by soil pH, so on acid soils where the pH is 5. October 14, 2023. Also known as peegee hydrangea, panicle hydrangeas produce football or cone-shaped flower clusters in mid-to-late summer. Bigleaf hydrangea (H. Learn more about growing hydrangeas in pots. Blooming from late spring to fall, the profuse blossoms appear on a compact, bushy plant, adorned with broadly ovate, dark green leaves. Perhaps the best known of the hydrangeas is the mophead style of Hydrangea macrophylla. Mulching can also help to keep the roots moist. hydrangea. Choose a planting location that receives at least three to six hours of sunlight each day. Then, give the plant a deep watering right after planting. Sprinkle them on the seed-raising soil and moisten them with a spray bottle. This rust only infects the smooth hydrangea, H. This spot should also be large enough for the full size of the plant. Then focus on crowded. Hydrangeas in general prefer a rich, well-drained soil. They are known for their exquisite flowering display, with many offering a season of beautiful blooms that remain attractive into winter. Cityline Paris. Only two of the few commonly grown species actually have the ability to change color. Next, carefully strip off most of the leaves, leaving a pair at the tip of the cutting. Ruby SlippersOakleaf Hydrangea. It includes over 70 species of deciduous and evergreen shrubs, as well as a few small. As with other mophead or French hydrangea varieties, Summer Crush hydrangea require morning sun and afternoon shade. When growing hydrangea as a houseplant, a period of dormancy during fall and winter is recommended. Make sure the pot has drainage holes and has room for the plant to grow. This is a wonderful dwarf form of the popular Quick Fire™ hydrangea. Limit any drastic pruning to early spring, just before new growth emerges. Daylilies. Hardiness Zone: 4-9. 3. CamelliasYes! Hydrangea macrophylla, or bigleaf hydrangea, and to a certain extent H. Avoid these by spacing plants to allow for air circulation and avoid getting the leaves wet, especially late in the day. Flowers on this plant can be white to cream as well as pink on spp glabra, ‘Crug Coral’. A hydrangea tree looks best with one trunk, a trunk that is bare up to where the canopy begins. Fill the hole halfway with the soil and then water thoroughly. 99. Autumn is the best time for hydrangea planting. Like the original, it is early blooming, flowering about a month before other hydrangeas. Hydrea may cause serious side effects. Another beautiful variety, Hydrangea quercifolia is typically tolerant of more shade, but ‘Gatsby Gal’ is a sun lover. Plant Size: 4-5 feet. Bobo ® H. If you're in a warmer zone (8-9), you might want to limit the amount of. Cut off a small branch. Smooth hydrangea can be grown in full sun or dappled shade (the. It should be deep enough so that where the plant meets the soil is flush to the ground. See moreWhat Are Hydrangeas? Blooming in spring and summer, the hydrangea is considered a shrub. Back fill in the sides with soil. Cut the stem, then let the flower head finish drying in the bag. Shop our collection of hydrangea shrubs at Spring Hill. Hydrangea macrophylla (also called French Hydrangea, florist’s Hydrangeas or Hortensia) is the variety that most people think of when they hear the word Hydrangea. Light: Partial sun to shade. You want to cut down to just above the fresh. Fertilizing 4. Gently take the plastic nursery pot off of your hydrangea and place the unpotted hydrangea back into the hole. "Getting your soil pH tested before planting your hydrangeas is essential to make changes where necessary," says Laura Root, category manager of live plants at Jackson & Perkins. Dig a hole as deep as the root ball and 2-3 times as wide. Beyond flowers, these amazing shrubs offer additional ornamental beauty from neat and inte. Planting. If the infestation persists, apply horticultural oil. Unlike other hydrangea types, the soil pH does not affect Limelight's bloom color. Whereas soils that are above 6. They also have brilliant autumn foliage. The main differences between the two are the size and the hardiness. Flower Color: Pink, red, yellow, orange, white. USDA Zones: 5 to 10. Sun: Partial Shade to Full Sun. macrophylla varieties feature tiny lacelike flowers surrounded by larger blossoms – these are commonly known as lacecap hydrangeas. Your hydrangea will need frequent watering in warm weather; check the container for moisture daily. Mature Size: Varies, 6-18 in. Hardy to USDA zone 3. 08 of 26. One of the more decorative varieties, Mirandas can grow up to 50 feet tall and six feet wide. Place your plant in the middle of the hole. 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. tall (90-120 cm) and 24-36 in. See our Hydrangea Growing Guide for information on how to care for these flowering shrubs, including pruning and winter protection. This will usually occur sometime in late summer. Garden Plans Hydrangeas can flourish in sun or shade. It can take up to a year for the soil pH change to take effect and show in the flower color of your hydrangea. Hydrangea, (/ h aɪ ˈ d r eɪ n dʒ i ə /) commonly named the hortensia, is a genus of more than 70 species of flowering plants native to Asia and the Americas. Laurey W. Hydrangea macrophylla, also called bigleaf or French hydrangea, typically has either pink or blue flowers, although a few cultivars have white flowers. Hydrangea trees tend to grow best when the leaves are receiving at least 6-8 hours of sunlight per day, ideally in the morning. Fill with potting soil to the bottom of where the plant will sit. Perhaps the best known of the hydrangeas is the mophead style of Hydrangea macrophylla. Trying to change flower color. Best in light shade, but tolerates sun if the soil is not too dry. Prune Snowball Hydrangea in Late Winter. Dip the cut stem end in rooting hormone. Starting at $21. The cultivar ‘Limelight’ has most commonly been grown in its natural shrub form, growing to a mature size of 6-8 feet tall and wide. 13. Hydrangea L. The 'White Dome' hydrangea is an upright, rounded shrub that bears fluffy clusters of creamy-white flowers. How to Get More Panicle Hydrangea Flowers: Plant panicle hydrangeas in all-day sun or afternoon sun. Trim an inch off the ends of the stems and submerge wilted flowers in a bucket, bowl or sink filled with cool water. Hydrangea Type: Bigleaf Growing Conditions: Part shade, especially afternoon shade, in evenly moist, well-drained soil. There are five types of hydrangeas: bigleaf or French hydrangea, smooth (tree) hydrangea, panicle, oakleaf, and climbing. Several cuttings can be rooted in one larger pot. 5 or lower (acidic soil), your Bigleaf hydrangeas will be blue. Several cuttings can be rooted in one larger pot. It is a deciduous shrub growing to 2 m (7 ft) tall by 2. Tease the roots with your fingers or a garden fork to loosen them and encourage outward growth. Part of the Hydrangeaceae family, the Hydrangea genus is nothing if not diverse. When soil pH is 6. Hydrangea macrophylla cultivars are well known for their ability to change flower colour depending on the levels of available aluminium in the soil. Borne on strong, sturdy stems, the blossoms create a colorful show that extends well into the fall. Planting the hydrangea tree properly is the key to its success. Dreamin' is beautiful and versatile, looking great in both the garden or planted in a decorative container. Hydrangea macrophylla and hydrangea paniculata require more water than hydrangea arborescens (smooth hydrangeas) and Hydrangea quercifolia (oakleaf). Hydrangea Drooping (Drought) Symptoms. Establish your potted hydrangea in a place that gets morning sun or sustained southern-facing sun for about four hours but keep the plant out of direct sunlight. Many new Hydrangea species, such as the Endless Summer and Everlasting series, rebloom throughout the summer and fall. Dig a hole two to three times as wide as the pot but at the same depth. This name was given due to the shape of the flower’s seed capsules. Remove the plant from its nursery pot and place it in the container. Strawberry Vanilla (Hydrangea paniculata 'Renhy'), the cultivar that is the most similar but larger than Strawberry Sundae. 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. Perfect for adding late summer color to the shrub border, Hydrangea paniculata 'Vanille Fraise' features loose, fluffy, pyramid-shaped flower heads at the tips of gracefully arching branches in summer. Dig the planting hole twice as wide and to the same depth as the root-ball. Color: Pink. Oakleaf hydrangea is an upright, multi-stemmed, deciduous shrub in the Hydrangeaceae (hydrangea) family. Native to China and Japan, Hydrangea paniculata (Panicle Hydrangea) is a deservedly popular deciduous shrub. Once dried, the hydrangea can be sprayed with floral spray paint for deeper colors. tall and wide. Data Source. 5 or less and aluminium is freely available then the flowers take on a lovely shade of blue. Oakleaf Hydrangeas mature to a height and width of about 8 feet. Leave 1 to 2 inches between the top of the soil and the rim of the pot for watering. This is an American variety and can withstand drought better than the Asian types. Available in better garden centers. Showy, the creamy-white florets become pink-tinged as fall approaches. Few blooms provide more showy appeal than hydrangea: long-blooming. Hydracyanosides, a group of toxic cyanogenic glycosides, have been isolated from the leaves of Hydrangea macrophylla. Add plenty of organic matter (such as compost) around the plant. In-ground Hydrangeas – Winter Protection. By far the greatest species diversity is in eastern Asia, notably China, Korea, and Japan. But Hydrangea roots are actually surprisingly shallow. Vigorous, this deciduous shrub typically grows 3-5 feet tall and wide (90-150 cm). Smooth hydrangeas are one of the more popular types of hydrangea grown each season. Hydrangeas grow best in climates with moderate humidity and temperatures—typically around 50°F to 60°F—under 80°F is best. The splashing drops will spread the disease. Keep the area watered. 1. Others are happy in dappled sunlight to. Whether you grow a big leaf hydrangea, panicle hydrangea, smooth hydrangea, or oakleaf variety, a well-tended hydrangea will give you lots and lots of gorgeous blooms throughout the summer. Like all panicle hydrangeas, 'Sundae Fraise' is tolerant of most soils, regardless of their pH, as long as it's well-drained. quercifolia), the state wildflower of Alabama; panicle hydrangea (H. This is a plant that really knows how to show off. Hydrangea. You may not need to prune panicle hydrangeas every season. Remove the plant from its pot and. To turn them pink, add garden lime. Its flowers are produced on old wood from last. H. Annabelle is a favorite with bees and butterflies. But pruning an old-wood hydrangea in spring will remove the existing buds, and it won’t flower that year. Each stem should be trimmed back to the nearest set of healthy buds, making each cut so that it slants away. Plant Zone: 3-8. See this plant in the following landscapes:Many experts suggest that the best time to plant a hydrangea is in the fall. Dig a hole twice as deep and as wide as the pot so the plant has enough room to grow. " Water your hydrangeas thoroughly but less frequently to encourage deep roots that are more drought tolerant and that will produce hardier stems," she says. Light. In older manuals and sources, wild hydrangea. 5 ( alkaline ), the flowers will be pink. 5-6. If exploring slow-release granular fertilizer, choose one. Soil. Hardy to USDA zone 3. Cuttings are the best way to propagate Limelight hydrangea, using a stem from the plant that's cut right above the leaf node, so you get stem and leaf in it, Hogan says. How to Grow Hydrangeas in Pots. 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). How to prune mophead and lacecap hydrangeas. This is the species where. 4. The dark green options are exceptional with white hydrangeas, and the variegated green and cream types go well with white, pink and blue hydrangeas, depending on what you have chosen. Best shrubs for shade with variegated leaves. Use an approved fungicide if necessary. With its compact habit, this hardy hydrangea adds striking flowers to mixed borders or hedges and is perfect for patio. Look for the “broccoli,” Lorraine says. paniculata . Introduced. Zones 5-9. 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. For pink flowers, the plants need neutral to alkaline soils (pH 6. Taking cuttings is a good way to clone your favorite panicle hydrangea. To increase the size and quantity of hydrangea blooms, consider a fertilizer with more phosphorus. Prune out from one-third to one-quarter of last year's growth to the base each year to encourage the plant to produce new shoots. It has thick leaves that retain water well and help it get through periods of drought without having to be watered all the time. Commonly found all-purpose 10-10-10 fertilizer is the easiest to use. Limelight (Hydrangea paniculata. Shrubby hydrangeas brighten borders in mid to late summer with their showy, but delicate, long-lasting flowers in shades of pink, white or blue. Tardiva Hydrangea Care. Their compact shrubby nature makes them ideal for areas where you may not want a fully grown, taller plant. The Panicle Hydrangea is more tolerant of full sun than other hydrangea species. Fungal leaf spots and powdery mildew are among the most common hydrangea diseases. long (20-30 cm), from late summer into fall. Both too little and too much sunlight can affect blooming. Invincibelle Wee White ® hydrangea is positively ground-breaking: it's the first dwarf 'Annabelle' type hydrangea in the world! This cute little landscape plant ensures that any landscape can enjoy the reliability, low-maintenance, and season-long beauty of hydrangeas. Dreamin' is a genuinely unique hydrangea macrophylla. The perennials have stunning foliage and blooms, and are mostly fuss-free. Annabelle hydrangeas are more cold hardy than mophead or oakleaf hydrangeas, can still grow in zone 3. It can be severely pruned in. Hardy in zones 4 to 8; for full or part sun. Water low and deep with about one inch of water per week. If the shallow roots become exposed over time, add more soil and compost to keep them protected. Other common care questions 7. Diseases of hydrangea are typically foliar, although root and flowers may also become infected. Fill several small pots or a larger pot with loose, sandy potting mix. Trying to change flower color. This shrub is prized for its long-lasting flower panicles that emerge white but gradually transition to purplish pink. Annabelle hydrangea is propagated with softwood cuttings taken in spring. Here are the common. Oakleaf hydrangea is more drought-tolerant than other hydrangeas. Backfill the hole, and cover the branch with garden soil. While this family of flowering shrubs is widely distributed in Asia and North America, this particular plant is native to the Southeastern United States, where it prefers moist woods and stream banks. Matthew Benson. Mulch helps the soil and roots to retain moisture. Dig up the rooted section from the ground. Its color is deep pink/red in alkaline soil and tends toward purple in acidic. Borne on strong, sturdy stems, the blossoms eventually fade to parchment and pink as fall approaches. The thin strappy leaves of ornamental grasses make them appealing companion plants for hydrangeas. You may hang the cut bloom upside down or in a vase with just a few inches of water. Take off up to 30%-50% of the old growth, before they leaf out, to create a roundish shape. When you need a big, bold specimen plant, look no further than hydrangea. Make sure the plant will have partial shade. Plant in rich soil that is moist but well-draining. When the soil has a pH higher than 6. The myth, the legend, the plant: 'Limelight' hydrangea. We recommend pine straw, oak leaves or wood mulch. By far the greatest species diversity is in eastern Asia, notably China, Korea, and Japan. Like the mondo grass, it holds its golden color all season long and enjoys the same growing conditions as the hydrangea. ‘Incrediball’ is a hybrid of ‘Annabelle’ and other Hydrangea arborescens varieties with the goal of stronger stems. Locate spent blooms and then follow them down to the first set of full-sized leaves beneath the flower head—make your cut right above the leaves. Prepare the planting hole: Dig a hole that is twice as wide and just as deep as the root ball of your plant. Prune Hydrangea macrophylla and Hydrangea serrata in mid-spring, others in early spring. 5. 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] 。. If it feels semi-dry to the touch, water. 3½' tall and 5' wide. This hydrangea will grow up to 5 feet tall. In some parts of the country, temperatures can fluctuate from -10 to 30 degrees in a week or two. While the plant is in bloom, hydrangeas need water more often. The smooth hydrangea ( Hydrangea arborescens) is native to eastern North America. To increase the size and quantity of hydrangea blooms, consider a fertilizer with more phosphorus. Huge bouquets of hydrangea flowers, which vary from mophead to lacecap types, show beauty from summer to fall. In early summer, this small, bushy deciduous shrub produces huge, rounded flower clusters, up to 12 in. Next, dig a shallow hole a few inches deep and lay the hydrangea branch in it. Its color is deep pink/red in alkaline soil and tends toward purple in acidic. paniculataThis serves to build up a strong, supportive, woody base while also encouraging abundant new growth for plenty of flowers. The cultivar name is ‘Abetwo . As you can notice, most hydrangeas will spread as much as their height is, except for climbing hydrangea varieties and panicle hydrangeas that have a smaller spread compared to their height. There are a number of easy techniques for growing a hydrangea from cuttings, including: Take 10cm soft-tip cuttings in October/November. Hydrangea macrophylla is a species of flowering plant in the family Hydrangeaceae, native to Japan. Hydrangea paniculata 'White Diamonds' is a compact, bushy, deciduous shrub boasting glistening white flower panicles in mid-summer. ’. Hydrangea, Panicle Hydrangea. Avoid cutting the plant in the spring because this may reduce the number of flowers. Put the mulch mound in place in late fall after the ground freezes, and uncover plants in spring when. They produce white blooms and quickly climb to a height of 80 feet (24 m. Remove the plant from its container, and set it in the center of the hole. Tree hydrangeas, including Pee Gee hydrangeas, tolerate almost any type of soil, including acidic or. serrata is similar in appearance to H. Back fill in the hole with the soil, tamp down the soil gently around the plant, and feed with some balanced fertilizer. Dig up the rooted section from the ground. Place your hydrangea pot in a sunny spot. 8. With handsome, glossy foliage and gorgeous ball-like blooms, bigleaf hydrangea is the Southern Belle of hydrangeas. It yields white flowers and has excellent frost and heat tolerance. Its early bloom time will. Features. The ideal time to plant this flower is early summer. Name: Begonia ( Begonia) USDA Hardiness Zones: 6-9. The contrasting color which it holds all season long marries well with the hydrangea and grows happily in similar conditions,’ says Ballato. Place in a sunny spot and wait for around 14 days for germination. Its large bloom clusters open pure white, but then quickly age to deep pink, adding beauty to the shaded garden. serrata. The word “hydrangea” gives a hint why. It should be deep enough so that where the plant meets the soil is flush to the ground. 10. This hydrangea is tolerant of cold temperatures, and it's one of the easiest hydrangeas to grow, needing only partial shade and regular water to thrive. elenaleonova / Getty Images. Water. These plants prefer moderate climates, with most growing best in USDA Zones 3. Start by removing any dead, damaged, or diseased branches with clean, sharp pruning shears. Make sure the pot has drainage holes and has room for the plant to grow. Planting Tips. ‘Incrediball’ is a hybrid of ‘Annabelle’ and other Hydrangea arborescens varieties with the goal of stronger stems. Flare™ Hydrangea Spacing. Planting. The flowers are held upright on strong stems, and continue to grow and lengthen as they bloom. The occurrence of these toxins throughout the genus is poorly known, so other species of Hydrangea should be treated with caution and not consumed. Third, spray the healthy foliage (before any diseases show up) with Daconil or Immunox according to the label directions. Paniculatas dependably bloom on new growth every year in mid-summer, and the show is spectacular. Hydrangea anomala subsp. You can also apply a layer of mulch to aid water retention. Daniel J. 8. Here is a guide to all things hydrangea: a description of the different types, how to. 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. chateau™ rose of sharon. Schizophragma hydrangeoides, known as false hydrangea vine or Japanese hydrangea vine, is faster to get established and produce flowers. They prefer sun in the morning with. botanical name Hydrangea macrophylla ‘Monmar’ PP #25,209. Hydranthea is a genus of cnidarians belonging to the family Lovenellidae. They gained popularity in the Victorian era and have taken off ever since. Name: Cityline Mars hydrangea ( Hydrangea macrophylla Cityline 'Mars') USDA Hardiness Zones: 5-9. You should carry out this practice all through the blooming season to encourage new blossoms and keep your plant looking fresh. You can deadhead the flowers in the fall if you wish, but save the significant annual pruning until early spring. 12. Opening creamy white, the florets turn deep pink as the season progresses. Phosphorus is the middle number, so a fertilizer labeled 10-20-10 will do. Blooming from mid to late summer, the glowing blossoms retain their color for a long period before taking on a metallic. Incrediball is an improved version of the popular Annabelle hydrangea, with strong, sturdy stems that do not flop over and extra-large blooms. With the proper growing conditions and care for hydrangeas, they can be grown in a wide range of regions. 9 Gorgeous Hydrangea Types. Popular with cut flower growers, Hydrangea macrophylla 'Masja' is a dwarf mophead hydrangea with large, rounded flower heads, up to 6 in. Use a small pot with sterile. For paniculata hydrangeas, a slightly acidic with a pH between 6. Water thoroughly at the base of the plant, let the water soak in, and water again. Clip away the other stems as near to the soil line as possible. Proper hydrangea care will help your favorite summertime shrubs look their best. Panicle Hydrangea. Use this reblooming hydrangea in containers, as a specimen plant, to. Bobo (Hydrangea paniculata 'Ilvobo'), a compact dwarf hydrangea with white. Hydrangea quercifolia (oakleaf hydrangea): Growing to about 8 feet tall with white blooms, this species is hardy in zones 5 to 9. The afternoon sun is too much light for hydrangeas, so find an area where it will receive partial sunlight, usually around six hours of morning sun daily, and then rest in the shade. Height x spread: 120cm x 120cm. ) are popular flowering shrubs in Maryland gardens that are easily recognizable by their big blue, pink or white flower heads. You can use simple additives to change the soil’s pH. long (15 cm), from mid-summer to fall. 1. Aside from loving the sun, they are hardy in zones 4-8, which makes this plant a great choice for a very large area of the United States. Dip the cutting in rooting hormone. The flowers start out white, cream, or green and slowly turn pink, drying and remaining on the plant long after the leaves have fallen. It is a dwarf variety and grows up to five feet tall to four feet wide. A good all-purpose 12-4-8 or 10-10-10 composition will provide all the fertilizing hydrangeas need. Be careful not to cut the roots of the cutting or the mother plant with your spade. Water frequently for several weeks afterward, to help the plant establish well. Showy, the white, sterile flowers slowly turn purplish-pink as they mature. Developed by the US National Arboretum from a cross of ‘Snow Queen’ and ‘Pee Wee’. Specifically, hydrangeas prefer bright, indirect sunlight for several hours daily. macrophylla alone), hydrangeas find their way into most gardens in temperate climates. Hydrangea serrata, commonly known as Mountain Hydrangea or Tea of Heaven, is a deciduous shrub native to the mountainous regions of Korea and Japan. Each lacy flower cluster is composed of small fertile flowers, and larger showy sterile blossoms that are subtended by showy. But despite their ability to be rather large showstoppers in your yard, how to grow hydrangeas isn’t a question even the novice gardener will need to ask – these beauties all but grow themselves. camellia collection. They also love moisture, so add some water-retaining crystals to the soil as you backfill. This hydrangea is more tolerant of full sun than other hydrangea species but prefers morning sun and afternoon shade. Water Hydrangea ‘Bella Anna’ with soft water: rain or settled. serrata, will react to the pH of your soil as well as the level of aluminum in your soil by changing color. Climbing Hydrangea (Hydrangea petiolaris) – Hardy to zone 4, climbing hydrangea is a woody vine with white flowers. This will prevent weeds and maintain soil moisture. Wait until a blossom begins to fade and die. Propagation by cuttings is the main way of reproducing these plants. Look for the “broccoli,” Lorraine says. Set plant in the hole and backfill with existing soil. 5. For purple blooms (or a mix of blue and pink flowers on the same plant), the pH of the soil must be between pH 5. This unique panicle hydrangea revolutionized landscaping across North America. Its foliage is spectacular even without the massive, upright, 12-inch blossoms. • Plant 1-2″ above ground soil level, backfill hole with soil. Mature Size: 1-3 ft. ‘Another very popular companion plant is Japanese forest grass. The iconic “snowball” shaped blooms of Hydrangea macrophylla (big-leafed hydrangea) are a common staple of backyard gardens. The “ lacecap ” version of this species. 8. Carefully remove the plant from the container, taking care not to damage the roots. Hydrangea leaves: ‘Nikko Blue’ lustrous medium green leaves are an obovate to elliptic shape measuring 4” to 8” (10 – 20 cm) long. Water your new planting thoroughly. Use it in a mixed border, or as a showy specimen or foundation plant. Pick Remaining Flowers. Also called Hydrangea petiolaris, these can grow 30 to 80 feet long. Growing Zones: 4-8. They bloom in early summer on old wood, so prune big-leafy hydrangeas after flowering. patio tree collection. You'll need 3- to 5-inch pots with drainage holes, sandy potting mix, rooting hormone, and sterile clippers. Water at a rate of 1 inch per week throughout the growing season.