Learning the fundamentals of how to plant hydrangeas can help you save time and money, just like with most other items in your garden. You’ll improve your chances of enjoying big, vibrant hydrangea flowers for years to come by picking the appropriate site, getting the soil just right, and planting correctly.
When should I plant hydrangeas?
The best time to grow hydrangeas is in the fall, followed by early spring. The goal is to provide the shrub lots of time to develop a strong root system before it blooms. Early in the day or late in the day are the ideal times to plant. The day’s cooler hours provide relief from heat exhaustion. Water new plants frequently until they get established.
Locations to plant hydrangeas
The first step is knowing where to grow hydrangea plants. Hydrangeas are frequently grown in beds adjacent to houses or fences. This is so because hydrangeas prefer the mild early sun to the hot afternoon sun. A protected area with sunny mornings and shaded afternoons is the ideal spot to plant hydrangeas. This is frequently found on the north or south side of a house. Avoid planting underneath trees since it could cause competition for nutrients and water. Flowers and leaves can both be destroyed by strong winds.
hydrangea-friendly soil
The soil needs to be rich in organic matter for hydrangeas to thrive. Drainage is important. Although hydrangeas prefer damp soil, they cannot stand standing water. Root rot can be brought on by wet, poorly draining soils. Your hydrangeas could pass away in a matter of weeks. Consider adding a lot of compost to your heavy soil before planting to increase the soil’s quality.
Methods for planting hydrangeas
Simply dig planting holes that are 2 feet wider than the root ball for planting hydrangeas. So that your plant lies level with or just higher than the surrounding soil, match the depth of the hole to the size of the root ball. You can improve water drainage away from the plant’s base by making a small mound.
The best way to grow hydrangeas
Simple propagation methods can multiply a single hydrangea into several more. The optimal time to layer bigleaf and panicle hydrangeas is in the early to mid-summer. You only need to:
- Close to your hydrangea plant, make a tiny trench.
- Bend a branch such that the middle of the branch meets the earth in the trench (six to 12 inches of branch should extend past the trench).
- Where the branch meets the trench soil, make scuff marks on the bark.
- After the trench is filled, cover it with a paver, brick, or stone.
- The branch can be transplanted to a different area once it has established its own root system over time.
Hydrangeas with smooth or oakleaf leaves produce new growth from underground stems. Simply separate the baby plant from the main plant by digging it up. After then, it can be moved to a new spot.
Can hydrangeas be grown in New York?
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QUESTION:
In front of the front porch of my vacation home on Saratoga Lake, I planted four Endless Summer Hydrangas two years ago. They had trouble the first year, but now they limp. Will you provide me with a Hydranga that can endure strong lakefront winds and subfreezing temperatures? I made an effort to protect the plants, but to no avail. I desire something robust and floral. The soil is healthy, but because we are close to a natural spring, it receives a lot of water.
ANSWER:
A variation of the Hydrangea macrophylla, which is indigenous to Korea and Japan, is called the Endless Summer hydrangea. We at the Wildflower Center specialize in and have a lot of experience with North American native plants, so we can’t really offer you much advice on your Endless Summer hydrangea other than to say that it enjoys moist soil but also likes well-drained soil. There are two types of native hydrangeas: Hydrangea arborescens, or “wild hydrangea,” which is indigenous to New York and much of the eastern US, and Hydrangea quercifolia, or “oakleaf hydrangea,” which is endemic to the southeastern US. Although it does require well-drained soil, it does grow in moist soil. So, unless you can find a grown kind that can handle having consistently damp feet, I don’t think you will be able to put hydrangeas there. However, I can suggest a few native shrubs to New York that can withstand too much water and still flower.
What time of year should hydrangeas be planted?
The majority of hydrangeas can be planted in the early spring or early fall; according on your region, choose the best planting season. According to the advice on the plant tag, space your plants properly. When the top inch of soil is dry, check the soil monthly and water. To help your watering efforts last longer and avoid weeds, spread 3 inches of mulch on the ground.
Can you find hydrangeas in Upstate New York?
Popular summer flowering shrubs include hydrangeas. Most people see hydrangeas as having big pink or blue puffball-shaped blooms, but there are many more shapes, sizes, and kinds as well. Hydrangeas that are simpler to integrate into the landscape have been introduced in smaller sizes. Due to our severe winters, it might be difficult to get some hydrangeas to bloom in Western New York. With this lovely summer flower, the first step to success is figuring out which will thrive in your garden.
Although hydrangeas may generally be grown in a variety of soil types, they prefer a rich, moist soil that is rich in organic matter. They do not tolerate drought well. Hydrangeas typically need one inch of water per week, but in hot, dry conditions, they may need up to two inches to avoid wilting. The majority of species may thrive in either full sun or light shade. They have minimal illnesses or pest insects. Because certain types of hydrangea shrubs flower on old wood while others do on new, different species require different pruning techniques.
Only five of the approximately 23 species of hydrangea are commonly grown in the United States. Probably the most well-known variety is Hydrangea macrophylla, often known as bigleaf, French, garden, or florist’s hydrangea. In the early summer, it produces those enormous puffball blooms of blue, pink, or white flowers. This native to Japan is considered zone 6 hardy, while some individuals may be zone 5. It will die back to the ground in cold winters and spring leaf out will be delayed. Bigleaf hydrangeas produce bloom buds on old wood (growth from the previous year), which means the buds must endure the winter. Unfortunately, in colder climes like ours, these buds have a minimal chance of surviving. They could be harmed by a freeze in the early or late spring. This is the primary cause of this hydrangea’s inability to bloom. To assist save delicate flower buds, try growing Hydrangea macrophylla in a protected place with adequate snow cover.
There are two varieties of flower heads on bigleaf hydrangeas. the Lacecap group, which has flowers in a flat-topped cluster, and the Mophead (Hortensia) group, which has blooms that resemble enormous globes. Mophead and a few of lacecap hydrangea blooms are pH-sensitive. Flowers typically turn blue on soils with an acidic pH of 5.5 or lower. Pink-hued blooms are more common in neutral to alkaline soils (pH 6.5 and above). The flowers can be purple or a combination of blue and pink blossoms can be found on the same plant between pH 5.5 and pH 6.5. As a result, you can add sulfur to make hydrangea blossoms more blue and lime to make them more pink if you wish.
The beautiful flowers of bigleaf hydrangeas are typically their raison d’être, but some varieties also have gorgeous leaves. The beautiful golden-green foliage of “Sun Goddess,” also known as “Lemon Zest” and “Yellow Leaf,” will shine in the shadow garden. Golden foliage is also found on “Lemon Daddy.” Both “Light-O-Day” and “Variegata” have lush green leaves with white edges and lacecap blooms. One benefit of these plants is that you may still enjoy the vibrant foliage even if the flower buds die throughout the winter.
Native to the eastern United States, smooth hydrangea (H. arborescens) develops as a shrub in the understory of woodlands. It develops into a rounded shrub that is 3 to 5 feet tall and wide, preferring part shade and lots of rain. It consistently blooms in late June or early July, giving forth clusters of white flowers that are 4 to 6 inches in diameter. The cultivar “Annabelle” has long been well-liked. It bears huge, up to 12-inch-wide flower heads. Since it has bigger flower heads and thicker upright stems that don’t flop when in bloom, “Incrediball” is regarded as an enhanced variant of “Annabelle.” The pale pink blooms of “Incrediball Blush” eventually deepen to a deep pink before fading to chartreuse in the fall. Try one of the H. arborescens kinds if you want a hydrangea that is generally trouble-free and deer-resistant. They may die back to the ground in the winter even though they are hardy to zone 4, but they will bloom the following year.
The Panicle hydrangeas bloom at a later point in the growing season (H. paniculata). They are a different hardy variety that may be grown and bloom in zones 4 to 7. It has Asian ancestry and is fairly versatile because it can withstand dry spells (but not drought) and full sun. Although lower kinds have been created, the majority will reach a height of 10 to 15 feet. Midway through the summer, it blooms with creamy white, 6 to 18-inch long panicles. Flowers may grow into a pink hue depending on the type. If necessary, prune panicle hydrangeas in late winter or early spring since they blossom on new wood. Some Paniculata hydrangeas are cultivated as trees because they often develop a woody trunk. There are many different varieties to pick from, though “Limelight” may be the most popular.
Hydrangea oakleaf (H. quercifolia) is a native to the Southeast of the United States. It has broad, lobed leaves that look like oak leaves. The 8-foot-tall oakleaf hydrangea has upright stems that develop in growth. The big, white conical flower heads appear in July, which is when it blooms. The blossoms stay beautiful until the fall before drying to a pink-mauve color. The autumn foliage may be stunning, turning hues of crimson, burgundy, and purple. The peeling bark also provides appeal to the winter months. Because they dislike having their feet wet, oakleaf hydrangeas need to have great drainage. Zone 5 is the hardiest for oakleaf hydrangeas. Large white flower clusters on the “Snow Queen” plant turn rose pink in the fall. Large heads of double, white flowers that become rosy-pink are shown on the “Snowflake” plant. A small oakleaf plant called “Ruby Slippers” has white flower clusters that progressively become pink and ultimately scarlet.
Color and beauty are provided by hydrangeas all through the summer and into the fall. They can be utilized as a specimen plant, blended with perennials, or in the shrub border.
University of Rhode Island, University of Massachusetts, U.S. National Arboretum, University of Georgia, Missouri Botanical Garden, and “Hydrangeas in the North by Tim Boebel” are some of the sources that were used to write this article.
Agriculture outreach coordinator for Cornell Cooperative Extension is Jan Beglinger.
When can my hydrangeas be planted outside?
“For Mother’s Day, my daughter handed me a lovely hydrangea. It has done so wonderfully that I’m curious if I should plant it outside or keep it within as a houseplant.”
Hydrangeas with foil encircling the pot, whether they were a gift or something you bought yourself, frequently differ from those bought at a nursery. The foil-wrapped hydrangea is often grown for a single, grand performance. The plant has been specifically fed to produce a lot of huge blooms quickly, frequently at the price of the plant’s long-term health.
The hydrangeas selected for this project are exclusively grown in greenhouses and might not be winter hardy where they are purchased.
If your locale isn’t warm enough to cultivate hydrangeas outdoors, you might wonder if you can grow them indoors as a houseplant.
A. There are a variety of reasons why growing hydrangeas inside in a home environment is not particularly successful. When hydrangeas may experience a period of dormancy brought on by chilly weather, they thrive. Hydrangeas rarely blossom indoors, attract insects, and lose their leaves unless they are in a greenhouse. They frequently dry out too rapidly and wilt, which makes them weaker.
However, some gift/florist-type hydrangeas may be grown extremely well in the landscape, as you can see from the images below.
Although growing hydrangeas indoors is not the optimal answer, it is conceivable if one lives in an apartment or in an area where they cannot survive:
1) Put the hydrangea in the coolest part of your house; ideally, an unheated room.
2) Position it close to a window so that it receives the most light possible.
The third and most crucial tip is to not overwater the plant by letting it sit in water or by watering it too frequently. It’s preferable to keep it dry during the winter, but it shouldn’t ever get too dry that it wilts.
Whenever possible, it is ideal to plant the potted hydrangea outside. It should only be planted outside in the early to mid-summer because it needs time to get used to the weather before winter.
In conclusion, unless it may be planted in the garden, foil-wrapped hydrangeas are best employed as a temporary plant in a person’s home.