First and foremost, you need to be aware that not all hydrangeas are hardy. I’m referring specifically to the mophead hydrangeas (hydrangea macrophylla). The gorgeous blue and pink hydrangeas that can be found all across the Lower Mainland are called mophead hydrangeas.
Hydrangeas of the smooth and panicle types (hydrangea paniculata) overwinter successfully here (hydrangea arborescens).
Flowers Cone-shaped flowers are supposedly characteristic of panicle hydrangeas, but I only sort of agree with that description. According to me, depending on the variety, the cone shape might be either quite clear or highly ambiguous. The size of the flower also varies widely.
The flowers of smooth hydrangeas are larger and dome-shaped. The flower size is more constant (between 6 and 12) “amongst variations (measured in diameter).
Hardy hydrangeas come in countless colors of white, pink, and lime when it comes to flower color. The tones and/or colors of the blooms frequently change as they become older.
Smooth hydrangeas have green, flexible, generally softer stems than panicle hydrangeas, which have reddish, woody, robust stems. This is because smooth hydrangeas sprout from the ground every year, but panicle hydrangeas regenerate on growth from the previous season.
The leaves of smooth hydrangeas are lighter green and softer, whereas those of panicle hydrangeas are often darker green and more leathery.
The need for trimming differs significantly between panicle and smooth hydrangeas.
The branch tips of panicle hydrangeas only need a minimal annual trimming. (If your ancient panicle hydrangea is no longer flowering nicely, that is the exception.) The hydrangea will then require “inspiration” to bloom once more. In the early spring, simply prune a couple of the oldest stems as close to the ground as you can.)
Every year in the early spring, smooth hydrangeas require severe pruning. Reduce all stems to around 3-6 inches “from the ground. Because of this, if your intended planting site is prone to significant winter snow loads, smooth hydrangeas are a preferable option.
Depending on the type, a mature hardy hydrangea can range in size from 3′ × 3′ to 10′ x 10′.
Hydrangeas can be planted in the following ways, as shown in the photo gallery below:
- shrub used as a focal point or in combination with other perennials and shrubs
- as a planting of a foundation (meaning against the foundation of a house)
- as a planting campaign
- like a hedge
- like a tiny tree (see note below)
Note: Hydrangea trees are actually hydrangea plants that have been fashioned to seem like trees. Selective pruning for several years is required for this process. Any hydrangea can be trained into a tree if you have the patience to do so (otherwise, ready-made tree hydrangeas are available.)
Although hydrangeas are simple to grow, they do require wet soil. Hydrangeas will express their dislike of being dry. Your hydrangea should flourish if the soil is adequately prepared, mulch is added around the base of the bush, and thorough, infrequent watering is practiced.
Shade tolerance varies among different hydrangea cultivars. In general, hydrangeas can thrive in locations with at least three hours of sunlight per day.
Because hydrangeas flower a lot, fertilizing them is a smart option. Use just fertilizer for transplants and bone meal during the first year. To maximum bloom production after that, apply a slow-release fertilizer once a year.
I haven’t met a hydrangea that I didn’t enjoy, but the following is a good representation of the kinds that are out there:
You’ll agree that this hydrangea’s name is fitting once you see it in bloom. Bombshell is covered in so many flowers when it is in bloom that its leaves are hardly visible. Indeed, compared to other panicle hydrangeas, it produces the most flowers.
White blossoms gradually turn to delicate pink as they ripen. Bombshell has a longer flowering time and begins blooming earlier than the majority of panicle hydrangeas.
Bombshell is a compact and well-kept tiny hydrangea that matures to a height and width of about 3′.
The reason Invincibelle Spirit made the list is because it is the first (and only) smooth hydrangea with pink flowers. The huge, dom-shaped blossoms appear in the middle to end of the summer.
A medium-sized hydrangea, Invincibelle Spirit eventually grows to be 3–4′ high and broad.
The new and better version of “Annabelle” is called “Incrediball.” (Annabelle was found in 1910 in Anna, Illinois.) Despite being beautiful, Annabelle’s flowers frequently flop, giving the plant a disorganized appearance. If an Annabelle is hit by a lot of rain, it will appear more like a tornado landed on it.
Incrediball, on the other hand, has exceptionally strong stems that maintain the flowers upright. The really shocking part is that Incrediball’s flowers are much larger, with a maximum diameter of 12″! When fully opened, the blossoms turn white before turning back to lime green.
Little Lime is the hydrangea I’m currently obsessed with. Last season, they were on show in a stunning way at our front entry, and I couldn’t take my eyes off of them. I approached numerous times to take in the sight of their captivating, beautifully colored petals.
White, lime, pink, and other colors are all present in the thick flower clusters of the Little Lime plant. In terms of blossoming, it is very productive.
Because Quick Fire blooms one month earlier than the other hardy hydrangea varieties, it is a prized variety.
Quick Fire is shaped like a free, airy flower. The blossoms start out white, then turn pink, and then intensify into cherry red.
We only started growing Fire Light in 2014. However, it merits note due to the distinctive flower’s color and shape.
Fire Light flowers start out white and turn a rich pink color as they age, just like most pink hydrangeas. The panicles of the flowers have a very distinctive, dramatic shape.
Hardy hydrangeas are one of our region’s best flowering shrubs. Give any hardy hydrangea type you come across that I haven’t listed a try. You might really like it.
To explore many more hydrangeas, including those that will be available in 2016, visit the Proven Winners website. I’m eager to give them all a try!
Can hydrangeas endure the winter in Canada?
This article contains details about the common blue and pink lacecap or mophead hydrangea, H. macrophylla. In the United States and the majority of Canada, hydrangeas that are smooth and plicata do not require protection.
Winter protection is not necessary for hydrangeas that endure winter temperatures of at least 5 to 10 degrees. The hydrangea shouldn’t be affected if it only experiences single digit temperatures for a short period of time.
A word of caution: Bear this in mind when buying a hydrangea if you know it will require winter protection in order to bloom in your location. When the hydrangea is tiny, it will be simple to guard it; nevertheless, as it gets bigger, the job will get much harder and eventually become too tiresome to maintain.
When do hydrangeas bloom?
The type, cultivar, planting zone, and hydrangea blooming season all affect when they bloom. The majority of hydrangeas with new growth form buds in the early summer in preparation for blooming the next spring, summer, and early fall. Hydrangeas may stop flowering in the heat of the summer in hot locations, but they will blossom again in the fall.
How do you cut back hydrangeas?
Hydrangea plants don’t require pruning if they are allowed plenty of room to develop in the garden. Only the periodic clearance of dead wood is necessary.
Do you need to deadhead hydrangeas?
Your hydrangeas will continue to bloom into the fall if you deadhead them. Hydrangeas make wonderful cut flowers, so there’s no need to wait until the flower wilts. Leave the early fall blossoms alone so they can fade naturally. In the days leading up to your freeze date, you don’t want to promote new growth.
How do you control hydrangea color?
The distinction of hydrangeas is that you can modify their color. But keep in mind that not all hydrangea varieties can change their color. H. macrophylla, a species of bigleaf hydrangea, responds to changes in soil pH. Hydrangeas can absorb aluminum thanks to a low soil pH, which gives the blossoms a lovely blue hue. Reduce the pH of your soil by mixing in sulfur or peat moss to enhance the number of blue hydrangea flowers. Throughout the growth season, you can keep amending your soil with extra aluminum sulfate. When you add ground limestone to boost the pH, pink and red blooms shine.
You may precisely modify your hydrangea color using a soil pH test. To avoid the plant from being harmed, keep the pH level below 7.5. In the fall, all hydrangeas will naturally fade regardless of the modifications you’ve made. Don’t worry, the plant will display vibrant, new blossoms once more in the spring.
Can hydrangeas grow in shade?
Although they won’t blossom in complete shade, hydrangeas prefer dappled or infrequent shade. How much sun do hydrangeas need is more important to consider than whether they love the sun or the shade. Your hydrangeas require more sunlight the further north in your garden you are. A general guideline is six hours of sunlight each day. However, southern hydrangeas can thrive with just three hours of sunlight per day.
Can hydrangeas grow in full sun?
While hydrangeas prefer morning sun, they struggle in the hot, afternoon sun. For these gorgeous creatures, partial shade in the later hours of the day is optimal.
Can you grow hydrangeas in pots?
Even if you don’t have enough room in your garden to cultivate hydrangeas, you can still enjoy these lovely blossoms by learning how to grow hydrangea in a pot. As long as you follow the fundamentals of caring for hydrangeas, the procedure is rather straightforward. Select a pot with at least an 18-inch diameter to accommodate the mature size of the particular hydrangea you are growing. In order to maintain the constant moisture level that hydrangeas demand, look for non-porous containers. Excess water will be able to adequately drain thanks to drainage holes. Consider growing dwarf hydrangeas like Buttons ‘n Bows, Mini Penny, and Little Lime.
How do you keep hydrangeas from wilting?
Morning irrigation on a regular basis can assist stop withering. Some hydrangea cultivars simply can’t stand the heat. No matter how much water you give them, they will begin to wilt in the afternoon heat. Mulch applied in layers can help soil retain moisture and stay cool. You shouldn’t be concerned if your hydrangeas bloom again once the day cools. A little midday wilting is preferable to overwatering and drowning your hydrangeas.
Where to plant hydrangeas:
- A location with morning sun and afternoon shade is ideal. They’ll take more sun if you reside further north (possibly full sun all day).
- Think about the mature size and give it lots of room to expand.
- Pick a location with great drainage. If necessary, add compost to the soil.
- Plants won’t thrive if they are planted too close to a tree because of root competition and a lack of sunshine.
- Planting should not be done in open locations where strong winds could snap stems.
How to plant hydrangeas:
- By amending your soil with up to 15% organic matter and an all-purpose slow-release fertilizer, you may give your plant a good start (use half of what is recommended).
- Plant a little higher than you did while you were in the nursery container.
- In order to give the roots plenty of freedom to expand, the planting hole should be two to three times broader than the root ball.
- Before planting, gently untie the roots from their pots.
- Add the modified dirt back in and thoroughly water it.
- Planting in groups requires a minimum distance of 3 feet (more, if planting larger varieties).
Planting hydrangeas in pots:
- Put potting soil in a bag rather than garden dirt.
- Slow-release fertilizer should be added.
- For watering, leave 1 to 2 inches between the soil’s top and the pot’s rim.
- Make sure the pot includes space for the plant to grow and drainage holes.
Do I need to protect my hydrangea throughout the winter?
Here is professional guidance on how to put hydrangeas to bed for the winter season from guest bloggers Megan Nichols and Jessie Jacobson of Tonkadale Greenhouse in Minnetonka, Minnesota. (They may have more hydrangea trees and shrubs in their zip code than almost anywhere else in the United States, so they are aware!)
The temperature has dropped, and autumnal symbols can be seen everywhere. The garden needs to be put to bed soon. Hydrangeas reward us with large, stunning, and prodigious blooms all season long. You may say that they are givers. It’s time to return the favor now. It’s time to tuck the hydrangeas in with kisses and wishes for sweaty dreams.
Here in Minnesota, our moods can fluctuate as drastically as the unpredictably harsh winter weather extremes, snowfall, and freeze/thaw cycles. Despite the fact that many hydrangeas are regarded as hardy, all of this can confuse them. To survive the winter and come back bigger and better the next year, they require some care. Although hydrangeas cultivated in warmer areas don’t need as much post-season primping as those grown in our zone, there isn’t a single thing that wouldn’t appreciate a little tender loving care right now.
Utilize these suggestions to get the most out of your hydrangeas so that you can be the one to present at this time next season!
(Is pruning in order? No and yes. Here is our recommendation for which hydrangeas should be pruned right away and which should wait until spring.)
Don’t Stop Watering
Make a commitment! I shall water my hydrangeas till the earth freezes solid, you declare while raising your right hand. really good Hydrangeas are thirsty plants by nature, so it’s essential to give them regular, deep watering. We don’t need to get all linguistically nerdy right now, but their name literally means “hydration.” Winter’s cool, dry winds completely drain the moisture from the vegetation, and hydrangeas don’t use lip balm. It need not be heated in order to be dry!
If a freeze is not a concern where you live, water deeply but sparingly during the winter depending on how much rain you get.
This is how: Making a small hole in the side of a 5-gallon bucket, filling it with water, and placing it at the base of the plant while it slowly drips out of the bucket is one method. Another option is to lay your hose at the base of the plant for about an hour with the water turned on to a gentle drip.
Give Them One Last Hearty Meal
Composting your hydrangea beds in the fall will give them a boost for the upcoming growing season. Everyone feels better after a full night’s sleep and a filling breakfast. This also applies to hydrangeas. After a lengthy winter’s hibernation, they will be ravenous for some nice compost. Compost can decompose during the winter if it is used now, making nutrients easily accessible in spring. A few inches of compost is advisable even in regions without a deep cold. Only compost is being discussed here! Don’t give your hydrangeas fertilizers that are high in nitrogen because this can encourage them to produce new foliage growth.
This is how: Before laying down mulch in colder climates, top dress the area with compost, well-aged manure, or other organic material after the ground has frozen. This organic fertilizer, which is rich in nutrients, will decompose over the winter, making nutrients available to the plant in the spring. Apply compost in the late fall or early winter in zones that are warmer.
Mulch Matters
Mulching helps keep moisture in and weeds out in warmer climates while shielding the crown and roots of your hydrangeas from harsh winter temperatures in colder climates. Snow serves as a natural insulator if everything goes as it should. Plants suffer during strange winters with little snowfall and extreme temperature changes. Apply a thick layer of mulch around the plant’s base to offer hydrangeas the best chance of flourishing. While decorative mulch is useful, straw, marsh hay, or dead leaves are suggested instead.
This is how: Apply a 6–8 layer of mulch once the ground has frozen (or late fall or early winter in zones with milder winters). This shields plants from the heave-ho of springtime freeze/thaw cycles, which can yank them out of the ground. Inviting mice to make this their snug winter home, causing rotting and illness, or tricking the plant into believing it’s time to bud, are all consequences of mulching too early. Be patient; you don’t have to do things early simply because your neighbors are.
Keep Them Cozy
The amount of winter cold determines whether or not hydrangeas require protection. Winter protection is not required in zone 7 if the air temperature stays above zero degrees. Wrap or totally cover barely hardy hydrangeas in chilly areas. This is crucial for plants that bloom on old wood, such hydrangeas with mop heads and large leaves. The most recent types of mop head/big leaf hydrangeas, however, bloom on both fresh and old wood, so it’s important to keep that in mind. In their favor and ours! Hardier hydrangea varieties like the paniculata and arborescens don’t often require additional winter care, although really low temperatures might cause its limbs to die back. Consider covering if a colder than usual winter is forecast.
Here’s how: Wrap plants loosely in a few layers of burlap, making sure to tie it off with strong twine. Making a mulch mountain and covering the majority of the plant is an additional choice. Smaller, newly planted specimens respond well to this technique.
There’s Still Time To Plant!
The first three varieties of hydrangeas can be grown here in Zone 4; oak leaf hydrangeas can also be grown in warmer climates (zones 5 to 9). The optimal time to plant shrubs is in the fall. Just make sure to do all of the aforementioned things, including watering and mulching.
Here are some of our favorites that you can plant now for stunning blooms the following spring.
Panicle Hydrangeas
These late blooming hydrangeas, sometimes known as PeeGee hydrangeas (summer into early fall). They are covered in elongated, conical flower heads that emerge white or green and blush into pinks and peaches as the season goes on.