How To Identify Hydrangea Varieties

These bigleaf hydrangeas are the most common varieties. These are easily recognized thanks to their substantial purple, blue, and pink flower heads. Mophead and lacecap leaves are typically fairly thick and crisp, a little glossy, and frequently heart-shaped. Their edges have rough teeth. They measure around 4″ to 6″ long and 3″ to 5″ wide, but they can occasionally get even bigger. Because leaf stems (petioles) are small, leaves typically cling closely to main stems. Small black or crimson streaks or spots are frequently visible on stems. The leaf shapes of mopheads and lacecaps are the same.

What kind of hydrangea do you have, and how can you tell?

The aforementioned plant traits make it simple to distinguish between climbing and oakleaf hydrangeas, hence they will not be covered in this section.

Shape of the Flower Head

  • A paniculata type is most likely present if the flower head is formed like a cone.
  • It is either a macrophylla or an arborescens kind if the flower head resembles a ball or a flat disk. Visit the section on Flower Color.

Robert Pavlis’ photograph of a hydrangea arborescens from the side, highlighting the flower’s dome-shaped crown

Flower Color

  • A macrophylla type is present if newly opened blooms feature blue, purple, or pink blossoms.
  • An arborescens type is present if the flower buds initially seem green, then turn white, and finally turn green or greenish brown as they ripen.
  • You likely have a macrophylla kind if the flowers are white when they first open and remain white as they age. Although they are less common, white flowered macrophylla varieties do occur.

Note: Recent breeding is beginning to develop arborescens with flowers that have a pink tint, such as “Eco Pink Puff.” Future cultivars should have a stronger version of this pink.

What distinguishes a hydrangea serrata?

Zones: 5–9. partial shadiness blooming season: summer Size: 2 to 4 Scattered: 2 to 4 pink, red, and blue Old wood of various kinds and young wood both bloom (some newer varieties such as Tuff StuffTM)

Mountain hydrangeas don’t grow as large but are extremely similar to the lacecap kinds of big leaf hydrangeas.

Like Hydrangea macrophylla, Hydrangea serrata blooms on old wood, but because it’s a mountain hydrangea, it has hardier buds. They are therefore less susceptible to being harmed by late frosts.

Similar to Hydrangea macrophylla, the acidity of your soil can cause the blossoms to shift from pink to blue (and vice versa). (They change color to pink in more alkaline soil and blue in more acidic soil.)

This Hydrangea is a fantastic option for growing in containers because of its compact form.

Identification

Hydrangea serrata resembles a more compact Hydrangea macrophylla, as I have indicated.

However, they might be mistaken for a young Big Leaf Hydrangea with ease. Consequently, it may be difficult to recognize them.

Fortunately, they also need the same growing and care as their larger counterparts, so treating them as such won’t pose any issues.

Common varieties:

  • Reblooming mountain hydrangea Tuff StuffTM with pink or blue flowers (depending on the soil pH). Purchase HERE.
  • Tough Stuff Purple or blue flowers, or reddish pink and green blossoms (depending on the soil pH). Purchase HERE.

Should hydrangeas undergo a fall pruning?

Only prune these hydrangeas in the summer after bloom, not in the fall. In August and September, old wood hydrangeas begin to form their bloom buds for the following year. It is advisable to delay pruning your hydrangeas until the following year if you don’t do it right away. If not, there won’t be any blossoms the next spring.

Which hydrangeas ought to be left unpruned?

If and when you prune is the key to happy, healthy hydrangea flowers. Of course, fertilizing and offering the ideal environment have a lot to recommend them. However, if you don’t prune properly, your efforts will be in vain. Deadheading is not the same as trimming. Pruning refers to more drastic cutting to preserve shape or remove dead growth. However, feel free to discard spent blossoms or cut fresh ones to use in arrangements.

Hydrangeas can bloom on either fresh wood or old wood, depending on the species. The wood from which they blossom determines whether and when to prune.

Old wood-blooming hydrangeas do not require pruning and benefit from it. They’ll blossom more abundantly the next season if you leave them alone. But feel free to deadhead or gently thin. Just keep in mind that while new growth may appear, it won’t bloom until the following season. In our region, four different species blossom on aged wood. Additionally, they are not limited to the hues displayed here.

Climb using suckers. On your wall or trellis, resist the desire to remove the dormant growth.

The flower heads are more conical in appearance, and the leaves are large and resemble oak leaves. It’s a pleasant surprise for a hydrangea when its leaves turn reddish-orange in the fall.

They are very comparable to lacecap types, but smaller and with more compact leaves.

Pruning should be done in late winter or early spring on hydrangeas that bloom on new wood. Trim back to two feet to prune to shape. The next season’s blossoms are produced by strong, fresh growth that is encouraged by trimming. In our region, there are two types that bloom on fresh wood. They are also not restricted to the colors displayed.

Oakleaf variants are not included in cone-shaped blooms. Keep the blooms on throughout the winter to provide interest; even dried out, they are quite lovely.

regarded as a wild kind. They often have smaller blooms and leaves than Bigleaf variants and are completely white. They enjoy full sun and can grow very tall.

Knowing whether or when to prune now will help you avoid the disappointment of a hydrangea that doesn’t blossom. Don’t forget that a robust shrub will produce more gorgeous blossoms if it has well-draining soil and good organic fertilizer. Come on in, and we’ll show you where to go to develop your green thumb.

What kind of hydrangea is the most popular?

Summer, ah! A time for sun tea, hammocks, and what’s this? The hydrangea is the summertime flower to have! This popular bushy garden plant doesn’t only come in one size fits all. In North America, hydrangeas come in five primary varieties. While there are many different varieties, most hydrangea only prefer early sun (you can find lots of plants for shady spots in your garden and the best shade perennials to pair with them).

Bigleaf, or French, hydrangeas are the most prevalent variety (Hydrangea macrophylla). Mophead (large puffy balls), lacecap (identical to mophead but with tiny buds in the middle), and mountain are the three categories (similar to lacecap, but extremely cold hardy with smaller blooms). Large, cone-shaped flowers on panicle hydrangeas (Hydrangea paniculata) are typically white but can occasionally become pink depending on the cultivar. These are the only varieties of hydrangea that grow into trees as opposed to bushes.

The United States is home to two of the major hydrangea species. Smooth hydrangeas, commonly referred to as “wild hydrangeas,” can endure hotter conditions and are frequently grown as hedges. These flowers typically have white and green blossoms. In regions with warmer summers, oakleaf hydrangeas (Hydrangea quercifolia) bloom at their finest. Flowers have leaves that change from green to orange to burgundy, and they bloom in white, green, or purple.

Our list is completed by climbing hydrangea (Hydrangea petiolaris). The 80-foot-long vines that resemble these hydrangeas are in fact hydrangeas. Most have substantial, scented blooms.

Find some of our favorites of each species to include in your garden by reading on. They’ll only make your other budget-friendly backyard design ideas better!

This mophead bigleaf thrives in direct to indirect sunlight. In more acidic soils or when aluminum sulfate is added, the variegated petals, which are not all solid colors but have edges in one hue and transition into another, will blossom blue instead of their usual pink color. Since it is a dwarf type, it doesn’t require much pruning to maintain its compactness.

The bigleaf mophead has a catchy name and plenty of blooms to back it up! One of the first hydrangeas to bloom, the blossoms start off pure white before turning bright pink as they ripen. Flowers with sturdy stems stay standing in the garden and make excellent additions to bouquets and decorations.

The mophead flowers of another bigleaf hydrangea have been cultivated to bloom continuously throughout the season. The enormous blooms start out green, change to pink, and frequently return to green. Unless you have more acidic soil, the default color of bigleaves is typically in the pink and red range.

This beautiful lacecap hydrangea is one of the best at reblooming. Depending on your soil, this plant has compact, double blooms that are either blue or pink. The durable choice for gardeners in northern zones, the blossoms resemble water lilies.

This natural oakleaf hydrangea has double florets, which results in a wonderfully large, conical bloom that matures to green color. These can withstand full sun and up to four hours of shade.

The blooms on this oakleaf cultivar begin as a bright white before changing to a brilliant pink. Once fall weather arrives, the rich green leaves become a deep burgundy color.

The blooms on this extremely hardy smooth hydrangea can reach a foot in width. This particular type has lime green blossoms that become dazzling white before returning to green. They make wonderful bouquets and centerpieces due to their robust stems that are resistant to flopping.

This hydrangea’s silky, ruby-red buds open to reveal a lighter pink blossom with sharp edges. Its dark green foliage dramatically contrast with the vivid bloom. This plant is simple to care for and blooms best in a location that receives at least six hours of direct sunlight each day.

A popular plant in gardens is this panicle hydrangea. When planted as a hedge or scattered around your garden bed, the pistachio-colored blossoms look really stunning. The blossoms shift from white to blush to deep pink as fall approaches. In your garden, they can be groomed into beautiful tree shapes.

Anomala petiolaris, a climbing hydrangea, has heart-shaped leaves and big white flower clusters. Although it grows well in both sun and shade, afternoon shade is essential in the Deep South and western zones 9 and 10.

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What hydrangea is the most beautiful?

Endless Summer BloomStruck Hydrangea, which can withstand extremes of heat and cold, is comparable to Summer Crush in that it consistently blooms on both old and new growth. From early summer until late fall, it will produce lovely blooms. Depending on the soil pH, BloomStruck has deep blue-purple or deep pink flowers with super-strong red stalks and a more compact growth habit.

Let’s Dance Can Do

Let’s Dance, We Can As opposed to most bigleaf hydrangeas, which only produce flower buds at the top of the stem, hydrangeas produce flower buds all the way down the stem. This means that even if there is a late-season frost, flower buds may still form in the early summer. Depending on the soil, the plant has gorgeous lavender or strawberry pink lacecap blooms.

Limelight Prime

Large blooms on limelight hydrangeas that shine in direct sunlight are their trademark. From bud to bloom and beyond, the new Limelight Prime panicle hydrangea outperforms the old Limelight in every way. With bolder, better flower color and much stronger stems, it blooms earlier. It is also one of the easiest hydrangeas to grow and is a more useful, compact size.

Fire Light Tidbit

Fire Light Tidbit hydrangea is the tiniest, tidiest panicle hydrangea available. Its height and width are only 2 to 3 feet, yet it has a lot of low-maintenance beauty. It has large, dense panicles of early- to mid-summer white mophead blooms that almost completely cover the textured green foliage. It produces a compact, mounded plant that looks great in landscapes, flower gardens, and even in containers because to its strong, thick stems.

When ought hydrangeas to be pruned?

Depending on which group the plant belongs to, the timing and extent of pruning are determined:

Advice on Pruning for Group 1:

  • As the days get shorter and the weather gets colder in the late summer and fall, buds for the following year’s blooms start to form.
  • Typically, removing dead, diseased, or damaged branches is all that is required to preserve shape, size, and a healthy plant. Otherwise, gentle pruning ought to be practiced.
  • In the summer, trimming should begin as soon as flowering ends, but no later than August 1. Pruning should not be done in the fall, winter, or spring because you risk removing fresh buds.
  • Tip-pruning the branches in the spring as the leaves begin to appear can promote more numerous, smaller flower heads as opposed to fewer, larger flower heads.

Advice on Pruning for Group 2:

  • On the growth of the current year, flower buds form.
  • Early in the spring, as the leaves are starting to emerge, prune.
  • Just above a node, prune branches back by half to a third.
  • After that, prune any fragile or spindly branches.
  • Minimal trimming encourages huge, strong bushes with many of tiny flower heads in H. arborescens. Hard pruning between 12 and 18 inches from the ground, or even all the way down, will result in fewer but larger flower heads that may flop if unsupported.
  • For H. paniculata, remove the surrounding smaller wood while leaving the larger stems in order to establish a sturdy foundation.

Pruning may be connected to flower head size. Shoots will grow more vigorously and flower heads will be bigger and fewer with more rigorous trimming. Smaller but more numerous flower heads may result from less aggressive or tip pruning.

Consideration of hydrangeas’ mature size is the best piece of advise. Place them in a location where they won’t outgrow and won’t need a lot of pruning to keep them in check. Hydrangeas don’t need to be pruned precisely or often; as long as dead wood is removed, they will remain healthy and continue to develop and bloom.