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Hydrangea winter damage

Winter Damage On Hydrangea - Garden Answer

  1. This is winter damage. At this point any of the canes that don't have leaves will not form them so you should prune those out by cutting them all the way down to close to the ground, or to just above the first set of leaves you come to from the top down
  2. g? (written in summer of 2015) A: The top 3 - 5 buds on a bigleaf hydrangea are the ones that send out bloo
  3. Because hydrangeas go dormant during the winter, you may not notice winter kill on hydrangeas until spring. Your first hint of damage may be the fact that no green shoots emerge from your hydrangea in March or April. Preventing winter kill in hydrangeas is a matter of protecting the shrubs, including their nascent buds, from winter's wrath

Hydrangea - Winter Damage Walter Reeves: The Georgia

Extreme cold weather can cause damage to both the leaves and flowers of a Hydrangea. Leaves damaged by the cold will turn red, brown, or even black and become cracked and brittle. And if the drop in temperature was late enough in the year that your Hydrangeas have already bloomed, those flowers will most likely wilt and turn brown If your macrophylla hydrangea has a hardiness zone classification where the lowest zone is even slightly higher than the one you live in, your hydrangea will very likely fail to form spring buds. Even if the zone is the same, if your shrub is too exposed to winter weather, this might also damage the buds Hydrangea leaves can turn black or brown for several reasons but if they have changed colour from a healthy green over night then this is because of frost damage Leaf Spots (Cercospor a species and Phyllosticta hydrangea) Cercospora manifests as circular purple or brown spots on the bottom of the plant. As the lesions get larger, the leaves can turn yellow and fall off the plant. Watering without getting the leaves wet will help to prevent these diseases Winter Damage to Hydrangea & Crape Myrtle. This past winter has been recorded to be one of the worst for winter damage to foliage of plants in the past 25 years. I have witnessed winter damaged Hydrangea and Crape Myrtle on many properties I have visited and have been getting many inquiries as to how to remedy the damage that has occurred

The first step in hydrangea winter care is to cut away the old wood at the base of the plant, and remove any dead or weak branches by cutting them off at their base. Be careful not to cut off healthy wood, as this wood will be where your hydrangea will bloom from next year. In-ground Hydrangeas - Winter Protectio For example, many French hydrangeas (Hydrangea macrophylla), like the one above owned by faithful reader Ellen Grooms, either was a total mass of naked brown stems or looked dead at the top with only green shoots coming up from the bottom. Time to Prune Winter-Damaged Plants Yes, many hydrangeas leafed out early this year, then were hit hard by frost that caused damage to leaves and stems. Fortunately, these are tough plants and many types can be cut back to the ground..

Deer Damage on Hydrangeas in Winter. December 21, 2019 / Hydrangea Care, Hydrangea Winterkill & Winter Protection. This is the time of year to be alert to deer damage on hydrangeas. The winter weather pattern of deep cold, snow, and ice storms has made it increasingly difficult for them to get around and find food sources to sustain life Winter temperatures or an exposed location: the germ of the flower bud might get zapped by winter temperatures (below five degrees Fahrenheit) or cold winter/spring winds. 4. Too much nitrogen: sometimes lawn fertilizer gets repeatedly washed or spread onto neighboring hydrangeas and this can contribute to the growth of leaves at the expense of. Effects and Remedies for Frost Damaged Hydrangeas by Elaine Homstad, Fairfax Master GardenerFigure 1. Damage on Hydrangea macrophylla 'Bailmer' When your hydrangeas broke dormancy in March, you probably marveled at the quick growth of foliage, especially on your Hydrangea macrophyllas (Bigleaf) and H. quercifolia Hydrangeas grow and bloom best in areas where they can get at least a few freezes in the winter. So, unless one lives in a very cold climate, hydrangeas do not need to be covered when normal winter temperatures are experienced. An exception to the rule of no need to cover hydrangeas occurs in the spring

If during the day the surface of the earth dries completely, you should water the hydrangea. The amount of water should be about 1 gallon, depending on the size of the bush, depending on how strong the heat should be watered every two days or even daily. Frequent watering can cause rot of the crown or roots. As a result, the plant may die It is also the concept behind rejuvenating old or very overgrown hydrangeas - removing upto 1/3 of the oldest canes each year at the base encourages the development of fresh, vigorous basal shoots. Older growth can indeed be 'spent' or fail to bud, whether due to old age or to cold damage - this is called dead wood How to Keep Hydrangea Leaves From Burning in Full Sun. Hydrangeas (Hydrangea spp.) come in many varieties and colors. Most are deciduous shrubs with prolific flowers in the summer and fall. The.

Winter Kill On Hydrangea - How To Protect Hydrangeas From

Hydrangeas that experience winter temperatures of no less than 5-10 degrees do not need winter protection. If the temperature falls into the single digits for only a few hours at a time, the hydrangea should not be harmed Frost damage occurs when plants lose more heat than they receive and cold weather is trapped under the plant by warm air above its surface, causing ice crystals to form on the surface of the plant... Avoid fertilizing winter-damaged plants; many homeowners are just now seeing the full effects of our fiercely cold and long winter. Hydrangea and butterfly bush (Buddleia) seem particularly. Sub-zero temperatures can severely affect how your hydrangea look. Fortunately, most damage will be superficial, and you can help your hydrangea to recover from frost damage. Here in the UK, of course, winter freezes can be a regular occurrence - even in the most southern reaches of England, a few frosts are par for the course. But the.

How do I protect my ENDLESS SUMMER Hydrangea over the winter

  1. aesthetically and physiologically important symptom of damage. Cultivars of Hydrangea macrophylla and Hydrangea serrata were more tolerant of full-strength salt spray than cultivars of H. paniculata, H. anomala and H. arborescens. At half strength but not full strength,.
  2. Potted hydrangeas are a great solution for decorating patios where it is impossible to plant them in the ground. However, there may also be problems. In fact, potted hydrangeas wither more often than in the garden. To revive a wilted potted hydrangea, you need to move them in full shade and check the soil moisture
  3. Storm damaged Hydrangea. Hi all....we had a major storm here & all my Hydrangeas were flattened by heavy snow (which has now melted.) I have 20 plus Hydrangea that were damaged. The snow melted very fast & the temp. rose to 60 the day after the storm. Do you think the plants will flower next year
  4. We are zone 5a, 53821, but the last winter seems to have taken out everything above the snow cover line on our climbing hydrangea; the lowest foot is lush green and beautiful, but above that is brown and looks dead. We are waiting a week or so more to see if any of the damaged parts have survived. However, most likely it will be a major trim job

Another culprit is damage from frost. Hydrangeas that bloom on last season's growth (old wood) will need a layer of straw or mulch to protect the stems through winter. Pruning may also be to blame—hydrangeas need only light pruning to remove diseased or dead branches. Don't prune away stems that will bloom When hydrangeas experience frost damage it turns the leaves and the new buds to a light red color. More serious damage turns them to a brown/black color. You will also notice they have wilted. Bigleaf hydrangeas have weak dormancies and their flowers start to bud quickly come spring so these varieties are the most susceptible to damage from frost hydrangea species with cloth, burlap, or heavy paper to protect flower buds. Plastic should never be used as winter protection because it may damage tender plant tissue. Hydrangea species and cultivars Climbing hydrangea Hydrangea anomala petiolaris Vigorous climbing vine with nice exfoliating bark that attaches itself by rootlet holdfast Oakleaf hydrangea (Hydrangea quercifolia) Oakleaf hydrangeas are native to the Southeastern part of the United States. Although this shrub may suffer some winter damage and flower bud loss in northern gardens, its striking foliage and exfoliating bark are enough justification to grow it

Winter Damaged Hydrangea & Crape Myrtle-How to Treat - A

Hydrangeas are quite susceptible to winter damage--last year we had great blooms, but it was the first year in three that we had flowers due to winter kill the two years before. Big leaf hydrangeas have their flower buds set when they go dormant in the fall They just need time. Foliage takes 2-4 weeks to leaf out in early Spring when you have late frosts but, weather can also affect the speed of recovery. When temps get too hot (note we are close to starting summer), the plants may decide to wait until temperatures recede in the Fall of wait until next Spring 2022 Blooms, dried. Hydrangeas don't dry well when freshly flowering. It's best to wait about six to eight weeks after blooming until the head has a papery appearance. Cut in the morning and be sure to remove all leaves from the stem. You may hang the cut bloom upside down or in a vase with just a few inches of water Optimal Temperature for Hydrangeas. Hydrangea shrubs (Hydrangea spp.) produce showy blooms in an array or colors, from pastel pinks to startling baby blues. Soil pH affects their color, making it. Bring in movable pots and lawn decorations or wrap large statuary to avoid winter damage. Store empty terra cotta, clay or plastic pots in a dry, protected area to avoid cracking. Stop pruning.

Hydrangeas are frost resistant to a degree. Some hydrangeas will tolerate cold temperatures and frost better than others, but correctly prepping them for winter, will minimize the risk of any serious damage. Hydrangeas can bounce back from superficial winter damage, but not severe winter dehydration or root damage 13 April. One of our plants in the ground for some years has suffered with frost damage over the last few days. We keep hoping that the low temps will go away but that seem to get lower and lower and then the NE winds. Plants though on the whole do come back and that is what we all look forward to. 1 Damage can occur anytime before the plant is completely dormant, and most damage occurs due to freezes when temperatures drop below the norm during early fall, late spring, or winter. A Guide To 7 Types of Hydrangeas. It's easy to see how the hydrangea has become such a timeless flower Sub-zero winter blasts damage plants By: Sandy Feather ©2014 Penn State Extension I continue to receive many questions about the viability of plants that suffered severe damage from winter's subzero blasts. Boxwood, English ivy, pachysandra, rhododendrons, a variety of needled evergreens, hydrangeas, roses, and subshrubs such as butterfly bush all took a hit

Some susceptibility to leaf spot, rust, mildew, bud blight, and bacterial wilt. It is susceptible to damage by deer and has brittle stems that are easily wind damaged. More information on Hydrangea. See this plant in the following landscapes: Flower Bonanza Garden Border Garden- Pathway Flower Bonanza Garden Storage Cottage Hydrangeas in the Garde Decision Time For Winter Damaged Plants. April 11, 2021. Elise Hall. On March 7th I wrote, Patience is the key for winter-damaged landscapes.. I went on to say, The best plan, for now, is to pause and wait 2-3 weeks before making pruning and replacement decisions.. Then I boldly said, By the end of March we will know more (about. Hydrangea Oakleaf - Pruning, Winter Care and Fertilizing. Fall Color. Crossing, badly formed or damaged branches should be removed back to a main branch. This plant grows and develops best in acidic soil. Most of the soil, all of the rainwater and all of the ground water in southeastern Wisconsin is basic or alkaline If you missed the mark and your hydrangea is damaged during the winter, you can always cut back the dead, Winter-damaged stems all the way to the living wood. It may not bloom again the next season, but it'll be alive to do so in another year

Butterfly bush and hydrangea could be suffering winter damage

How to Help Your Hydrangea Recover From Damage Due to

Location. Bigleaf hydrangea prefers morning sun, afternoon shade and moist, well-drained soil. Avoid planting it on hot, dry, exposed sites. Cold damage to the buds may occur in winter and late spring, so be prepared to provide some winter protection by covering the plant with an old sheet, blanket or cardboard container when temperatures drop below freezing Hydrangeas have 23 different species, although only five are commonly grown flowers in the United States. The most common Hydrangea is the Macrophylla, often used by florists and gardeners. Favorite colors of Hydrangeas are blue and purple, although they come in several more colors such as white and pink Overall, panicle hydrangeas aren't finicky about soil, but good drainage is a must. Soils that are too wet lead to root rot, so avoid planting them in any area that stays wet for any length of time. Aside from that, any average soil in your landscape will do. They can even grow in clay soil, provided it is well-drained 1. Consider the age of the hydrangea bush. A good rule of thumb to follow is that 1st year sleeps, 2nd year creeps, 3rd year leaps! If you planted a young hydrangea bush, you may not see blooms for at least 2 years. Younger hydrangea plants tend to be the ones sold in anything less than a one gallon pot. If you purchase one of these plants, be.

Annabelle hydrangea with damage from hydrangea leaftier moth. That will trap moisture, inviting disease, and will also overheat on warm winter days, like a car with closed windows. If this. No winter damage. This is a huge benefit because this type of hydrangea does not carry any flower buds into the winter that need to survive all the way through winter into summer of the following year Prune hydrangea macrophylla right after the flowers fade in late summer to remove weaker shoots at the base of the plant. Also remove any dead or damaged growth. Protect hydrangea macrophylla from winter frosts, freezes and snow beginning in November or December. Tie the shoots together in a bundle using soft twine and wrap the bundle in burlap. After this period, the hydrangeas should go dormant in temperatures between 35 and 45 F for six weeks. Additionally, will hydrangeas come back after a freeze? Identifying Frost and Freeze Damage Water inside the plant freezes, causing cells to burst inside the plant. Plants with minor cold damage or chilling, turn reddish The hydrangeas' flower buds do not have very good protective shells for dormancy In fact, it is known as a naked bud because instead of a hard protective shell, hydrangea buds are housed by under develop leaves. This unfortunately leaves the buds susceptible to damage in extreme conditions. And extreme conditions we had

The bigleaf and oakleaf hydrangeas (H. macrophylla and quercifolia) can lose their buds to winter damage. To protect against harsh winters, build a chicken wire enclosure around the hydrangea plant. Fill it loosely with shredded leaves to a depth of 10-12 (25-30cm). [12 The lacecap hydrangeas in my own garden are in the same shape. This was a very tough winter for many trees and shrubs. Buddleia, crape myrtle, Leyland cypress, boxwood, azalea, gardenias, and many others are showing varying degrees of cold damage New wood hydrangeas bloom later than old wood hydrangeas because the younger stems take longer to reach blossoming. Their new buds will form in the winter, so don't prune later than the fall. [9] X Trustworthy Source University of California Division of Agriculture and Natural Resources Extension program of the University of California system. Reblooming hydrangeas, also known as remontant hydrangeas, are types of big leaf and mountain hydrangeas that have the unique ability to flower on both old and new wood. Even if the buds are damaged in winter weather, the plant can still flower on wood it produces that season. Reblooming hydrangea varieties include the Let's Dance series.

Introduction Deadheading is very common practice with flowering shrubs. In a nutshell, it means chopping off flower heads. The process involves removing any fading blooms from your shrubs to allocate energy in the plant toward seed production and new growth. Deadheading is also recommended because it prevents your shrubs from looking like they are dying Pruning, winter damage and fertilization can all prevent blossoms. The pink and blue flowering hydrangeas typically flower on old wood. Often our winters or overzealous pruning kills or removes all the old growth that is needed for flowering. A little winter protection may help get the stems through the winter. Encircle the plant with hardware.

A Guide to Hydrangea Winter Care - The Spruc

How to Revive a Dying Hydrangea Plant - Gardener Repor

  1. g from the.
  2. Winter damage: The fifth thing that may affect your blooms on hydrangea is winter damage. Even species that are considered hardy to our area may suffer damage from late spring frosts. One of the.
  3. Most varieties bloom on old wood, i.e., wood that grew and produced flower buds during the previous year. Therefore, early or late freezes or bitter winters may damage the flower buds. The other reason that hydrangeas don't bloom is pruning at the wrong time. If you cut back a hydrangea between the autumn and early spring and it blooms on old.
  4. Cover your hydrangeas in late winter/early spring if you live anywhere north of Illinois. The sleet and snow - sudden freezes and drops in temps - will kill the deep roots sending out messages to the plant. Even though it looks like nothing is happening, cover them up
  5. How to Prune Winter Damaged Needled Evergreens. hydrangeas, weigela, and butterfly bush or buddleia can regrow from the roots when the tops die back. Some hollies and viburnum also regrow from the roots. It is always best to research specific plant species before taking any action. And remember that cold-damaged crapemyrtles can leaf out.
  6. Hydrangeas form their flower and leaf buds in fall, so freezing temperatures can kill off the buds before they have a chance to flower. This eventually leads to not enough leaves growing in to support the plant and it dies. Protecting the hydrangea during winter helps to ensure the plant is able to bloom each year

Rodent damage is another winter problem. Another problem shrubs have in the winter is rodent damage. When snow falls, rodents such as rabbits, squirrels, voles and mice tend to eat the bark of your trees and shrubs, this can weaken or even kill your expensive landscaping Some small trees and shrubs are prone to damage to their branches after a harsh winter, but because the roots are more protected than the top growth, many plants will re-sprout from the ground Most Hydrangeas are deciduous. Meaning they lose their leaves and in winter. Cutting back or pruning plants is a gardening practice that increases the vitality of a plant. When it comes to hydrangeas, many gardeners do not know what to do, so let's find out what options are available. You don't have to cut back hydrangeas

How to Identify and Treat Hydrangea Diseases Gardener's Pat

winter damage hydrangea - A GUIDE TO LANDSCAPE DESIGN

Butterfly bush, hydrangea -- how to prune out winter damage. Bill Cary. wcary@lohud.com. Many of the damaged plants, especially hydrangeas that bloom on last year's growth, are unlikely to. 'Pee Gee' hydrangea (Hydrangea paniculata) is a woody, tree-like hydrangea that produces white flowers in large clusters that are somewhat pyramidal in shape. In mild climates, it may eventually reach a height of 25. Somewhat tender, 'Pee Gee' may suffer from winter damage at our latitude which tends to keep plants smaller Understanding Hydrangeas Hydrangeas are one of the best loved garden plants, but also one of the most misunderstood. This is when the flower buds on the old wood are likely to be damaged and are usually killed outright. If you protect your hydrangeas over winter, leave the protection in place until temperatures even out a bit. If you do.

Dealing with Frost Damage - Naylor Landscape Management

Here was a hydrangea that bloomed all summer long on both old and new growth. That old and new factor made a big difference. It meant that even if severe winter cold killed the plant (and its dormant flower buds) to the ground, it could still grow the next year and produce flowers Hydrangeas as cut flowers are perfect if you are feeling hydrangea-starved. That describes me a week or two ago. Then we had two consecutive days of temps in the 60s. That gave me a terminal case of spring fever! But I knew enough not to rush out and start playing with my hydrangeas. Living in zone 5, there's a lot of winter still ahead of me Frost damage. A late frost can damage developing buds so that they never bloom. In cold climates, before winter you can try mounding up mulch or straw about a foot high around the base of the bushes to protect and insulate the developing flower buds. Too much shade/not enough sun Snow Queen Oakleaf hydrangea (Hydrangea quercifolia 'Flemygea') - This one grows 6′ by 6′. It has great flowers that don't flop over like some of the regular ones and get 6 to 8 inches long. Dirr says it holds up well in full sun and is winter hardy down to at least -22 degrees. This is definitely one to look for if you are in zone 5

Hydrangea arborescens 'Annabelle' Frost Damage. We had a couple nights down in the 33°-36°F range and ended up with some frost. I covered most of my 'soft' plants, and my newbie plants, but I didn't cover my Annabelle hydrangea that are now the size of small shrubs growing all new wood from being cut to the ground this winter. Here is what. In general, many hydrangeas don't demand any pruning. There are two main reasons to prune hydrangeas. You should trim hydrangea when necessary to remove dead or damaged stems. This is usually done after winter, when some stems die from the cold, but you might also need to cut back hydrangeas after storm damage Adding a 6- or 8-inch layer of organic mulch, such as straw or shredded bark, in fall helps conserve soil moisture and keeps roots growing as long as possible.In cold-winter areas, mulch also protects the plant from freeze-thaw cycles that cause the ground to expand and contract. These cycles can heave roots out of the ground and damage them

Why doesn't my hydrangea bloom - Ask an Expert

Learn About Hydrangea Winter Protectio

It was formerly listed and sold as Hydrangea macrophylla var. serrata. It is native to moist woodland mountain valleys in Japan. It is a deciduous shrub with a rounded habit that, in the St. Louis area, typically grows 2-4' tall and as wide unless damaged by harsh winters or pruned smaller. It generally features toothed, ovate, dull green. After pruning, fertilize the hydrangeas in the spring to further stimulate new growth. Proper Pruning. To begin pruning, it is best to first remove any dead or diseased material. Sometimes hydrangeas can get some winter damage to tissue that did not have a chance to harden off before winter temperatures, Kelley said Our Hydrangea Guide provides summer plant care tips for all you need to know about growing hydrangeas—from watering to fertilizing to pruning to winter care. About Hydrangeas Unrivaled in the shrub world for beautiful flowers, these elegant plants are easy to cultivate, tolerate almost any soil, and produce abundant blooms

Cut Your Losses -- Time to Prune Winter-Damaged Plants

In his article 'Consider improved plant varieties when replacing winter-damaged landscapes this spring' Cramer refers to Hydrangea paniculata. A plant group receiving a lot of attention from plant breeders lately is. A picture of Hydrangea paniculata 'Kolmakilima' from Dutch breeder Peter R. Kolster illustrates the story Sometimes, hydrangeas can get some winter damage to tissue that did not have a chance to harden off before winter temperatures, Kelley said. You will need to remove this tissue as well 2) Shut the plants down before winter. Hydrangeas will continue to grow as long as there is ample water, fertilizer and warm weather. Later season growth is tender growth and more prone to winter injury, so useful to shut the growth down before winter comes. In late summer and fall, stop fertilizing and cut back on the water Hydrangeas are deciduous plants, so it's best to propagate them and give them some time to develop roots before they go dormant in winter. Step 1: How to take Hydrangea cuttings. To give your Hydrangea cuttings the best chance to root, start with healthy plants free of pests such as aphids or any disease Paniculata hydrangeas Limelight should be pruned in late winter before new stems emerge in order to avoid cutting off the buds. They bloom on new wood. New wood refers to the current year's growth. Prune out any dead or crossover branches and any branches that interfere with the look you are trying to maintain

Frost-hit hydrangeas able to bounce back: The Ground Crew

More About Pruning Different Hydrangea Types. Bigleaf Hydrangeas (Hydrangea macrophylla)Even though I'm located in Zone 5, my 'Endless Summer' mophead hydrangea—which usually has huge blue blossoms all summer long—was killed to the ground.Luckily, it has the wonderful ability to bloom on both old and new wood, so even though they were a bit later than usual, there were still many blooms I'm a huge fan of Annabelle Hydrangeas. They perform with little effort and bring so much spark to a dark corner. However, each year I've noticed greater populations of the Hydrangea Leaftier (Olethreutes ferriferana) fusing terminal leaves together.Today, I counted nearly all of the tips of the Annabelle Hydrangeas in our planting bed having these worms cocooning themselves between the.

Deer Damage on Hydrangeas in Winter - Lorraine Ballat

Rabbit damage to stems is usually above the snowline. During the winter of 2018, a rogue rabbit went wild on two of my mature Hydrangea paniculata Quickfire shrubs, each one gloriously tall and wide. I cut the shrubs back in early spring by a distressing 75 per cent. Hydrangeas, especially paniculata types, have a remarkable ability to recover Little quick fire hydrangea, is a selection of Hydrangea paniculata (hy-DRAIN-juh, pan-ick-yoo-LAY-tuh), is a deciduous shrub and belongs to the Hydrangeaceae family.. This is the dwarf form of the popular quick fire hydrangea. The genus name hydrangea derives from hydor which means water and aggeion means vessel - referring to the cup-shaped fruit of the flowering plant Hydrangeas growing under the shade should be watered if they show any sign of wilting. Also, you can add mulch at the base of the plants that help regulate the moisture and safeguard your roots from winter damage. What are the Best Hydrangeas for Deep Shades? A deep shade is an area that does not allow the penetration of direct sun rays Hydrangea petiolaris photo by 阿橋 HQ | Flickr (CC BY-SA 2.0) Where to Grow Climbing Hydrangea Vines. Climbing hydrangea vines will grow up anything, but you might want to be careful where you let them grow. These vines can grow to be large and heavy, so letting them grow on something that cannot withstand their weight may result in damage

Endless Summer® The Original Hydrangea (HydrangeaPinky Winky® Hydrangea (Hydrangea paniculata 'DVP PINKYThe Stately Oakleaf Hydrangea - Rotary Botanical GardensLimelight HydrangeaHydrangea 'Masja'

Cut fall-color hydrangeas for arrangements. Continue to water adequately until frost. Leave blooms on hydrangeas for winter interest. Bring containers inside after the first frost. Cover the base of the hydrangea with wood chips, leaves, etc. for winter protection Yes, Hydrangea roots are shallow rooted and invasive. When it comes to the roots, Hydrangeas root spreads underground. You need 3 - 10 feet of space between each plant, and the roots can be spread beyond the drip line. Hydrangeas are hardy deciduous plants that produce clustered blossoms on shrubs, which normally fall in the range of 3 - 12. Some Hydrangea macrophylla varieties flower on old wood, and must carry their flower buds through the winter. Early or late freezes may damage flower buds and prevent them from blooming. For example, in Zone 5, bloom may only succeed 3 years out of 5, but the plant itself is hardy there Hydrangea paniculata (Pee Gee or Panicle Hydrangeas) Prune this Hydrangea in late winter to keep the plants from becoming overgrown and encourage more new growth, more flower buds, and larger blooms. You can remove dead flowers, as soon as they become unattractive and clean up the overall shape of the plant Root System Damage . The root system of hydrangea is quite weak. It can easily be damaged during planting and transplantation. Small wounds can lead to infection of the plant, drying out of its leaf system. Attention! Pruning root systems will result in stunted growth and various diseases of hydrangeas Hydrangea quercifolia—Oakleaf Hydrangea. Superb native for summer and fall foliage; flowers almost a bonus. Sandy Reed's compact selections include 'Munchkin' (3 by 4 ½' in 9 years) and 'Ruby Slippers' (3 ½' by 5' in 7 years); the latter with upright white inflorescences turning pink to rose and holding the color