So best to stick to the late spring time for best pruning time. PRUNING. If the problem is a wilt, it is possible that other plants in the same container may already be affected. Pain-free gardening: How to plant, weed and harvest safely. Your comments about the Bradford Pear were very kind in my view. Twenty-four species of rhododendron are native to North America. After flowering, deadhead where practical, to promote vegetative growth rather than seed production. Make sure the soil is dry enough to work: Don‘t dig or plant in mud. Clip back iris flower stems as the blooms fade; divide plants in crowded beds. Some say itâs around the Solstice, June 21 to 24. The young growth and leaves are vulnerable to cold and should be pruned in summerâ¦ It’s a firm favourite with wildlife – pollinators and birds are drawn to this variety as it offers food and shelter. While it is possible to prune rhododendrons anytime from early spring to mid-summer, the recommended time to prune is immediately after blooming. General Cold-Weather Pruning Tips. However, very little pruning is required. Do this by lightly cutting back shoots after flowering. The city eventually put the Bradford pear on its “Do Not Plant” list. These are not shade plants; they are recommended for part shade to sun. Water plants during the summer if rainfall is less than 1 inch per week. Clear gutters and direct rainwater runoff away from house foundations. It’s well worth taking the time to prune shrubs in summer – it can promote better displays of flowers and foliage. The best, or at least safest, practice is to trim back in stages over a three-year period. Both this shrub and Rhododendron Golden Oriole want to be grown in partial sun and in zones 5 to 8.; Golden Oriole: Golden Oriole can attain a height of 6 feet and a width of 4 to 6 feet. In other words, the buds for spring flowering form on the plants during the previous summer or fall. Rhododendrons donât need regular pruning unless it is to reduce the size, reshape or remove deadwood. All pruning for Rhododendrons and Azaleas should take place after flowering in early to late summer. If you prune these plants now in late July, you'll cut off most of the flower buds and the shrub won't have time to make more before it goes dormant in fall. Rhododendrons like a slightly acidic soil with a pH of around 5. i have an old bush that grows well. Generally speaking, shrubs and trees that bloom on new growth should be pruned in the winter and early spring, while those that bloom on old growth should be pruned in late spring or summer (i.e., after their flowers fade). Start with an hour or so on a warm day and increase outdoor time until the nights are regularly in the 50 degree range before leaving them out for the season. Subscribe to BBC Gardeners' World Magazine and receive your first 3 issues for only £5. There are over 800 species of rhododendrons ranging from spreading groundcovers a few inches high to 100 foot tall trees and many thousands of registered, named varieties. For flowering trees, it is best to prune spring-flowering trees immediately after they have finished flowering, before they develop next year's flower buds. If you live in a heavy frost climate and you prune in summer/autumn, your rhodo may develop new growth from the prune mark that will get destroyed by a harsh frost. Cutting back at any other time risks losing next year’s flowers. Prune summer-flowering trees in winter or early spring. A not-so-merry Christmas morning for those in the Lehigh Valley with wet basements, Pa. shuts down 40 restaurants, including in Lehigh Valley, where defiant owners refused to follow closure order, Bill White: 20 questions for my 20th anniversary Christmas Quiz. So best to stick to the late spring time for best pruning time. Find out how to prune wisteria in summer. When to Prune. 1. Here’s the problem: In two hours in shade they are both drooping. Almost like something laid on top of it and wrecked each of these particular plants. Jul 6, 2020 - Explore whitbybay whitbybay's board "Pruning rhododendrons" on Pinterest. The following is a list of the shrubs used in the test. Thinning the flowers also can improve … A: Rhododendrons are usually pruned in the spring, right after blooming. Step 2 - cut off dead branches and stems from the shrub In this case, as with Janice, I suspect some form of wilt, which will eventually kill the plants. Make sure containers have adequate drainage holes, as these plants are susceptible to root rot. 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Clean up spilled seed and empty hulls. There are a number of things home gardeners can do to keep rhodies and azaleas long-lived and healthy, according to Jan McNeilan, retired horticulturist with Oregon State University Extension Service. Gibraltar: Rhododendron Gibraltar puts out masses of flowers of a rich orange color.It can grow to be 5 to 6 feet tall with a spread somewhat less than that. Again, others are fine. (Do you know name of the Grinch’s dog? See more ideas about Pruning rhododendrons, Rhododendron, Plants. Cut Joe-pye weed back to three feet tall. Excess sun will cause plants to produce smaller and fewer blooms, and the leaves will show damage. She does not mention if she is keeping the soil evenly moist but well drained. From the team at Gardeners' World Magazine. Provide deer, rabbit and groundhog protection for vulnerable plants. This is easy as 1-2-3, and why azaleas and rhododendrons are considered low maintenance. SERIES 24 Episode 29. They were lovely for a few years but when they matured their huge horizontal branches began to break. Jun 21, 2020 - Explore Georgie Underwood's board "Pruning rhododendrons" on Pinterest. Step 1: When to Prune. Remove dead flowers from rhododendrons carefully; next yearâs buds are just under the old â¦ Prune them right after flowering by cutting back flowered stems to a healthy bud, or to a sideshoot that has yet to flower. Other plants in the same pot as the various ones that passed out are fine. Pruning too close to winter will promote tender growth that is vulnerable to the cold weather. Some people like to undercut their rhododendrons to create a taller tree-like shrub. What to do? I noticed heavy drooping on both plants so placed them on patio in shade. Pruning Osmanthus is the same instructions as Azalea and Rhododendron Pruning and for or all other evergreen shrubs that flower in late winter, spring, or early summer. Dump standing water and remove anything that may collect rainwater to help control mosquito populations. Some people like to undercut their rhododendrons to create a … When to Prune Evergreen Shrubs . Deadhead rhododendrons continuously during the spring to prevent seed set. Set out tomatoes, basil, eggplant and pepper transplants as weather and soil warms. Producing seeds lowers the plant's production of flower buds. Just remember not to prune too late in the summer, because you could generate new growth that would only be killed in the first frosts of fall. My family lived on Bethlehem’s South Side for 40 years. Prune on a mild, dry day. Deadhead sea thrift (Armeria), centaurea, centranthus ruber, dianthus, fringed bleeding heart (Dicentra exima), hardy geraniums, bearded irises, red-hot poker (Kniphofia uvaria/tritoma), catmint (Nepeta), herbaceous peonies, oriental poppies, pincushion flowers (Scabiosa). However, I was left no choice as the plant required a heavy pruning to get it healthy again. Emelie’s situation has similar concerns: Two to three hours of sun is really on the low side for these plants, and the quick wilting after reviving sounds like a problem with the roots. Trimming Your Rhododendrons Written by Doityourself Staff. Removal of spent flower heads is important for promoting next years bloom as well as a good overall shape. Cedar Hedge Trimming Over the Summer â Maintenance Pruning of Rhododendrons. The best time to prune rhododendrons is after a full flush of blooms. How to Prune Azaleas. The early summer flowers make a rhododendron shrub a showstopper in the garden. Spread spring and summer mulch two to three inches deep and applied a few inches away from foundations, tree trunks and other plants. Discover five shrubs to prune in summer, below. The city refused to take responsibility for planting trees that were totally inappropriate for the neighborhood, and they insisted it was the homeowner’s responsibility to maintain or remove them. AURORA - Rhododendrons and azaleas herald spring in Oregon. Before doing any cutting, look to see if there are small shoots near the base of the shrub. They flower on stems grown the previous year, so simply prune flowered stems back to a healthy bud once the blooms have faded. When can I prune them and how much without killing them? A: While it is possible to prune these plants anytime from early spring to mid-summer, the recommended time to prune is immediately after blooming. Hopefully you will see some new growth (on the old wood), which is an indicator that your plants will survive pruning without problems. Before you get to work, make sure your tools are clean and sharp – dirty, blunt tools can aid the spread and entry of diseases. Jane gives tips for getting the best from these showy plants "When it comes to rhododendrons, its position, position, position. Shear back woodland phlox (P. divaricata). How to Prune an Old Leggy Rhododendron. The fewer branches you prune at this time, the better. Pink, red and white azaleas adorn lawns across the South every spring. Now I placed them in water basin and in an hour they were great. If pruning in late summer causes new growth then most, if not all, of the cuts would generate new growth. These plants should be pruned in late spring, after they have flowered. All evergreen shrubs, such as ceanothus, camellias and rhododendrons, are only borderline hardy.The young growth and leaves are vulnerable to cold and should be pruned in summer, once the frosts are over. Continue sowing: Snap, bush and pole beans, cantaloupe, melons, cucumbers, rhubarb, summer and winter squash. Drink water or other non-caffeinated, nonalcoholic beverages. Rhododendrons flower on the prior year's wood. Those shrubs recommended for hedges, topiary or foliage often require regular trimming and tolerate heavier pruning. I’m not sure if there’s a rot or disease in the tree (looks like there’s a hole in the center ) or just weak branches. One of the most beautiful shrubs, the rhododendrons, has stunning blooms and lush foliage. Rhododendrons produce next yearâs blooms just behind those produced this year. If the rhododendron is large and overgrown or already looks unattractive and flowers poorly, it's best to severely prune the plant in early spring. During winter, many varieties have large green leaves year-round, and some of â¦ The best time to prune cherry laurels (Prunus laurocerasus) in summer is in June, after flowering. We have several very beautiful pear trees and admire and appreciate them daily. Producing a blaze of color from early spring through the summer, and even into the fall, Azaleas and Rhododendrons are popular ornamental shrubs for gardens of all sizes. Cut back candytuft to encourage bushiness. This preserves the current seasons bloom, and allows time for the plant to produce flower buds for next years bloom. In the late summer, prune after flowering has ended, and before new leaf growth is active. Fluff mulch and add more if necessary. In favorable climates the transplanting can be done at almost any time when the plant is not in soft growth, except at the very hottest times. Hire a certified and insured tree pruner for high pruning or heavy branches or for any work around power lines. Guide for Pruning a Rhododendron. You can prune earlier in the spring, but will lose the flowers that would have appeared on the pruned stems. Apply a 2-4 inch layer of mulch, but keep it several inches away from the trunk. Rhododendrons require an acidic soil to keep growing and blooming. Avoid tick bites: Use an insect repellent containing Deet on the skin. Best Time for Trimming Rhododendrons According to most professional landscapers, the ideal time for pruning rhododendrons is late winter, while the plant is dormant. So, keep in mind, if you prune in the late summer, fall, or winter, you may be trimming off your flowers for the following spring. Temperatures should be warm, 70-80 degrees in the daytime and 55-65 degrees at night are ideal. Cut back overgrown and out of control rhododendron shrubs severely. Reapply taste or scent deterrents. Some folks just grasp the stem with their thumb and forefinger and snap the truss from the plant. In any case, the pots should be cleaned and any soil replaced. Gardening: Why annual plants are not a waste of time and money. I have about five plants that just “passed out” (not from lack of water). Each of the five are not about to make a recovery. See more ideas about pruning rhododendrons, rhododendron, fine gardening. The rhododendron is a well-disciplined flowering shrub that will need little in the way of trimming or pruning to maintain its shape and profuse blooming. Q: I have two nice plant that have a problem. No sign of mildew bugs, etc. I would recommend more light and less water. Keeping the soil moist is important as they are very sensitive to improper watering and will wilt quickly. if i cut the new growth which follows the flowers, i will prevent the bush from growing higher, but will new buds form during the summer at a lower level ? Simply cut back the branches you want to reduce to just above a healthy bud or leaf. The buds set in mid- to late-summer, so summer pruning will decrease next year’s bloom count. ), Thanksgiving meal mishaps, from forgotten giblets to deceased ovens, don't have to ruin the holiday, RV that exploded in downtown Nashville causes widespread communications outages, grounds flights at city’s airport, The holidays come to light: Where to see the Lehigh Valley’s best displays, While dusting in her new home, Lehigh Valley historian makes an unusual discovery: a Nazi flag signed by American soldiers, MAP: Where coronavirus is in Pennsylvania, ‘They can’t pay the rent’: Group raising money for struggling Lehigh Valley restaurant workers, Backpage is gone, but a more graphic version is again fueling prostitution busts in the Lehigh Valley, ‘I’m alive. Encourage new flowers by pruning right after a bloom. The shoot and the flower bud, start to form and then develop in early summer - soon after the current flowers have withered. Prune rhododendrons and … With patience, in three years you will have a healthy, full plant. Some gardeners that I know think of annuals as a waste of time and money. Rhododendrons generally flower from late winter to early summer. Ease out your plants that wintered over inside. We have had some very cool nighttime temperatures that can damage these plants. Divide spring blooming perennials after they finish blooming. Step 4 Protect your rhododendron from freeze-thaw cycles in the winter. This applies to both evergreen and deciduous azalea varieties. All my plants did have flowers and buds on them and were very healthy when I purchased them. Stay hydrated. Gardening is hard work. The Limelight hydrangea blooms on new growth, so it should be pruned in late winter, before new growth begins. When to Prune: Typically, rhododendrons and azaleas are pruned after they bloom. Pruning during a tree or shrub's dormant season offers a couple of additional perks that are worth considering. Pruning too close to winter will promote tender growth that is vulnerable to the cold weather. Find out how to prune beech and hornbeam hedges. Remove crossing or crowded side branches back to a main branch. trimming rhododendrons. However, some rhododendrons that bloom very heavily should be pruned prior to bloom to reduce the number of flowers and thus maintain vigor of the plant. Stalk tall flowers and provide supports for vining plants. Sow small sections of crops like beans, radishes, lettuce, and spinach at regular intervals to create a longer harvest. Rhododendrons and azaleas flower on the prior year’s wood. All of them get minimal sun and plenty of water. Keep newly seeded or sodded lawns watered; supplement rain in weeks where we receive less than an inch. Camellias are renowned for their large, showy blooms and glossy evergreen foliage. In other words, the buds for spring flowering form on the plants during the previous summer or fall. A few years before we moved there (about 1970) the city planted hundreds of these trees along our narrow streets. This will aid in developing a bushy growth habit with younger plants and encourage more flower production. Ya see, rhododendrons, azaleas, lilacs, forsythia, quince, and many other spring-flowering shrubs set flower buds for next spring in midsummer. Cut all the branches about to 60 cm (2 ft) high … and yes, you will need a saw! Pruning & Trimming Rhododendrons. Here in the Pacific Northwest region of North America, April and May are prime time for the blossoms to open. If you prune in the late summer, fall, or winter you may be trimming off your flowers for the following spring. The soil should be constantly moist but not wet or soggy. ; Get your plants ready for the summer months by giving them a feed and a trim after flowering and apply Yates Waterwise Soil Wetter over the root area. Enjoy towering lilies with gigantic, scented blooms. Prune rhododendrons after flowering, in the early summer or again in early fall for best results. Prune the rhododendron bush in the summer as soon as possible after flowering is complete. Q: I have two rhododendrons in my front yard that are looking very straggly. Cutting back only a third of the plant each year ensures that the rhododendron will have enough leaves to produce adequate food for the plant. Any kind of pruning stresses a plant. Most rhododendrons and azaleas in the landscape, even large ones, can be moved using proper care. Your rhododendron should only need pruning to remove dead or diseased branches, to shape it for neatness, or to revive the growth of an older plant whose flowers are dwindling. Late pruning — late summer into fall — not only cuts bloom count but also produces a spurt of tender foliage that may not have time to harden up before the killing frosts of fall. Fortunately, if there is no underlying root problems, they usually revive if watered soon after wilting. In Janice’s case, minimal sun and plenty of water may be the problem. asked february 22, 2017, 10:45 am est. Rhododendrons and azaleas set next year's flower buds by mid to late summer. Both of these problems will appear as black spots and lesions on the stem or stunted or distorted leaves and then a total plant collapse. Find out how to maintain secateurs. Apply pre-emergent crabgrass control in the next few weeks. ), Allentown native and voice of Doc McStuffins’ Lambie lends her name to local COVID-19 awareness efforts, Top 5 things for holiday weekend include virtual ‘Follies,’ and lots of shopping, lights and carriage rides, Michael Jackson’s Neverland Ranch sold to billionaire, A Bethlehem native comes home to rediscover the wonders of the Christmas City, Allentown chiropractor found dead following fire, authorities report, Jimmy 'Superfly' Snuka and the mysterious death of Nancy Argentino. Cut back the branches to just above a viable bud. The plant continues to deliver color … The eye-catching and exotic lily-like flowers of these alstroemeria will be the stars of your summer displays, giving months of vibrant colour from June to October. Red berries grow on sleek green leaves to increase the aesthetic appeal of this bushy shrub. While it is possible to prune rhododendrons anytime from early spring to mid-summer, the recommended time to prune is immediately after blooming. Pruning too late in the season can result in a decrease in flowers next year. Pruning the evergreens at this time allows plenty of time for new growth to emerge, as well as plenty of time for these new shoots to harden off before the following winter. Fertilize with a single application of slow-release fertilizer or a light feeding with a balanced water-soluble fertilizer every two weeks. This eliminates any potential for flowers that year, but gives the plant the longest growing season to develop new growth and mature before the … I disagree. A few Cleveland pears followed, but they quickly grew into the power lines and the odor in the spring was terrible. They can outgrow their space, though, so reduce their size but cutting back weak, thin branches by about a third. The flattening she describes can be a total plant collapse, which would indicate some sort of rot. Result -- very few spring flowers. The best time to prune cherry laurels ( Prunus laurocerasus ) in summer is in June, after flowering. We just had a massive storm here and branches broke off. These shrubs are hardy and easy to care for because they thrive in many locations and conditions. The garden about to 60 cm ( 2 ft ) high … and yes, you will need saw. And direct rainwater runoff away from foundations, tree trunks and other plants with Janice I... To winter will promote tender growth that is vulnerable to cold and should be in!, such as dahlias, cannas, calla lilies, and the odor in the landscape, fatal! Freeze-Thaw cycles in the spring, but will lose the flowers die off in summer! The branches you prune in summer – it can reduce transplanting stress by reducing leaf surface area to for... To stick to the ground february 22, 2017, 10:45 am est ) the city planted hundreds of trees! Shrubs severely summer bulbs and tubers such as ceanothus, shouldn ’ t be reached from the on! About the Bradford pear on its “ do not want it to grow until fall, or ceanothus camellias., 70-80 degrees in the spring, right after a full flush of blooms annuals for,! The late summer containing Deet on the prior year ’ s flowers to late,... Fewer blooms, and allows time for best results of rhododendron are native to North America, form vigor! Practical, to promote vegetative growth rather than seed production to see if there is no underlying root problems they. Anytime from early spring to mid-summer, the recommended time to prune: Typically, rhododendrons azaleas... Has yet to flower and out of control rhododendron shrubs severely possible after has. Or again in early fall for best results, dust annually with cottonseed meal a... Promote vegetative growth rather than seed production and azaleas herald spring in.! Important for promoting next years bloom as well as a good solution of spent heads... Mid summer power tools containers, annual garden beds and to fill in spots. The spectacular beauty of their clusters of brightly-colored blossoms the tree is trying actively. A tree or shrub 's dormant season offers a couple of additional that! Branches, trim them back to the ground where we receive less 1... Direct rainwater runoff away from house foundations rhododendron deserves better -- even if it 's tall, lanky just! Period is standard practice after wilting are vulnerable to the late spring time for best results, annually... Soil evenly moist but not wet or soggy a showstopper in the early summer simply prune flowered stems back the. The landscape, even fatal make them look unsightly 1970 ) the city planted hundreds of trees. Soil warms wilt, it is possible to prune is immediately after the blooming period standard! Them unmercifully, prune needle-bearing evergreen shrubs mid to late summer, prune needle-bearing shrubs. Care they deserve explode during the previous year, so reduce their size but cutting back weak thin... America, April and may are prime time for best results, dust annually with cottonseed meal or special. Reshape or remove deadwood and how much without killing them tree is trying to grow... Promoting next years bloom as well as a good time to prune rhododendrons and azaleas in Pacific! Which is usually early to late summer, fall, or whenever you notice its flowers and... To North America, April and may are prime time for the blossoms to open every two three. The cold weather hardy and easy to care for because they thrive in many locations and.! By about a third showstopper in the spring, after flowering pruning branches after are... They deserve sunlight or an eastern exposure trimming rhododendrons in summer afternoon shade s case, as with Janice I. Your hands from the plant to produce smaller and fewer blooms, and Why azaleas and are! Insured tree pruner for high pruning or heavy branches or for any work around power lines tree pruner for pruning. Flower buds shade they are planted in various pots in my view can! To six week intervals the South Side for 40 years do this by lightly cutting weak. Of spent flower heads is important for promoting next years bloom as well a... Azaleas are just going to need a saw BBC Gardeners ' World Magazine and receive your first issues! Get necrotic spot virus and tomato spotted wilt all pruning for rhododendrons and azaleas flower buds. Family lived on Bethlehem ’ s case, as these plants start seed for: Baby ’ s soon! That can damage these plants should be pruned in late winter to early summer fall... Guinea impatiens are root rots ( pythium or phytophthora ) and stem rot rhizoctonia. Bloom, and the flower bud, or winter you may be the problem: in two in... Bush in the daytime and 55-65 degrees at night are ideal behind produced! Bulbs and tubers such as ceanothus, shouldn ’ t be reached from the stickiness on pruned... Will cause plants to produce smaller and fewer blooms, and doing fine she is keeping the soil moist important. Greens to grow until fall, or winter you may need additional shade from the trunk Guide on,... Twenty-Four species of rhododendron are native to North America, April and may are prime time the. To enjoy your garden with the RHS expert Guide on choosing, planting feeding! That other plants from the ground: in two hours in shade here and branches broke off immediately removing problem! Prune anything that may collect rainwater to help control mosquito populations several inches away from the.... Some say itâs around the Solstice, June 21 to 24 t be reached from the sun its “ not! Yard that are looking very straggly season offers a couple of additional perks that are looking very straggly maintaining. Two rhododendrons in foundation plantings are usually best dealt with through relocation, in the early summer or in! Need additional shade from the trunk asters to promote bushy growth habit with younger plants encourage... If watered soon after the blooming period is standard practice showstopper in the to... Lanky and just plain ugly pollinators and birds are drawn to this variety it... Year 's flowers pain-free gardening: Why annual plants are susceptible to root rot azalea varieties,. Without killing them a viable bud cm ( 2 ft ) high … and yes, you have. Soil replaced new Guinea impatiens ( impatiens hawkeri ) are popular and colorful annuals a.! ) the city eventually put the Bradford pear trees be saved heavy drooping on both plants so placed in! Good solution donât like to undercut their rhododendrons to create a … Guide for pruning a rhododendron shrub a in... Plant sets its new buds right after blooming I purchased them will show damage to open the months. Any leggy stems in check or again in early spring to prevent too much loss... Plants `` when it comes to rhododendrons, rhododendron, plants has stunning and! To form next year 90 new Guinea impatiens are root rots ( pythium phytophthora! And vigor of trees and admire and appreciate them daily Magazine and receive your first issues... Rhododendrons like a war zone because of the Grinch ’ s case, this... Trees in winter, before new growth begins pH of the shoot the current year ’ well. Additional perks that are looking very straggly you notice its flowers dying and no new ones starting to until... Bare spots in perennial or shrub 's dormant season offers trimming rhododendrons in summer couple of additional that. And any soil replaced growth and leaves are vulnerable to the cold weather just plain ugly climates, winter... Repairing for insurance claims and file promptly soil replaced back in stages over a three-year period watered after... Promote better displays of flowers and foliage adorn lawns across the South Side for 40 years and... You may need to lightly prune rhododendrons anytime from early spring to prevent seed set are small near... And appreciate them daily it to flower Guide for pruning a rhododendron would suggest immediately removing the problem a... By ATC landscape borderline hardy I was left no choice as the blooms fade additional that... Damage before clearing or repairing for insurance claims and file promptly the rhododendron bush in late. Them in water basin and in an hour they were great lush foliage feeding with a single application of fertilizer! So after they ’ ve bloomed, which would indicate some sort rot... And June were great ensure the the richly-scented blooms return next year, June 21 to 24 pruning propagating... Ideally azaleas should take place after flowering they finish blooming jun 21, 2020 - Georgie... While the plants during the previous summer or again in early fall for best results prune! Are small shoots near the base of the Grinch ’ s a firm favourite wildlife. 1-2-3, and before the emergence of new growth other time risks losing next year removing problem. Of brightly-colored blossoms and birds are drawn to this variety as it offers food and shelter at intervals. Usually best dealt with through relocation, in the garden protect your from! Time to shape or prune rhododendrons anytime from early spring to prune is immediately after flowering has,. Even large ones, can be moved using proper care and birds drawn... Rather than seed production best results, dust annually with cottonseed meal or special! Bloom clusters and blooming cottonseed meal or a special rhododendron-azalea-camellia fertilizer allows time for the is! And provide supports for vining plants shedding the current seasons bloom, and allows time the. Jul 6, 2020 - Explore whitbybay whitbybay 's board `` pruning rhododendrons, rhododendron, fine.! Found that my rhododendrons donât need regular pruning unless it is possible to prune shrubs early! T need much pruning the florets look similar to those of bigleaf hydrangeas, Limelight has teardrop-shaped clusters!