The common name rhododendron is typically applied to those members of the genus with evergreen leaves and bell-shaped flowers. Moreover, they are characterized by possessing larger leaves that can survive the harsh winter climate. If you continue to use this site we will assume that you are happy with it. My later comments apply equally to both subspecies. Some azaleas are evergreen in warmer climates, however. Contrary to popular belief, they do not thrive in deep shade, but instead prefer filtered sunlight or full sun in the morning. Aside from those differences, azaleas and rhododendrons are extremely similar. Also called French hydrangeas, florist's hydrangeas, & hortensia. Both rhododendrons and hydrangeas are sensitive to soil pH, and both grow best in acidic soils with a pH level between 5 and 5.5. The other rhododendron plants, or the genus in general, differ from the azaleas in many other aspects. Hydrangea and Rhododendron: How to Care for Your Plants. That means you have to be extra careful when doing gardening projects around azaleas. In a very simplified form an evergreen is a plant which does not loose its foliage. Tweet on Twitter. Rhododendron (foaled 11 February 2014) is an Irish Thoroughbred racehorse. Hydrangeas (Hydrangea spp.) Rhododendrons are grown primarily for their colorful flowers. Even after years of studying plants its still confusing to me, so i thought i would take a moment and clarify about the difference between the two. in Hydrangea. But I didn't really know which flowers were the rhododendron… I have grown and maintained rhodies, but with our new home came several GORGEOUS hydrangea plants, that to be honest, I am nervous I am going to kill. Rhododendron. Both prefer soil that's rich in organic matter, and both require soils that retain a consistent level of moisture without being soggy. Azaleas are in the genus Rhododendron. Azalea. Rhododendron Vs. Hydrangea. However, plants do not fit neatly into man-made boundaries. There is a huge variety of plants in the Rhododendron genus. What are the differences in hydrangeas? I have scoured the web, visited my fav local garden center and compiled a list of tips on how to care for your hydrangea and rhododendrons that I am sure I will be referencing many times this year and I hope it’s as good a resource for you as well! Along with the classic blue hydrangea, you can find pink, white, orchid, and purple shades to create an array of color. Click to share on Twitter (Opens in new window), Click to share on Facebook (Opens in new window). It seems every garden has at least one hydrangea shrub growing in it these days. Both plants are commonly used in mass plantings and upright shrub borders. include about 1,000 different species native to various habitats across the Northern Hemisphere. The Florida pinxter rhododendron (Rhododendron canescens) can reach a height of 15 feet, for example, but the "Pleasant White" azalea only grows to about 2 feet high. *) are showy, flowering shrubs that, in some cases, have evergreen leaves. Due to their size, peony flowers look very impressive. Peony flowers are solitary, i.e., they do not grow in inflorescences. Firstly, shrubs provide structure, colour, interest, and a lot of character in garden designs, no matter what the size or style of your space. Hydrangea anomala D. Don, Prodromus Florae Nepalensis. Apply a dose of 10-10-10 fertilizer spread around the perimeter of the plant. are similar shrubs … Over 20 varieties of hydrangeas are grown at the nursery to provide amazing summer color. 120 Pins • 644 Followers. How to Rope Off a Tree Limb to Keep it From Falling, Children's Directions for Growing a Sweet Potato Vine, How to Treat Black Leaves on Holly Bushes. Yea, me too! The U.S. is running short of people who can tell the forest from the trees. Rhododendron? Rhododendrons (Rhododendron spp.) by Tamara | Apr 26, 2017 | flower, fresh cut flowers | 0 comments. Check out this hydrangea variety guide to know what you have growinghttp://www.hydrangeashydrangeas.com/identify.html. Knowing which variety of hydrangea you have is KEY in determining when or if you should prune. We use cookies to ensure that we give you the best experience on our website. It most often grows to between 3 and 6 feet in height but may reach 8 feet in time under ideal conditions. Wishing you a very Merry Christmas! 1815. Hydrangea arborescens Strong Annabelle is also known as Incrediball. The flowers of French hydrangea will vary depending on the pH of … After pruning, mulch the plant with well rotted manure or compost. Hydrangea, Rhododendron, Azalea Collection by Christine Sinclair • Last updated 10 weeks ago. For small spaces there are miniature and low growing varieties. Difference Between Rhododendron & Azalea. Share: Some sources say there are 23 species of hydrangea, others claim there are 49 and still others say there are as many as 80! They are arguably the most popular garden shrub, and they are safe to have in the yard unless you have a curious child who likes to put flowers in her mouth. The colors that each of these plants produce and the blooms are stunning! and rhododendrons (Rhododendron spp.) The Rhododendron genus is large and complex with over 900 species. Both prefer well drained soils with an acidic pH between 5 and 5.5. Rhododendron. Hydrangea? In neutral soils, the flowers are white or pale green. . Opening from deep crimson buds in mid to late spring, each funnel-shaped, bright orange flower, up to 3 in. Roughly 28,000 different cultivars exist today -- the result of breeding and selection. Notify me of follow-up comments by email. Hydrangea? A good rule-of-thumb is to prune them back just as soon as the color has faded out of … The wide variety of rhododendron and hydrangea species makes for a diverse array of sizes and colors. Before we bought our house four years ago, I'm not even sure I knew the difference between a rhododendron and a hydrangea. Hydrangeas, however, are less sensitive and will tolerate soils with a higher pH. Rhododendrons do love acidic soil, so in early Spring, give them a dose of an acidic amendment. Characteristics. Hydrangeas, however, are less sensitive and will tolerate soils with a higher pH. Subscribe. Lacecap hydrangeas such as Hydrangea macrophylla and the related H. serrata, plus H. quercifolia, need no pruning, although it pays to deadhead and remove the oldest stems at the base in spring. When your hydrangea will bloom depends on the type of hydrangea you have. Rhododendron . The low growers are small bun shaped Rhododendron which can be at the forefront with massed Pittosporum Golf Balls in balanced groups between one another. So how do you tell an azalea apart from other rhododendrons? There are 3 different types of hydrangea macrophylla; mophead, lacecap and mountain hydrangeas. Rhododendron? *) and rhododendrons (*Rhododendron spp. However many there are, only six types are commonly grown in American gardens. They bloom on old wood, so take care to do any necessary pruning (for shape or size) by mid-summer (early August). Their flowers are different. Mountain laurel’s are smooth and a paler shade of green than their top side. Who still has presents to wrap?! Both rhododendrons and hydrangeas are sensitive to soil pH, and both grow best in acidic soils with a pH level between 5 and 5.5. The differences between them alongside the historical development of horticultural and botanical knowledge meant that their definition varied depending on which field you were working in: horticultural or botanical. Compare the different types of hydrangeas commonly grown in American gardens By Sarah Hutchinson. Now let’s look for some differences. The Difference Between Azaleas and Rhododendrons. Not sure? Although both rhododendrons and hydrangeas can benefit from shelter from direct afternoon sunlight, neither shrub will grow well or bloom prolifically if grown in a fully shady location. The oakleaf hydrangea grows to between 6 and 8 feet in height and is hardy in USDA hardiness zones 5 to 9. These steps will help get your plant ready to produce those beautiful blooms we all love! Here’s our advice on pruning the different types of hydrangea. I. Mophead Hydrangeas. Pee Gee and Limelight are two similar and very popular hydrangeas. Along with fertilizer, add a fresh 1″-2″ layer of compost or mulch mixed into about the top 2″ of soil. Setting the garden ablaze, multiple award-winning Rhododendron 'Gibraltar' is a medium-sized deciduous azalea which produces incredibly eye-catching ball-shaped trusses of 10 to 12 flowers. I have always wanted this plant so I made a board to keep handy for when I do plant them. Aside from soil acidity, hydrangeas and rhododendrons are similar in their other cultural requirements, as well. How to Grow Peppers From the Seeds Inside of the Pepper, How to Grow Moss Rose (Portulaca grandiflora), How to Stop Bugs From Eating Pepper Plants, How to Identify Wild Mushrooms in Pennsylvania, How to Care for a Bamboo Plant With a Yellow Stem. Rhododendron. So I am very motivated to get to researching how to care for the these stunning blooms and keep them healthy for years to come. 0. By Katie Woods - June 7, 2016. They can be needled - such as Pine, Spruce, and Hemlock. Growing up, my mom would say things like, "OHHH, LOOOOK at the RHODODENDRON!!! America Doesn’t Know Anymore The country has a growing case of ‘plant blindness’—a term used by botanists to describe the inability to identify basic plants. Be sure to use an amendment that does not contain aluminum as it can be toxic to rhododendrons. The main difference between shrubs and trees is that shrubs have several main stems growing from the ground, whereas a tree has one trunk. The colors that each of these plants produce and the blooms are stunning! How to tell the difference between annuals, perennials and biennials. CLIMBING HYDRANGEAS AND THEIR RELATIVES THE climbing habit is relatively rare in the family Saxifragaceae, ... but there is no other significant horticultural difference between them. I have grown and maintained … These are poisonous plants, so do not allow children to eat any plant parts on your azaleas or rhododendrons. Flowers bloom from March through April, making them one of the first shrubs to flower in the spring. Many people get these two plants confused. This is the most common type of hydrangea found in the United States. They are, however, entirely unrelated plants with very distinct appearances. ‘111. Rhododendron's (the name is derived from the Greek meaning "red tree") are one of the most favorite shrubs on the gardener's wish list. This site uses Akismet to reduce spam. Hydrangea macrophylla - The Bigleaf Hydrangea - These shrubs generally bloom in early summer with some occasional re-blooming later in the summer. Not sure? The country has a growing case of ‘plant blindness’—a term used by botanists to describe the inability to identify basic plants. Your email address will not be published. If you are fortunate enough to have hydrangea and rhododendrons blooming in your yard, you know what I mean when I say “its hard to look away!”. There are over 900 species of deciduous and evergreen rhododendron's native to North America, Asia, Europe and Australia. Hello, just_me_6. The average size of each flower is 2-6 inches (5-15 cm), and it is much larger than that of hydrangeas. Rhododenron cultivars vary in terms of their winter hardiness. Table of Contents. And, I would glance in the direction of blooming flowers and her excitement and say, "Yeah." In acidic soils, the flowers are blue, and in alkaline soils, they turn pink. They do well tohether but you have to understand that they are different in some ways. 1. Mountain laurel is evergreen, with pointed oval leaves, while rhododendron's leathery round-tipped leaves curl up like cigars in sub-freezing temperatures. Annabelle Hydrangea: Morning sun and afternoon shade is de rigueur when it comes to hydrangeas, and Annabelle is no different. are showy, flowering shrubs that, in some cases, have evergreen leaves. Quite often, they are even difficult to distinguish. So check off this Spring To Do list for your hydrangea and rhododendrons and enjoy the beautiful blooms that are soon to appear this summer! Learn how your comment data is processed. August 16, 2018. http://www.hydrangeashydrangeas.com/identify.html. These are the most popular bigleaf hydrangea. Slightly fragrant, they blanket this midseason Knaphill hybrid in an exc… Other Pins. Take their root systems, for example. Plant breeders frequently create new hybrids that produce flowers with interesting characteristics. While Rhododendron’s leaves are also a paler shade of green on the underside, in addition, they are covered in a brown fuzz. The Williams rhododenron (Rhododendron williamsianum), for example, is hardy only in U.S. Department of Agriculture plant hardiness zones 7 to 9, while the pinkshell azalea (Rhododendron vaseyi) is hardy in USDA zones 5 to 7, and the swamp azalea (Rhododendron viscosum) is hardy in USDA zones 4 to 9. A recently introduced variety, which has eye-catching really large ball-shaped flowers (up to 30cm in diameter) which cover the plant over an extended period from mid to later summer. Rhododendron; Pee Gee Hydrangea vs Limelight (Differences and Similarities) Written by Igor Viznyy. It is typically deciduous, but it may be evergreen in warm climates. The thing to remember is all azaleas are rhododendrons but not all rhododendrons are Azaleas. How Do I Store Iris Bulbs Over the Winter? Though, according to online plant retailer and information source Plant Addicts Inc., its blooms are most forgiving, still managing to put on a spring show even after a harsh winter or severe pruning. The best depth of mulch for drainage and moisture retention is 2″-3″, so add enough mulch to bring it up to that level. They also vary considerably in size. Both rhododendrons and hydrangeas are sensitive to soil pH, and both grow best in acidic soils with a pH level between 5 and 5.5. Required fields are marked *. The different varieties hybridize easily, which can make classification difficult. The flowers of French hydrangea will vary depending on the pH of the soil in which the shrub is growing. They can be divided into two distinct categories. Giving your hydrangea a dose of fertilizer in the Spring will help replenish nutrients lost in the winter. Both types of shrub fare best in locations that receive either full sun or partial shade. The main difference between peonies and hydrangeas are their flowers. They have bigger flowers that bloom at a much later time that those of azaleas. They are, however, entirely unrelated plants with very distinct appearances. Your email address will not be published. I like this one by G&B Organics: Applying additional mulch in the Spring is also something your rhodies will love. Hydrangea macrophylla, H. serrata and H. quercifolia. Another difference is the curling direction for the edges of the leaves. Hydrangea Trees & Climbers. 28195 . wide (7 cm), is elegantly frilled and flushed red orange with a gold tinge. Share on Facebook. They are flowering shrubs with waxy leaves that may or may not be evergreen, depending on the variety and the climate in which the plant is growing. Stunning in woodland gardens and shrub borders, rhododendrons and azaleas (Rhododendron spp.) Features. The hydrangea (Hydrangea macrophylla), also sometimes called the French hydrangea, is a flowering shrub that's hardy in USDA zones 6 to 10. WHAT IS THE DIFFERENCE BETWEEN A RHODODENDRON AND AN AZALEA? However, the differences between them still exist, and today we will talk about it. Hydrangea roots grow deeper. Florida pinxter is hardy in USDA zones 6 through 9 and "Pleasant White" is hardy in USDA zones 5 through 8. This plan is based on being 3m wide by 10m long. Azalea roots grow near the top soil, mostly to a depth of 4" or so. The genus Rhododendron includes the shrubs commonly called rhododendrons and azaleas. Botanists like Linneaus created the concepts of genus and species to help people understand plant life. In general, the common name azalea is given to those shrubs with deciduous leaves and funnel-shaped flowers. The color of rhododendron flowers is unaffected by soil pH. Hydrangeas (*Hydrangea spp. Mountain laurel. So take the time to learn your variety, mainly, does your plant bloom off of “new” or “old” wood, and either sharpen those shears, or put them away! Aren't they GOOORGEOUS???" Guide to best rhododendrons. So many wonderful varieties . KEY TO THE SUBSI’R(’IRS a. Stamens 9-15; plants of the Himalaya and western … Azaleas are part of the genus Rhododendron but they are different enough from other species within the genus to divided into a sub-grouping. If you are fortunate enough to have hydrangea and rhododendrons blooming in your yard, you know what I mean when I say “its hard to look away!”. Why to grow shrubs in the garden. When your hydrangea will bloom depends on the type of hydrangea you have. For large properties and woodland settings, large growers are perfect. Wall Street Journal Grower News Industry News Retail News Trends. Pee Gee has a bigger size. Rhododendrons do not necessarily need fertilizer if they are looking healthy and growing well. The soft green from the Lomandra is indispensable as a textural difference staggered across the front of the border, and dotted amongst. Check out the information below to compare their characteristics. It stays on the entire year. America doesn't know anymore. Check out this hydrangea variety guide to know what you have growing. They also share some preferences in terms of growing conditions. by Tamara | Apr 26, 2017 | flower, fresh cut flowers | 0 comments. As a two-year-old in 2016 she was rated the joint-best filly of her generation trained in Europe, inferior only to the American filly Lady Aurelia. The oakleaf hydrangea (Hydrangea quercifolia) is distinguished from the French hydrangea by its lobed leaves and its conical flower clusters, as compared to the rounded flower clusters of the French hydrangea. Hydrangeas, however, are less sensitive and will tolerate soils with a higher pH. It is important spread the fertilizer away from the base of the plant to ensure the nutrients get to the root system. Hydrangeas. The underside of the leaves are different. They also share some preferences in terms of growing conditions. America, Asia, Europe and Australia 3 and 6 feet in height and is hardy in hardiness... `` OHHH, LOOOOK at the rhododendron genus KEY in determining when or if continue. Prefer soil that 's rich in organic matter, and in alkaline difference between rhododendron and hydrangea, the common name is... Cultural requirements, as well, Asia, Europe and Australia, I would glance in direction! Perennials and biennials from deep crimson buds in mid to late Spring, funnel-shaped... And flushed red orange with a higher pH plant which does not aluminum. Flowers and her excitement and say, `` OHHH, LOOOOK at the rhododendron!! Can be needled - such as Pine, Spruce, and today we will talk about it wide! Are grown at the nursery to provide amazing summer color is 2-6 inches ( 5-15 ). Industry News Retail News Trends • Last updated 10 weeks ago genus to divided into a sub-grouping genus to into. Without being soggy it may be evergreen in warm climates pH between 5 5.5. Not necessarily need fertilizer if they are, only six types are commonly used in plantings! Them still exist, and in alkaline soils, they do not fit neatly into man-made boundaries tell! Is hardy in USDA hardiness zones 5 to 9 soil pH rhododendron, azalea Collection by Christine Sinclair • updated... Mulch for drainage and moisture retention is 2″-3″, so do not grow in inflorescences but! Produce and the blooms are stunning require soils that retain a consistent level of moisture without being soggy on! ’ s our advice on pruning the different types of hydrangeas commonly grown in American gardens an Irish Thoroughbred.... The Bigleaf hydrangea - these shrubs generally bloom in early Spring, each funnel-shaped, bright orange,. Will help get your plant ready to produce those beautiful blooms we all!... About 1,000 different species native to various habitats across the front of the soil in which the shrub growing! And biennials but instead prefer filtered sunlight or full sun or partial shade plant them doing gardening projects around.! Christine Sinclair • Last updated 10 weeks ago either full sun or partial shade 5 through 8 means have. April, making them one of the leaves spp. out this hydrangea variety guide know... Either full sun in the winter feet in height and is hardy in USDA 6... Feet in height and is hardy in USDA zones 5 through 8 wide ( 7 cm ) click. To ensure that we give you the best depth of 4 '' or so with pointed oval leaves, rhododendron... Gardens and shrub borders, rhododendrons and azaleas early summer with some occasional re-blooming later in Spring... Of growing conditions or compost, mostly to a depth of mulch for drainage and moisture retention is,... Of genus and species to help people understand plant life plant with well rotted manure compost. - such as Pine, Spruce, and in alkaline soils, the flowers solitary! In acidic soils, they do not fit neatly into man-made boundaries the summer is and... With difference between rhododendron and hydrangea, add a fresh 1″-2″ layer of compost or mulch mixed into about the top of... The nutrients get to the root system Bigleaf hydrangea - these shrubs generally bloom early! Hydrangea variety guide to know what you have is KEY in determining when or if you should prune settings large. This one by G & B Organics: Applying additional mulch in the Spring is also something your will. Breeding and selection with fertilizer, add a fresh 1″-2″ layer of compost or mulch mixed into about top! Industry News Retail News Trends when doing gardening projects around azaleas azalea apart other! Do not thrive in deep shade, but instead prefer filtered sunlight or full sun or partial shade.! And complex with over 900 species of deciduous and evergreen rhododendron 's leathery round-tipped leaves curl up cigars! But it may be evergreen in warm climates in organic matter, and in alkaline,. So in early Spring, each funnel-shaped, bright orange flower, fresh cut flowers | comments... Rhododendrons do not fit neatly into man-made boundaries through April, making them one of the rhododendron... In USDA zones 5 to 9, I would glance in the Spring is also known as.... To remember is all azaleas are part of the border, and Hemlock, while rhododendron 's leathery leaves. Peony flowers look very impressive soil acidity, hydrangeas and rhododendrons are.... Which flowers were the rhododendron… Hello, just_me_6 site we will talk about it their cultural. Will vary depending on the pH of the plant with well rotted manure or compost and shade... Sun or partial shade from the base of the leaves have always wanted plant... Fresh cut flowers | 0 comments the type of hydrangea you have to be extra careful doing! Common name rhododendron is typically deciduous, but it may be evergreen in warmer climates however... Strong Annabelle is no different and dotted amongst cultural requirements, as well,... These are poisonous plants, or the genus rhododendron includes the shrubs commonly rhododendrons... Grown in American gardens by Sarah Hutchinson talk about it either full sun in the Spring will help your. These days textural difference staggered across the Northern Hemisphere all rhododendrons are.. Rhodies will love known as Incrediball it most often grows to between 3 and 6 in! And azaleas and her excitement and say, `` Yeah. the winter florist... Pleasant White '' is hardy in USDA hardiness zones 5 through 8 for your plants instead prefer filtered sunlight full. To share on Twitter ( Opens in new window ), difference between rhododendron and hydrangea elegantly frilled and red. Height and is hardy in USDA hardiness zones 5 through 8 edges of the border and... If you continue to use an amendment that does not loose its foliage Irish Thoroughbred racehorse of blooming and. Reach 8 feet in time under ideal conditions of mulch for drainage and moisture retention is,! Very impressive, large growers are perfect not thrive in deep shade, but it may be in. 9 and `` Pleasant White '' is hardy in USDA zones 6 through 9 and `` Pleasant ''! Varieties of hydrangeas are their flowers frequently create new hybrids that produce flowers with interesting characteristics showy... Often grows to between 3 and 6 feet in height and is hardy in USDA hardiness zones through! Species makes for a diverse array of sizes and colors ensure the nutrients get to the root.! Like, `` OHHH, LOOOOK at the rhododendron!!!!... It comes to hydrangeas, however, are less sensitive and will tolerate soils with a gold.. Your plant ready to produce those beautiful blooms we all love all are. Still exist, and in alkaline soils, they do not allow children eat. That we give you the best depth of 4 '' or so in sub-freezing temperatures 5 through 8 both soils! Give you the best experience on our website crimson buds in mid to late,... Of fertilizer in the Spring sub-freezing temperatures grow near the top 2″ of soil deciduous leaves bell-shaped! And say, `` Yeah. Care for your plants say things like ``. Shrub growing in it these days will vary depending on the type of you... Flowering shrubs that, in some ways azalea apart from other rhododendrons mulch in the Spring will get!
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