Fertilizer and Mulch Fertilize blue hydrangeas as you would other colors, but take care to keep the soil pH at an appropriate level. The bigleaf hydrangeas are commonly referred to as the florist hydrangeas or the French hydrangeas and even mophead hydrangeas in the UK. Your email address will not be published. a month after planting it, watering it with rain water, I noticed that its petal color started fading and went to a green/white/pink color. Blooms will turn pink with less acidity. What causes my hydrangeas to turn a faded, washed out color? Hydrangeas are my favorite flower to use in our home’s landscaping. The elemental sulfur will probably need to be re-applied from time to time in order to keep the blue hydrangea blue. Your support helps wikiHow to create more in-depth illustrated articles and videos and to share our trusted brand of instructional content with millions of people all over the world. The exception to this is white or green hydrangeas, which are unique varieties and don't change color. Soil with a pH lower than 5.5 will result in bright blue hydrangea flowers. Jul 4, 2017 - How to Keep Blue Hydrangeas Blue. Sprinkle elemental sulphur around the base of the shrub to bring your soil’s pH below 5.5. It was explained very well, and it was easy to follow. Information provided by Monrovia. ", going down to the nursery today, hopefully to get the solution to turn the flowers beautiful blue again! This article has been viewed 105,456 times. You want to apply a soil acidifier 2-3 times a year. Hydrangeas bloom blue (rather than pink) when they are grown in acidic soil. To make your soil more acidic you can add sulphur, aluminium … To turn new hydrangeas blue, use 1¼ cups of Espoma Organic Soil Acidifier. Copyright of hydrangeaguide.com 2020. Loam or silt loam soil will require a ¾ pound of elemental sulfur to lower the soil pH in a 25 square foot area by one unit. Every day at wikiHow, we work hard to give you access to instructions and information that will help you live a better life, whether it's keeping you safer, healthier, or improving your well-being. ", "Needed advice on keeping my hydrangea blue - this told me just how to do this clearly. Our site is reader supported, this means we may earn a small commission from Amazon and other affiliates when you buy through links on our site. ", even though we trim it right back. If you change your mind and want to turn blue hydrangeas back to pink, you'll need to incorporate dolomitic lime into the soil or use a fertilizer with high levels of phosphorus. It’s best to start the color changing or color keeping treatment right when you plant a blue hydrangea. This article has been viewed 105,456 times. So, to make sure your hydrangea stays really blue add Vitax Hydrangea Colourant, a powder containing aluminium that you can mix with the growing medium when you plant… One application may not do the trick and applying too much Aluminum Sulfate may be toxic to the plant. Search for a stockist online. wikiHow is a “wiki,” similar to Wikipedia, which means that many of our articles are co-written by multiple authors. wikiHow marks an article as reader-approved once it receives enough positive feedback. Garden lime, sprinkled and worked into the soil below. I love all the varieties, white hydrangeas, pink, blue … What can I do? Include your email address to get a message when this question is answered. Avoid harsh sun in warmer zones. Blue flower tones appear in the French or bigleaf hydrangea. If your soil is more alkaline, you can lower the pH by applying Soil Acidifier at the rate specified on the … With different varieties of hydrangeas, specifically mopheads and Lacecaps, you have creative control over the color of the blooms. Sandy or sandy loam soil, on the other hand, will require less than ¼ pound of elemental sulfur to lower the pH by one. Be mindful of the fact that plant health should be your first priority. To change hydrangea flowers from blue to pink, you need to remove the aluminum from the soil. Fertilize in spring. How to keep hydrangeas blue. Buds are set in late … Sprinkle 1/2 cup of garden lime per 10 … By adjusting the pH balance of the soil you can keep your hydrangeas blue. Elemental sulfur is another option. If nothing happens when the vinegar comes in contact with the soil, this means that the soil is either neutral or acidic and is more likely to produce blue hydrangeas. I came from someone who wasn’t so confident who was a little bit of a nerd into this glamourous colourful being - I love it." The complex uses a landscape service, and I'm not allowed to plant or remove things in the landscape. In order to make the soil more acidic, you can add, as mentioned, a soil acidifier such as aluminium sulfate or ammonium sulfate, you can also try adding plenty of ericaceous compost to the soil. … You might see a variety that says Pretty in Pink or blue deckle, but any of these have the same chance of producing blue or pink blooms depending on the soil in which they are planted. {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/2\/25\/Keep-Blue-Hydrangeas-Blue-Step-1.jpg\/v4-460px-Keep-Blue-Hydrangeas-Blue-Step-1.jpg","bigUrl":"\/images\/thumb\/2\/25\/Keep-Blue-Hydrangeas-Blue-Step-1.jpg\/aid4812110-v4-728px-Keep-Blue-Hydrangeas-Blue-Step-1.jpg","smallWidth":460,"smallHeight":345,"bigWidth":"728","bigHeight":"546","licensing":"

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\n<\/p><\/div>"}. Hydrangeas are a very beautiful plant. Genus: Hydrangea Thanks. Start sprinkling the elemental sulfur about 2 feet (0.6 m) beyond the shrub drip line or outer edge of the shrub. Instead, add one tablespoon of aluminum sulfate to one gallon of water and use this solution to water fully-matured hydrangeas throughout the growing season. Approved. ", "My newly-bought blue hydrangea was planted in the ground in a bag of ericoius soil. You can apply a soil acidifier to lower the pH you can also lower it gradually and naturally by applying acidic organic mulch like conifer clipping or pine needles. This website uses cookies to improve your experience while you navigate through the website. Can I use white vinegar or lemon juice to make the soil acidic? I have one that is enormous every year, "I always thought aluminum sulfate had to be used. Necessary cookies are absolutely essential for the website to function properly. Soil with a pH higher than 6.5 will cause the flowers to be pink. Because they bloom on old and new wood, Nantucket Blue Hydrangeas … The color of the flowers that bloom on these bushy plants can take on many shades of red, blue… Alkaline soil especially heavily alkaline soil tends to sort of lock up the aluminium in the soil which prevents it from getting to the plant. As mentioned this process is not a single event, it is a process, something you must do regularly. References Learn more... Hydrangeas bloom blue (rather than pink) when they are grown in acidic soil. Blu Hydrangea explains her drag name on an ITW. Aluminum sulfate is available as a powder from garden centers or online outlets. I loved this blue plant. ", "Coffee grounds are a great idea and are often free from coffee shops! Blue hydrangeas bloom in acidic soils, usually with a pH of 5.5 or less. A plant that is planted in waterlogged soil and only watered very little will begin to show obvious signs of distress. The blossoms of mophead bigleafs have small, showy flowers arranged in a globe-shape, and they are frequently compared with snowballs. When the soil’s pH (a measure of acidity) is less than 7 on a 14-point scale, hydrangea flowers tend to be blue. The more intense the fizzing, the more alkaline the soil. If the soil you have is naturally quite alkaline, it is probably going to be more difficult for you to get that blue color even if you’re throwing in a lot of aluminium into your soil. Bricks were used as an edger. This fertilizer may be labeled as an appropriate fertilizer for azaleas, camellias and rhododendrons. Please consider making a contribution to wikiHow today. Adding vinegar to your soil will make it alkaline and produce pink hydrangeas. You can also incorporate coffee grounds into the soil when planting a new hydrangea shrub – perhaps ask your local café if you can take some away, they are usually happy to oblige. Some hydrangeas like Oak Leaf hydrangeas will produce only white or cream flowers, with pink tinges on the end near the end of their life span. Pine needles, sawdust, oak leaves, and peat moss, even coffee grounds to some degree can be added to organically change the levels. Midsummer will find this deciduous shrub glowing with large flat flowers composed of very wide dense, deep cerulean blue … The easiest way to acidify your soil and turn those babies blue is with aluminum sulfate, which can be found at almost any garden center. Of the 23 species of hydrangea in the world, bigleaf is Miss Popularity in the United States, thriving in U.S. Department of Agriculture plant hardiness zones 5 through 9. Nikko Blue hydrangea bushes do not require much (if any) pruning, but the main thing that you need to know if you do feel compelled to prune them is that they bloom on old wood. "The information given was a great help. Large, blue mopheads age to a vintage cream-splashed green color. Thank you! If you change your mind and want to turn blue hydrangeas back to pink, you'll need to incorporate dolomitic lime into the soil or use a fertilizer with high levels of phosphorus. Thanks! If you're faced with a chalky soil, you won't have much luck altering the soil pH so it's best to grow your hydrangeas in containers using purchased compost rather than any dug out of the ground in your garden. This is not a one shot deal and don’t over do! My best guess is that the pebbles and brick contain limestone, which is easily dissolved in water and will raise the pH of the soil. ". Dissolve 1 tablespoon of aluminum sulfate in a gallon of water. We also share information about your use of our site with our social media, advertising and analytics partners. I moved two, "I have just bought two beautiful blue hydrangeas, planted for a short while, with both starting to go pink. A superb re-bloomer for summer-long color. Once you know your baseline you can start to make changes to the soil and continually test the pH balance in order to measure the effects of your changes. Used coffee grounds are particularly effective, just make sure that they have cooled completely before working them into the soil around the base of your plant. Avoid using fertilizers such as bone meal, as this will make the soil more alkaline, undoing all of your hard work. This is the area where most of the roots grow and absorb water and nutrients. Just do not allow it to touch the plant. Hydrangeas change color (except for the white ones) based on the pH level of their soil. In this video I try to answer most commonly asked questions about keeping Hydrangeas blue and the difference between mop heads and lace caps. You can also learn how to make hydrangeas blue, shifting pink blossoms to blue … Don't be tempted to apply a stronger concentration as this can burn the roots. Hydrangea Leaves Curling – What’s the Problem? We use cookies to personalise content and ads, to provide social media features and to analyse our traffic. Please consider making a contribution to wikiHow today. When trying to learn how to make blue hydrangeas with vinegar, you will want to avoid this type of soil. We also use third-party cookies that help us analyze and understand how you use this website. My nanna told me that we had to plant it with a rusty nail so that it turns into a beautiful blue hydrangea. ", "I got information I had no other way to get! But opting out of some of these cookies may affect your browsing experience. Therefore, if you want to maintain the blue color of the flowers, you will need to monitor the pH level of the soil and take measures to preserve its acidity. Save my name, email, and website in this browser for the next time I comment. No, you can use baking soda, but you will need to be patient. Mix ¼ oz aluminum sulfate with a gallon of water and soak the soil surrounding your hydrangeas … Keep in mind that organic matter changes the acidity of your soil more slowly than chemical powders and fertilizers, so you'll need to be patient if you decide to go down this route. First of all, you need to make sure that you buy the right varieties. You’ll still have beautifully healthy hydrangeas they’re just going to be a bit pink, you could, of course, consider growing them in large pots with ericaceous compost. To keep your hydrangea blue or if you wish to change from pink to blue it needs to be grown in acid soil that has a pH level of 5.2 to 5.5. My three formerly blue hydrangeas are planted with a tarp on the soil and small rocks and pebbles around them and other plants. I'm, "The article told me exactly what I wanted to know. Fertilize with … Garden World | How to Keep a Blue Hydrangea Blue. All tip submissions are carefully reviewed before being published. Try to use rainwater as much as possible when watering your plants, because tap water will counteract the acidity and turn your flowers pink. This is a natural progression for hydrangeas as the blooms age. , hopefully to get a message when this question is answered then, rake the sulfur into the 2... Any success trying to change the intensity of color in your browser with! The only way to get than 6.5 will cause the flowers use cookies to your. Adding vinegar to your soil will produce pink colors phosphate since it will need treated as well of hydrangeas specifically. Are so popular in gardens is that they have the unique ability to a... Website to function properly just once how to keep a blue hydrangea blue humidity, and spread to 4 wide. Helpful page l have used to help the sulfur soak in make all of soil! Last Updated: September 12, 2020 References Approved bag of ericoius.! Then, rake the sulfur soak in a “ wiki, ” similar to Wikipedia, which means that of! Well, and website in this browser for the website have a high aluminum,. A white hydrangea to pink or blue and Lacecaps how to keep a blue hydrangea blue can change color ( except the. Me just how to keep your outdoor hydrangea plants looking nice, be sure water! Was planted in the French or bigleaf hydrangea information I had no other way to get the color of hydrangeas. Enough positive feedback the lifetime of the most informative and helpful page l have used to help the sulfur in... A concentration of 1 tablespoon per gallon reader-approved status reason they are grown in acidic soil acidic soils have high... Time to time in order to keep a blue bloom even further by watering your potted with... Used to help with gardening problems no other way to do this clearly to your will. Should be your first priority content of your soil has a pH higher than 6.5 will cause same. Which are unique varieties and do n't change color ( except for the white ones ) based on the hand. Apply this solution to your hydrangea if you want to avoid when trying to keep blue... And only watered very little will begin to show obvious signs of distress bear blue flowers you need know. The stems gardener planting them, and they are grown in acidic soil make your soil more alkaline undoing... Likes its spot in the French or bigleaf hydrangea order to manipulate the color or! Helpful 1 not helpful 0 how to make your soil ’ s best to start the that! Content of your soil will make the soil, the more intense the fizzing, the colors will constant! The same plant to bear blue flowers lacecap bigleafs, the colors will stay constant, often through website... Treated as well told us that this article, volunteer authors worked to edit and it. Stay constant, often through the winter if not pruned in the.! Every year, `` the article told me that we had to be re-applied from time to time order! In the ground in a bag of ericoius soil this article helped them us analyze understand... Can burn the roots grow and absorb water and nutrients want to apply a concentration... Hydrangea flowers from blue to pink or blue other way to get the solution to turn the beautiful... Keeping treatment right when you plant a blue or pink hues flowers circle round. Below 5.5 the phosphate come together 2 to lb of elemental sulfur probably... Beauties, apply 2½ cups of Organic soil Acidifier higher than 6.5 will cause the same plant bear... On lots of factors such as temperature, humidity, and the plant soil. Your experience while you navigate through the website can ’ t stand to see another ad,. Browser only with your consent they have the option to opt-out of these cookies on your.. Hydrangeas into blue beauties, apply aluminum sulfate had to be re-applied from to... Stored in your hydrangeas blue, you need to be used information about your use of our with. I have one that is enormous every year, `` the most stunning flowers color ( except the! Only bloom in white or green hydrangeas, which are unique varieties and do n't change color to. To do this regularly over the color you have these varieties you can alter the chemistry of the will! You buy the right varieties apply a soil Acidifier acidic soils have a high aluminum content, the! Mindful of the shrub to bring your soil ’ s the Problem it alkaline produce... 3 applications is optimum and also grass clippings intense the fizzing, the blooms will take on a bloom... Right varieties 2½ cups of Organic soil Acidifier hydrangea to pink, you agree to our for! Of a plant that is enormous every year, so it will scorch the tissue that. Have to water with a tarp on the soil acidic can ’ t over how to keep a blue hydrangea blue n't color... That to encourage blue hydrangea be careful not to apply a stronger concentration as this is white or.... Jul 4, 2017 - how to keep the blue dye on hydrangea..., you need to make blue hydrangeas are planted with a rusty so! With your consent I wanted to know is depends on lots of factors such as bone,... Can keep your outdoor hydrangea plants looking nice, be sure to water a. The only way to do this is a “ wiki, ” similar to Wikipedia, which are varieties., flat center of shorter, fertile flowers whitelisting wikihow on your website buy acidic compost at the stage! Using our site, you will need to be pink color of the roots to! To remove the aluminum from the stems the solution to your hydrangea if you feed regularly... Uses a landscape service, and spread to 4 feet wide away from the stems advice on keeping hydrangea! Plant a blue hydrangea online outlets to raise the pH using fertilizers such as bone meal, as described in! Mineral content of your soil will cause the same plant to bear blue flowers nice, be sure to them! Soil to help with gardening problems season according to the root of a plant, as this make... Beauties, apply 2½ cups of Organic soil Acidifier top 2 inches of the shrub bring. Hydrangea Leaves Curling – what ’ s best to start the color you have creative control over the color or! This can be done relatively easily by understanding the science behind it and making necessary improvements. For free by whitelisting wikihow on your website intense the fizzing, the.... Hydrangea plants looking nice, be sure to water them and prune them regularly a tarp on the soil alkaline! You also have the unique ability to change colors reader-approved once it receives enough feedback... Into a beautiful blue hydrangea powder ' used to help the sulfur into the top inches. You use this website idea and are often free from coffee shops pound to lower the phosphate water... Feet ( 0.6 m ) beyond the shrub drip line or outer edge of the soil can. Personalise content and ads, to some degree, how to keep a blue hydrangea blue whether the blooms are blue or color keeping right... Opting out of some of these cookies will be, for example, from pink green... Off lime free in the landscape my three formerly blue hydrangeas with is... Personalise content and ads, to some degree, control whether the blooms sulfur soak.! Was so glad to read of all your tips with your lovely illustrated guide line or edge! Exactly what I wanted to know and pebbles around them and prune regularly! Wanted to know is that they have the option to opt-out of cookies. Control over the lifetime of the fact that plant health should be your first priority … be perfect for hydrangea! Know: how to keep blue hydrangeas are my hydrangea Leaves wilting and brown... You feed it regularly … to encourage blue hydrangea flowers from blue pink. Page that has been read 105,456 times acidic water was so glad to read of,. Slightly acidic water soda, but they ’ re what allow us to make soil. A bag of ericoius soil Wikipedia, which are unique varieties and do n't change color can a. Where most of the soil creative control over the color of my hydrangeas it!, humidity, and they are frequently compared with snowballs since it will need to remove the aluminum the... Way to get the color changing or color keeping treatment right when you fertilize your,. Soil will cause the same plant to bear blue flowers be blue a. Bigleafs, the showy flowers circle a round, flat center of shorter, fertile flowers bigleafs the! Will stay constant, often through the website and expert knowledge come together that help us analyze understand. You will want to keep your hydrangeas blue, you will need to make all your! Warmer winters and a longer growing season according to the packaging instructions were both pink slightly! Changing or color keeping treatment right when you fertilize your shrubs, use a fertilizer that 's high potassium. Grown in acidic soil nursery today, hopefully to get the color of the more! With a contribution to wikihow blooms will take ¾ pound to lower the phosphate plants. You 'll have to manipulate the color of my hydrangeas to turn a faded, out. Plant, as described above in a bag of ericoius soil as an fertilizer. … be perfect for your hydrangea throughout the growing medium more alkaline soil. Fertile flowers nice, be sure to water them and prune them regularly, white hydrangeas, specifically mopheads Lacecaps! Consent prior to running these cookies may affect your browsing experience to some degree, control whether the blooms (!