How to turn hydrangeas pink. And before you get too excited, you cannot change the intensity of the color; that is more dependent on the environment or weather. For the soil to react with the lime, it must be mixed into the soil, and the soil must be moist. To keep the hydrangea pink requires a bit of chemistry. Conversely alkaline soil with high pH will limit the amount of available aluminum so the colors you get will lean toward pink. Hydrangeas are often chosen by their flowers, like many other flowering plants. Her articles have appeared at Trulia.com, SFGate.com, GardenGuides.com, RE/MAX.com, MarketLeader.com, RealEstate.com, USAToday.com and in "Chicago Agent" magazine, to name a few. Hydrangeas can be hardy in zones 3 to 7, which makes them excellent perennials and staples within any garden. … For information on how to collect rainwater, see this article. Fertilise the pink hydrangea in early spring with a 25-10-10 formula. There is a fertilizer specially formulated to keep your hydrangea pink. Replace the vase water every day. All Rights Reserved. Learn how your comment data is processed. Sprinkle dolomitic lime on the soil around the hydrangea two to three times a year, with the first application in the fall. And they are also highly versatile, growing either in full shade or full sun. To make pink hydrangeas turn blue (or to keep your blue ones from turning pink), increase the acidity of soil. Can you turn white hydrangeas blue? Your email address will not be published. Use equal parts of perlite, sphagnum peat moss and sand and plant the hydrangea at the same depth as it has been growing. Watering in the morning will help prevent hydrangeas from wilting during hot days. Hydrangea flowers will naturally fade and dry in the fall, often to a combination of pink and green or tan. The only way to do this is to add garden lime to soil to help raise the pH. here is a quick and simple way to figure out your soil’s pH with ingredients from the kitchen. Garden Therapy is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites. Again, you will have to add the lime every 3 to 4 weeks throughout the growing season to keep the blooms pink. It states how much on the package directions. Grow the pink hydrangea in a pot if all else fails. No matter what plant you’re growing, you should make sure you know how frequently you should be watering them. Hard water (water with a high mineral content) can also affect the flower color, turning blue flowers more pinkish, so use rainwater to water your hydrangeas, when possible. Endless Summer Color Me Pink and Color Me Blue products (available at garden centers and from naturehills.com) supply pelletized lime and sulfur respectively. One of the first hydrangeas to bloom, the flowers emerge pure white and then change to bright pink from the bottom up as they age. Change Hydrangea Color to Pink. Many hydrangeas will go through a slight color change when transplanted due to adjusting to their new soil when you first bring them home. Adding dolomitic lime or agricultural lime increases the soil's alkalinity. This will give you a baseline. But if you really want to shake things up, this simple little soil hack will make your hydrangea change color! Plants can be made (or kept) blue by applying aluminum sulfate to the soil; plants can be kept pink by liming the soil or applying superphosphate. There are some hydrangeas that stay pink no matter what the soil pH. The first thing you need to do is test the pH of your soil. What changes hydrangeas’ color? Fertilise the pink hydrangea in early spring with a 25-10-10 formula. Regardless of what colour they are supposed to be -- pink or blue -- according to the nursery tag, these plants flower in whatever colour the soil's chemistry dictates. Water your hydrangeas with rainwater. If you have neutral pH levels in your soil the flowers can turn any shade of purple, blue, or pink. Learn More. The color of the flowers that bloom on these bushy plants can take on many shades of red, blue, pink, purple, white, and more. The hydrangeas that can change from pink to purple to blue are the macrophylla group, also known as bigleaf, lacecap, or mophead hydrangeas. They produce beautiful, big clusters of pink, white, or blue flowers. Garden World | How to Keep a Blue Hydrangea Blue. (Lacecaps have flat … Choose a good fertilizer such as 10-10-10 from the store. Get seasonal garden & craft ideas sent to you weekly. For blue hydrangeas, the soil should be acidic and have a pH level between 4.5 and 5.5. To keep it blue you would use aluminum sulfate. And preserve the color once you have it with How to Dry Hydrangeas and Retain Color! To confirm your soil’s pH level, let’s test a sample: Conduct a soil analysis. Do a soil test and add lime if necessary to sweeten the soil. Scatter the fertiliser on the soil, six inches away from the base of the hydrangea, and spread it out to the dripline. They’re unaffected by soil pH. From there you can test the soil annually to make sure that you are maintaining the pH level that you want. Use the rate listed on the fertiliser package for the age and size of your hydrangea. Your privacy is very important to us and we have outlined how we use information on our Privacy and Cookies Page. If your hydrangeas are pink (because your soil is alkaline) and you want them to be blue, you need to make the soil acidic by increasing the presence of aluminum. Aim for a pH of between 6.0 and 6.2. You can achieve this by adding amendments to you your soil like pine needles, compost, coffee grounds, and aluminum sulfate that help make the soil acidic over time. Sprinkle 1/2 cup of garden lime per 10 square feet. To make soil more acid, sprinkle ½ cup garden sulfur over the soil beneath the hydrangea, and water it in. So, at this point you don’t need to do anything. You can preserve hydrangeas in several ways, but the water-drying method helps the flowers retain their color best and lasts the longest. Hi Sam, those were the package recommendations on a garden lime amendment, which could have had other ingredients in it, but also for a larger area. While some experts claim that the soil pH for pink hydrangeas should be between 7.0 and 7.5, others say that a pH above 6.4 makes the shrub chlorotic due to a lack of iron. You apply once a year in the spring and it will keep the plant healthy and in color. To keep a hydrangea pink you would amend the soil with lime. Add mulch underneath your hydrangeas to help keep the soil moist and cool. Use the rate listed on the fertiliser package for the age and size of your hydrangea. She holds a Bachelor of Arts in English with a concentration in creative writing. Water the soil slowly and deeply, to a depth of 10 inches, after applying. Use a rake or hand cultivator to scratch the lime into the top 2 inches of soil. Your email address will not be published. Growing bigleafs in soil with a pH of 5.5 to 6.5 may produce purple flowers, or it may result in flowers with both pink and blue blossoms. Learn about how our products can help you. These shrubs can get as tall as the gardener planting them, and spread to 4 feet wide. If you need to nudge your soil farther along the line toward alkaline to get your hydrangeas as red as possible, add lime. This site uses cookies to deliver its services, to personalize ads and to analyze traffic. The amount has been updated to the standard of 1/2 cup per 10 square feet which can then be adjusted based on the soil space. Since this pink hydrangea’s 2010 debut, it has raised funds to support 14,600 hours of research. Based in the American Southwest, Bridget Kelly has been writing about gardening and real estate since 2005. Sprinkle 1/2 cup of garden lime per 10 square feet. Your Forever Pink hydrangea may turn blue if there is too much aluminium in the soil. Watch Queue Queue. Sprinkle 1 cup of lime around the dripline of each shrub. Again, you will have to add the lime every 3 to 4 weeks throughout the growing season to keep the blooms pink. This would be done in late winter or early spring. However, for varieties of hydrangeas like the varieties in Endless Summer that turn blue in acidic soil and pink in alkaline soil, use Color Me Pink. We won't send you either. To increase the acidity of the soil, add iron sulfate or a soil acidifier near the base of the plant. How to Grow Herbs Indoors (Successfully) ». As a rule of thumb, start with 0.227kg. Hi Michelle – To change the color of your hydrangeas to pink or blue you sprinkle the product in the soil around the plants. While some experts claim that the soil pH for pink hydrangeas should be between 7.0 and 7.5, others say that a pH above 6.4 makes the shrub chlorotic due to a lack of iron. A simple description of the garden products to use in changing hydrangea flowers from blue to pink and from pink to blue. Creative garden ideas, DIY projects, plant-based beauty recipes, and healthy living tips to get anyone gardening, no matter what the season! Purple blooms are usually the result of a more neutral soil pH. It adds natural minerals to help lower the pH. What soil do you need to turn hydrangeas pink In order to change the soil PH, you want to test the area where you intend to plant your hydrangea first. That seems awfully excessive. 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