Incidentally white hydrangeas do not change colour according to soil type, but they may blush pink in the sun. Hydrangeas hate dry conditions, so regular watering is essential in pots and containers, and in dry spells in the open ground.
Add plenty of garden compost or farmyard manure when you plant your hydrangea in a bed or border and make sure you water thoroughly before and after planting. Although they are not particularly demanding, hydrangeas need a supply of food in the soil to promote growth and flower production. An annual application of Vitax Conifer and Shrub Fertiliser is ideal in the open ground and in pots and containers. This is perfect for acid-loving plants so will not influence the colour of your hydrangea.
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Please contact your sites administrator if you believe this other user or machine has unauthorised access. This Website uses cookies to provide best user experience. Cookie Policy - Privacy Policy. Save Pin FB More. Credit: Kritsada Panichgul. Deadhead Endless Summer hydrangeas when the flowers start to wilt; as long as you do, the plant will keep blooming all season.
Pink Hydrangea. When soil pH gets closer to neutral, bigleaf hydrangea flowers will look purplish. Credit: Alise O'Brien Photography. Comments 2 Add Comment. View Comments. April 1, Great article. I've always heard you can add coffee grounds to the soil to get blue flowers. Has anyone ever tried this with any success?
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Work the mixture into the soil around the base of your hydrangea plant, and then water it in. How often should you do this? Save your peels and your grounds in a little bowl on the countertop and whenever the bowl is full, take it outdoors to feed the hydrangeas. The acidity of the of the soil will slowly increase; by next year, your hydrangeas should look a lot more blue. Crushed egg shells will also increase the acidity of the soil.
Work them into the ground along with citrus peel and coffee grounds. As they decompose, the organic materials will add aluminum to the soil making it more acidic. Can hydrangeas turn too blue? If so, you can make your soil more alkaline by adding Garden Lime ; a 6. Search for:. What is used to test soil pH? How do you change soil pH for hydrangeas? Join the conversation.
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