How To Change Hydrangea Colors вђ Artofit Apply the powder form of lime to the plant’s base in april, and again in october. the ph of the soil will be raised by garden lime. this prevents your hydrangea from utilizing the aluminum, which enhances both the reds and the pink blooms. you can opt to add dolomitic lime to the base of the plant and water it in. From blue to pink. if you have acidic soil—meaning your soil's ph is under 6.0—and you would like to change your hydrangeas from blue to pink, add garden lime, which is found at most local nurseries, or wood ashes to your soil, mcenaney says. this will make your soil more alkaline.
How To Change Hydrangea Colors вђ Artofit So, don your gardening hat and let’s deep dive into the magical world of hydrangea colors. 1. soil ph is your paintbrush: the soil’s ph is the magic wand in our color changing tale. essentially, it’s a measure of how acidic or alkaline your soil is. think of soil ph as a scale, with 7 being neutral. Condon explains that to achieve blue blooms, you must have soil that is decidedly more acidic with a ph lower than 5.5. alkaline soil with a ph of 7.0 or above generates pink and red blooms. 3. reapply the lime every 3 4 weeks during the growing season. continue conditioning your hydrangeas throughout the spring and summer months while they’re still actively growing. you should begin to witness a gradual change in color after several weeks or months. when you do, the effects will be quite stunning. Here’s how you can adjust your soil to affect the bloom color: soil ph 5.0 to 5.5 = blue. soil ph 6.0 to 6.5 = pink purple. soil ph 5.5 to 6.5 = purple, or both blue & pink. to make sepals bluer, add aluminum sulfate to soil and maintain low levels of phosphorous, moderate levels of nitrogen, and high levels of potassium. to make sepals.
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