French Hydrangea: Blue or Pink Blooms? Your hydrangea is simply responding to the soil pH. Blue flowers are produced in acid soil (pH and lower), and pink flowers are produced in alkaline soil (pH 7 and higher). You can add aluminum sulfate around your
Proper hydrangea winter care will determine the success of next summer's blooms. The key to hydrangea winter protection is to protect your plant. Find what you need to do for your hydrangea in winter here.
How to Grow Hydrangeas - Everything you need to know about growing hydrangeas to make them thrive. Find out where & when to plant, likes & dislikes, watering, fertilising, maintenance and transplanting tips plus a gallery of gorgeous blooms to inspire.