Hydrangea macrophylla (Bigleaf Hydrangea): This variety is most commonly affected by soil pH. It includes both Mophead and Lacecap types. The color change is most dramatic in these hydrangeas.
Growing hydrangeas, Hydrangea macrophylla, in New Hampshire can be a challenge, but it can also be rewarding, provided you have the right expectations and you're choosing the right species to grow.
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