A staple in Southern gardens, the hydrangea typically blooms in pink, white or blue. But there’s a new type of hydrangea on the scene. The “pistachio” hydrangea (Hydrangea macrophylla ‘Horwack’) is definitely an eye-catcher, and its pink-and-green blooms are a firm favorite on social media.
The pictures shared by keen horticulturists show just how much variation is possible. Garden designer Hulya Demir’s Instagram post shows just how vivid the pink part of the flower can be.
On the other hand, the Hardy Plant Society of Oregon’s pistachio hydrangea looks more purple than pink.
Meanwhile, Emily Malsam’s bloom, shared on Instagram, is predominantly green with just a touch of pink in the center.
If you want to get more hydrangeas in your garden, it’s important to know what care your chosen variety requires. According to Southern Living, pistachio hydrangeas are versatile shrubs that thrive in USDA zones 5-9 and can be planted in garden bed groups or containers. If you plant them on the eastern side of your house, they’ll get the morning sun and afternoon shade they love. The variety typically reaches a height of 2 to 3 feet and a width of 3 to 4 feet, meaning they won’t take over a compact garden. For best results, keep the soil moist and well-drained, and provide extra water during high summer heat or drought.
The good news is that little to no pruning is needed, because this variety is a re-blooming one that flowers on old and new wood.
Fun fact: the name hydrangea comes from the Greek words “hydor,” which means water, and “angeion,” which means vessel. This refers to the plant’s seed pods, which look like small water jugs, explains The Old Farmer’s Almanac.
Each flower also has an emotional meaning associated with it, plus a link to a specific occasion. According to The Flower Expert, the hydrangea symbolizes heartfelt emotions and can be used to express gratitude for being understood.