Deinanthe caerulea – A curious Blue Flower To delight your friends

Deinanthe caerulea - a pretty hydrangea like (but not!) woodland garden flower
Summer is the time for vacations, warm temperatures, and flowering hydrangeas. Among the things that New Englanders come to count on in summertime include ice cream and hydrangeas in flower. Just in our small town of Boothbay, never have I seen so many hydrangeas planted. Due to our mild summers, hydrangea blossoms here along the Maine coast are enormous. It must be the ample moisture, warm days, and cool nights that lead to the huge flowers. Everyone loves to see big hydrangeas in the garden but lurking in the shadows is a lesser-known, herbaceous relative: Deinanthe caerulea. This native of China has the incredibly creative common name of “false hydrangea.” Come on guys, can’t we think up a better name than that for this strangely attractive plant with eye-catching blue flowers? How about “ground-cover hydrangea?” Or “little blue rarity that nobody else has?”

Dienanthe caerulea by Kristine Paulus (CC) via www.pithandvigor.com

We have a healthy grouping of Deinanthe at Coastal Maine Botanical Gardens planted in the shade of a mature larch tree. A friend was admiring the clump this past weekend and suggested that we move some plants to a sunnier location as they would get larger. I have a couple of spots in mind as right now, they are really tucked away so only the plant connoisseurs will recognize them. For those who do catch a glimpse of them, they will see what look like small hydrangeas with nodding, light cerulean blue flowers. Our plants are around 2 feet in height and slightly more in width. In researching this post, I see that there is also Deinanthe bifida along with hybrid between D. bifida and D. caerulea. I definitely will look to add these to the gardens this year as well. Have you grown any of the false hydrangeas? If so, what has been your experience with the plants?

– Rodney

Images: Rodney Eason, Kristine Paulus (by CC)

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It looks like hydrangea - but its not... Deinanthe caerulea

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rodney eason

Rodney Eason - Director of Horticulture and Plant Curator at Coastal Maine Botanical Gardens, father of 4, husband to a Renaissance woman. I spent the first part of my life in North Carolina, the middle in Pennsylvania, and now I am determined to become a Mainer  while keeping my southern drawl. I consider the rhetorical question, "you're not from around here, are you?" a compliment. I love great gardens, beautiful plants, and inspiring architecture. Because of this, I am on a lifelong quest to find a garden that artistically combines beautiful plants while being centered around an evocative building. For me, this would be Beatrix Farrand's Dumbarton Oaks, with the plants of Lotusland and Chanticleer, around Fay Jones' Thorncrown Chapel. My wife and I are now making our new home and garden in a 130 year old New England house with a farmer's porch near the Damariscotta River in coastal Maine. When our kids get into college, we want to hike the Appalachian Trail as a family over a summer break. My likes (in random order): the smell of fresh basil and rosemary, bold foliage, India Pale Ale, good running shoes, Top Gear, the smell of New England in the fall (it reminds me a bit of English Leather, which my grandfather wore), and the sound of our family laughing together around the dinner table. I dream of one day owning an old Toyota 4X4 pick-up and seeing the Avett Brothers in concert.
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