
Hydrangea quercifolia 'Snow Queen' (oakleaf hydrangea)
Snow Queen oakleaf hydrangea holds her flowers alert, like a true queen. They are upright and don't flop - perhaps as much because they are midrange in size around 8" long.
Shrub size expectations are also midrange at 6-8' tall. She's more stately than our Jetstream, but the Titan 12' tall Alice type dwarfs her.
The cone-shaped flowers have ample and visible small, fertile florets to attract the pollinators to her court. Once pollinated the flower heads antique pink in climates where nighttime temps fall below 70 degrees.
Like every oakleaf hydrangea I've even met, Snow Queen will have burgundy or red (sometimes both!) fall color, even in our muggy zone 8a.
The bark is highly pleasing - exfoliating in cinnamon and tan shreds. Keep in mind you won't be able to see this bark until winter; dormancy in general is a good time to enjoy the subtitles of bark.
At the risk of discouraging you from growing this distinctive native hydrangea, I'm going to bring up a pathology issue. If you've ever had an oakleaf just up and die on you, I'm sorry to hear that. It's not because you have a black thumb! I've lost several over my 30 years of gardening and coached many through this issue. There's a bacteria in the soil that kills them. The symptoms are that they wilt and no amount of water can help them recover because the bacteria has damaged their vascular system, resulting in an afflicted oakleaf that can't transport the water you're giving it. They succumb to the pathogen and they die. It's a hard reality that sometimes strikes, but I have some tips:
- please don't plant any hydrangea into the same spot to replace a dead oakleaf
- please keep trying in a different location; it's worth the effort to have an oakleaf hydrangea (or three!) in your garden that will live long-term (or even a short-term decade)
- try to encourage beneficial bacteria and fungi in your garden by applying products that contain mycorrhizae (I use MycoApply Suluble MAXX) and other beneficial bacteria (I use Actinovate)
- spreads to colonize an area
- cold tolerant
- heat tolerant
- long flowering period
- cut flowers
- Spring: medium green
- Summer: medium green
- Fall: burgundy, red
Yes, oakleaf hydrangea attracts pollinators to the inconspicuous fertile florets nestled amongst the showy sterile florets.
Sun or shade?
Both. In The South, try to find a spot that gets morning sun and afternoon shade. It flowers better with some sun, plus sun keeps them a little more compact and dense; they open up, stretch out, and flower less with more shade. In Northern climates then can do with full sun, but look for a situation where they're in an area protected from the coldest temperatures - they may die back some in northern winters, but they flower on new wood so you should get flowers every year in The North.