They come in a variety of sizes, shapes and, of course, colors. Hydrangea cold tolerance varies among varieties, so you may need to think about winterizing hydrangea plants. drought tolerance, frost damage, Hydrangea arborescens, Hydrangea macrophylla, Hydrangea paniculata, Hydrangea quercifolia, shade About Bobbie Bobbie : An avid gardener for 45 years and a landscape designer for 37 years, she is continually learning from seminars and conventions of the trade associations to which she belongs. by Elaine Homstad, Fairfax Master Gardener. The unique ability of the Hydrangea is that the colour of the flower can change from Blue, White to Pink depending on the pH of the soil, making this flower truly adaptable.

Important: Since hydrangeas tend to set their blooms on the ends of the branches, it is important to keep these covered all winter. This must be left on the hydrangea all winter and into the spring until the last possible frost has past. Share this article on social media. Plant database entry for Hydrangea 'Sandy Summer' with one image and 16 data details. When it is uncovered, the hydrangea will already have started to leaf out. Frost-hardy plants will survive several days of frost and snow, and temperatures down to -10C, and they'll come out looking fine. They start to push out new growth once warmer temperatures are felt, but then when the weather drops again, it can cause serious damage to that fresh growth. To break down the scientific name, Hydrangea quercifolia, we are all familiar with the Greek root hydr-as a reference to water, as in "hydrate."

Hydrangea Cold Tolerance.

Properly caring for your potted hydrangea over winter will determine how successful the blooms are in the following summer, and how many you get. Hydrangeas & Frost. Some people see a resemblance between a hydrangea seed pod and a water vessel. While similar in appearance to many other so-called mop-head or bigleaf hydrangeas, Endless Summer is distinct in its flowering pattern. This cultivar has large flowerheads of intricate double blossoms layered on top of one another. Image by Flickr.com, courtesy of Marjon Kruik. This is especially risky for bigleaf hydrangeas. ... Additionally, Endless Summer is one of the most frost-tolerant hydrangeas available.

The foliage produces outstanding fall color and the flowers take on purplish-pink hues when dried. Well drained soil. Common names include bigleaf hydrangea, French hydrangea, lacecap hydrangea, mophead hydrangea, penny mac and hortensia. To learn more about hydrangeas visit our total guide to growing hydrangeas.

They might look a bit sad afterwards but they'll grow ok once it gets warmer. It didn't come close, until Summer Crush, whose rich raspberry red hues are the nearest to true red that any hydrangea has ever been in US soil. Hydrangeas are victims of their own eagerness -- pushing out new growth at the first sign of warm weather in early spring.

Updated Jan 12, 2019; Posted Aug 02, 2012 . Figure 1. Plus, panicle hydrangeas are the hardiest hydrangeas.

Endless Summer ® Hydrangeas is a collection of Hydrangea macrophylla perennial shrubs that have the unique ability to re-bloom throughout the spring and summer months, giving more color and visual appeal to your garden for a longer period of time.