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Year of the Salvia nemorosa
Year of the Salvia

[This fact sheet is provided as an educational service of the National Garden Bureau. Please credit National Garden Bureau when using all or parts of this article or referencing the “Year of the” program.]

From tropical forests to high-deserts and urban landscapes, Salvias are among the most common ornamental and culinary plant species you will find.

Although its name is derived from the Latin salvere, meaning to heal or good health, this moniker undoubtedly refers to the common herb Sage (Salvia officinalis) and not the ornamental Salvias we find flowering in our gardens. All Salvia are in the mint family Lamiacea and are cousins to landscape favorites such as Nepeta (Catmint) and Monarda (Beebalm). Indeed, many Salvia species reveal their history through their minty fragrance contained in their leaves. There are more than one thousand species in the genus; however, most are not hardy in northern gardens. This article focuses on the hardy types.

Hardy Salvia History

English botanist George Bentham did the first extensive documentation of this genus in 1836. One fascinating characteristic of Salvia flowers is that they contain a trigger mechanism that deposits pollen on the back side of visiting bees. This pollen then becomes transferred to female Salvia flowers that share the same receptive flower parts encouraging pollination among the same or similar species. The beautiful Salvia we find in our modern gardens originates from plants found in the wooded elevations of Eurasia. The most common hardy species are S. nemorosa and S. pratensis and the many hybrids derived such as S. x sylvestris and S. x superbum. Today, we typically refer to the entire class of these hybrids as S. nemorosa (nemorosa from the Latin ‘of woods’) for simplicity and the reason why we commonly refer to these hardy plants and Woodland Sage. Interestingly, all plants with the common name of Sage are Salvia, but we reserve the true genus name for ornamental rather than culinary species. The Sage you keep in your kitchen is actually Salvia too, and it can also be winter hardy in the north; however, they have lesser ornamental value.

Key Cultivars

Much of the early work in hardy salvia breeding was done by German plantsman Ernst Pagels who is credited with breeding varieties ‘Blauhugel’ (Blue Hill) and ‘Schneehugel’ (Snow Hill) shortly after the Second World War. Both of these are still in commercial cultivation and are found in garden centers during spring and summer.

Today, there are several hundred varieties of hardy garden Salvia from which to choose. Likely the most common and well-known cultivar, also a product of innovative German breeding is ‘Mainacht’ (MayNight). Named Perennial Plant of the Year by the Perennial Plant Association in 1997, May Night remains a favorite among landscapers for its abundance of indigo blue flowers and pest and disease resistance. Other standards include the upright, dark-stemmed variety ‘Caradonna’ and the dark purple cultivar ‘Ostfriesland’ (East Friesland). These tried-and-true classics are being replaced slowly with exciting new varieties from flower breeders in the United States and Europe. Award-winning cultivars such as ‘Blue Marvel’ and ‘Rose Marvel’ present extra-large flowers and provide a much longer flowering window. Newcomer ‘April Night’ is earlier to flower, as the name suggests, and is especially popular with southern gardeners. ‘New Dimension’, ‘Bordeau’ ‘Salute’ and ‘Swifty’ are all new introductions that are bred for improved garden performance. Of interest to the category, breeders are hybridizing S. nemorosa and S. pratensis to provide plants with more open and airier flower presentation. Examples include the Fashionista™ series and Salvia ‘Blue by You’.

Care and Cultivation

Hardy Salvia like S. nemorosa are considered to be care-free and easy to manage in the garden. They can be in place for years without a need for dividing. They are also a favorite of pollinators like bees and hummingbirds. As a member of the Mint family, their leaves are not on the preferred forage list of deer and rabbits and considered to be a great garden addition where these creatures are a nuisance. Be sure to plant in a location where they will receive at least one-half day of direct sunlight, as this will provide an environment that encourages the highest degree of flowering. Salvia prefers soils rich in organic matter, so it may be necessary to add compost, peat moss or topsoil to your sandy or heavy clay soil before planting. Once established in the garden, Salvia is quite drought tolerant and require watering only when other landscape shrubs such as Hydrangea show signs of wilting. To maintain healthy green growth, plan on fertilizing your Salvia plants when they emerge from dormancy in the spring and once again in early summer. Applying a balanced fertilizer such as 15-15-15 according to label directions will do the trick. Many gardeners experience only one spring flowering display from Salvia because they are unaware that these garden beauties can be encouraged to rebloom several times during the summer and well into fall. Once the first flush of flowers has finished and the flower stems have turned brown, cut the plants back aggressively to about one-third their original size. Doing this causes the Salvia plants to push up new shoots from the root system, and you will be rewarded with a new flush of flowers in four to six weeks. Repeat this process, and it’s possible you may see as many as three or more full cycles of flowering in a single season. Remove all Salvia foliage after it turns brown in the fall to promote healthy new growth the following spring.

Hardy garden Salvia are delightful additions to any central and northern garden, and it is fitting that the National Garden Bureau has deemed 2019 as the Year of the Salvia!

Interested in buying Salvia nemorosa for your garden? Click the links below to shop our members:

Breck's - National Garden Member
burpee.com
harrisseeds.com
ParkSeed.com
jungseed.com
provenwinners.com
brentandbeckysbulbs.com
americanmeadows.com

The National Garden Bureau recognizes and thanks to Darwin Perennials as author and contributor to this fact sheet. 

This fact sheet is provided as an educational service of the National Garden Bureau. There are no limitations on the use but please credit National Garden Bureau when using all or parts of this article or referencing the Year of the program.

Each state in the U.S. has their own list of invasive species. Before trying a new plant in your garden, refer to the USDA’s National Invasive Species Information website or check with local agencies such as an Extension specialist.

Please consider our NGB member companies as authoritative sources for information. Click on the Member Directory for details about our members. Gardeners looking for seed and plant sources should select “Shop Our Members” at the top of our homepage.

Popular Offers

Salvia New Dimension Rose by Pan Am Kieft Seed - Year of the Salvia - National Garden Bureau

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LEARN MORE
Year of the Salvia SlideShare Presentation

Download the Year of the Salvia nemorosa presentation on SlideShare.

Click here to download the Year of the Salvia logo.

Click here to download the Year of the Salvia nemorosa PowerPoint presentation.

Click here to download a printable version of this Fact Sheet.

Click here to download an 8″ x 10″ printable sign.

Click here to download a 5″ x 7″ printable sign.

Click here to download a “Did You Know” Fun Facts about Salvia nemorosa.

Click here to download a 24″ x 36″ printable poster (PDF).

Click here to download a 24″ x 36″ printable poster (JPG).

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