Salvia sylvestris Blue Hill
Blue Hill Sage
15" tall x 18" wide (cutting propagated). This is a knockout performer from Germany, valued for its sturdy, compact stature, summer-long blooming habit and unique, clear blue flowers. Like an unsung hero, "Blue Hill" blends subtly into your garden bringing out the best in other plants, highlighting the colors of the flowers that surround it. Modest amounts of water and any enriched garden soil keep this plant happy and blooming.
|Common Name||Blue Hill Sage|
|Botanical Name||Salvia sylvestris Blue Hill|
|Zones||4, 5, 6, 7, 8, 9|
|Light Requirements||Full Sun|
|Mature Height||15" tall|
|Mature Spread||18" wide|
|Ships As||Potted Plant|
|Planting Season||Spring / Summer, Fall|
|Soil Type||Sandy Soil, Clay Soil, Average Soil|
|Amount of Rain||10 to 20", 20 to 30", 30 to 40" (with care)|
|Advantages||Deer Resistant, Fragrant Flower / Foliage, Bee Friendly, Attract Butterflies, Rabbit Resistant|
|Ideal Region||Suitable Above 7000 ft, Anywhere In The US|
|Neonicotinoid-Free||Yes - Learn More|
|Ships to Canada||No|
Tips For Growing Salvia
Salvia (commonly referred to as ‘Sage’) represent a huge family of ornamental plants that attract a variety of pollinators to their nectar rich flowers. They are resistant to deer and rabbits.
- Plant in full sun.
- Plant native Western Salvia varieties in soil that is low fertility and well-drained.
- Plant Old World Salvia in a wide range of soils (loams, sand) including clay.
- Many spring-flowering varieties of sage will re-bloom in fall if deadheaded after the first bloom.
- New transplants need regular irrigation their first growing season to establish themselves. Once established they will need regular, deep irrigation during hot, dry weather.
- During fall garden clean-up, wait to cut back the plants until spring for improved cold hardiness.
- In colder USDA zones (zone 6 and below) it is essential to give Native Southwestern and Southwestern hybrids protection from the extreme cold their first couple winters in the garden. Mound up pine needles or fallen autumn leaves over and around the base of the plant.
Western Native Salvia: : It is from the Western US that we find our most beautiful native salvia species. For attracting hummingbirds, there are no finer flowers than the Western native sages. Typically, this group of Salvia prefer ‘lean’ (not very fertile), well drained soils. They will grow in dry clay conditions in arid climates but will rot out in clay soils where there is more than about 15 to 18” of precipitation annually.
Western sages include:
- Salvia greggii - ‘Furman’s Red’, ‘Cold Hardy Pink’
- Salvia hybrids - ‘Maraschino’, ‘Raspberry Delight’, ‘Ultra Violet’ and ‘Burgundy Seduction’.
- Salvia pachyphylla and Salvia dorrii is recommended for arid western gardens.
- Salvia azurea and Salvia reptans - Early fall bloomers with excellent cold hardiness.
Old Wolrd Salvia: The Old World Salvia include some of the very best, most durable, longest-lived perennials. These salvia are an excellent choice for gardeners across most of the United States. ‘Old World’ Sages bloom primarily in shades of blue, pink and white. They are well adapted to cold climates and a wide range of soils including clay. The European Salvia are incredibly attractive to honey bees, many of our native bees and bumble bees as well as butterflies.
Old World varieties include:
- Salvia syslvestris'Lyrical Rose', 'May Night', 'Little Night', 'Caradonna' and 'Marcus'.
- Salvia daghestanica
- Salvia verticiliata
More in-depth guidance for growing Salvia: Planting Nectar Rich Salvia to Attract Pollinators to the Garden, Sage Advice, The Spectacular Salvia and Cold Hardy, Late Summer / Early Fall Blooming Sages.
View more Planting Guides, or download our complete Planting Guide (pdf) for tips on caring for your plants when you receive your order, as well as planting instructions for Perennials, Spring-Planted Bulbs, Fall-Planted Bulbs, Cacti & Succulents, Xeric Plants and more.
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Comments about Salvia sylvestris Blue Hill:
This is a very hardy salvia. I planted it in spring 2014 and it presented with a beautiful show by summer! It is starting to come up this spring and I am considering splitting it already because it got large enough last year to make another plant!
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USDA Hardiness Planting Zones
To determine if a plant is sufficiently cold hardy, the USDA created numbered zones indicating winter low temperatures; the lower the zone number the colder the winter.
- If the coldest winter temperature expected in your area is -15°F (zone 5) then any plants rated zones 3-5 will survive the winter temperatures in your area.
- If you live in very warm winter areas (zones 9-11) plants with zones 3-4 ratings are not recommended. The lack of freezing winter temperatures do not provide a time for winter dormancy (rest).
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