(Blue Black Mexican Sage) This spectacular and hardy native of Central Mexico is exciting to watch as new growth shoots upward rapidly from its root stock in spring. Its large, vibrant, purple-blue flowers bloom for about 10 months and are profuse from late autumn through winter on flower spikes up to 20 inches long.
Calyxes similar in color to the flowers they cup give this sage its scientific name, which mean of the same color. Easy to grow in mild climates in partially shaded locations, this woodland plant is sometimes mistaken for Salvia guaranitica. However, it is a different species.
Blue Black Mexican Sage works well up against a fence or building that offers morning sun and afternoon shade as well as protection from wind. Plant it as a shrubby border, screen or container plant. It's ideal for moist areas.
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Posted: Saturday, December 10, 2011
The Blue Species
When I think of Winter blooming "font-style: italic;">Salvias, the warm colors – red, orange and pink – come to mind first. Possibly because THE most spectacular Sage of all, "font-style: italic;">Salvia gesneriifolia 'Tequila', is a presence to contend with, growing for us over 16 feet tall and 30 feet across! But looking around our gardens this cool day, there are a number of very fine blue and purple Sages in bloom now. So in Part 2 of the Winter "font-style: italic;">Salvia series, we’ll discuss these fine plants.
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Posted: Friday, April 25, 2014
Regional differences in seasonal temperature and humidity affect the choice of Salvias to plant in hummingbird gardens. The varying seasons in which particular sages bloom and the part of the world where they originated also determine whether they attract hummingbirds. Flowers by the Sea Online Nursery offers suggestions based on regions and seasons.
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Learn more about how we analyze plant colors
We based our analysis of this plant’s floral and foliar color on the internationally standardized color system published by the U.K.’s Royal Horticultural Society. Called the RHS Large Colour Charts, this publication is a boxed set of color swatches arranged in fans and containing all the colors that RHS has identified in horticulture. RHS gives each color a common name and code number.
Each swatch has a small hole punched into it. We place the swatch over a flower petal and compare the blossom’s color to that of the card. When using RHS colors to compare plants that you want to combine in a flowerbed, in bouquets or in some other manner, RHS says to view them indoors in north light. If you are matching our digital swatches to flowers already in your garden, pluck two or three fully open blossoms of each plant that requires analysis.
You may find that the plant you receive from FBTS varies somewhat in color from what appears in our color analysis or our photograph due to a number of factors, including:
- Variations in photographic colors based on lighting level at different times of day
- Differences in the resolution of digital screens
- Seasonal changes in plant color due to changes in temperature and plant cycle and
- pH or soil chemistry that varies from one locale to another and causes color shifts.
Finally, RHS notes that you shouldn’t attempt color matching when your eyes are fatigued.
See other plants with similar colors
See other plants with colors in a split complementary relationship
See other plants with colors in a triadic relationship
Here are some guidelines for success with this plant in your garden.
Click on an individual icon for more detailed information.
This plant needs or tolerates more than six hours of intense sunlight daily. Many Salvias only thrive in wide-open locations where they receive long hours of full sun. However, full-sun species sometimes tolerate a bit of partial shade. Or a Salvia that loves partial shade may be amenable to spending part of its time in full sun.
In general, this sun/shade adaptability shows up in Salvias that do best in cooler climates when grown in full sun and thrive in hot climates when partial shade is available. So full-sun Salvias sometimes are also categorized as partial-shade plants and vice versa.
This plant grows well in partial shade, such as the kind on the edge of woodlands or under deciduous trees with breaks in the foliage through which dappled sunlight penetrates. Many Salvias thrive in partial shade, including ones that spend part of their day in full sunlight. Some species need partial shade to overcome severe heat and dry soil.
This plant grows well in an outdoor container, such as on a patio.
Some containerized Salvias leaf out and flower year after year following a period of dormancy. Annuals in containers may die back and appear to grow again when they reseed.
During extreme heat, check the soil in container plantings once or twice daily to be sure it doesn't completely dry out. Feel its surface for coolness, then gently poke a finger into the soil to check for dryness.
To create a harmonious landscape plan, it is important to consider the heights of individual plants.
Height also affects function. Short Salvias often make excellent ground covers that conserve soil moisture and discourage weeds while also brightening your yard. Medium-height Salvias, such as ones 36 inches tall, often are ideal border plants. A tall Salvia planted singly can highlight a landscape; multiple plantings can form an attractive screen.
Plant this herbaceous species in the USDA Zones where it grows as a perennial, returning year after year.
After dying back to the ground at frost, herbaceous perennials emerge in the Spring with soft, new growth. A Salvia that is perennial in one region, may be an annual in another depending on local conditions, such as winter temperatures.
If you live in USDA Zone 5, for example, Salvias in our catalog cited as growing well in Zone 5 or lower will be perennial. Those cited as doing well in Zones 6 or higher may do well in Zone 5, but generally will act like annuals coming back from seed instead of the parent plant’s roots.
Shrubs are characterized not only by bushy foliage but also by woody stems.
Shrubby Salvias may be evergreen or deciduous. Some Winter-blooming, deciduous species lose their foliage during hot weather. Some Salvias, classified as subshrubs, have a combination of woody and tender, herbaceous growth.
Salvia shrubs range from tall, upright species to ground covers of short to moderate height. Their spread may match or exceed their height
By considering the width of a plant, you can determine how many to place in a row or what other plants to grow with it.
For example, a narrow, moderate-height Salvia may look good interplanted with bushier species, kind of like Mutt and Jeff.
In contrast, wide-spreading Salvias are economical for hiding lengths of wall and fence or for creating hedge-like divisions in a yard.
Plant hardiness Zones defined by the U.S. Department of Agriculture tell you the minimum temperatures a plant can withstand in your garden. The USDA divides the nation into winter climate areas from coldest (Zone 1) to warmest (Zone 11).
However, it is sometimes possible to grow a Zone 6 Salvia as a perennial in Zone 5 if you provide preferential care, such as winter mulching and a location sheltered from harsh winds. In contrast, a Zone 9 Salvia may act like a perennial in Zone 10 if given a bit of shade or extra water.
This plant needs regular watering based on what is appropriate to your local conditions.
In some extremely hot, arid climates, this may mean daily watering in Summer. Although many drought-resistant Salvias survive on little to no watering due to local rainfall and deep roots meeting their moisture needs, others need regular doses. The size and frequency of the dose depends on your climate.
This plant thrives on or at least tolerates lots of water, especially when soil is well drained. They are generally not suitable for poorly drained soils.
A number of Salvias hold up well in areas where rainfall is a regular occurrence. Some even tolerate boggy conditions but only for a brief time. These are usually top-notch plants for regions of the country, such as the Southeast, where summers are soggy.
This plant reaches peak bloom during Spring or flowers for much of the season.
However, it may begin flowering sooner. Some Spring-blooming Salvias begin flowering in Winter; others start in Spring, keep producing color through summer and may continue on into autumn and first frost. Still others flower only in Spring.
There is a great deal of overlap in blooming seasons for Salvias.
This plant flowers throughout Winter.
Many winter-blooming Salvias begin flowering in late Fall and continue on into Spring; there is a lot of overlap in blooming seasons for Salvias. Winter bloomers include evergreen as well as deciduous perennial Salvias.
Depending on type, they grow well in USDA Zones ranging from 8 to 11 with some tolerating the chill of Zone 7.
Honeybees love this plant’s nectar. As a honeybee burrows down into a Salvia’s nectar-rich flowers to reach dinner, it accidentally gathers pollen and drops it on the stigma of that blossom or of ones on other nearby Salvias. Fertilization results in seed production.
By growing honeybee favorites, you attract these helpful pollinators to all your flowering plants and increase productivity
Unless local forage is in short supply, most deer likely will avoid this plant.
It appears that deer dislike Salvias, in general, due to their volatile oils that make the plants so fragrant and savory in cooking. However, the only completely deer-proof plants are the ones grown beyond reach.
Based on our experience and reports from customers, hummingbirds (Trochilidae spp.) love this plant.
Hummingbirds exist only in the Americas where their 300-plus species are particularly fond of the nectar in brightly colored Salvias from the Western Hemisphere. However, if favorites aren’t available, they dine on the nectar of most Salvias.
Hummingbirds repay thoughtful plantings by helping to pollinate your garden
(Amethyst Sage) Growing up to 12 inches long, the triangular basal leaves of Salvia amethystina subsp. ampelophylla are the largest we know among sages. They have long silky hairs on their undersides and are fragrant when bruised.
(Blue Sky Mexican Sage) The small flowers of this plant from Neuevo Leon and Tamaulipas, Mexico, are an attractive combination of amethyst-purple and white. The spectacular leaves, which are large and lightly textured, appear blue-green on top and purple-green underneath.
(Silly Mexican Sage) Also known as Salvia roscida, this close relative of Blue Sky Mexican Sage (Salvia caudata 'El Cielo Blue') has thousands of deep violet-blue flowers with prominent white bee lines.
(Smith College Mystery Sage) This mysterious species came to us via Smith College in Northampton, Massachusetts. We refer to it as "Mystery Sage" as the origins of this fine plant are unclear.
(Mystery Peruvian Sage) Airy spikes of fuzzy, bright orange-red flowers and grassy green calyxes mark this Peruvian sage as a mystery worth pursuing. Little is certain about its parentage.