(Red Stem Forsythia Sage) The thick, square, red stems of this variety of Forsythia Sage make it conspicuously different from the species and from everything else in your garden. Its jointed stalks look a little like rhubarb gone mad!
This statuesque perennial grows up to 10 feet tall, but spreads only 3 feet wide. It is a late bloomer from Mexico's Sierra Madre Oriental mountains where it grows at altitudes of 4,000 to 5,000 feet and tolerates temperatures down to 20 degrees F.
Short periods of colder temperatures don't kill Red Stem Forsythia Sage. It's part of a tough species. When knocked out by frigid weather, it usually comes back from root stock. A single plant forms a multi-stemmed thicket through slowly spreading rootstock, but can easily be kept tidy by removing unwanted stems.
Give this sage morning sun and afternoon shade as well as ample water. From fall until frost -- or into spring in mild winter areas -- it will reward you with buttery yellow flowers that make this shrub look like a Forsythia from a distance. But get up close and you will notice that it has roughly textured, heart shaped leaves as well as thick, square stems.
You can grow Red Stem Forsythia Sage as a screen, border or background plant. It even does well in containers. We love to plant Bog Sage, Salvia uliginosa at its base for a bright blue floral contrast.
Colors
RHS# 9B
RHS# 9D
RHS# 151D
RHS# 137C
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.
Here are some guidelines for success with this plant in your garden.
Click on an individual icon for more detailed information.
Exposure
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.
Growing Habit
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.
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.
Water Needs
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.
Blooming Season
This plant reaches peak bloom in Fall or flowers for much of the season.
It may begin flowering much earlier in the year. Bloom time for some Salvias lasts from Spring till first frost. Others begin flowering in Summer and continue into Fall. There are also Salvias that don’t bloom until late Fall and continue into Winter if grown in mild-Winter areas.
There is a great deal of overlap in blooming seasons for Salvias.
Wildlife
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
(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.
(Majestic Pink Sage) Very large richly colored hot pink blossoms and broad, glossy, intricately textured leaves are part of what makes Salvia x 'Majestic Pink' a standout. This is a complex hybrid involving several Salvia species from the ongoing breeding program at FBTS.
(Elk Vermilion Tropical Sage) Tall and full of large, orange flowers, Salvia coccinea 'Vermilion' is a clonal variety developed by FBTS.
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Posted: Friday, June 7, 2013
Synopsis:
Let there be light; let there be brightness. Yellows and oranges are cheerful colors to combine in a grouping of perennials. Pantone's spring 2013 designer colors -- golden yellow Lemon Zest 13-0756 and its hot orange Nectarine 16-1360 -- are fun colors to match to sages (Salvia spp.) that can turn up the light in a garden whether sunny or shady. Two groupings for sunny or shady gardens are offered
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Posted: Thursday, October 31, 2013
Synopsis:
Declining numbers of Monarch butterflies is an ongoing problem. Due to research by organizations such as Monarch Watch and the Xerces Society as well as tracking efforts by the Mexican government, we now know about the dramatic ups and downs the species has experienced in the past 20 years. At Flowers by the Sea Online Nursery, we grow butterfly favorites to help you plant gardens supporting the migration of Monarchs and other butterflies.
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Posted: Saturday, May 2, 2015
Synopsis:
True sages are members of the Salvia genus and number in the hundreds. They are native to a wide variety of environments worldwide, which is why some are ideal for the dry gardens of California and others can handle the abundant moisture of the American Southeast. Flowers by the Sea raises many sages that grow well in the Southeast, including some that are either native to the region or have jumped fences from gardens into the wild.
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