| Kingdom: | Plantae |
| Clade: | Embryophytes |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Order: | Caryophyllales |
| Family: | Amaranthaceae |
| Subfamily: | Amaranthoideae |
| Genus: | Amaranthus L. |
Amaranthus is one of those flowers that doesn't quite look like it belongs in the traditional flower garden—and that is precisely what makes it so special. With its long, cascading tassels, unusual texture, and rich colors ranging from deep burgundy and crimson to green and gold, amaranthus brings movement and drama to a bouquet in a way few other flowers can.
Some varieties trail downward in long, rope-like strands, while others grow upright in feathery plumes. There are even varieties grown primarily for their colorful foliage rather than their flowers. In the world of floral design, this diversity makes amaranthus an incredibly versatile flower, capable of adding both structure and a sense of wildness to an arrangement.
The name Amaranthus comes from the ancient Greek amarantos, meaning “unfading” or “that which does not wither.” It is an especially fitting name for a flower whose colors can remain remarkably vibrant even after drying. For centuries, this characteristic has connected amaranthus with ideas of endurance, remembrance, immortality, and everlasting beauty.
A Brief History of Amaranthus:
Amaranthus has a long and fascinating history that extends far beyond its role as an ornamental flower. The genus contains numerous species that have been cultivated for food, medicine, dye, ceremony, and ornament across different parts of the world.
Amaranth was an important food crop for Indigenous peoples of the Americas long before European colonization. In Mesoamerica, it was cultivated alongside other staple crops and held significant cultural and ceremonial importance. The seeds are highly nutritious, and several species continue to be cultivated as grain or leafy vegetables today.
The plant also has a long history in Europe. Its unusual flower heads and ability to retain their color after drying made amaranthus a natural subject for gardens, poetry, and flower symbolism.
One of its most famous literary appearances comes from John Milton's Paradise Lost, where Milton describes an “immortal” amaranth growing in Paradise. The flower's association with something that does not fade or die helped reinforce the symbolism that had surrounded it for centuries.
Although the amaranthus we most often encounter in floral design is grown primarily for its ornamental qualities, it belongs to the same fascinating genus that has been intertwined with human agriculture and culture for thousands of years.
Where Does Amaranthus Come From?
Amaranthus is a remarkably widespread genus, with different species originating across tropical and temperate regions of the Americas, Africa, Asia, and Europe. Many of the species used as ornamental and cut flowers have tropical or subtropical origins.
The plants we grow for cut flowers are particularly fond of warmth. Amaranthus grows vigorously when temperatures are warm, with ideal growing conditions generally falling around 70–90°F. It is a true summer flower and thrives during the heat and long days of the growing season.
This love of warmth is one reason amaranthus has become such a wonderful late-summer flower for local flower farmers. Once the summer garden is really getting going, amaranthus can put on tremendous growth, sometimes reaching four to six feet tall depending on the variety and growing conditions.
There is also an interesting distinction between the amaranthus grown as a cut flower and the amaranth cultivated for food. They belong to the same genus, but different species and cultivars have been selected for very different purposes. Some are grown for their grain, some for edible leaves, and others for their spectacular flowers and foliage.
Growing Amaranthus:
Amaranthus is relatively straightforward to grow, provided you give it what it wants most: warmth, sunlight, and room to grow.
Amaranthus is generally propagated from seed. It can be started indoors and transplanted, but because it grows quickly in warm conditions, it can also be directly sown into the garden once the soil has warmed. Cornell's cut-flower research notes that seedlings can be ready for transplanting in roughly four to five weeks, while direct sowing is also an option.
For the healthiest plants, choose a location with full sun and well-draining soil. Amaranthus is a warm-season annual, so it should not be planted outside too early. Cold soil can slow germination considerably, while warm soil encourages the rapid growth that amaranthus is known for.
Once established, plants can grow surprisingly tall. Many cut-flower varieties reach four to six feet, and some can become even more substantial under ideal conditions. Depending on the variety, staking or other support may be helpful.
For cut-flower growers, spacing and pinching can also influence the final shape of the stems. Pinching plants earlier in their growth can encourage branching and produce stems that are more useful for floral design.
And then, suddenly, after weeks of growing, those unmistakable tassels appear.
Amaranthus in the Flower Garden:
Amaranthus is not a shy plant. In the garden, it has a strong architectural presence and can quickly become one of the tallest and most dramatic plants in the bed.
The trailing varieties are particularly beautiful when allowed to spill naturally, their flower heads cascading downward like ribbons. Upright varieties create a completely different effect, forming tall plumes that rise above surrounding plants.
The color range is equally wonderful. Deep burgundy and wine-colored varieties are especially dramatic, while green and golden varieties bring a lighter, more textural quality to the garden.
Because amaranthus is so vigorous, it works especially well when planted among other late-summer flowers that can hold their own alongside it. Dahlias, zinnias, cosmos, sunflowers, and other warm-season flowers make natural companions.
It is also a favorite among pollinators and beneficial insects, adding ecological value to its ornamental appeal.
Caring for Cut Amaranthus:
Amaranthus is a relatively easy cut flower to care for, although its unusual form means it benefits from a little attention when first brought home.
Begin by giving the stems a fresh cut with a clean, sharp knife or pair of floral shears. Remove any foliage that would sit below the water line and place the stems in a clean vase filled with fresh water.
Amaranthus prefers to be kept well hydrated. Change the water regularly and recut the stems as needed to help maintain good water uptake.
For flowering varieties grown for their dramatic flower heads, harvesting at the right stage is important. Cut-flower growers generally harvest when roughly three-quarters of the florets are open. Under good conditions, showy flowering varieties can last about a week in water at room temperature.
Like most flowers, amaranthus will appreciate being kept away from direct sunlight, heating or cooling vents, and particularly hot locations.
One of the great things about amaranthus, however, is that its life does not necessarily end when its time in the vase does.
Drying Amaranthus:
Amaranthus is one of those rare flowers that can be just as beautiful dried as it is fresh.
Its name—“unfading”—starts to make sense when you see what happens after the water is gone. Many varieties hold onto their rich color and distinctive shape, making them excellent candidates for dried arrangements and long-lasting floral work.
To dry amaranthus, gather the stems and hang them upside down in a dry, dark, well-ventilated location. Allow them to dry completely before incorporating them into an arrangement.
The trailing varieties are particularly magical dried. Their long tassels retain their cascading shape and can bring movement to an arrangement long after fresh flowers have disappeared.
Amaranthus in Floral Design:
For a florist, amaranthus is less about a traditional flower shape and more about line, movement, texture, and color.
Trailing amaranthus can spill dramatically over the edge of a vase or cascade through a bouquet, creating a sense of movement that draws the eye. Upright varieties can add height and structure, while the richly colored flower heads provide a strong visual counterpoint to softer, rounder flowers.
It is particularly beautiful paired with flowers that have contrasting forms. The rounded heads of dahlias, the open faces of cosmos, or the architectural forms of sunflowers all provide a wonderful counterbalance to amaranthus's long, flowing lines.
And because amaranthus can be found in such saturated colors, it can also act almost like a brushstroke of color within an arrangement.
For us, that is part of its appeal. Amaranthus doesn't try to imitate the traditional idea of what a flower should look like. It brings something stranger, wilder, and more unexpected to the bouquet.
Symbolism and Significance:
The symbolism of amaranthus begins with its name.
Derived from the Greek amarantos, meaning “unfading,” the flower has long represented immortality, endurance, remembrance, and everlasting beauty.
Its ability to retain its color after drying only deepened these associations. While many flowers are beautiful precisely because they are fleeting, amaranthus seems to resist that inevitability. Even after the growing season has passed, its form and color can remain.
This makes amaranthus particularly meaningful in arrangements intended to commemorate, celebrate, or mark the passage of time.
Its symbolism also feels appropriate for the flower itself. There is something almost defiant about those long tassels continuing to hold their color and shape long after other flowers have faded.
A Flower That Doesn't Follow the Rules:
Amaranthus is a flower of contradictions.
It can be delicate and dramatic.
It can trail or stand upright.
It can be grown for its flowers, its foliage, or its seeds.
It can be enjoyed fresh or dried.
And while its flower heads appear almost impossibly delicate, the plant itself is vigorous, heat-loving, and remarkably productive.
Perhaps that is why it has remained so compelling across cultures and centuries.
From an important Indigenous food crop to an ornamental garden plant, from ancient symbolism to contemporary floral design, amaranthus has continually found new ways to be useful and beautiful.
And in a bouquet, it brings something that is difficult to achieve with almost any other flower: movement.
Conclusion:
In the tapestry of nature's seasonal symphony, amaranthus stands apart with its dramatic form, saturated color, and unmistakable sense of movement. From its ancient associations with immortality to its modern role in gardens and floral design, it is a flower with a history as distinctive as its appearance.
It reminds us that beauty does not always have to be delicate, symmetrical, or familiar.
Sometimes beauty hangs in long, winding tassels. Sometimes it towers above the garden. Sometimes it dries beautifully and refuses to disappear.
Amaranthus may be an unconventional flower, but perhaps that is exactly why we love it.
It doesn't simply fill a space in an arrangement.
It makes you look twice.