The succulent plant species known as Agave Americana (a-GAH-vee, a-mer-ih-KAH-na) is a member of the Agave plant genus.
It is a species of flowering plant that belongs to the Asparagaceae (Agavaceae) family and is indigenous to Mexico as well as Texas, New Mexico, and Arizona in the United States.
You might hear it referred to by its common name, such as:
- Centennial plant
- Sentry device
- Aloe americana
Since it can live for 100 years, people like to call it the century plant.
What is the lifespan of a century plant?
The towering Agave americanacentury plant transforms any landscape into a showpiece.
The central stem of this plant matures to a height of 20 feet, with blue-green or gray-green rosette leaves that can reach up to 6 feet long and 10 inches wide. The leaves feature needle-like spines on the tip and sharp, serrated edges.
Although it was formerly thought that century plants might live for 100 years, hence the term “century,” they actually only have a 30-year lifespan on average.
The century plant is monocarpic, meaning it only produces one flower in its lifetime, which is followed by its quick demise.
When the plant reaches maturity, it harnesses the energy it has accumulated over the years to create beautiful yellow flowers that are perched on the main stem.
You can propagate offsets—also known as pups for a more common name—to continue the agave plant’s history.
Although its popular name is century plant, the native to Mexico agave americana is also known as the maguey plant, Mexican soap plant, or American aloe.
The century plant is well-liked by garden enthusiasts since it is drought-resistant, low-maintenance, and highly attractive. Many gardeners still have trouble growing this succulent, though.
Continue reading to discover how to properly develop and care for your Agave americana century plant.
How long does a flower on a century plant last?
The lifespan of an agave blooming branch varies according on the cultivar. Some branches grow more quickly than others, and vice versa.
The agave’s blooming period typically lasts between three and four months. The blossoming bloom then begins to face downward and to fall off after this time.
The bloom stalk can grow to enormous heights during this little time even though it lives too briefly compared to the agave plant’s overall lifespan.
Once the branch has grown to its full height, it will begin to produce other branches, each of which will house a flower that bears both seeds and nectar.
Your century plant’s blossoms bloom and can live for approximately a month before starting to wilt and perish.
What occurs if a century plant perishes?
A century plant will only ever bloom once in its lifetime, but you don’t have to wait that long to see it. The name of this succulent is deceiving because it typically blooms after 10 years, but typically before it reaches 30. It does so dramatically, shooting up a flower stalk that is straight and could reach a height of more than 20 feet. The extremities of horizontal branches that extend from the flower stalk, which resembles an enormous asparagus spear, bear 3 to 4 inch long yellow-green flowers.
After blooming, century plants start to die. Monocarpic plants are those that behave in this manner. However, century plants continuously produce “pups,” or offspring, that continue to develop even after the primary plant has perished. To create new plants, these pups can be divided up and transplanted. Indoor-grown century plants seldom ever have blossoms.
Do century plants just produce one bloom?
A: Agave americana, the century plant, is monocarpic, which means it only produces one bloom throughout its lifespan. Depending on the climate, that bloom might not develop for 10, 20, or even more years. Although there are a few species in the genus Agave that bloom repeatedly, many species only flower once.
The name “century plant” refers to how long it takes the slow-growing plant to flower—it doesn’t take 100 years.
The thick base rosette of gray-green leaves gives way to clusters of upward-facing yellow blooms at the tips of horizontal branches near the top of a long stalk. The candelabrum-like flower structure is perched on a flower stalk that may be 10 or 25 feet tall.
The century plant dies back after blooming, but offsets around its base typically give gardeners a supply of plants. The best places for century plants to grow are in the garden or in large pots, with well-draining soil and at least a half-day of direct sunlight. With a rosette of 20 to 40 leaves that can measure 12 feet across, they can grow to be huge, standing 6 to 8 or more feet tall. The waxy layer helps stop water loss, and the succulent foliage stores water. The enormous, nearly foot-wide leaves are rigid and smooth with sharp teeth around the margins that have used as weapons in some societies. They come in gray-green or gray-blue hues, as well as variegated varieties.
How old are agave plants?
You never know when your heart will grow a huge spear of asparagus. Agave plants will suddenly decide to do this after languishing in your yard silently for fifteen or twenty years. Agave plants are a static feature of the environment in Austin, Texas. You can find them placed in front of your favorite mid-range Mexican restaurant, stuck in a traffic island between a Bed Bath & Beyond and a Whataburger, or shaped into gigantic pineapples on grandmother’s lawns. I didn’t even know I had two of them in my yard until one of them poked me in the leg.
Even if it may be gorgeous, the agave has a way of making you feel relaxed. One day you pass the agave brandishing a telephone-poll-sized asparagus spear at the skies while leaning against your mailbox like a drunk. With regard to the asparagus, I’m not making any metaphors regarding European colonization of the Americas. It resembles a thick as a tree trunk asparagus spear that may be given to gods at a farm-to-table restaurant and protrudes from the center of a sluggish agave plant. Speaking aloud, “That’s strange. And the camper van resident in your neighbors’ driveway says to you: “Did you know that agaves and asparagus are related?
There are 200 species of plants in the Agave (genus Agave) family. Native to the Caribbean, the Southwest of the United States, and Mexico. The most common agave plant is most known for being used to make tequila, mezcal, and agave nectar (a sweetener). The agave species known as the century plant, or maguey, is most frequently used as a landscaping accent. The leather-like leaves of the agave are distinguished by their spiky prickles. Asymmetrical rosette-shaped agaves grow; some remain compact and spherical while others become floppy and unmanageable. A mature agave plant can reach a diameter of up to 20 feet, which is comparable to the size of a bounce house. Most plants are pleased to grow in pots or adorn elderly people’s yards. Agaves are a mess of paradoxes on top of everything else.
Number one: An agave is not a cactus.
Because it is spiky and native to the desert, agaves are frequently mistaken for cacti, although they are actually a completely different kind of plant from a different lineage. Agaves have thick, thinning, somewhat spiky leaves, similar to the aloe, which they are also not. A few thousand years before tequila was created, some agave plants generate sap that can be used to create pulque, a fermented alcoholic beverage. The 400 breasts of Mayahuel, the Nahuatl goddess of agave, were used to serve pulque. She spent some time dating Quetzalcoatl. Neither was Mayahuel a cactus.
Number two: Agaves lie about their age.
Most agaves only live for fifteen to thirty years, despite the fact that they are also known as century plants. Depending on your garden center, you might be able to prolong the life of an agave plant by pruning its lower leaves while leaving the leaves towards the plant’s top or the middle of its rosette. Agaves resemble oversized store pineapples when they have just been clipped. The agave in question will ultimately determine whether or not this strategy is successful. The only thing you can do for an agave after it has grown flower buds from its agave trunk is to assist in organizing the plant’s affairs. Whatever you do, you’re dealing with a plant that will survive a few domestic cats. Take or leave.
Number three: Agaves are not asparaguses.
Although the agave belongs to the same family as asparagus, it is not an asparagus. When agave plants are close to dying, they channel decades’ worth of energy into a massive asparagus death spear that is as strong and tall as a cell phone tower tree. The agave makes its last stand with a tremendous explosion of high strangeness. Common dinner-table asparagus is a member of the plant class known as monocots, or monocotyledons, just like the agave. They only have a single seed leaf (cotyledon). About this topic, a lot of people have a lot to say. My preferred explanation is from Dave’s Garden:
In essence, a cotyledon is the first leaf to emerge from a seed. Dicots have two, while monocots only have one. Major deal. Some plants only have one leaf when they first emerge from the ground, whereas others have two. There doesn’t seem to be enough variation to support a comprehensive system of plant classification. However, I suppose we must begin somewhere.
The majority of grass species, palm trees, lilies, orchids, and pineapple are all monocots. Asparagus is a long-distance ally of Asia, Africa, and Europe.
A single reproduction occurs just before the agave dies. Monocarpy is the process of reproducing only once, including blossoming, generating seeds, and dying. An agave accumulates all of its energy over the course of its lifecycle, waiting for the ideal moment to disperse its seeds and reproduce. When it rains in the desert, it’s as if all the sky demons have decided to empty their above-ground pools at once. It bunkers down, keeping all of its energy in its heart, and endures years of drought and periods of heavy rain. The agave then develops a huge, flowering asparagus spear out of its center for unknown reasons.
The agave throws a pollination sex party when the asparagus tree blooms. To disperse agave pollen and seeds, nectar-feeding bats, ants, hawkmoths, beetles, and doves arrive. The agave’s asparagus spear smashes to the ground when it dies, scattering seedlings haphazardly to create new agave plants. Or destroy a Subaru Outback in a cul-de-sac in South Austin.
A dead agave is a real nuisance to remove. Agaves feature thorny leaves and substantial root systems. The blue-gray leaves will turn into an awkward pile of crumbly, white plant death if they are allowed to rot, resembling a bunnicula hoedown. Old Doritos bags also appear to be drawn to clumps of dead agave. Check the nearest agave body for the discarded remnants and see if a teenager can locate food in it. A large dead one that is also wrapped around a mailbox and a dying cactus may be found in my area. Old karate awards are frequently left out in boxes by the same house, as though someone will steal them.
It is thought that agaves and bats co-evolved. Agave nectar is the main food source for long-nosed bats, an endangered species. In the pollen grains, the bats move around. When they take flight to search for more food, they spread fresh pollen that encourages cross-fertilization. An explanation from Bats Magazine follows:
The plant and the bat are mutualists because they both gain from their partnership. According to scientists, this relationship resulted through the coevolution of bats and plants, and the dependency between the two is so great that the plants would not be able to reproduce without the bats’ help, while the bats would starve to death in the absence of the plants. This association appears to be very sensitive to disruption.
One such disturbance is the production of tequila, which threatens the viability of agave and long-nosed bat populations. Agaves must be harvested before they flower in order to make tequila, which is made from the heart of the agave azul. Consequently, even though the loss of so many century plants in my neighborhood is heartbreaking, it is also lovely since it is preventing a number of long-nosed bats from becoming hungry.
The web of life is a complex system with links in all directions. No other planet is as teeming with life as ours, as far as we can tell. Sure, there might be some phosphorescent fish lurking in the frigid waters of Europa or creatures resembling tardigrades clinging to Ceres’ water vapor geyser. But if the agave’s asparagus death spear teaches us anything, it’s that life is precious and brief, that all living creatures have quiet links with one another, and that it’s never too late to start acting odd.
What size can century plants reach?
The common name of the plant is a little misleading because, contrary to what many people believe, it matures considerably more quickly. Typically, it takes century plants 8 to 30 years to flower.
A central stem on the mature plant can reach a height of 20 feet. This branching flower spire blooms with pale yellow or white blossoms in the summer. The spineless century plant (Agave attenuata), however, blooms several times a year and survives after most century plants do not.
The century plant is particularly remarkable, with huge succulent leaves that are strongly textured and have a greenish-blue tint. The leaves can grow up to 6 feet long and 10 inches wide, making them incredibly big. Up to 12 feet, the mature plant’s spread makes for a stunning appearance in any setting.
These plants must be placed far from where people may brush up against them due to the sharp spines that are located at the end of each serrated leaf. Planting the century plant at least 6 feet away from where humans and animals are strolling or playing is recommended.
The stunning twisted green leaves of the variegated century plant (A. americana ‘Marginata’) have vivid yellow marginal stripes. The striped leaves resemble ribbons that have been folded and coiled over one another. The leaves of the century plant can reach a maximum length of 6 feet and 10 inches and a maximum width of 10 inches.
Even while century plant can give a striking element to your landscape, every yard may not be a good fit for its size at maturity and its angular leaf. Check out the spineless century plant if you want similar aesthetics but with a scaled-down and less-pointy design (A. attenuata).
The spineless century plant, which grows to be between 2 and 3 feet tall and 3 to 6 feet across, is ideal for smaller settings because it doesn’t get as big. Individual evergreen leaves are between 1.5 and 3 feet long and have a pale blueish green color. It is a less dangerous option for yards where children and/or pets are present because these leaves don’t have the same sharp edge as those of A. americana. Around ten years after planting, pale yellow to white flowers begin to bloom seasonally throughout the year.