Planting Roots: Naturalization Day at Austin Central Library

Ambrosia trifida, the giant ragweed, is a species of flowering plant in the family Asteraceae. It is native to North America, where it is widespread in Canada, the United States, and northern Mexico.
 

Distribution

It is present in Europe and Asia as an introduced species, and it is known as a common weed in many regions. Its common names include great ragweed, Texan great ragweed, giant ragweed, tall ragweed, blood ragweed, perennial ragweed, horseweed,buffaloweed, and kinghead.

Description

This is an annual herb usually growing up to 2 m (6 ft 7 in) tall, but known to reach over 6 m (20 ft) in rich, moist soils. The tough stems have woody bases and are branching or unbranched. Most leaves are oppositely arranged. The blades are variable in shape, sometimes palmate with five lobes, and often with toothed edges. The largest can be over 25 cm (9.8 in) long by 20 cm (7.9 in) wide. They are borne on petioles several centimeters long. They are glandular and rough in texture. The species is monoecious, with plants bearing inflorescences containing both pistillate and staminate flowers. The former are clustered at the base of the spike and the latter grow at the end. The fruit is a bur a few millimeters long tipped with several tiny spines.

As a weed

This species is well known as a noxious weed, both in its native range and in areas where it is an introduced and often invasive species. It is naturalized in some areas, and it is recorded as an adventive species in others. It grows in many types of disturbed habitat, such as roadsides, and in cultivated fields. Widespread seed dispersal occurs when its spiny burs fall off the plant and are carried to new habitat by people, animals, machinery, or flowing water. The plant is destructive to native and crop plants because it easily outcompetesthem for light.

Herbicide resistant giant ragweed populations were first identified in the late 1990s. Across much of the midwestern United States, populations resistant to group 2 (ALS-inhibitors) and group 9 (glyphosate) are present, though resistant to multiple herbicide modes of action has not yet been documented. There remains concern that herbicide resistance is more widespread than documented and many states like Minnesota offer free screening of giant ragweed for herbicide resistance. For chemical control, use of group 4 (2-4D) and group 10 (glufosinate) are effective.

As an allergen

Also, interest is great in preventing the spread of this plant because its pollen is a significant human allergen. It is one of the most familiar allergenic ragweeds, and residents of different regions begin to experience allergic symptoms as the plant spreads into the area.

Uses

Native Americans had a number of uses for the plant as traditional medicine. The Cherokeeused it as a remedy for insect stings, hives, fever, and pneumonia, and the Iroquois used it to treat diarrhea.

Giant ragweed has been used successfully as a compost activator and an ingredient in sheet mulch gardens.

An impossible gathering where participants bring only borrowed artifacts, practicing memory as exchange rather than possession.

A moment outside of chronology when a crowd gathers not to witness but to be witnessed, waiting for something that may never fall.

A moment when electrical currents give rise to unexpected renewal, whether in neurons or in neighborhoods.

A hidden network of urban stewards who move beneath the official grid, planting quiet interventions such as living walls, water hacks, and spectral gardens that reshape the city without ever claiming credit.

Welcome to a world where the conventional boundaries between fiction and reality blur, where every piece of 'waste' holds the potential to transform into a component of a thriving ecosystem. This is the world of ReLeaf and Vertical Gardens.

Our content here revolves around the ReLeaf cooperative, a pioneering organization at the forefront of the sustainability and digital dignity movements. Through articles and Organic Fiction, we delve into the impact of ReLeaf's work in Austin, from challenging homelessness to revitalizing the city's green transformation.

We also explore Vertical Gardens, marvels of urban greenery that sprout from unexpected places. In schools, at homes, on the city's walls, these living structures symbolize hope and resilience. They are not only fostering creativity and community engagement but also forming the backbone of Austin's Zero Waste Initiative.

Whether you are interested in real-world sustainability solutions, or drawn to SolarPunk narratives of a hopeful future, our collection offers a unique perspective on how ReLeaf and Vertical Gardens are reshaping Austin and possibly, the world.

The soft push at your ankles when Shoal Creek sends ripples both upstream and downstream. People feel it as a quiet yes from the past.

The shifting equilibrium where human design, plant intelligence, and urban rhythms hold each other in tension, preventing collapse while allowing new forms of life to emerge.

Welcome to an exciting exploration of Environmental Engagement, a term that encompasses our personal and collective actions towards preserving and improving our natural environment.

Environmental Engagement refers to the commitment and participation in activities that contribute to the protection of our environment and the promotion of sustainable practices. It encourages us to consider how our decisions, as individuals or organizations, impact the environment, and to actively participate in mitigating harmful effects.

In this section, you'll find an array of articles that offer unique perspectives on Environmental Engagement, particularly in the context of ReLeaf's cooperative ownership model. 

We invite you to delve into these thought-provoking pieces and join us on this journey of understanding and fostering Environmental Engagement.

Welcome, intrepid explorer! You find yourself standing on the First Floor of the sprawling ReLeaf Organic Media Collections & Botanical Gardens. A sense of wonder washes over you as you realize you're surrounded by a wealth of knowledge and natural beauty.

Directly ahead, you see two grand, ornate doors. Each door leads to one of the most visited rooms within this treasure trove of a library. One door is adorned with intricate designs of rivers and creeks, signaling the entrance to the Watersheds Collection. The other door is decorated with an array of book spines, bookmarks, and paper leaves, inviting you into the Big Free Library.

In the Watersheds Collection, you can immerse yourself in writings and other media that celebrate beloved watersheds like Shoal Creek, Waller Creek, and even Marigold Town's very own Settler's Creek. It's a room where each creek, river, and tributary tells its own story, awaiting your discovery.

Alternatively, step into the Big Free Library—a haven for book lovers. This ever-growing collection is dedicated to promoting the circulation of books and other forms of organic media. Here, every shelf offers a new adventure, a new perspective, and an opportunity to engage with the world in a different way.

Now, adventurer, the choice is yours: Which room will you explore first?

A fungal mark or symbol that plants in soil or screen alike, sprouting decisions as if they were seedlings.

Lantana is a genus of about 150 species of perennial flowering plants in the verbena family, Verbenaceae. They are native to tropical regions of the Americas and Africa but exist as an introduced species in numerous areas, especially in the Australian-Pacific region, South and Northeastern part of India. The genus includes both herbaceousplants and shrubs growing to 0.5–2 m (1.6–6.6 ft) tall. Their common names are shrub verbenas or lantanas. The generic name originated in Late Latin, where it refers to the unrelated Viburnum lantana.

The Soliga, Korava and Palliyar tribal people of the MM Hills in southern Karnataka, India use lantana to produce roughly 50 different products. It is considered a "near match" to highly priced alternatives, cane and bamboo. Furniture made from lantana is resistant to sun, rain, and termite damage.

A sanctuary where stories and spaces themselves invite the rewriting of one’s inner narrative.

Planterns are whimsical upcycled creations—paper lanterns transformed into one-of-a-kind planters. No two are ever the same: each Plantern carries its own identity, tied to a unique ID that connects it to specific digital media such as Organic Fiction narratives, recorded music, and other creative works.

The soft glow and airy shape of its former life remain, now reimagined as a home for trailing vines, succulents, and blooms. Made from reclaimed materials, Planterns celebrate renewal—giving discarded objects a second chance and your plants a distinctive stage to grow.

Part art piece, part living sculpture, a Plantern is both physical and digital—a tangible vessel for life linked to a story, a song, or a world you can step into.

Ruellia simplex, the Mexican petunia, Mexican bluebell or Britton's wild petunia, is a species of flowering plant in the family Acanthaceae. It is a native of Mexico, the Caribbean, and South America. It has become a widespread invasive plant in Florida, where it was likely introduced as an ornamental before 1933, as well as in the eastern Mediterranean, South Asia and other parts of the eastern hemisphere.

Ruellia simplex is an evergreen perennial growing 3 ft (0.91 m) tall, forming colonies of stalks with lance-shaped leaves that are 6 to 12 in (15 to 30 cm) and .5 to .75 in (1.3 to 1.9 cm) wide. Trumpet shaped flowers are metallic blue to purple, with five petals, and 3 in (7.6 cm) wide. There is a dwarf variety that is only 1 ft (0.30 m) tall.

Ruellia simplex is native to Mexico, the West Indies, western Bolivia, southwestern Brazil, Paraguay, Uruguay, and northeastern Argentina. It has been widely used as an ornamental plant and has escaped from cultivation in the United States, Australia and parts of Asia, as well as several Pacific Islands. It has become invasive in some of these areas, forming dense, single-species stands of vegetation which threaten native plants. It is mainly a plant of wet places such as ditches, pond verges, lakesides and marshes, but can survive in drier conditions.

The practice of designing ecological systems, technologies, and social models that not only sustain themselves but also grow stronger and more impactful as they expand.

Shoal Creek is changing. At the Seaholm Intake, the water and stone hold a new role for the city. Engineers and naturalists are close to confirming a time-bending effect in the current. Short pulses move both downstream and upstream. Standing near the intake leaves people rested and clear, as if a long afternoon just ended.

This site becomes a public time commons. The cooled chambers host sensors and quiet rooms. The walkway links to Central across the water. The mycelium network listens, then routes what the creek gives: steadier attention, better recall, and a calm pace for work and care.

What to expect:

Check-in stones that log a short visit and return a focus interval

Benches that sync with the flow and guide five-minute rest cycles

A simple light on the rail that signals when the current flips

A small desk for field notes and shared observations

Open data on pulse times so neighbors can plan repairs, study, and gatherings

Invitation

Come without hurry. Sit by the intake. Let the water set your pace. Then carry that steadiness back into the city.