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Summary
Gallant soldier is a small but remarkably productive edible wild plant originally from South America that has spread around the world. Although often dismissed as a garden weed because of its rapid growth and abundant seed production, it is also a valued leafy vegetable and culinary herb. In Colombia and other parts of South America, where it is known as guascas, it is an important traditional ingredient, especially in soups. The leaves have a distinctive, pleasant flavor that separates this plant from many common wild greens. Gallant soldier (Galinsoga parviflora) belongs to the sunflower family (Asteraceae) and the genus Galinsoga. Common names include gallant soldier, quickweed, potato weed, kew weed, and guascas. It is a fast-growing annual herb that grows approximately 7–50 cm tall with a spread of around 10–40 cm depending on growing conditions. It is generally suited to USDA Zones 5–11, though it completes its life cycle rapidly as a warm-season annual and survives colder regions through seed.
Physical Characteristics

Galinsoga parviflora is a ANNUAL growing to 0.5 m (1ft 8in) by 0.4 m (1ft 4in).
See above for USDA hardiness. It is hardy to UK zone 6. It is in flower from May to October. The species is hermaphrodite (has both male and female organs) and is pollinated by Insects. The plant is self-fertile.
Suitable for: light (sandy), medium (loamy) and heavy (clay) soils. Suitable pH: mildly acid, neutral and basic (mildly alkaline) soils. It can grow in semi-shade (light woodland) or no shade. It prefers moist soil.
UK Hardiness Map
US Hardiness Map
Synonyms
Galinsoga parviflora Cav. var. parviflora. Galinsoga parviflora Cav. var. semicalva A. Gray
Plant Habitats
Cultivated Beds;
Edible Uses
Edible Parts: Flowers Leaves Shoots Stem
Edible Uses: Condiment Drink
Gallant soldier is edible both fresh and cooked. The leaves are the primary edible part and are the most useful portion of the plant. Young leafy growth can be eaten raw in salads, added to cooked dishes, dried as a seasoning, or used as a herb [2-3]. The stems, roots, and flowers are less desirable because they can become fibrous, chewy, or tough. The flowers can, however, be used to make a pleasant herbal tea [2-3]. Edible Uses & Rating: Leaves are the main edible resource. They may be eaten fresh, cooked as greens, added to soups, or dried and stored as a seasoning herb. Flowers may be steeped into tea, though they are generally not as useful as the foliage [2-3]. Edibility Rating: 4/5. Gallant soldier earns a high rating because of its good flavor, nutritional value, abundance, and versatility. Its main limitation is the small size of individual plants, requiring many plants to produce a large harvest [2-3]. Taste, Processing & Kitchen Notes: Fresh gallant soldier leaves have a mild but complex flavor. The taste combines qualities similar to lettuce, chicory, mild thistle greens, and herbal notes reminiscent of chamomile. A slight resinous character gives the plant its distinctive flavor. Young leaves have a soft texture and can be eaten raw. Fine surface hairs may create a slightly rough texture, but they are not usually noticeable when eaten. Cooking softens the leaves and makes them suitable as a vegetable. Whole mature plants are less desirable because the stems can contain tough fibers. For best quality, harvest only tender leafy shoots and separate the leaves from older stems. Dried leaves retain their flavor well and are traditionally used as a seasoning. Guascas is a key ingredient in Colombian ajiaco, a chicken-and-potato soup in which the herb contributes its characteristic aroma [2-3]. Nutritional Value: Gallant soldier is unusually nutritious for a small wild green. The leaves contain useful amounts of protein, minerals, and vitamins. The plant is particularly notable for its calcium and iron content, making it a valuable leafy vegetable in its traditional regions. As with many wild greens, nutritional levels vary with soil fertility and growing conditions [2-3]. Seasonality (Phenology): Gallant soldier grows quickly during warm weather and can complete its life cycle in a short period. It usually appears from late spring through summer and continues to grow until frost. Flowering occurs mainly in summer, although in favorable climates, plants may flower for a much longer period [2-3]. Safety & Cautions (Food Use): Gallant soldier is widely consumed as food and is considered one of the better edible wild greens. As with many leafy vegetables, young, healthy plants provide the best quality. Avoid diseased plants, plants growing in contaminated soil, or old material that has become tough. Leaves should be washed carefully because the plant often grows close to the ground. Harvest & Processing Workflow: Harvest young, vigorous plants before the stems become woody or fibrous. Strip leaves and tender growing tips from the stems. Fresh leaves can be used immediately, cooked briefly as greens, added near the end of soups, or dried for later use as a seasoning. Cultivar/Selection Notes: Gallant soldier is not commonly cultivated as a formal vegetable crop, but it is gathered and sometimes encouraged in traditional food systems. Selection would likely focus on larger leaves, slower flowering, and improved productivity. Look-Alikes & Confusion Risks: Gallant soldier may resemble other small members of the sunflower family, especially weedy annuals with opposite leaves and small flower heads [2-3]. A key identification feature is the combination of opposite-toothed leaves and very small daisy-like flower heads with tiny white rays surrounding yellow disk flowers [2-3]. Traditional/Indigenous Use Summary: In its native South America, the gallant soldier has a long history as a food plant. Known as guascas, it remains especially important in Colombian cuisine, where dried leaves are used as a distinctive culinary herb. The leaves, stem and flowering shoots - raw or cooked and eaten as a potherb, or added to soups and stews[55, 62, 144, 183]. They can be dried and ground into a powder, then used as a flavoring in soups, etc[183]. A bland but very acceptable food[85, 144], it makes a fine salad either on its own or mixed with other leaves[9]. The fresh juice can be mixed with tomato or vegetable juices and drunk [183]. Although considered a weed in many agricultural systems, it is useful as a vegetable, demonstrating how some successful wild plants can also become valuable foods.
References More on Edible Uses
Medicinal Uses
Plants For A Future can not take any responsibility for any adverse effects from the use of plants. Always seek advice from a professional before using a plant medicinally.
Astringent Stings
When rubbed onto the body, the plant is useful in treating nettle stings[240]. The juice of the plant is applied to treat wounds, It helps to coagulate the blood of fresh cuts and wounds[272].
References More on Medicinal Uses
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Other Uses
Ecology & Wildlife: Gallant soldier occupies disturbed habitats and quickly covers bare soil. Flowers support small insects, while seeds may be eaten by birds and other wildlife. Although often considered a weed, it provides ecological benefits and a useful edible resource when managed appropriately. Although rarely intentionally grown, gallant soldier is easy to cultivate. Seeds germinate readily, and plants mature quickly. It can be managed as a self-seeding edible green, but control may be required where unwanted spread is a concern.
Special Uses
References More on Other Uses
Cultivation details
Gallant soldier is a classic example of an overlooked edible weed. It grows quickly, produces abundantly, and provides flavorful, nutritious leaves. While individual plants are small, dense colonies can provide significant harvests. For gardeners and foragers willing to appreciate useful weeds, gallant soldier is a valuable wild vegetable. Growing Conditions: Gallant soldier prefers fertile, moist, disturbed soils but adapts to a wide range of conditions. It commonly grows in gardens, agricultural fields, roadsides, waste areas, and disturbed habitats. It performs best with good moisture and rich soil but can survive less favorable conditions. Habitat & Range: Native to South America, the gallant soldier is now naturalized in many parts of the world, including North America, Europe, Africa, Asia, and Australia. It is especially common in cultivated areas and disturbed soils. Size & Landscape Performance: Plants are small, soft-stemmed annuals, reaching approximately 7–50 cm tall. Growth is rapid, and multiple generations may occur during a single growing season in warm climates. Cultivation (Horticulture): Although rarely intentionally grown, gallant soldier is easy to cultivate. Seeds germinate readily, and plants mature quickly. It can be managed as a self-seeding edible green, but control may be required where unwanted spread is a concern. Pests & Problems: Gallant soldier has few serious pest problems and grows vigorously in favorable environments. Leaves should be checked before harvesting because fungal diseases and leaf damage can occur, especially in humid conditions. Identification & Habit: An annual herb growing from fibrous roots. Stems are lightly hairy and upright. Leaves are simple, opposite, stalked, lance-shaped, and finely toothed along the margins. Flower heads are very small, usually only a few millimeters across, with tiny white ray flowers surrounding yellow disk flowers. Fruits are small black cypselae with structures that aid dispersal. Pollinators: The small flowers attract a variety of insects, especially small native bees, flies, and other generalist pollinators. Although not a major nectar source compared with larger wildflowers, it contributes to biodiversity because it flowers quickly and reliably. An easily grown plant, it succeeds in most soils preferring well-drained conditions and full sun or partial shade. Gallant soldier (Galinsoga parviflora) belongs to the sunflower family (Asteraceae) and the genus Galinsoga. Common names include gallant soldier, quickweed, potato weed, kew weed, and guascas. It is a fast-growing annual herb that grows approximately 7–50 cm tall with a spread of around 10–40 cm depending on growing conditions. It is generally suited to USDA Zones 5–11, though it completes its life cycle rapidly as a warm-season annual and survives colder regions through seed.
References Carbon Farming Information and Carbon Sequestration Information
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Plant Propagation
Propagation is entirely by seed. Plants produce abundant seeds and can rapidly colonize open ground. Seed - sow spring in situ[200]. Germination usually takes place within a month.
Other Names
If available other names are mentioned here
Gallant soldier, quickweed, potato weed, kew weed, and guascas.
Native Range
NORTHERN AMERICA: United States (New Mexico, Texas, Arizona), Mexico (Baja California Sur, Chihuahua, Coahuila de Zaragoza, Durango, Nuevo León, San Luis Potosí, Sinaloa, Sonora, Tamaulipas, Zacatecas, Aguascalientes, Chiapas, Ciudad de México, Colima, Guanajuato, Hidalgo, Jalisco, México, Michoacán de Ocampo, Morelos, Nayarit, Oaxaca, Puebla, Querétaro, Tlaxcala, Veracruz de Ignacio de la Llave) SOUTHERN AMERICA: Hispaniola, Guadeloupe, Jamaica, Martinique, United States (Puerto Rico), Venezuela, Brazil (Paraná, Rio Grande do Sul, Santa Catarina, São Paulo), Bolivia, Colombia, Ecuador, Peru, Argentina, Chile, Paraguay (Central, Guairá), Uruguay
Weed Potential
Right plant wrong place. We are currently updating this section.
Please note that a plant may be invasive in one area but may not in your area so it's worth checking.
High. Gallant soldier is considered an agricultural weed in many regions because it grows quickly, produces many seeds, and competes with crops. Its rapid growth is also what makes it valuable as a wild food. Regular harvesting before seed production can help control spread.
Conservation Status
IUCN Red List of Threatened Plants Status : Not listed.
Growth: S = slow M = medium F = fast. Soil: L = light (sandy) M = medium H = heavy (clay). pH: A = acid N = neutral B = basic (alkaline). Shade: F = full shade S = semi-shade N = no shade. Moisture: D = dry M = Moist We = wet Wa = water.
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Botanical References
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