Canyon ragweed (Ambrosia ambrosioides)

Canyon ragweed

Also known as: Big bur-sage, Ambrosia bursage

Canyon ragweed is a member of the sunflower family, although it looks nothing like a traditional sunflower. This plant blooms in early spring and is followed by a fruit that resembles a prickly burr.

Scientific classification

Species

Canyon ragweed (Ambrosia ambrosioides)

Asters bellflowers fanflowers and allies

Instantly identify plants with a snap

Snap a photo for instant plant ID, gaining quick insights on disease prevention, treatment, toxicity, care, uses, and symbolism, etc.

Download the App for Free

Perennial

Lifespan

1 m to 2 m

Plant Height

6 mm to 8 mm

Flower Size

Yellow, Green

Flower Color

Deciduous

Leaf type

20 - 38 ℃

Ideal Temperature

Images of Canyon ragweed

Distribution of Canyon ragweed

Distribution Map

Canyon ragweed is a plant native to the major regions of North America. Over time, its presence has expanded beyond its natural range due to various factors, leading to it being introduced to other continents and areas where it thrives in similar climates.

Native

Cultivated

Invasive

Introduced

No species reported

Discover plant distribution and habitat

Gain insights into where plants thrive and how they adapt, helping you identify, cultivate, and protect them with essential information on habitats, distribution maps, and climate trends.

Download the App for Free

Habitat

Sandy washes, other disturbed areas, roadsides, rock crevices

Hemisphere Trend Curve

Northern

Sorthern

Care Guide for Canyon ragweed

Every week

Water

Full sun

Sunlight

20 - 38 ℃

Ideal Temperature

Water: Originating from arid environments, canyon ragweed excels in drought tolerance and requires weekly watering for optimal health. Typically grown outdoors, it regulates water loss through its leaves, making it ideal for xeriscaping across diverse climate zones.

Fertilize: Fertilizing canyon ragweed every 4-6 weeks with high-nitrogen fertilizers during growth phases enhances resilience. In bloom season, use a balanced fertilizer. Always water post-fertilization and adjust based on canyon ragweed's lifecycle response to ensure optimal health and vigor.

Pruning: Canyon ragweed' thrives in dry, rocky habitats and benefits from pruning in early to late spring. Focus on removing dead or diseased branches and thinning crowded areas for better air circulation. Clean cuts with sanitized tools promote healthier growth and a tidier appearance.

Propagation: Canyon ragweed is propagated by sowing fresh seeds in well-draining soil, spaced adequately for growth. Seeds should be lightly covered for protection while ensuring light access for germination. Maintain consistent moisture without waterlogging, and consider canyon ragweed's preference for sunny locations and resistance to arid conditions.

Get tips and tricks for your plants.

Keep your plants happy and healthy with our guide to watering, lighting, feeding and more.

Download the App for Free

Learn More About Canyon ragweed