Sowthistles - Sonchus (Taxonomy, Characteristics, Distribution, Images)

Sowthistles

Also known as: Hare thistles

Sowthistles is a genus in the sunflower family and the dandelion tribe. The species in this genus are sure to be familiar because they are common garden weeds. These fast-spreading plants have yellow flowers and propagate, like most dandelions, by seeds that are carried on the wind. Some species have prickly leaves and most have characteristic variegated leaves.

Scientific classification

Genus

Sowthistles (Sonchus)

Family

Daisy

Order

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

Annual, Biennial

Lifespan

Spring, Summer

Growth Season

Moderate

Growth Rate

Images of Sowthistles

Species

Common sowthistle Spiny sowthistle Slender sowthistle Perennial sow thistle Marsh sow-thistle Moist sowthistle Perennial sowthistle Sonchus brachyotus Chatham island sow thistle

Quickly Identify Sowthistles

Rosette of waxy leaves with variable margins, lacking prickles on mid-vein.

Bright yellow flowers transitioning into seedheads resembling dandelion for wind dispersal.

Flowers with small size (0.5 inch/1.3 cm), yellow ray florets opening in morning.

Fruit with achenes adorned with tufts of white hairs, dark and ribbed.

Leaves up to 8 inches (20 cm) long, deep triangular lobes on lower leaves.

Identify plants with a snap

Instantly identify plants with AI: Snap a photo, and get accurate results within seconds.

Download the App for Free

Care Guide for Sowthistles

Every week

Water

Water: Sowthistles prefers moderate climates and requires consistent moisture without waterlogging. Weekly watering is essential for its health. As an herbaceous plant, it thrives outdoors, utilizing natural rainfall to support its growth cycle.

Propagation: Propagation of sowthistles primarily occurs via seed sowing, with cuttings and division as alternatives. Successful growth requires well-draining soil, adequate light, and mild temperatures. Caution is advised to prevent invasiveness. Seed propagation involves collecting seeds, shallow sowing, and maintaining moisture until germination.

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 Sowthistles

How to Grow and Care

Plant disease auto-diagnose & prevention

AI-powered plant doctor helps you diagnose plant problems in seconds.

Download the App for Free