Oldham groundsel (Sinosenecio oldhamianus)

Oldham groundsel

Oldham groundsel is an annual or biennial herb that is rarely found outside of China. It usually grows at the margins on streams, forests, and cultivated fields and displays weedy tendencies. In contrast, in Thailand, where a few oldham groundsel have been found, the plant displays low genetic diversity and is classified as endangered.

Scientific classification

Species

Oldham groundsel (Sinosenecio oldhamianus)

Asters bellflowers fanflowers and allies

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All year round

Bloom Time

40 cm to 80 cm

Plant Height

Yellow

Flower Color

Semi-evergreen

Leaf type

Images of Oldham groundsel

Distribution of Oldham groundsel

Distribution Map

Oldham groundsel is indigenous to the subtropical regions of East Asia, thriving in a variety of habitats within this locale. The species has not been widely reported as introduced or naturalized in other major regions beyond its native range.

Native

Cultivated

Invasive

Introduced

No species reported

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Habitat

Forest margins, streamsides, wet rocky and grassy places, margins of cultivated fields

Hemisphere Trend Curve

Northern

Sorthern

Care Guide for Oldham groundsel

Every week

Water

Partial sun

Sunlight

Water: Originating from moist environments, oldham groundsel thrives with consistent hydration, requiring weekly watering. This outdoor plant adapts well to temperate climates, benefiting from natural rainfall patterns that align with its growth cycles.

Fertilize: Oldham groundsel requires balanced nutrition fertilizers during active growth to promote healthy foliage, using high nitrogen variants for vigorous growth. Apply monthly in the growing season and ease in winter with dilute solutions to prevent root burn, varying quantity with plant size. Wear gloves and wash hands post-application.

Pruning: This shade-loving perennial, oldham groundsel, thrives with early to late spring pruning. Remove dead stems, thin dense areas for air circulation, and trim long stems for even growth. Regular pruning enhances bushiness and aesthetic appeal while preventing legginess, promoting overall vigor.

Propagation: The hearty perennial oldham groundsel prefers well-drained soil and ample sunlight. Propagate by sowing small seeds on the surface of moist growing medium, ensuring consistent moisture without overwatering. Provide a stable environment away from extreme conditions for optimal seedling development.

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Images of Oldham groundsel

Distribution of Oldham groundsel

Care Guide for Oldham groundsel

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