Rosilla - Helenium puberulum (Taxonomy, Characteristics, Flower, Images)

Rosilla

You’ll most likely find rosilla (Helenium puberulum) growing beside rivers and streams. When the flowers first appear, they’re a sunny yellow. This flower is a favorite for various birds like goldfinches and is a highly desirable stop for various pollinating insects. Butterflies enjoy the nectar and use it as a food source during migration.

Scientific classification

Species

Rosilla (Helenium puberulum)

Asters bellflowers fanflowers and allies

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Annual, Perennial

Lifespan

60 cm

Spread

9 mm to 1.9 cm

Flower Size

Yellow, Red, Brown

Flower Color

Deciduous

Leaf type

20 - 35 ℃

Ideal Temperature

Images of Rosilla

Distribution of Rosilla

Distribution Map

Rosilla originates from the major region of North America. It has since spread and been introduced to territories in Oceania. The plant is naturally adapted to its indigenous range and, over time, has been able to establish itself in new regions where conditions are favorable.

Native

Cultivated

Invasive

Introduced

No species reported

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Habitat

Moist meadows, marshes, slough banks

Hemisphere Trend Curve

Northern

Sorthern

Care Guide for Rosilla

Every week

Water

Full sun

Sunlight

20 - 35 ℃

Ideal Temperature

Water: Rosilla thrives in moist environments, requiring consistent hydration with evenly moist soil. Weekly watering supports its vigor, especially during active growth cycles. As an herbaceous perennial, careful irrigation is essential, reflecting its adaptation to regions with regular rainfall.

Fertilize: Rosilla require phosphorus-rich fertilizers for optimal flowering. Apply a balanced, slow-release formula (10-20-10) at the growing season's start, with monthly doses. Reduce to bi-monthly or stop during dormancy. Adjust feeding for mature plants to prevent harm and ensure healthy growth and blooms.

Pruning: Rosilla features vibrant, daisy-like flowers and thrives with proper pruning. Prune in early to late spring to remove damage and enhance blooms. Cut back after flowering for bushier growth. Regular deadheading extends the bloom period. Use clean, sharp tools to maintain plant health.

Propagation: Rosilla is a resilient perennial that grows in various soil conditions, thriving in well-aerated, consistently moist environments. Propagation is best through sowing. It benefits from a balance of sunlight and partial shade, with gentle handling during transplantation to protect roots and encourage growth.

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Images of Rosilla

Distribution of Rosilla

Care Guide for Rosilla

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