Scarlet larkspur (Delphinium cardinale)

Scarlet larkspur

Native to the west coast of North America, where it's primarily found in California and Baja California, this perennial wildflower is often used in ornamental gardens. The scarlet red flower clusters of scarlet larkspur attract hummingbirds, which are its main pollinators. All members of the Delphinium genus are toxic, including Delphinium cardinale.

Scientific classification

Species

Scarlet larkspur (Delphinium cardinale)

Buttercups, poppies and allies

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Toxic to Pets

Toxicity

Perennial

Lifespan

Herb

Plant Type

2.5 cm

Flower Size

Red

Flower Color

Semi-evergreen

Leaf type

15 - 35 ℃

Ideal Temperature

Images of Scarlet larkspur

Distribution of Scarlet larkspur

Distribution Map

Scarlet larkspur boasts a distribution that is native to the southwestern region of North America, with its presence largely confined to areas characterized by a Mediterranean climate.

Native

Cultivated

Invasive

Introduced

No species reported

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Habitat

Hot, dry openings in brush & woods below 5000 ft

Hemisphere Trend Curve

Northern

Sorthern

Culture

Symbolism

An open heart

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Care Guide for Scarlet larkspur

Every week

Water

Full sun

Sunlight

15 - 35 ℃

Ideal Temperature

Water: Scarlet larkspur originates from California's dry woodlands, thriving in a Mediterranean climate with wet winters and dry summers. It prefers well-drained soils with periodic moisture. Weekly watering sustains health without causing root rot, and it benefits from natural rainfall during its growing season.

Fertilize: Fertilize scarlet larkspur with balanced 10-10-10 NPK every 4-6 weeks during the growing season for optimal health and blooms. Avoid over-fertilization, use slow-release or diluted feeds, and reduce frequency in cooler months. Monitor scarlet larkspur's response to adjust care practices effectively.

Pruning: Scarlet larkspur is a vibrant perennial with tall spikes and bright red flowers. Prune in early to late spring to remove damaged stems and promote growth. Trim spent flowers for a second bloom. Maintain healthy leaves for photosynthesis, enhancing airflow and reducing disease risk.

Propagation: Scarlet larkspur is a perennial needing specific propagation techniques. Semi-ripe cuttings from healthy, non-flowering stems are ideal. Use well-draining soil and maintain consistent moisture, avoiding waterlogging. Rooting hormone can aid success, followed by transplanting into individual pots for maturation before outdoor relocation.

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